From 5cfc765ff6f2d1a99588f33a95bd4c4501e5771a Mon Sep 17 00:00:00 2001
From: _Kerman <kermanx@qq.com>
Date: Wed, 9 Sep 2026 12:11:13 +0800
Subject: [PATCH 01/32] docs(session): deprecate direct event readers

---
 docs/subsystems/session.i18n.yaml      | 4 ++--
 docs/subsystems/session.md             | 3 +++
 docs/subsystems/session.zh.md          | 3 +++
 packages/core/session/README.i18n.yaml | 4 ++--
 packages/core/session/README.md        | 2 +-
 packages/core/session/README.zh.md     | 2 +-
 packages/core/session/src/index.ts     | 3 +++
 7 files changed, 15 insertions(+), 6 deletions(-)

diff --git a/docs/subsystems/session.i18n.yaml b/docs/subsystems/session.i18n.yaml
index 26fee2e323..4d4f5bc022 100644
--- a/docs/subsystems/session.i18n.yaml
+++ b/docs/subsystems/session.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write docs/subsystems/session.md
-session.md: de0930ea7effcba69bc1f9a4dd405ceda23919d7
-session.zh.md: ec15dbdec3a8887d8fa87c9698b8ad14699a534b
+session.md: 077e90c66abe3b5f3f24d14c3fb25f356d887fa8
+session.zh.md: 6b9ceb85a276b0221c1e6ff474fbcdea77dff1fd
diff --git a/docs/subsystems/session.md b/docs/subsystems/session.md
index de0930ea7e..077e90c66a 100644
--- a/docs/subsystems/session.md
+++ b/docs/subsystems/session.md
@@ -473,6 +473,7 @@ declare class Session {
   ): Session;
   /**
    * Return the immutable event stored at one exact sequence number.
+   * @deprecated Existing logic may remain unmigrated for now, but new calls are prohibited.
    * @param seq - event sequence number.
    * @returns the accepted event, or undefined when the log does not contain it.
    */
@@ -481,6 +482,7 @@ declare class Session {
    * Materialize an immutable snapshot of a half-open event sequence range.
    * A full current snapshot is reused until the next append; every previously
    * returned snapshot remains stable after later appends.
+   * @deprecated Existing logic may remain unmigrated for now, but new calls are prohibited.
    * @param fromSeq - non-negative inclusive sequence number; defaults to the log start.
    * @param toSeqExclusive - non-negative exclusive sequence number; defaults to the current end.
    * @returns a frozen array of the selected deeply frozen events.
@@ -491,6 +493,7 @@ declare class Session {
   ): readonly SessionEvent[];
   /**
    * Return this Session's events after its fork-inherited prefix.
+   * @deprecated Existing logic may remain unmigrated for now, but new calls are prohibited.
    * @returns a fresh array containing child-owned events in log order.
    */
   ownEvents(): readonly SessionEvent[];
diff --git a/docs/subsystems/session.zh.md b/docs/subsystems/session.zh.md
index ec15dbdec3..6b9ceb85a2 100644
--- a/docs/subsystems/session.zh.md
+++ b/docs/subsystems/session.zh.md
@@ -475,6 +475,7 @@ declare class Session {
   ): Session;
   /**
    * Return the immutable event stored at one exact sequence number.
+   * @deprecated Existing logic may remain unmigrated for now, but new calls are prohibited.
    * @param seq - event sequence number.
    * @returns the accepted event, or undefined when the log does not contain it.
    */
@@ -483,6 +484,7 @@ declare class Session {
    * Materialize an immutable snapshot of a half-open event sequence range.
    * A full current snapshot is reused until the next append; every previously
    * returned snapshot remains stable after later appends.
+   * @deprecated Existing logic may remain unmigrated for now, but new calls are prohibited.
    * @param fromSeq - non-negative inclusive sequence number; defaults to the log start.
    * @param toSeqExclusive - non-negative exclusive sequence number; defaults to the current end.
    * @returns a frozen array of the selected deeply frozen events.
@@ -493,6 +495,7 @@ declare class Session {
   ): readonly SessionEvent[];
   /**
    * Return this Session's events after its fork-inherited prefix.
+   * @deprecated Existing logic may remain unmigrated for now, but new calls are prohibited.
    * @returns a fresh array containing child-owned events in log order.
    */
   ownEvents(): readonly SessionEvent[];
diff --git a/packages/core/session/README.i18n.yaml b/packages/core/session/README.i18n.yaml
index fd052eb9f9..ed9b39bdff 100644
--- a/packages/core/session/README.i18n.yaml
+++ b/packages/core/session/README.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write packages/core/session/README.md
-README.md: a06b22b5e8f48743047c68e883edd496fbc6eb77
-README.zh.md: 755894b4c30f0a3807f472cece32685d102efbeb
+README.md: 402f3536402d78d0a70135290092cd7086706fb2
+README.zh.md: 303af9a878909f99e20dec1052b6592da7c8c415
diff --git a/packages/core/session/README.md b/packages/core/session/README.md
index a06b22b5e8..402f353640 100644
--- a/packages/core/session/README.md
+++ b/packages/core/session/README.md
@@ -55,7 +55,7 @@ Append, seed/restore, and event adoption/snapshot reject any `header.system` and
 
 ### Read the log
 
-`session.seq` reads the current log length without materializing an array, and `session.eventAt(seq)` reads one accepted, deeply frozen event by sequence number. `session.snapshotEvents(fromSeq?, toSeqExclusive?)` materializes a frozen, stable snapshot of a half-open range; a complete current snapshot is cached until the next append. Callers that only need a length or one event use `seq` or `eventAt()`.
+`session.seq` reads the current log length without materializing an array, and `session.eventAt(seq)` reads one accepted, deeply frozen event by sequence number. `session.snapshotEvents(fromSeq?, toSeqExclusive?)` materializes a frozen, stable snapshot of a half-open range; a complete current snapshot is cached until the next append. `eventAt()`, `snapshotEvents()`, and `ownEvents()` are deprecated: existing logic may remain unmigrated for now, but new calls are prohibited. Callers that only need a length use `seq`.
 
 Session log positions use two numeric types. `SessionSeq` identifies an existing event or inclusive event watermark; `SessionLogOffset` identifies a gap, prefix length, or read boundary and may equal the event count. `SessionSeqCursor` adds the `-1` “no event yet” value, while `OptionalSessionSeq` uses `null` when absence is data. The constructors validate non-negative safe integers, and the brands disappear at runtime, so durable JSON and wire values remain ordinary numbers.
 
diff --git a/packages/core/session/README.zh.md b/packages/core/session/README.zh.md
index 755894b4c3..303af9a878 100644
--- a/packages/core/session/README.zh.md
+++ b/packages/core/session/README.zh.md
@@ -55,7 +55,7 @@ session.deriveMessages()         // the derived model history
 
 ### 读取日志
 
-`session.seq` 无需物化数组即可读取当前日志长度，`session.eventAt(seq)` 按序列号读取单个已接受且深度冻结的事件。`session.snapshotEvents(fromSeq?, toSeqExclusive?)` 会物化半开区间的冻结稳定快照；当前完整快照会缓存到下一次追加。只需要长度或单个事件的调用方使用 `seq` 或 `eventAt()`。
+`session.seq` 无需物化数组即可读取当前日志长度，`session.eventAt(seq)` 按序列号读取单个已接受且深度冻结的事件。`session.snapshotEvents(fromSeq?, toSeqExclusive?)` 会物化半开区间的冻结稳定快照；当前完整快照会缓存到下一次追加。`eventAt()`、`snapshotEvents()` 和 `ownEvents()` 已弃用：现有逻辑可以暂不迁移，但禁止新增调用。只需要长度的调用方使用 `seq`。
 
 会话日志位置使用两种数字类型。`SessionSeq` 标识已有事件或包含端点的事件水位；`SessionLogOffset` 标识间隙、前缀长度或读取边界，并且可以等于事件数量。`SessionSeqCursor` 添加 `-1` 这个“尚无事件”值，`OptionalSessionSeq` 则在缺失本身属于数据时使用 `null`。构造函数会校验非负安全整数，品牌在运行时会被擦除，因此持久 JSON 与 wire 值仍是普通数字。
 
diff --git a/packages/core/session/src/index.ts b/packages/core/session/src/index.ts
index 9db8327409..68577578dd 100644
--- a/packages/core/session/src/index.ts
+++ b/packages/core/session/src/index.ts
@@ -615,6 +615,7 @@ export class Session {
 
   /**
    * Return the immutable event stored at one exact sequence number.
+   * @deprecated Existing logic may remain unmigrated for now, but new calls are prohibited.
    * @param seq - event sequence number.
    * @returns the accepted event, or undefined when the log does not contain it.
    */
@@ -626,6 +627,7 @@ export class Session {
    * Materialize an immutable snapshot of a half-open event sequence range.
    * A full current snapshot is reused until the next append; every previously
    * returned snapshot remains stable after later appends.
+   * @deprecated Existing logic may remain unmigrated for now, but new calls are prohibited.
    * @param fromSeq - non-negative inclusive sequence number; defaults to the log start.
    * @param toSeqExclusive - non-negative exclusive sequence number; defaults to the current end.
    * @returns a frozen array of the selected deeply frozen events.
@@ -643,6 +645,7 @@ export class Session {
 
   /**
    * Return this Session's events after its fork-inherited prefix.
+   * @deprecated Existing logic may remain unmigrated for now, but new calls are prohibited.
    * @returns a fresh array containing child-owned events in log order.
    */
   ownEvents(): readonly SessionEvent[] {

From aa491acc2939b6bfe87aef70290af4058fa069b2 Mon Sep 17 00:00:00 2001
From: _Kerman <kermanx@qq.com>
Date: Wed, 9 Sep 2026 12:20:38 +0800
Subject: [PATCH 02/32] docs(session): record synchronous history read
 deprecation policy

---
 ...ev-invariants-over-deep-readonly.i18n.yaml |  4 +-
 ...06-11-dev-invariants-over-deep-readonly.md |  4 +-
 ...11-dev-invariants-over-deep-readonly.zh.md |  4 +-
 ...-synchronous-session-event-reads.i18n.yaml |  6 +++
 ...precate-synchronous-session-event-reads.md | 45 +++++++++++++++++++
 ...cate-synchronous-session-event-reads.zh.md | 45 +++++++++++++++++++
 ...2026-07-06-recallable-compaction.i18n.yaml |  4 +-
 .../2026-07-06-recallable-compaction.md       |  4 +-
 .../2026-07-06-recallable-compaction.zh.md    |  4 +-
 packages/core/session/README.i18n.yaml        |  4 +-
 packages/core/session/README.md               |  2 +-
 packages/core/session/README.zh.md            |  2 +-
 12 files changed, 112 insertions(+), 16 deletions(-)
 create mode 100644 .agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.i18n.yaml
 create mode 100644 .agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md
 create mode 100644 .agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.zh.md

diff --git a/.agents/notes/implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.i18n.yaml b/.agents/notes/implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.i18n.yaml
index 5b233e16db..6578c0b2a2 100644
--- a/.agents/notes/implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.i18n.yaml
+++ b/.agents/notes/implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write .agents/notes/implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.md
-2026-06-11-dev-invariants-over-deep-readonly.md: 9adb741db1e26e3a9f750fed60524351159cfeaa
-2026-06-11-dev-invariants-over-deep-readonly.zh.md: d352eca985b6594ec5d10c9b73c2ecc18ea458b5
+2026-06-11-dev-invariants-over-deep-readonly.md: 0784960397f4d198e136e284ef9232b4ed3e2c2c
+2026-06-11-dev-invariants-over-deep-readonly.zh.md: 7183813130560bf82426c8719570b668ba86b7e5
diff --git a/.agents/notes/implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.md b/.agents/notes/implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.md
index 9adb741db1..0784960397 100644
--- a/.agents/notes/implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.md
+++ b/.agents/notes/implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.md
@@ -22,7 +22,7 @@ Responsibility is split between an always-on storage boundary and optional devel
 
 `Session` accepts an event only after one recursive pass has materialized a lossless JSON snapshot. That pass rejects unsupported values and produces the exact detached record that enters the log, so validation and storage cannot observe different values from a stateful getter or retain caller-owned nested references.
 
-The accepted event and all of its descendants are deep-frozen before publication. `append()` returns that owned frozen event, and `session/event` observers and `eventAt(seq)` receive the same record. `snapshotEvents(fromSeq?, toSeqExclusive?)` returns a frozen array snapshot; a previously returned array does not grow after a later append. `seq` and `eventAt()` avoid array materialization when a caller needs only the current length or one event. Seed records pass through the same validation, snapshot, and freeze boundary before construction succeeds.
+The accepted event and all of its descendants are deep-frozen before publication. `append()` returns that owned frozen event, and `session/event` observers and `eventAt(seq)` receive the same record. `snapshotEvents(fromSeq?, toSeqExclusive?)` returns a frozen array snapshot; a previously returned array does not grow after a later append. `seq` reads the current length without materializing an array. Synchronous historical readers are deprecated under the [event-read policy](2026-09-09-deprecate-synchronous-session-event-reads.md). Seed records pass through the same validation, snapshot, and freeze boundary before construction succeeds.
 
 This guarantee belongs in `Session`, not in an optional listener, because every composition relies on trustworthy history. A production deployment, a focused test, or a custom embedding receives the same storage semantics whether or not development support plugins are registered.
 
@@ -53,7 +53,7 @@ Detaching `deriveMessages()` would protect the most common request path but leav
 ## Consequences
 
 - Every accepted live or seeded session event is detached from caller-owned inputs and deeply immutable before any observer can receive it.
-- `snapshotEvents()` exposes stable immutable snapshots instead of the private growing array; `seq` and `eventAt()` serve scalar reads without copying that array.
+- Existing `snapshotEvents()` and `eventAt()` callers retain immutable read results while their migration is deferred; `seq` reads the log length without copying the array.
 - Request-side mutation cannot reach stored history through derived messages.
 - Development builds can enable relational assertions without changing storage behavior, and disposing or filtering a companion does not weaken log immutability.
 - `dsh-invariants` configures global enablement plus package allow/block regex lists; each check remains owned and tested by its product package.
diff --git a/.agents/notes/implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.zh.md b/.agents/notes/implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.zh.md
index d352eca985..7183813130 100644
--- a/.agents/notes/implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.zh.md
+++ b/.agents/notes/implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.zh.md
@@ -22,7 +22,7 @@ TypeScript readonly 类型不是充分的运行时边界。它们在程序运行
 
 `Session` 仅在一次递归遍历完成无损 JSON 快照的物化之后才接受事件。该遍历拒绝不支持的值，并产出进入日志的已分离的确切记录，因此验证与存储不会从有状态的 getter 观察到不同的值，也不会保留调用方拥有的嵌套引用。
 
-被接受的事件及其所有后代在发布前被深度冻结。`append()` 返回由 Session 拥有的冻结事件，`session/event` 观察者和 `eventAt(seq)` 接收同一记录。`snapshotEvents(fromSeq?, toSeqExclusive?)` 返回冻结的数组快照；先前返回的数组不会因后续 append 而增长。调用方只需要当前长度或单个事件时，`seq` 和 `eventAt()` 不会物化数组。种子记录在构造成功前经过相同的验证、快照与冻结边界。
+被接受的事件及其所有后代在发布前被深度冻结。`append()` 返回由 Session 拥有的冻结事件，`session/event` 观察者和 `eventAt(seq)` 接收同一记录。`snapshotEvents(fromSeq?, toSeqExclusive?)` 返回冻结的数组快照；先前返回的数组不会因后续 append 而增长。`seq` 无需物化数组即可读取当前长度。同步历史读取方法按[事件读取策略](2026-09-09-deprecate-synchronous-session-event-reads.zh.md)弃用。种子记录在构造成功前经过相同的验证、快照与冻结边界。
 
 此保证属于 `Session` 而非可选监听器，因为每种组合都依赖可信的历史。无论是否注册了开发支持插件，生产部署、聚焦测试或自定义嵌入都获得相同的存储语义。
 
@@ -53,7 +53,7 @@ TypeScript readonly 类型不是充分的运行时边界。它们在程序运行
 ## 后果
 
 - 每个被接受的实时或种子会话事件在任何观察者接收之前，都已从调用方拥有的输入中分离并深度不可变。
-- `snapshotEvents()` 暴露稳定的不可变快照，而非持续增长的私有数组；`seq` 和 `eventAt()` 为标量读取提供无需复制数组的路径。
+- 现有 `snapshotEvents()` 和 `eventAt()` 调用方在暂缓迁移期间仍获得不可变的读取结果；`seq` 无需复制数组即可读取日志长度。
 - 请求侧的修改无法通过派生消息触及已存储的历史。
 - 开发构建可以启用关系断言而不改变存储行为；dispose 或过滤一个配套插件不会削弱日志不可变性。
 - `dsh-invariants` 配置全局启用状态以及包名允许/阻止 regex 列表；每项检查仍由其产品包拥有并测试。
diff --git a/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.i18n.yaml b/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.i18n.yaml
new file mode 100644
index 0000000000..6af464d03b
--- /dev/null
+++ b/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.i18n.yaml
@@ -0,0 +1,6 @@
+# Bilingual-pair consistency record (docs/i18n/README.md): the git blob hash of each
+# side as of the last confirmed-consistent state. Both languages carry equal authority;
+# after editing either side, bring the other along and re-record with:
+#   pnpm run verify-translation-pairing --write .agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md
+2026-09-09-deprecate-synchronous-session-event-reads.md: b0bc1e81ada1781587b7bd6b5687d62bc0d8e798
+2026-09-09-deprecate-synchronous-session-event-reads.zh.md: 0c8fd24bb48e6a40309fe571fce5d2fba5b99b2b
diff --git a/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md b/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md
new file mode 100644
index 0000000000..b0bc1e81ad
--- /dev/null
+++ b/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md
@@ -0,0 +1,45 @@
+# Agent Note: Deprecate synchronous reads of arbitrary Session events
+
+Status: implemented
+
+English | [中文](2026-09-09-deprecate-synchronous-session-event-reads.zh.md)
+
+## Problem
+
+Synchronous access to arbitrary event positions makes consumers depend on the complete Session event sequence being immediately available in memory. The storage direction is to stop retaining that complete sequence in memory. Once historical events require storage I/O, the runtime cannot preserve the same synchronous read guarantee without retaining the history or blocking on storage.
+
+New callers increase that dependency even when they read only one old event. Repeated history scans after resume also make ordinary domain logic depend on historical storage instead of the state it actually needs.
+
+## Decision
+
+All operations that synchronously read arbitrary positions or ranges of Session event history are deprecated, including `Session.eventAt()`, `Session.snapshotEvents()`, and `Session.ownEvents()`. Existing logic may remain unmigrated for now, but new calls are prohibited. New aliases or wrappers that expose the same synchronous historical access are prohibited as well.
+
+The three methods carry this rule in `@deprecated` JSDoc. This is an API-use decision; the current Session implementation still retains the complete event sequence in memory.
+
+### State needed after resume
+
+Design durable event fields and Session projections together so each domain can reconstruct the state its consumers need. Restore that state during resume, then maintain it incrementally from newly committed events. After resume, ordinary logic reads the projection or processes the delivered current event instead of looking back through historical events. Reading already-maintained projection state synchronously does not require arbitrary access to the event log.
+
+Historical content presented on demand uses explicit asynchronous pagination and progressive loading, with each read limited to the requested window. Loading the complete sequence behind a synchronous helper preserves the dependency this decision removes.
+
+### Operations that require complete history
+
+Fork and a small number of operations may genuinely need a complete historical sequence or inherited prefix. Their need for those records remains valid and requires an explicit storage read. It does not require the whole sequence to remain resident or grant an exception for new calls to deprecated synchronous readers. Each such consumer must establish why its result requires the complete sequence rather than projected state or a limited historical window.
+
+## Alternatives considered
+
+**Keep synchronous single-event reads while deprecating only full snapshots.** A single requested event may also be absent from memory. Restricting the result size does not remove the storage dependency, and helpers such as `ownEvents()` retain the same assumption for a suffix.
+
+**Keep the complete sequence resident to preserve the read APIs.** This lets consumer convenience dictate Session memory retention and prevents the intended storage design. Projections preserve required state, while explicit historical reads preserve access to the records themselves.
+
+**Require every existing caller to migrate immediately.** Existing logic may defer migration under this decision. Preventing new dependencies bounds the remaining work without making every existing consumer part of the same change.
+
+## Consequences
+
+New domain behavior must make its event data and projected state sufficient for resumed execution. User-requested history may still load progressively, and genuine full-history operations still have a storage path to design. This decision does not claim that resume or fork already avoids loading the complete log.
+
+The current `typescript/no-deprecated` lint rule reports both existing and new calls. The JSDoc records the migration deferral, but lint does not yet distinguish permitted existing callers from prohibited additions. The documentation checks verify the source-equivalent API declarations and bilingual records; they do not enforce that distinction.
+
+## Related decisions
+
+The [session immutability decision](2026-06-11-dev-invariants-over-deep-readonly.md) continues to own event ownership and freezing; this decision supersedes its recommendation to use synchronous historical readers. The [required projection reader decision](2026-08-19-session-projection-mandatory-seam.md) continues to own missing-state failures and typed state reads. The [recallable compaction proposal](../../proposed/feature/2026-07-06-recallable-compaction.md) retains its recall design while replacing its proposed synchronous history access with paged reads.
diff --git a/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.zh.md b/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.zh.md
new file mode 100644
index 0000000000..0c8fd24bb4
--- /dev/null
+++ b/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.zh.md
@@ -0,0 +1,45 @@
+# Agent Note: 弃用对会话任意位置事件的同步读取
+
+Status: implemented
+
+[English](2026-09-09-deprecate-synchronous-session-event-reads.md) | 中文
+
+## 问题
+
+同步访问任意事件位置，使消费方依赖完整会话事件序列在内存中随时可用。存储的演进方向是不再将完整序列保存在内存中。历史事件一旦需要存储 I/O，运行时若不继续保留历史或阻塞等待存储，就无法维持相同的同步读取保证。
+
+即使只读取一个旧事件，新增调用也会加深这种依赖。恢复后反复扫描历史，还会使普通领域逻辑依赖历史存储，而不是它真正需要的状态。
+
+## 决策
+
+弃用所有同步读取会话事件历史任意位置或区间的操作，包括 `Session.eventAt()`、`Session.snapshotEvents()` 和 `Session.ownEvents()`。现有逻辑可以暂不迁移，但禁止新增调用。同样禁止新增暴露相同同步历史访问能力的别名或包装层。
+
+这三个方法通过 `@deprecated` JSDoc 声明该规则。这是 API 使用决策；当前 Session 实现仍在内存中保留完整事件序列。
+
+### 恢复后需要的状态
+
+结合设计持久事件字段与会话投影，使每个领域都能重建其消费方所需的状态。在恢复期间还原这些状态，随后通过新提交的事件增量维护。恢复后，普通逻辑读取投影或处理当前收到的事件，而不是回头查找历史事件。同步读取已经维护好的投影状态，不需要任意访问事件日志。
+
+按需展示的历史内容采用显式异步分页和渐进式加载，每次读取限制在请求的窗口内。在同步辅助方法背后加载完整序列，仍保留了本决策要消除的依赖。
+
+### 确实需要完整历史的操作
+
+fork 等少数操作可能确实需要完整历史序列或继承前缀。它们对这些记录的需求仍然成立，需要通过显式存储读取来满足。这不要求完整序列常驻内存，也不构成新增已弃用同步读取调用的例外。每个此类消费方都必须说明，为什么其结果需要完整序列，而不能只使用投影状态或局部历史窗口。
+
+## 曾考虑的替代方案
+
+**只弃用完整快照，保留同步单事件读取。** 单个被请求的事件也可能不在内存中。限制返回结果大小并不能消除存储依赖，`ownEvents()` 等辅助方法对后缀序列也保留着相同假设。
+
+**为保留读取 API 而让完整序列常驻内存。** 这会让消费方的便利性决定会话的内存保留方式，阻碍预期的存储设计。投影保留所需状态，显式历史读取则保留对记录本身的访问能力。
+
+**要求立即迁移所有现有调用方。** 本决策允许现有逻辑推迟迁移。禁止新增依赖可以限制剩余工作规模，无需将每个现有消费方都纳入同一次修改。
+
+## 后果
+
+新增领域行为必须使其事件数据与投影状态足以支持恢复后的执行。用户请求的历史仍可渐进式加载，确实需要完整历史的操作仍需设计存储读取路径。本决策不表示恢复或 fork 已经能够避免加载完整日志。
+
+当前 `typescript/no-deprecated` lint 规则会同时报告已有调用与新增调用。JSDoc 记录了暂缓迁移的约定，但 lint 尚不能区分允许保留的现有调用与禁止新增的调用。文档检查校验与源码一致的 API 声明及双语记录，并不强制执行这种区分。
+
+## 相关决策
+
+[会话不可变性决策](2026-06-11-dev-invariants-over-deep-readonly.zh.md)继续负责事件所有权与冻结；本决策取代其中对同步历史读取方法的使用建议。[投影读取必需性决策](2026-08-19-session-projection-mandatory-seam.zh.md)继续负责缺失状态时的失败规则与类型化状态读取。[可回溯压缩提案](../../proposed/feature/2026-07-06-recallable-compaction.zh.md)保留其回溯设计，并将其中拟议的同步历史访问替换为分页读取。
diff --git a/.agents/notes/proposed/feature/2026-07-06-recallable-compaction.i18n.yaml b/.agents/notes/proposed/feature/2026-07-06-recallable-compaction.i18n.yaml
index fded384582..d324ff433c 100644
--- a/.agents/notes/proposed/feature/2026-07-06-recallable-compaction.i18n.yaml
+++ b/.agents/notes/proposed/feature/2026-07-06-recallable-compaction.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write .agents/notes/proposed/feature/2026-07-06-recallable-compaction.md
-2026-07-06-recallable-compaction.md: f0cf1b0602ad7dd5ae719fdd1e3b569b0bf5b448
-2026-07-06-recallable-compaction.zh.md: 8e8793f28be848e6231e86a3eaba099e68d9947e
+2026-07-06-recallable-compaction.md: 07b89116b72a1c1aac2d79ee5aa41ff6e5d02a4c
+2026-07-06-recallable-compaction.zh.md: 7347cb08c94665a6e5bb88655ec08d04921d08eb
diff --git a/.agents/notes/proposed/feature/2026-07-06-recallable-compaction.md b/.agents/notes/proposed/feature/2026-07-06-recallable-compaction.md
index f0cf1b0602..07b89116b7 100644
--- a/.agents/notes/proposed/feature/2026-07-06-recallable-compaction.md
+++ b/.agents/notes/proposed/feature/2026-07-06-recallable-compaction.md
@@ -46,7 +46,7 @@ A new package `@deepseek-ai/dsh-tool-recall` (consumer-only, over the `dsh-sessi
 - `history_read(checkpoint, offset?)` — renders the shadowed span of any checkpoint in the log, including superseded ones, as `User:`/`Assistant:`/`Tool result:` transcript, paginated by a configured budget with a continuation cursor.
 - `history_search(query, checkpoint?, limit?)` — case-insensitive literal scan over every shadowed span; returns snippets with checkpoint ids and coverage metadata (`scanned`/`matched`/`truncated`). The zero-match hint notes the scan is literal and points at direct `history_read` of a plausible checkpoint.
 
-Both read `exec.agent.session.snapshotEvents()` (the tool-todo access pattern; non-agent callers rejected), render only surface-type message events, and return ordinary `tool/result`s — recalled bytes land at the context tail, logged, so reconstructability holds with no special casing. There is no new storage and no sidecar index: the session log stores the content, `compaction/summary.shadowedRange` and `shadowedSeqs` identify what each checkpoint replaced, and the tools read both. The tool schemas and the package's one system-prompt section are static strings; checkpoint ids reach the model only through footers. The transcript renderer moves from `compaction-basic` into `dsh-session`, shared by summarizer and tools.
+Both use explicit asynchronous, paged history reads under the [synchronous event-read deprecation](../../implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md) (non-agent callers rejected), render only surface-type message events, and return ordinary `tool/result`s — recalled bytes land at the context tail, logged, so reconstructability holds with no special casing. There is no new storage and no sidecar index: the session log stores the content, `compaction/summary.shadowedRange` and `shadowedSeqs` identify what each checkpoint replaced, and the tools read both. The tool schemas and the package's one system-prompt section are static strings; checkpoint ids reach the model only through footers. The transcript renderer moves from `compaction-basic` into `dsh-session`, shared by summarizer and tools.
 
 ### Cache and cost
 
@@ -86,7 +86,7 @@ Deferred until observation calls for them:
 - **One summarize call emitting all outputs** — rejected: the summarize path has no structured-output enforcement; parsing one free-text response apart is the fragile boundary the fail-closed design avoids.
 - **Model-chosen chunk boundaries** — deferred: parse-and-validate cost against unproven value; chunk policy sits behind config.
 - **Model-authored pointers** — rejected: pointers must be exact; deterministic assembly is.
-- **FTS/vector index sidecar** — rejected in-session: the live log is in memory and bounded, a literal scan under budget suffices; an index earns its keep at cross-session scope.
+- **FTS/vector index sidecar** — the rejection based on a resident, bounded live log is superseded by the [event-read policy](../../implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md). Reassess the index choice against paged historical reads before implementing recall.
 - **Semantic search fallback / secondary-model extraction in the recall path** — rejected: an LLM or embedding call there breaks keyless replay determinism; recall stays a pure function of the log.
 - **Raw events instead of rendered transcript** — rejected: leaks log-only vocabulary and chunk noise; the model reads what a model once saw.
 - **Doing nothing (resume/fork as recovery)** — rejected: it makes recovery a human act.
diff --git a/.agents/notes/proposed/feature/2026-07-06-recallable-compaction.zh.md b/.agents/notes/proposed/feature/2026-07-06-recallable-compaction.zh.md
index 8e8793f28b..7347cb08c9 100644
--- a/.agents/notes/proposed/feature/2026-07-06-recallable-compaction.zh.md
+++ b/.agents/notes/proposed/feature/2026-07-06-recallable-compaction.zh.md
@@ -46,7 +46,7 @@ Status: proposed
 - `history_read(checkpoint, offset?)`：把日志中任意检查点（包括已被取代的检查点）遮蔽的区段渲染为 `User:`／`Assistant:`／`Tool result:` transcript（文本记录），并按配置预算分页，提供续传游标。
 - `history_search(query, checkpoint?, limit?)`：对每个被遮蔽区段进行不区分大小写的字面量扫描；返回带检查点 id 的片段与覆盖元数据（`scanned`／`matched`／`truncated`）。零匹配提示会说明扫描按字面量执行，并建议对可能的检查点直接使用 `history_read`。
 
-两个工具都读取 `exec.agent.session.snapshotEvents()`（沿用 tool-todo 访问模式；拒绝非 agent（智能体）调用方），只渲染表面类型的消息事件，并返回普通 `tool/result`：回溯字节会进入上下文尾部并记录到日志，因此无需特殊处理即可满足可重建性。系统不增加新存储或伴随索引：会话日志存储内容，`compaction/summary.shadowedRange` 和 `shadowedSeqs` 指明每个检查点替换了什么，这些工具读取两者。工具 schema 与该包唯一的系统提示词章节都是静态字符串；检查点 id 只会通过页脚抵达模型。transcript 渲染器从 `compaction-basic` 移入 `dsh-session`，供摘要器与工具共享。
+两个工具都按[同步事件读取弃用规则](../../implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.zh.md)使用显式异步分页历史读取（拒绝非 agent（智能体）调用方），只渲染表面类型的消息事件，并返回普通 `tool/result`：回溯字节会进入上下文尾部并记录到日志，因此无需特殊处理即可满足可重建性。系统不增加新存储或伴随索引：会话日志存储内容，`compaction/summary.shadowedRange` 和 `shadowedSeqs` 指明每个检查点替换了什么，这些工具读取两者。工具 schema 与该包唯一的系统提示词章节都是静态字符串；检查点 id 只会通过页脚抵达模型。transcript 渲染器从 `compaction-basic` 移入 `dsh-session`，供摘要器与工具共享。
 
 ### 缓存与成本
 
@@ -86,7 +86,7 @@ Status: proposed
 - **一次摘要调用输出全部结果**：不予采纳，因为摘要路径没有结构化输出约束；解析一份自由文本响应并将其拆开，正是保守失败设计要避免的脆弱边界。
 - **由模型选择分片边界**：延后实现，因为相对于未经证明的收益，解析与校验成本过高；分片策略由配置控制。
 - **由模型编写指针**：不予采纳，因为指针必须精确，应由确定性代码组装。
-- **FTS／向量索引伴随存储**：在会话内不予采纳，因为实时日志已在内存中且大小有界，在预算内进行字面量扫描已经足够；只有跨会话范围才能证明索引的价值。
+- **FTS／向量索引伴随存储**：以实时日志常驻内存且大小有界为依据的否决，被[事件读取策略](../../implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.zh.md)取代。实现回溯前，需要针对分页历史读取重新评估索引选择。
 - **回溯路径中的语义搜索回退／次级模型提取**：不予采纳，因为其中的 LLM 或嵌入调用会破坏无密钥回放的确定性；回溯必须保持为日志的纯函数。
 - **使用原始事件而不是渲染后的 transcript**：不予采纳，因为这会泄漏仅日志可见的词汇与分片噪声；模型应读取模型曾经看到的内容。
 - **什么都不做（用恢复／fork 补救）**：不予采纳，因为这会把恢复变成人工操作。
diff --git a/packages/core/session/README.i18n.yaml b/packages/core/session/README.i18n.yaml
index ed9b39bdff..773d428da8 100644
--- a/packages/core/session/README.i18n.yaml
+++ b/packages/core/session/README.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write packages/core/session/README.md
-README.md: 402f3536402d78d0a70135290092cd7086706fb2
-README.zh.md: 303af9a878909f99e20dec1052b6592da7c8c415
+README.md: ebe4c1c29992b29b07ad38d7368ca5cef2253ee0
+README.zh.md: f5d0ac59f1276e4fe59c1cc449dcf6ce5a082aba
diff --git a/packages/core/session/README.md b/packages/core/session/README.md
index 402f353640..ebe4c1c299 100644
--- a/packages/core/session/README.md
+++ b/packages/core/session/README.md
@@ -55,7 +55,7 @@ Append, seed/restore, and event adoption/snapshot reject any `header.system` and
 
 ### Read the log
 
-`session.seq` reads the current log length without materializing an array, and `session.eventAt(seq)` reads one accepted, deeply frozen event by sequence number. `session.snapshotEvents(fromSeq?, toSeqExclusive?)` materializes a frozen, stable snapshot of a half-open range; a complete current snapshot is cached until the next append. `eventAt()`, `snapshotEvents()`, and `ownEvents()` are deprecated: existing logic may remain unmigrated for now, but new calls are prohibited. Callers that only need a length use `seq`.
+`session.seq` reads the current log length without materializing an array, and `session.eventAt(seq)` reads one accepted, deeply frozen event by sequence number. `session.snapshotEvents(fromSeq?, toSeqExclusive?)` materializes a frozen, stable snapshot of a half-open range; a complete current snapshot is cached until the next append. `eventAt()`, `snapshotEvents()`, and `ownEvents()` are deprecated: existing logic may remain unmigrated for now, but new calls are prohibited ([rationale](../../../.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md)). Callers that only need a length use `seq`.
 
 Session log positions use two numeric types. `SessionSeq` identifies an existing event or inclusive event watermark; `SessionLogOffset` identifies a gap, prefix length, or read boundary and may equal the event count. `SessionSeqCursor` adds the `-1` “no event yet” value, while `OptionalSessionSeq` uses `null` when absence is data. The constructors validate non-negative safe integers, and the brands disappear at runtime, so durable JSON and wire values remain ordinary numbers.
 
diff --git a/packages/core/session/README.zh.md b/packages/core/session/README.zh.md
index 303af9a878..f5d0ac59f1 100644
--- a/packages/core/session/README.zh.md
+++ b/packages/core/session/README.zh.md
@@ -55,7 +55,7 @@ session.deriveMessages()         // the derived model history
 
 ### 读取日志
 
-`session.seq` 无需物化数组即可读取当前日志长度，`session.eventAt(seq)` 按序列号读取单个已接受且深度冻结的事件。`session.snapshotEvents(fromSeq?, toSeqExclusive?)` 会物化半开区间的冻结稳定快照；当前完整快照会缓存到下一次追加。`eventAt()`、`snapshotEvents()` 和 `ownEvents()` 已弃用：现有逻辑可以暂不迁移，但禁止新增调用。只需要长度的调用方使用 `seq`。
+`session.seq` 无需物化数组即可读取当前日志长度，`session.eventAt(seq)` 按序列号读取单个已接受且深度冻结的事件。`session.snapshotEvents(fromSeq?, toSeqExclusive?)` 会物化半开区间的冻结稳定快照；当前完整快照会缓存到下一次追加。`eventAt()`、`snapshotEvents()` 和 `ownEvents()` 已弃用：现有逻辑可以暂不迁移，但禁止新增调用（[理由](../../../.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.zh.md)）。只需要长度的调用方使用 `seq`。
 
 会话日志位置使用两种数字类型。`SessionSeq` 标识已有事件或包含端点的事件水位；`SessionLogOffset` 标识间隙、前缀长度或读取边界，并且可以等于事件数量。`SessionSeqCursor` 添加 `-1` 这个“尚无事件”值，`OptionalSessionSeq` 则在缺失本身属于数据时使用 `null`。构造函数会校验非负安全整数，品牌在运行时会被擦除，因此持久 JSON 与 wire 值仍是普通数字。
 

From 37abcb74c588b57d373a6594faa268a0c40ccb26 Mon Sep 17 00:00:00 2001
From: _Kerman <kermanx@qq.com>
Date: Wed, 9 Sep 2026 12:33:53 +0800
Subject: [PATCH 03/32] chore(session): permit existing deprecated history
 reads

---
 ...-synchronous-session-event-reads.i18n.yaml |  4 +-
 ...precate-synchronous-session-event-reads.md |  4 +-
 ...cate-synchronous-session-event-reads.zh.md |  4 +-
 .../headless/tests/coding-task.e2e.ts         |  1 +
 .../profiles/headless/tests/compaction.e2e.ts |  1 +
 .../profiles/headless/tests/full-loop.e2e.ts  |  1 +
 .../tests/profiles/headless/tests/ptc.e2e.ts  |  3 +
 .../profiles/headless/tests/resume.e2e.ts     |  1 +
 .../profiles/headless/tests/todo-write.e2e.ts |  1 +
 .../tests/chat-continuous-conversation.e2e.ts |  1 +
 apps/web/tests/chat-long-interactions.e2e.ts  | 11 +++
 apps/web/tests/chat-scroll-fixture.ts         |  1 +
 apps/web/tests/clickable-links-gallery.e2e.ts |  1 +
 apps/web/tests/complex-history.perf.ts        |  1 +
 apps/web/tests/feedback-release.e2e.ts        |  1 +
 .../tests/goal-command-presentation.e2e.ts    |  1 +
 apps/web/tests/markdown-cjk-strong.e2e.ts     |  1 +
 apps/web/tests/markdown-images.e2e.ts         |  1 +
 .../tests/markdown-inline-code-links.e2e.ts   |  1 +
 apps/web/tests/markdown-wide-table.e2e.ts     |  1 +
 apps/web/tests/math-rendering.e2e.ts          |  1 +
 apps/web/tests/minimal-preset.snapshot.ts     |  1 +
 apps/web/tests/preset-migration.snapshot.ts   |  1 +
 apps/web/tests/produced-file-mentions.e2e.ts  |  1 +
 apps/web/tests/produced-files.e2e.ts          |  1 +
 apps/web/tests/reference-composer.e2e.ts      |  2 +
 apps/web/tests/scaffold.ts                    |  2 +
 apps/web/tests/schedule-after.e2e.ts          |  8 +++
 apps/web/tests/seeded-history.e2e.ts          |  1 +
 apps/web/tests/settings-chrome.e2e.ts         |  4 ++
 apps/web/tests/subagent-interrupt-ui.e2e.ts   |  1 +
 apps/web/tests/subagent-interrupt.e2e.ts      |  2 +
 docs/config-catalog.i18n.yaml                 |  4 +-
 docs/config-catalog.md                        |  2 +-
 docs/config-catalog.zh.md                     |  2 +-
 packages/acp/acp/tests/bridge.spec.ts         |  2 +
 packages/acp/acp/tests/turns.spec.ts          |  5 ++
 .../api/session-controller/src/commands.ts    |  2 +
 .../api/session-controller/src/history.ts     |  1 +
 packages/api/session-controller/src/index.ts  |  1 +
 .../commands-queue-attachment.host.spec.ts    |  1 +
 .../tests/session-cold.host.spec.ts           |  3 +
 .../tests/session-fork.host.spec.ts           |  6 ++
 .../tests/session-projections.host.spec.ts    |  3 +
 .../tests/session-rename.host.spec.ts         |  1 +
 .../tests/transport.host.spec.ts              |  1 +
 packages/bundle/headless/src/index.ts         |  1 +
 .../spill-policy-terminal.client.spec.ts      |  1 +
 .../tests/command-compact.spec.ts             |  1 +
 .../tests/loader-composition.spec.ts          |  1 +
 .../compaction/compaction-basic/src/region.ts |  9 ++-
 .../tests/compaction-basic.spec.ts            | 29 ++++++++
 .../tests/compaction-loop-repro.spec.ts       | 12 ++++
 .../tests/manual-compaction.spec.ts           | 29 ++++++++
 .../src/index.ts                              |  1 +
 .../tests/tool-result-pruner.spec.ts          |  4 ++
 .../compaction/compaction/src/invariant.ts    |  1 +
 .../compaction/compaction/src/tool-pairing.ts |  1 +
 .../compaction/tests/compaction.spec.ts       |  3 +
 .../compaction/tests/invariant.spec.ts        |  8 +++
 .../compaction/tests/tool-pairing.spec.ts     |  1 +
 .../context/agent-instructions/src/index.ts   |  2 +
 .../context/agent-instructions/src/state.ts   |  1 +
 .../tests/agent-instructions.e2e.ts           |  3 +
 .../tests/agent-instructions.spec.ts          | 34 +++++++++
 .../tests/loader-composition.spec.ts          |  1 +
 .../tests/session-reference.spec.ts           |  4 ++
 packages/context/time-context/src/index.ts    |  1 +
 .../context/time-context/src/invariant.ts     |  2 +
 .../time-context/tests/time-context.spec.ts   | 13 ++++
 .../tmux-context/tests/tmux-context.spec.ts   |  2 +
 packages/core/agent-loop/src/index.ts         |  1 +
 packages/core/agent-loop/src/invariant.ts     |  1 +
 .../core/agent-loop/src/runtime-context.ts    |  2 +
 .../agent-loop/tests/agent-initiator.spec.ts  |  1 +
 packages/core/agent-loop/tests/agent.spec.ts  |  4 ++
 packages/core/agent-loop/tests/cancel.spec.ts | 42 +++++++++++
 .../tests/contract-regressions.spec.ts        | 40 +++++++++++
 .../agent-loop/tests/coverage-edges.spec.ts   | 18 +++++
 packages/core/agent-loop/tests/inbox.spec.ts  |  4 ++
 .../agent-loop/tests/interception.spec.ts     |  1 +
 packages/core/agent-loop/tests/loop.spec.ts   | 69 +++++++++++++++++++
 .../core/agent-loop/tests/properties.spec.ts  |  4 ++
 .../agent-loop/tests/request-cache.e2e.ts     |  1 +
 .../agent-loop/tests/request-error.spec.ts    |  6 ++
 .../agent-loop/tests/request-freeze.spec.ts   |  3 +
 .../tests/request-reconstruction.spec.ts      | 41 +++++++++++
 packages/core/agent-loop/tests/resume.spec.ts |  9 +++
 .../agent-loop/tests/scope-lifecycle.spec.ts  |  3 +
 .../tests/system-prompt-admission.spec.ts     | 20 ++++++
 .../core/agent-loop/tests/tool-calls.spec.ts  |  1 +
 .../core/agent-loop/tests/tool-order.spec.ts  |  8 +++
 .../core/agent/tests/consumed-work.spec.ts    | 13 ++++
 packages/core/session/src/index.ts            |  4 ++
 packages/core/session/src/invariant.ts        |  1 +
 .../session/tests/canonical-envelopes.spec.ts |  5 ++
 .../core/session/tests/derived-cache.spec.ts  |  1 +
 packages/core/session/tests/fork.spec.ts      | 13 ++++
 packages/core/session/tests/invariant.spec.ts |  2 +
 .../core/session/tests/properties.spec.ts     |  8 +++
 .../core/session/tests/request-header.spec.ts |  1 +
 .../core/session/tests/sequence-types.spec.ts |  4 ++
 packages/core/session/tests/session.spec.ts   | 53 ++++++++++++++
 packages/core/session/tests/surface.spec.ts   | 20 ++++++
 packages/core/tools/src/invariant.ts          |  1 +
 packages/core/tools/tests/invariant.spec.ts   |  1 +
 packages/core/tools/tests/ptc.spec.ts         |  1 +
 .../experimental/agent-team/src/mailbox.ts    |  1 +
 .../experimental/agent-team/src/roster.ts     |  2 +
 .../agent-team/tests/invariant.spec.ts        |  2 +
 .../agent-team/tests/persistence.spec.ts      |  3 +
 .../agent-team/tests/team.spec.ts             |  7 ++
 .../agent-team/tests/test-session-query.ts    |  1 +
 .../tool-agent-team/tests/tool-team.spec.ts   |  1 +
 .../tests/command-feedback.spec.ts            | 10 +++
 .../tests/loader-composition.spec.ts          |  4 ++
 .../feedback/message-feedback/src/index.ts    |  2 +
 .../message-feedback/tests/helpers.ts         |  1 +
 .../tests/message-feedback.spec.ts            |  9 +++
 packages/fs/tool-fs/tests/fs-tools.e2e.ts     |  1 +
 .../fs/tool-present/tests/present.spec.ts     |  5 ++
 .../command-goal/tests/command-goal.spec.ts   |  4 ++
 .../goal/goal-round-driver/src/invariant.ts   |  2 +
 .../tests/goal-round-driver.spec.ts           | 10 +++
 packages/goal/goal/src/invariant.ts           |  1 +
 packages/goal/goal/tests/goal.spec.ts         | 28 ++++++++
 packages/goal/goal/tests/projection.spec.ts   |  1 +
 packages/goal/tool-goal/src/authority.ts      |  1 +
 .../goal/tool-goal/tests/tool-goal.spec.ts    |  2 +
 .../tests/repeat-tool-reminder.spec.ts        |  3 +
 packages/hooks/hook-protocol/src/invariant.ts |  1 +
 .../hooks/hook-protocol/tests/events.spec.ts  |  9 +++
 .../hooks-claude-code/tests/bridge.spec.ts    |  1 +
 .../hooks-claude-code/tests/coverage-cases.ts |  1 +
 .../hooks/hooks-codex/tests/bridge.spec.ts    |  1 +
 .../hooks/hooks-codex/tests/coverage-cases.ts |  1 +
 .../interaction/commands/src/invariant.ts     |  2 +
 .../commands/tests/commands.spec.ts           |  5 ++
 .../permission-presets/src/invariant.ts       |  1 +
 .../tests/permission-presets.spec.ts          | 18 +++++
 .../tests/projection.spec.ts                  |  4 ++
 .../interaction/user-approval/src/index.ts    |  2 +
 .../user-approval/src/invariant.ts            |  1 +
 .../user-approval/tests/approval.spec.ts      |  9 +++
 packages/llm/llm-retry/src/invariant.ts       |  3 +
 .../tests/loader-composition.spec.ts          |  1 +
 packages/llm/llm-retry/tests/retry.spec.ts    | 25 +++++++
 .../tests/transport-recovery.spec.ts          | 17 +++++
 packages/llm/token-meter/src/index.ts         |  3 +-
 .../context-breakdown-projection.spec.ts      |  6 ++
 .../llm/token-meter/tests/token-meter.spec.ts |  6 ++
 packages/plan/plan-mode/src/invariant.ts      |  1 +
 .../plan/plan-mode/tests/integration.spec.ts  |  6 ++
 .../plan/plan-mode/tests/plan-mode.spec.ts    | 39 +++++++++++
 .../plan/plan-mode/tests/projection.spec.ts   |  1 +
 .../preset/agent-presets/tests/remote.spec.ts |  1 +
 .../sandbox/sandbox-policy/src/invariant.ts   |  1 +
 .../sandbox-policy/tests/policy.spec.ts       |  2 +
 packages/schedule/schedule/src/index.ts       |  1 +
 packages/schedule/schedule/src/invariant.ts   |  3 +
 packages/schedule/schedule/src/runtime.ts     |  1 +
 packages/schedule/schedule/src/tools.ts       |  1 +
 .../schedule/schedule/tests/invariant.spec.ts |  5 ++
 .../schedule/tests/jsonl-restart.spec.ts      |  2 +
 .../schedule/schedule/tests/runtime.spec.ts   | 11 +++
 .../schedule/schedule/tests/tools.spec.ts     |  9 +++
 .../tests/loader-composition.host.spec.ts     |  1 +
 .../session-query-sqlite/src/index.ts         |  1 +
 .../session-query/session-query/src/corpus.ts |  2 +
 .../session-query/src/observation.ts          |  1 +
 .../session-query/tests/session-query.spec.ts |  2 +
 .../tests/tool-session-query.spec.ts          |  1 +
 .../session/session-log-deepseek/src/index.ts |  3 +
 .../session-log-deepseek/src/invariant.ts     |  1 +
 .../tests/feedback-composition.spec.ts        |  2 +
 .../session-log-deepseek/tests/upload.spec.ts |  4 ++
 .../tests/multi-edge-publication.spec.ts      |  1 +
 .../tests/v2-system-migration.spec.ts         |  6 ++
 .../session/session-projection/src/index.ts   |  3 +
 .../session-telemetry-otel/src/index.ts       |  1 +
 .../session-telemetry-otel/tests/otel.spec.ts | 15 ++++
 .../session-telemetry/src/coordinator.ts      |  1 +
 .../session-telemetry/tests/redact.spec.ts    |  2 +
 .../session-telemetry/tests/telemetry.spec.ts |  8 +++
 .../tests/provider.spec.ts                    |  1 +
 .../session-title-llm/tests/llm.spec.ts       |  4 ++
 packages/session/session-title/src/index.ts   |  2 +
 .../session/session-title/src/invariant.ts    |  2 +
 .../session-title/tests/projection.spec.ts    |  1 +
 .../session-title/tests/provider.spec.ts      |  3 +
 .../session-title/tests/rename.spec.ts        |  3 +
 .../tests/service-contracts.spec.ts           |  6 ++
 .../session-title/tests/session-title.spec.ts |  5 ++
 .../shell/tool-bash/tests/integration.spec.ts |  1 +
 packages/shell/tool-bash/tests/tools.spec.ts  |  1 +
 packages/skill/tool-skill/src/index.ts        |  1 +
 .../skill/tool-skill/tests/tool-skill.spec.ts |  1 +
 .../subagent-fork-in-process/src/index.ts     |  1 +
 .../tests/multi-subagent.spec.ts              |  4 ++
 .../tests/subagent-fork-in-process.spec.ts    |  8 +++
 .../subagent-in-process-driver/src/index.ts   |  1 +
 .../tests/inheritance.spec.ts                 | 13 ++++
 .../tests/preset-inheritance.spec.ts          |  1 +
 .../tests/structured.spec.ts                  |  6 ++
 .../tests/subagent-in-process-driver.spec.ts  |  8 +++
 .../tests/spawn-in-process.e2e.ts             |  1 +
 .../tests/subagent-spawn-in-process.spec.ts   |  3 +
 packages/subagent/subagent/src/lifecycle.ts   |  1 +
 .../subagent/tests/continuation.spec.ts       | 12 ++++
 packages/subagent/tool-subagent/src/index.ts  |  1 +
 .../tests/model-selection-settings.spec.ts    |  2 +
 .../terminal-bash/tests/index.spec.ts         |  2 +
 .../tests/agent-loop-testkit.spec.ts          |  1 +
 .../fixtures/workspace-context-compaction.ts  |  2 +
 packages/todo/tool-todo/src/invariant.ts      |  1 +
 .../todo/tool-todo/tests/integration.spec.ts  |  3 +
 .../todo/tool-todo/tests/invariant.spec.ts    |  2 +
 .../tests/loader-composition.spec.ts          |  2 +
 .../todo/tool-todo/tests/tool-todo.spec.ts    | 10 +++
 .../workflow/tool-workflow/src/invariant.ts   |  1 +
 .../tool-workflow/tests/tool-workflow.spec.ts |  7 ++
 scripts/oxlint-contract.spec.ts               | 53 ++++++++++++++
 .../python-snapshot-workflow-order.spec.ts    |  1 +
 223 files changed, 1195 insertions(+), 12 deletions(-)

diff --git a/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.i18n.yaml b/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.i18n.yaml
index 6af464d03b..51e978ca70 100644
--- a/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.i18n.yaml
+++ b/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write .agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md
-2026-09-09-deprecate-synchronous-session-event-reads.md: b0bc1e81ada1781587b7bd6b5687d62bc0d8e798
-2026-09-09-deprecate-synchronous-session-event-reads.zh.md: 0c8fd24bb48e6a40309fe571fce5d2fba5b99b2b
+2026-09-09-deprecate-synchronous-session-event-reads.md: 0fcbfbc2e21792f67d1bdbe6d32ac3106338ac45
+2026-09-09-deprecate-synchronous-session-event-reads.zh.md: d1f22b483380a7a38a5cd1208815c5fc0ae25348
diff --git a/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md b/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md
index b0bc1e81ad..0fcbfbc2e2 100644
--- a/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md
+++ b/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md
@@ -34,11 +34,13 @@ Fork and a small number of operations may genuinely need a complete historical s
 
 **Require every existing caller to migrate immediately.** Existing logic may defer migration under this decision. Preventing new dependencies bounds the remaining work without making every existing consumer part of the same change.
 
+**Disable deprecation lint for these methods or whole files.** Such exemptions also admit new calls. Line-scoped waivers make the existing migration debt explicit while retaining the native type-aware rule for new reads.
+
 ## Consequences
 
 New domain behavior must make its event data and projected state sufficient for resumed execution. User-requested history may still load progressively, and genuine full-history operations still have a storage path to design. This decision does not claim that resume or fork already avoids loading the complete log.
 
-The current `typescript/no-deprecated` lint rule reports both existing and new calls. The JSDoc records the migration deferral, but lint does not yet distinguish permitted existing callers from prohibited additions. The documentation checks verify the source-equivalent API declarations and bilingual records; they do not enforce that distinction.
+Existing calls carry line-scoped `typescript/no-deprecated` waivers with a migration-deferral reason. The rule stays enabled for new calls and unrelated deprecated APIs. Remove a waiver when its call migrates; copying a waiver to a new call violates this policy. The executable lint check exercises all three readers with and without waivers, plus an unrelated deprecated API. Documentation checks verify the source-equivalent API declarations and bilingual records.
 
 ## Related decisions
 
diff --git a/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.zh.md b/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.zh.md
index 0c8fd24bb4..d1f22b4833 100644
--- a/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.zh.md
+++ b/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.zh.md
@@ -34,11 +34,13 @@ fork 等少数操作可能确实需要完整历史序列或继承前缀。它们
 
 **要求立即迁移所有现有调用方。** 本决策允许现有逻辑推迟迁移。禁止新增依赖可以限制剩余工作规模，无需将每个现有消费方都纳入同一次修改。
 
+**为这些方法或整个文件禁用弃用 lint。** 这种豁免也会放过新增调用。逐行豁免明确标出已有的迁移负担，同时继续由原生类型感知规则检查新增读取。
+
 ## 后果
 
 新增领域行为必须使其事件数据与投影状态足以支持恢复后的执行。用户请求的历史仍可渐进式加载，确实需要完整历史的操作仍需设计存储读取路径。本决策不表示恢复或 fork 已经能够避免加载完整日志。
 
-当前 `typescript/no-deprecated` lint 规则会同时报告已有调用与新增调用。JSDoc 记录了暂缓迁移的约定，但 lint 尚不能区分允许保留的现有调用与禁止新增的调用。文档检查校验与源码一致的 API 声明及双语记录，并不强制执行这种区分。
+现有调用带有逐行的 `typescript/no-deprecated` 豁免，并说明暂缓迁移的理由。该规则对新增调用及其他已弃用 API 继续生效。调用迁移后应删除豁免；将豁免复制到新增调用违反本策略。实际执行 lint 的检查覆盖三个读取方法有无豁免的情况，以及另一个已弃用 API。文档检查校验与源码一致的 API 声明及双语记录。
 
 ## 相关决策
 
diff --git a/apps/cli/tests/profiles/headless/tests/coding-task.e2e.ts b/apps/cli/tests/profiles/headless/tests/coding-task.e2e.ts
index bb0b4297b8..4b78389bb3 100644
--- a/apps/cli/tests/profiles/headless/tests/coding-task.e2e.ts
+++ b/apps/cli/tests/profiles/headless/tests/coding-task.e2e.ts
@@ -67,6 +67,7 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('coding task: fix a failing test
     await waitForIdle(ctx, agent)
 
     // The agent claims success…
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const summary = finalText(agent.session.snapshotEvents()).toLowerCase()
     expect(summary.length).toBeGreaterThan(0)
 
diff --git a/apps/cli/tests/profiles/headless/tests/compaction.e2e.ts b/apps/cli/tests/profiles/headless/tests/compaction.e2e.ts
index 6e3f46c266..263b794778 100644
--- a/apps/cli/tests/profiles/headless/tests/compaction.e2e.ts
+++ b/apps/cli/tests/profiles/headless/tests/compaction.e2e.ts
@@ -56,6 +56,7 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('compaction: a long session compa
       }], source: { kind: 'user' } }))
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = agent.session.snapshotEvents()
 
     // A compaction ran: the start…end bracket landed in the real log.
diff --git a/apps/cli/tests/profiles/headless/tests/full-loop.e2e.ts b/apps/cli/tests/profiles/headless/tests/full-loop.e2e.ts
index 6816c60f61..74db5cc44a 100644
--- a/apps/cli/tests/profiles/headless/tests/full-loop.e2e.ts
+++ b/apps/cli/tests/profiles/headless/tests/full-loop.e2e.ts
@@ -34,6 +34,7 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('full loop: real model + real bas
     agent.followup(createUserMessage({ content: [{ type: 'text', text: 'Run `echo e2e-ok` with the bash tool and tell me its exact output.' }], source: { kind: 'user' } }))
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = agent.session.snapshotEvents()
     const calls = events.filter(event => event.type === 'tool/call')
     expect(calls.length).toBeGreaterThan(0)
diff --git a/apps/cli/tests/profiles/headless/tests/ptc.e2e.ts b/apps/cli/tests/profiles/headless/tests/ptc.e2e.ts
index c666871584..557b632132 100644
--- a/apps/cli/tests/profiles/headless/tests/ptc.e2e.ts
+++ b/apps/cli/tests/profiles/headless/tests/ptc.e2e.ts
@@ -366,6 +366,7 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('PTC mode: real model writes a pr
         + 'and return only the joined string.',
       }], source: { kind: 'user' } }))
     await waitForIdle(ctx, agent)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events: readonly SessionEvent[] = agent.session.snapshotEvents()
 
     // The wire contract: every request this session made offered EXACTLY ONE
@@ -418,10 +419,12 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('PTC mode: real model writes a pr
       }], source: { kind: 'user' } }))
     await waitForIdle(ctx, handle.agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events: readonly SessionEvent[] = handle.agent.session.snapshotEvents()
     const dispatch = events.find(event => event.type === 'tool/ptc-dispatch' && event.data.name === 'read')
     const outerResult = events.find(event => event.type === 'tool/result')
     const workspaceContext = await vi.waitFor(() => {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const splice = handle.agent.session.snapshotEvents().findLast(event => event.type === 'agent/inbox/spliced'
         && event.data.inserted.some(message => message.source.kind === 'agent-instructions'))
       const inserted = splice?.type === 'agent/inbox/spliced'
diff --git a/apps/cli/tests/profiles/headless/tests/resume.e2e.ts b/apps/cli/tests/profiles/headless/tests/resume.e2e.ts
index 579b082906..ce8c0bd91d 100644
--- a/apps/cli/tests/profiles/headless/tests/resume.e2e.ts
+++ b/apps/cli/tests/profiles/headless/tests/resume.e2e.ts
@@ -63,6 +63,7 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('resume: continue a persisted ses
     await waitForIdle(ctx, resumed)
 
     // The model recalls it — only possible from the resumed history.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(finalText(resumed.session.snapshotEvents())).toContain(SECRET)
   }, 180_000)
 })
diff --git a/apps/cli/tests/profiles/headless/tests/todo-write.e2e.ts b/apps/cli/tests/profiles/headless/tests/todo-write.e2e.ts
index 4ff5fef99c..7a201279f8 100644
--- a/apps/cli/tests/profiles/headless/tests/todo-write.e2e.ts
+++ b/apps/cli/tests/profiles/headless/tests/todo-write.e2e.ts
@@ -37,6 +37,7 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('todo_write: real model records a
       + 'Send all three in one todo_write call, then reply with the single word DONE.' }], source: { kind: 'user' } }))
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = agent.session.snapshotEvents()
 
     // The model actually called the tool.
diff --git a/apps/web/tests/chat-continuous-conversation.e2e.ts b/apps/web/tests/chat-continuous-conversation.e2e.ts
index c539a96601..062f5bceac 100644
--- a/apps/web/tests/chat-continuous-conversation.e2e.ts
+++ b/apps/web/tests/chat-continuous-conversation.e2e.ts
@@ -334,6 +334,7 @@ describe('web e2e: continuous conversation grown through the composer', () => {
     }
 
     if (sessionId === undefined) throw new Error('continuous conversation completed no turn')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(scaffold.ctx.agents.get(sessionId)?.session.snapshotEvents().filter(event => (
       event.type === 'turn/end' && event.data.reason.kind === 'completed'
     ))).toHaveLength(TURN_COUNT)
diff --git a/apps/web/tests/chat-long-interactions.e2e.ts b/apps/web/tests/chat-long-interactions.e2e.ts
index 17e639814c..fbc0424c8c 100644
--- a/apps/web/tests/chat-long-interactions.e2e.ts
+++ b/apps/web/tests/chat-long-interactions.e2e.ts
@@ -184,12 +184,17 @@ describe('web e2e: long Chat interaction contract', () => {
     const toolAssistantMarker = FIXTURE.markers.assistant(TOOL_TURN)
     const toolMarker1 = FIXTURE.markers.tool(TOOL_TURN, 1)
     const toolMarker2 = FIXTURE.markers.tool(TOOL_TURN, 2)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const toolUserEvent = requiredEvent(source.session.snapshotEvents(), 'user/message', toolUserMarker)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const toolAssistantEvent = requiredEvent(source.session.snapshotEvents(), 'assistant/message', toolAssistantMarker)
     const branchUserMarker = FIXTURE.markers.user(BRANCH_TURN)
     const branchAssistantMarker = FIXTURE.markers.assistant(BRANCH_TURN)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const branchUserEvent = requiredEvent(source.session.snapshotEvents(), 'user/message', branchUserMarker)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const branchAssistantEvent = requiredEvent(source.session.snapshotEvents(), 'assistant/message', branchAssistantMarker)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const boundary = source.session.snapshotEvents().find((event): event is SessionEvent<'turn/end'> => (
       event.type === 'turn/end' && event.data.turn === BRANCH_TURN
     ))
@@ -315,8 +320,11 @@ describe('web e2e: long Chat interaction contract', () => {
       .find(agent => agent.session.header.parentSession === SessionId(SESSION_ID))
     if (child === undefined) throw new Error('message branch did not create a child session')
     expect(child.session.inheritedEventCount).toBe(boundary.seq + 1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().some(event => carries(event, branchAssistantMarker))).toBe(true)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().some(event => carries(event, FIXTURE.markers.user(BRANCH_TURN + 1)))).toBe(false)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().some(event => carries(event, FIXTURE.markers.user(FIXTURE.turns)))).toBe(false)
 
     const currentCrumb = page.getByRole('navigation', { name: 'Session hierarchy' })
@@ -334,10 +342,13 @@ describe('web e2e: long Chat interaction contract', () => {
     await expect.poll(() => page.locator('[data-streaming="true"]').count(), { timeout: 15_000 }).toBe(0)
     expect(await composer.textContent()).toBe('')
     expect(await composer.isEnabled()).toBe(true)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(source.session.snapshotEvents().some(event => carries(event, CONTINUE_PROMPT))).toBe(false)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().filter(event => (
       event.type === 'user/message' && carries(event, CONTINUE_PROMPT)
     ))).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const lastTurnEnd = child.session.snapshotEvents().findLast((event): event is SessionEvent<'turn/end'> => (
       event.type === 'turn/end'
     ))
diff --git a/apps/web/tests/chat-scroll-fixture.ts b/apps/web/tests/chat-scroll-fixture.ts
index 34ebcc8d1b..bd060c57ff 100644
--- a/apps/web/tests/chat-scroll-fixture.ts
+++ b/apps/web/tests/chat-scroll-fixture.ts
@@ -178,6 +178,7 @@ function fixtureLog(session: Session): string {
       isSeeded: false,
       delegationDepth: 0,
     }),
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ...session.snapshotEvents().map(event => JSON.stringify(event)),
     '',
   ].join('\n')
diff --git a/apps/web/tests/clickable-links-gallery.e2e.ts b/apps/web/tests/clickable-links-gallery.e2e.ts
index ea3b86dbb5..09423cd4ac 100644
--- a/apps/web/tests/clickable-links-gallery.e2e.ts
+++ b/apps/web/tests/clickable-links-gallery.e2e.ts
@@ -287,6 +287,7 @@ function galleryFixture(imageUrl: string): string {
       isSeeded: false,
       delegationDepth: 0,
     }),
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ...session.snapshotEvents().map(event => JSON.stringify({
       ...event,
       time: eventTimeOrigin + event.seq * 1_000,
diff --git a/apps/web/tests/complex-history.perf.ts b/apps/web/tests/complex-history.perf.ts
index faa0146134..bc909b45f5 100644
--- a/apps/web/tests/complex-history.perf.ts
+++ b/apps/web/tests/complex-history.perf.ts
@@ -329,6 +329,7 @@ function fixtureLog(session: Session): string {
   }
   return [
     JSON.stringify(header),
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ...session.snapshotEvents().map(event => JSON.stringify(event)),
     '',
   ].join('\n')
diff --git a/apps/web/tests/feedback-release.e2e.ts b/apps/web/tests/feedback-release.e2e.ts
index b63f3c6213..30e12833ee 100644
--- a/apps/web/tests/feedback-release.e2e.ts
+++ b/apps/web/tests/feedback-release.e2e.ts
@@ -275,6 +275,7 @@ describe.each(MODE === 'record' ? ['deepseek-official'] : ['deepseek-official',
     expect(captured()).toHaveLength(releasedCount)
     await input.press('Enter')
     const findHeaderless = () => scaffold.ctx.sessions.list().find(session => session.id !== sessionId
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       && session.snapshotEvents().some(event => event.type === 'feedback/record'))
     // A command-only session keeps the hero view; its durable event confirms submission.
     await expect.poll(findHeaderless, { timeout: 10_000 }).toBeDefined()
diff --git a/apps/web/tests/goal-command-presentation.e2e.ts b/apps/web/tests/goal-command-presentation.e2e.ts
index 70ad37a799..157dbf947e 100644
--- a/apps/web/tests/goal-command-presentation.e2e.ts
+++ b/apps/web/tests/goal-command-presentation.e2e.ts
@@ -124,6 +124,7 @@ describe('web e2e: /goal human transcript presentation', () => {
 
     const sessions = scaffold.ctx.sessions.list()
     expect(sessions).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const persisted = sessions[0]?.snapshotEvents() ?? []
     expect(persisted.filter(event => event.type === 'command/run' || event.type === 'command/done')
       .map(event => event.type)).toEqual(['command/run', 'command/done'])
diff --git a/apps/web/tests/markdown-cjk-strong.e2e.ts b/apps/web/tests/markdown-cjk-strong.e2e.ts
index 237bbd9d3d..40994debcb 100644
--- a/apps/web/tests/markdown-cjk-strong.e2e.ts
+++ b/apps/web/tests/markdown-cjk-strong.e2e.ts
@@ -79,6 +79,7 @@ function markdownFixture(): string {
       isSeeded: false,
       delegationDepth: 0,
     }),
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ...session.snapshotEvents().map(event => JSON.stringify({
       ...event,
       time: eventTimeOrigin + event.seq * 1_000,
diff --git a/apps/web/tests/markdown-images.e2e.ts b/apps/web/tests/markdown-images.e2e.ts
index b8f18c6c67..f7f369096b 100644
--- a/apps/web/tests/markdown-images.e2e.ts
+++ b/apps/web/tests/markdown-images.e2e.ts
@@ -144,6 +144,7 @@ function markdownImageFixture(remoteUrl: string, outsidePath: string): string {
     // the stats line renders its LLM segment only while the step's measured
     // milliseconds exceed zero, so a fixture that leaves the times unset lets
     // the replay's own speed decide whether the golden matches.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ...session.snapshotEvents().map(event => JSON.stringify({
       ...event,
       time: eventTimeOrigin + event.seq * 1_000,
diff --git a/apps/web/tests/markdown-inline-code-links.e2e.ts b/apps/web/tests/markdown-inline-code-links.e2e.ts
index 62bbf589aa..ac7be4e205 100644
--- a/apps/web/tests/markdown-inline-code-links.e2e.ts
+++ b/apps/web/tests/markdown-inline-code-links.e2e.ts
@@ -76,6 +76,7 @@ function markdownFixture(linkUrl: string): string {
       isSeeded: false,
       delegationDepth: 0,
     }),
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ...session.snapshotEvents().map(event => JSON.stringify({
       ...event,
       time: eventTimeOrigin + event.seq * 1_000,
diff --git a/apps/web/tests/markdown-wide-table.e2e.ts b/apps/web/tests/markdown-wide-table.e2e.ts
index 09f980ab5c..9607969fef 100644
--- a/apps/web/tests/markdown-wide-table.e2e.ts
+++ b/apps/web/tests/markdown-wide-table.e2e.ts
@@ -142,6 +142,7 @@ function wideTableFixture(): string {
   return [
     JSON.stringify(header),
     // Spaced event times, as the sibling markdown fixtures pin them.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ...session.snapshotEvents().map(event => JSON.stringify({
       ...event,
       time: eventTimeOrigin + event.seq * 1_000,
diff --git a/apps/web/tests/math-rendering.e2e.ts b/apps/web/tests/math-rendering.e2e.ts
index c826d5aff2..1363eb35cf 100644
--- a/apps/web/tests/math-rendering.e2e.ts
+++ b/apps/web/tests/math-rendering.e2e.ts
@@ -80,6 +80,7 @@ function mathFixture(): string {
       isSeeded: false,
       delegationDepth: 0,
     }),
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ...session.snapshotEvents().map(event => JSON.stringify({
       ...event,
       time: eventTimeOrigin + event.seq * 1_000,
diff --git a/apps/web/tests/minimal-preset.snapshot.ts b/apps/web/tests/minimal-preset.snapshot.ts
index 22ab1bc476..900cb34055 100644
--- a/apps/web/tests/minimal-preset.snapshot.ts
+++ b/apps/web/tests/minimal-preset.snapshot.ts
@@ -81,6 +81,7 @@ describe('minimal agent preset', () => {
     if (requestHeader === undefined) throw new Error('the minimal agent issued no model request')
     const systemPrompt = systemPromptText(agentHandle.agent.session)
     if (systemPrompt === undefined) throw new Error('the minimal agent issued no system prompt')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agentHandle.agent.session.snapshotEvents().some(event => event.type === 'user/message'
       && event.data.source.kind === 'plugin'
       && event.data.source.plugin === '@deepseek-ai/dsh-system-prompt')).toBe(false)
diff --git a/apps/web/tests/preset-migration.snapshot.ts b/apps/web/tests/preset-migration.snapshot.ts
index 7fb3d881d2..a68c5c9f30 100644
--- a/apps/web/tests/preset-migration.snapshot.ts
+++ b/apps/web/tests/preset-migration.snapshot.ts
@@ -45,6 +45,7 @@ describe.skipIf(webSnapshotMode() === 'record')('historical preset restoration t
       if ('error' in resolved) throw resolved.error
       expect(scaffold.ctx.agentPresets.composedPreset(resolved.agent.ctx)).toBe('ptc')
       expect(resolved.agent.session.header.agentPreset).toBe('ptc')
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(resolved.agent.session.snapshotEvents()
         .filter(event => event.type === 'agent-preset/selected')
         .map(event => event.data.agentPreset)).toEqual(withSelections ? ['ptc', 'standard', 'ptc'] : [])
diff --git a/apps/web/tests/produced-file-mentions.e2e.ts b/apps/web/tests/produced-file-mentions.e2e.ts
index b8ec77c693..91919dad25 100644
--- a/apps/web/tests/produced-file-mentions.e2e.ts
+++ b/apps/web/tests/produced-file-mentions.e2e.ts
@@ -112,6 +112,7 @@ function mentionFixture(): string {
       isSeeded: false,
       delegationDepth: 0,
     }),
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ...session.snapshotEvents().map(event => JSON.stringify({
       ...event,
       time: eventTimeOrigin + event.seq * 1_000,
diff --git a/apps/web/tests/produced-files.e2e.ts b/apps/web/tests/produced-files.e2e.ts
index 1097ed3b1e..acb267b644 100644
--- a/apps/web/tests/produced-files.e2e.ts
+++ b/apps/web/tests/produced-files.e2e.ts
@@ -99,6 +99,7 @@ function producedFixture(): string {
       type: 'session', version: SESSION_FORMAT_VERSION, id: '{{sessionId}}',
       createdAt: 0, cwd: '{{cwd}}', isSeeded: false, delegationDepth: 0,
     }),
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ...session.snapshotEvents().map(event => JSON.stringify({
       ...event, time: eventTimeOrigin + event.seq * 1_000,
     })),
diff --git a/apps/web/tests/reference-composer.e2e.ts b/apps/web/tests/reference-composer.e2e.ts
index 39c7786296..3870715531 100644
--- a/apps/web/tests/reference-composer.e2e.ts
+++ b/apps/web/tests/reference-composer.e2e.ts
@@ -73,6 +73,7 @@ function sourceSessionFixture(): string {
       isSeeded: false,
       delegationDepth: 0,
     }),
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ...session.snapshotEvents().map(event => JSON.stringify(event)),
     '',
   ].join('\n')
@@ -122,6 +123,7 @@ function targetSessionFixture(): string {
       isSeeded: false,
       delegationDepth: 0,
     }),
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ...session.snapshotEvents().map(event => JSON.stringify(event)),
     '',
   ].join('\n')
diff --git a/apps/web/tests/scaffold.ts b/apps/web/tests/scaffold.ts
index 4bc734aa4b..ada371450b 100644
--- a/apps/web/tests/scaffold.ts
+++ b/apps/web/tests/scaffold.ts
@@ -877,6 +877,7 @@ export async function launchWebScaffold(options: LaunchOptions = {}): Promise<We
  * in-memory record-mode harvest, so the on-disk zstd default never matters.
  */
 function rawSessionLog(session: Session): string {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   const encodedEvents = (session.snapshotEvents() as unknown as readonly SessionFormatEvent[])
     .map(event => sessionFormatCatalog.encodeCurrentEvent(event))
   const header = sessionFormatCatalog.encodeCurrentHeader({
@@ -1030,6 +1031,7 @@ async function assertReplaySession(
   const userPrompts = fixtureUserPrompts(expected)
   const candidates = sessions.filter((session) => {
     if (session.header.parentSession !== undefined) return false
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const actual = session.snapshotEvents().flatMap((event) => {
       if (event.type !== 'user/message' || event.data.source.kind !== 'user') return []
       const text = event.data.content.filter(block => block.type === 'text').map(block => block.text).join('')
diff --git a/apps/web/tests/schedule-after.e2e.ts b/apps/web/tests/schedule-after.e2e.ts
index 587a355f4f..fd7a7bf461 100644
--- a/apps/web/tests/schedule-after.e2e.ts
+++ b/apps/web/tests/schedule-after.e2e.ts
@@ -205,6 +205,7 @@ async function waitForReply(
 ): Promise<SessionEvent<'assistant/message'>> {
   const deadline = Date.now() + timeoutMs
   while (true) {
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const event = handle.agent.session.snapshotEvents().find((candidate): candidate is SessionEvent<'assistant/message'> => (
       candidate.type === 'assistant/message' && assistantText(candidate) === text
     ))
@@ -455,6 +456,7 @@ describe.skipIf(MODE === 'record')('web e2e: conversational reminders', () => {
   it('batches one latest occurrence per overdue Every record into an ordinary follow-up', async () => {
     onTestFailed(() => saveFailureShot(page, 'web-e2e-schedule-every'))
     const ids = new Set(everyRecords.map(record => record.id))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const dispatches = everyHandle.agent.session.snapshotEvents().filter(event => (
       event.type === 'schedule/change'
       && event.data.operation === 'dispatch'
@@ -470,6 +472,7 @@ describe.skipIf(MODE === 'record')('web e2e: conversational reminders', () => {
     const decision = acceptedAt[0]
     if (decision === undefined) throw new Error('missing Every decision time')
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const batch = everyHandle.agent.session.snapshotEvents().find(event => (
       event.type === 'user/message'
       && event.data.source.kind === 'plugin'
@@ -493,6 +496,7 @@ describe.skipIf(MODE === 'record')('web e2e: conversational reminders', () => {
     if (reminderRequest === undefined) throw new Error('model did not receive the Every batch')
     expect(requestText(reminderRequest)).toContain(batchBlock.text)
     expectReminderFraming(reminderRequest)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const active = foldScheduleEvents(everyHandle.agent.session.snapshotEvents()).active
     expect(active).toHaveLength(2)
     expect(active.every(record => Date.parse(record.scheduledAt) > Date.parse(decision))).toBe(true)
@@ -516,6 +520,7 @@ describe.skipIf(MODE === 'record')('web e2e: conversational reminders', () => {
 
   it('uses request-local browser context to create an explicit local At reminder', async () => {
     onTestFailed(() => saveFailureShot(page, 'web-e2e-schedule-at'))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const user = atHandle.agent.session.snapshotEvents().find(event => (
       event.type === 'user/message'
       && event.data.source.kind === 'user'
@@ -541,11 +546,13 @@ describe.skipIf(MODE === 'record')('web e2e: conversational reminders', () => {
     }
     expect(selectedAt.time_zone).toBe(AT_BROWSER_ZONE)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const toolCall = atHandle.agent.session.snapshotEvents().find(event => (
       event.type === 'tool/call' && event.data.name === 'schedule_create'
     ))
     if (toolCall?.type !== 'tool/call') throw new Error('missing schedule_create tool call')
     expect(JSON.parse(toolCall.data.arguments)).toEqual({ prompt: AT_PROMPT, at: selectedAt })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const created = atHandle.agent.session.snapshotEvents().find(event => (
       event.type === 'schedule/change'
       && event.data.operation === 'create'
@@ -560,6 +567,7 @@ describe.skipIf(MODE === 'record')('web e2e: conversational reminders', () => {
       prompt: AT_PROMPT,
       scheduledAt,
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(atHandle.agent.session.snapshotEvents().filter(event => (
       event.type === 'schedule/change'
       && event.data.operation === 'dispatch'
diff --git a/apps/web/tests/seeded-history.e2e.ts b/apps/web/tests/seeded-history.e2e.ts
index 09110c5360..3472c80c57 100644
--- a/apps/web/tests/seeded-history.e2e.ts
+++ b/apps/web/tests/seeded-history.e2e.ts
@@ -495,6 +495,7 @@ describe('web e2e: seeded history renders through cold resume', () => {
 
       const agent = scaffold.ctx.agents.get(SessionId(SEED_ID))
       if (agent === undefined) throw new Error('seeded session did not attach an agent')
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const done = agent.session.snapshotEvents().filter(event => event.type === 'command/done').at(-1)
       if (done?.type !== 'command/done') throw new Error('feedback command did not settle')
       const [sessionLine, userLine, extraLine] = done.data.text?.split('\n') ?? []
diff --git a/apps/web/tests/settings-chrome.e2e.ts b/apps/web/tests/settings-chrome.e2e.ts
index 8ef2af7048..ed5b270188 100644
--- a/apps/web/tests/settings-chrome.e2e.ts
+++ b/apps/web/tests/settings-chrome.e2e.ts
@@ -144,6 +144,7 @@ describe('web e2e: settings modal and General preferences', () => {
   it('stores Permission as the default for future sessions without changing an existing session', async () => {
     onTestFailed(() => saveFailureShot(page, 'web-e2e-settings-permission'))
     const existing = scaffold.ctx.sessions.create(SessionId('settings-permission-before'))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(existing.snapshotEvents().find(event => event.type === 'permission/preset')?.data)
       .toEqual({ preset: 'workspace-write' })
 
@@ -160,10 +161,12 @@ describe('web e2e: settings modal and General preferences', () => {
     const document = await readFile(join(scaffold.harnessHome, 'settings.yaml'), 'utf8')
     expect(document).toContain('permission:')
     expect(document).toContain('defaultPreset: read-only')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(existing.snapshotEvents().find(event => event.type === 'permission/preset')?.data)
       .toEqual({ preset: 'workspace-write' })
 
     const created = scaffold.ctx.sessions.create(SessionId('settings-permission-after'))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(created.snapshotEvents().map(event => [event.type, event.data])).toEqual([
       ['permission/preset', { preset: 'read-only' }],
       ['sandbox/mode', { mode: 'read-only' }],
@@ -181,6 +184,7 @@ describe('web e2e: settings modal and General preferences', () => {
     const confirmedDocument = await readFile(join(scaffold.harnessHome, 'settings.yaml'), 'utf8')
     expect(confirmedDocument).toContain('defaultPreset: danger-full-access')
     const confirmed = scaffold.ctx.sessions.create(SessionId('settings-permission-confirmed'))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(confirmed.snapshotEvents().map(event => [event.type, event.data])).toEqual([
       ['permission/preset', { preset: 'danger-full-access' }],
       ['sandbox/mode', { mode: 'danger-full-access' }],
diff --git a/apps/web/tests/subagent-interrupt-ui.e2e.ts b/apps/web/tests/subagent-interrupt-ui.e2e.ts
index 11d96c63fd..7fe4b6f2de 100644
--- a/apps/web/tests/subagent-interrupt-ui.e2e.ts
+++ b/apps/web/tests/subagent-interrupt-ui.e2e.ts
@@ -320,6 +320,7 @@ describe.skipIf(MODE === 'record')('web e2e: composer interrupt for a running co
     const child = scaffold.ctx.agents.get(childId)
     expect(child).toBeDefined()
     expect(child!.inbox.nextTurn).toHaveLength(2)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child!.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(2)
     await page.getByRole('button', { name: 'Send message' }).waitFor({ timeout: 15_000 })
 
diff --git a/apps/web/tests/subagent-interrupt.e2e.ts b/apps/web/tests/subagent-interrupt.e2e.ts
index 71e25c5918..9031d5577b 100644
--- a/apps/web/tests/subagent-interrupt.e2e.ts
+++ b/apps/web/tests/subagent-interrupt.e2e.ts
@@ -159,7 +159,9 @@ describe.skipIf(MODE === 'record')('web e2e: subagents/interruptByParent over th
     expect(child).toBeDefined()
     expect(child!.status).toBe('idle')
     expect(child!.inbox.nextTurn).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child!.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const lastEnd = child!.session.snapshotEvents().filter(event => event.type === 'turn/end').at(-1)
     expect((lastEnd)?.data.reason.kind).toBe('aborted')
 
diff --git a/docs/config-catalog.i18n.yaml b/docs/config-catalog.i18n.yaml
index bfc5221538..f0cecf4512 100644
--- a/docs/config-catalog.i18n.yaml
+++ b/docs/config-catalog.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write docs/config-catalog.md
-config-catalog.md: 50626a7d85aa54f6d2e3cdb6140b3af8081d1461
-config-catalog.zh.md: d2ae35b91a4a83da882e8ec5af82a505aa5d5bd1
+config-catalog.md: 0b56a574cac7f42efafaac8fb80047027441e7dc
+config-catalog.zh.md: ac10d61b7c2f14513819caef2faba992ca84451e
diff --git a/docs/config-catalog.md b/docs/config-catalog.md
index 50626a7d85..0b56a574ca 100644
--- a/docs/config-catalog.md
+++ b/docs/config-catalog.md
@@ -3236,7 +3236,7 @@ export interface Config {
 export type ApprovalPolicy = 'ask' | 'never'
 ```
 
-Source: [`packages/interaction/user-approval/src/index.ts:127`](../packages/interaction/user-approval/src/index.ts)
+Source: [`packages/interaction/user-approval/src/index.ts:128`](../packages/interaction/user-approval/src/index.ts)
 
 <a id="deepseek-aidsh-web"></a>
 
diff --git a/docs/config-catalog.zh.md b/docs/config-catalog.zh.md
index d2ae35b91a..ac10d61b7c 100644
--- a/docs/config-catalog.zh.md
+++ b/docs/config-catalog.zh.md
@@ -3238,7 +3238,7 @@ export interface Config {
 export type ApprovalPolicy = 'ask' | 'never'
 ```
 
-来源：[`packages/interaction/user-approval/src/index.ts:126`](../packages/interaction/user-approval/src/index.ts)
+来源：[`packages/interaction/user-approval/src/index.ts:128`](../packages/interaction/user-approval/src/index.ts)
 
 <a id="deepseek-aidsh-web"></a>
 
diff --git a/packages/acp/acp/tests/bridge.spec.ts b/packages/acp/acp/tests/bridge.spec.ts
index ad1fa30fac..218a88ada4 100644
--- a/packages/acp/acp/tests/bridge.spec.ts
+++ b/packages/acp/acp/tests/bridge.spec.ts
@@ -902,6 +902,7 @@ describe('automation-only ACP bridge', () => {
     expect(secondImage.attachment.mediaType).toBe('image/jpeg')
     expect(secondImage.attachment.bytes).toBe(1)
     const agent = harness.ctx.agents.get(SessionId(sessionId))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(JSON.stringify(agent?.session.snapshotEvents())).not.toContain('AQ==')
   })
 
@@ -975,6 +976,7 @@ describe('automation-only ACP bridge', () => {
       sessionId,
       prompt: [{ type: 'image', data: '', mimeType: 'image/png' }],
     })).rejects.toThrow(/inline image prompts were not advertised/)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(harness.ctx.agents.get(SessionId(sessionId))?.session.snapshotEvents().some(event => event.type === 'turn/start')).toBe(false)
   })
 
diff --git a/packages/acp/acp/tests/turns.spec.ts b/packages/acp/acp/tests/turns.spec.ts
index a17223750f..8b8e38d8ab 100644
--- a/packages/acp/acp/tests/turns.spec.ts
+++ b/packages/acp/acp/tests/turns.spec.ts
@@ -216,6 +216,7 @@ describe('ACP prompt lifecycle', () => {
     const prompt = harness.client.prompt({ sessionId, prompt: [{ type: 'text', text: 'go' }] })
       .finally(() => { settled = true })
     await vi.waitFor(() => {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().filter(event => event.type === 'agent/inbox/spliced'
         && event.data.inserted.length > 0)).toHaveLength(2)
     })
@@ -316,6 +317,7 @@ describe('ACP prompt lifecycle', () => {
 
     await expect(first).resolves.toEqual({ stopReason: 'cancelled' })
     expect(harness.adapter.requests).toEqual([])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = harness.ctx.agents.get(SessionId(sessionId))?.session.snapshotEvents() ?? []
     expect(events.some(event => event.type === 'user/message' || event.type === 'turn/start')).toBe(false)
   })
@@ -443,6 +445,7 @@ describe('ACP prompt lifecycle', () => {
     await harness.client.cancel({ sessionId })
     await expect(prompt).resolves.toEqual({ stopReason: 'cancelled' })
     await agent.whenIdle()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')?.data.reason)
       .toEqual({ kind: 'aborted', reason: { kind: 'user' } })
   })
@@ -468,12 +471,14 @@ describe('ACP prompt lifecycle', () => {
       source: { kind: 'plugin', plugin: 'test' },
     }))
     await vi.waitFor(() => {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().some(event => event.type === 'turn/start')).toBe(true)
     })
 
     await harness.client.cancel({ sessionId })
     await agent.whenIdle()
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')?.data.reason)
       .toEqual({ kind: 'aborted', reason: { kind: 'user' } })
   })
diff --git a/packages/api/session-controller/src/commands.ts b/packages/api/session-controller/src/commands.ts
index 35fc113408..a564234664 100644
--- a/packages/api/session-controller/src/commands.ts
+++ b/packages/api/session-controller/src/commands.ts
@@ -541,6 +541,7 @@ export class SessionCommandController {
   private async readSessionState(sessionId: SessionId): Promise<SessionReadState> {
     const attached = this.ctx.sessions.get(sessionId)
     if (attached !== undefined) {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       return { id: attached.id, header: attached.header, events: attached.snapshotEvents() }
     }
     const inspected = await inspectApiSession(this.ctx, sessionId)
@@ -587,6 +588,7 @@ function hasPromptRequest(agent: Agent, requestId: SessionRequestId): boolean {
     return source.kind === 'user' && 'rpcId' in source && source.rpcId === requestId
   }
   if (agent.inbox.nextTurn.some(matches) || agent.inbox.nextStep.some(matches)) return true
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return agent.session.snapshotEvents().some((event) => {
     if (event.type !== 'user/message') return false
     const source = event.data.source
diff --git a/packages/api/session-controller/src/history.ts b/packages/api/session-controller/src/history.ts
index cfaf00421e..a22badc1f1 100644
--- a/packages/api/session-controller/src/history.ts
+++ b/packages/api/session-controller/src/history.ts
@@ -152,6 +152,7 @@ export class SessionHistoryController {
       // Constructor seed events have no session/event notification. Normally
       // only the end-seed suffix is new; if persistence advanced after the
       // opening observation, replay everything beyond that snapshot cursor.
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const suffix = session.snapshotEvents(snapshotCursor === undefined
         ? session.firstLiveSeq
         : SessionLogOffset(snapshotCursor + 1))
diff --git a/packages/api/session-controller/src/index.ts b/packages/api/session-controller/src/index.ts
index 9cc93be179..8c4107f592 100644
--- a/packages/api/session-controller/src/index.ts
+++ b/packages/api/session-controller/src/index.ts
@@ -202,6 +202,7 @@ export class SessionController extends TypertRemoteService {
       return Promise.resolve({
         meta: attached.header,
         inheritedEventCount: attached.inheritedEventCount,
+        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         events: attached.snapshotEvents(),
       })
     }
diff --git a/packages/api/session-controller/tests/commands-queue-attachment.host.spec.ts b/packages/api/session-controller/tests/commands-queue-attachment.host.spec.ts
index d7559bc047..22a38f92f9 100644
--- a/packages/api/session-controller/tests/commands-queue-attachment.host.spec.ts
+++ b/packages/api/session-controller/tests/commands-queue-attachment.host.spec.ts
@@ -41,6 +41,7 @@ async function commandHarness(
   // never appends one: the identity folds as continuable, but from the
   // inherited prefix rather than this Session's own suffix.
   const lineage = childMode === 'seeded-continuable' || childMode === 'seed-only'
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ? ancestor.snapshotEvents()
     : undefined
   const session = ctx.sessions.create(sessionId, {
diff --git a/packages/api/session-controller/tests/session-cold.host.spec.ts b/packages/api/session-controller/tests/session-cold.host.spec.ts
index eaca25062f..54003d6a65 100644
--- a/packages/api/session-controller/tests/session-cold.host.spec.ts
+++ b/packages/api/session-controller/tests/session-cold.host.spec.ts
@@ -203,6 +203,7 @@ describe('attached updatedAt tracks human prompts', () => {
       meta: { cwd: '/proj', createdAt: 500 },
     })
     ctx.agents.register({ id: resumed.id, session: resumed, status: 'idle', ctx } as Agent)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const boundary = resumed.snapshotEvents().at(-1)
     expect(boundary?.type).toBe('session/end-seed')
     expect(boundary?.time).toBeGreaterThan(worked)
@@ -717,6 +718,7 @@ describe('sessions.prompt synchronous rejection', () => {
       defaultModelSelection: () => ({ provider: 'p', model: 'm' }),
       cwd: '/tmp',
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const initialEvents = session.snapshotEvents()
     const rejectedContent: readonly SessionPromptRequest['content'][] = [
       [],
@@ -741,6 +743,7 @@ describe('sessions.prompt synchronous rejection', () => {
     }
     expect(followup).not.toHaveBeenCalled()
     expect(steer).not.toHaveBeenCalled()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual(initialEvents)
 
     const queued = await remote.prompt(promptRequest({
diff --git a/packages/api/session-controller/tests/session-fork.host.spec.ts b/packages/api/session-controller/tests/session-fork.host.spec.ts
index 1661f505bc..355f99c0a6 100644
--- a/packages/api/session-controller/tests/session-fork.host.spec.ts
+++ b/packages/api/session-controller/tests/session-fork.host.spec.ts
@@ -95,6 +95,7 @@ describe('sessions.fork', () => {
     expect(response.ok ? null : response.error).toBeNull()
     if (!response.ok) return
     const child = ctx.sessions.get(response.value.sessionId)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child?.snapshotEvents().map(event => event.type)).toEqual([
       'turn/start', 'user/message', 'turn/end', 'session/end-seed',
     ])
@@ -214,12 +215,14 @@ describe('sessions.fork', () => {
     const omitted = await proxy.fork(request({ sessionId: source.id }))
     expect(omitted.ok).toBe(true)
     if (omitted.ok) {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(ctx.sessions.get(omitted.value.sessionId)?.snapshotEvents().map(event => event.type))
         .toEqual(expectedTypes)
     }
     const pastEnd = await proxy.fork(request({ sessionId: source.id, atSeq: 999 }))
     expect(pastEnd.ok).toBe(true)
     if (pastEnd.ok) {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(ctx.sessions.get(pastEnd.value.sessionId)?.snapshotEvents().map(event => event.type))
         .toEqual(expectedTypes)
     }
@@ -243,10 +246,12 @@ describe('sessions.fork', () => {
     const source = liveAgent(ctx, 'session-aborted', 1, 'aborted')
     // What a stopped message's fork button anchors on: the frozen node sits
     // one event before its turn/end, floored client-side to that event's seq.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const anchor = (source.snapshotEvents().at(-1)?.seq ?? 0) - 1
     const response = await remote(ctx).fork(request({ sessionId: source.id, atSeq: anchor }))
     expect(response.ok).toBe(true)
     if (!response.ok) return
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(ctx.sessions.get(response.value.sessionId)?.snapshotEvents().map(event => event.type)).toEqual([
       'turn/start', 'user/message', 'turn/end',
       'turn/start', 'user/message', 'turn/end',
@@ -258,6 +263,7 @@ describe('sessions.fork', () => {
   it('rejects an in-log anchor whose turn is still open', async () => {
     const ctx = await composed()
     const source = liveAgent(ctx, 'session-open', 1, 'open')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const anchor = source.snapshotEvents().at(-1)?.seq ?? 0
     const response = await remote(ctx).fork(request({ sessionId: source.id, atSeq: anchor }))
     expect(response).toMatchObject({
diff --git a/packages/api/session-controller/tests/session-projections.host.spec.ts b/packages/api/session-controller/tests/session-projections.host.spec.ts
index 90ffb10456..9339df6779 100644
--- a/packages/api/session-controller/tests/session-projections.host.spec.ts
+++ b/packages/api/session-controller/tests/session-projections.host.spec.ts
@@ -172,6 +172,7 @@ describe('session.history projections block', () => {
     parent.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
     const inheritedEventCount = parent.seq
     const child = ctx.sessions.create(SessionId('wire-seed-child'), {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       seed: parent.snapshotEvents(),
       inheritedEventCount,
       meta: {
@@ -448,6 +449,7 @@ describe('session.history projections block', () => {
     expect('test/last-user' in after.projections.values).toBe(false)
     expect(after.projections.values.sessionListMetadata).toEqual({
       blank: true,
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       lastPromptAt: session.eventAt(SessionSeq(session.seq - 1))?.time,
     })
   })
@@ -482,6 +484,7 @@ describe('session.list projections column', () => {
     expect(row?.projections?.values['test/last-user']).toEqual({ text: 'm0' })
     expect(row?.projections?.values.sessionListMetadata).toEqual({
       blank: false,
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       lastPromptAt: session.eventAt(SessionSeq(session.seq - 1))?.time,
     })
     expect(row?.projections?.asOfSeq).toBe(session.seq - 1)
diff --git a/packages/api/session-controller/tests/session-rename.host.spec.ts b/packages/api/session-controller/tests/session-rename.host.spec.ts
index 60987608b9..55ed1e32e0 100644
--- a/packages/api/session-controller/tests/session-rename.host.spec.ts
+++ b/packages/api/session-controller/tests/session-rename.host.spec.ts
@@ -76,6 +76,7 @@ describe('sessions.rename', () => {
     expect(renamed.ok).toBe(true)
     if (!renamed.ok) return
     expect(renamed.value.title).toBe('new name')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const event = source.snapshotEvents().findLast(item => item.type === 'session/title')
     expect(event?.seq).toBe(renamed.value.seq)
     expect(event?.data).toMatchObject({ title: 'new name', source: { kind: 'user' } })
diff --git a/packages/api/session-controller/tests/transport.host.spec.ts b/packages/api/session-controller/tests/transport.host.spec.ts
index ebc731769e..9ef70e5d8d 100644
--- a/packages/api/session-controller/tests/transport.host.spec.ts
+++ b/packages/api/session-controller/tests/transport.host.spec.ts
@@ -230,6 +230,7 @@ describe('SessionHistoryController', () => {
     observed.resolve({
       source: 'live',
       header: attached.header,
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       events: attached.snapshotEvents(),
       cursor: attached.seq - 1,
       projections: { asOfSeq: attached.seq - 1, values: {} },
diff --git a/packages/bundle/headless/src/index.ts b/packages/bundle/headless/src/index.ts
index 50a5c664be..90f29b460a 100644
--- a/packages/bundle/headless/src/index.ts
+++ b/packages/bundle/headless/src/index.ts
@@ -67,6 +67,7 @@ function summarize(session: Session, firstSeq: SessionLogOffset): RunOutcome {
   let reason: SessionEvent<'turn/end'>['data']['reason'] | undefined
   const length = session.seq
   for (let seq = firstSeq; seq < length; seq++) {
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const event = session.eventAt(SessionSeq(seq))
     if (event === undefined) {
       throw new Error(`headless summary cannot read seq ${String(seq)} below captured length ${String(length)}`)
diff --git a/packages/client/ui-tool/tests/spill-policy-terminal.client.spec.ts b/packages/client/ui-tool/tests/spill-policy-terminal.client.spec.ts
index 0db57e2139..0716dd609f 100644
--- a/packages/client/ui-tool/tests/spill-policy-terminal.client.spec.ts
+++ b/packages/client/ui-tool/tests/spill-policy-terminal.client.spec.ts
@@ -70,6 +70,7 @@ async function executeShell(text: string, nested: boolean, name = 'bash', maxInl
     let block: ToolResultNode
     if (nested) {
       expect(result.value).toMatchObject({ result: true })
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const dispatches = session.snapshotEvents().filter(event => event.type === 'tool/ptc-dispatch')
       expect(dispatches).toHaveLength(1)
       const event = dispatches[0]!
diff --git a/packages/compaction/command-compact/tests/command-compact.spec.ts b/packages/compaction/command-compact/tests/command-compact.spec.ts
index f2ab167d69..92013469ac 100644
--- a/packages/compaction/command-compact/tests/command-compact.spec.ts
+++ b/packages/compaction/command-compact/tests/command-compact.spec.ts
@@ -121,6 +121,7 @@ function expectLastLifecycle(
   args: string,
   outcome: CommandResult,
 ): string {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   const lifecycle = test.agent.session.snapshotEvents()
     .filter(event => event.type === 'command/run' || event.type === 'command/done')
     .slice(-2)
diff --git a/packages/compaction/command-compact/tests/loader-composition.spec.ts b/packages/compaction/command-compact/tests/loader-composition.spec.ts
index 442d8196dc..5b8402aae7 100644
--- a/packages/compaction/command-compact/tests/loader-composition.spec.ts
+++ b/packages/compaction/command-compact/tests/loader-composition.spec.ts
@@ -130,6 +130,7 @@ describe('command-compact real Loader composition', () => {
       text: 'Compacted 3 history items (~99 tokens).',
       sourceEventSeq: RESULT.summarySeq,
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().map(event => ({ type: event.type, data: event.data }))).toEqual([
       {
         type: 'command/run',
diff --git a/packages/compaction/compaction-basic/src/region.ts b/packages/compaction/compaction-basic/src/region.ts
index 8bdecee0cf..e8efef2b12 100644
--- a/packages/compaction/compaction-basic/src/region.ts
+++ b/packages/compaction/compaction-basic/src/region.ts
@@ -98,7 +98,8 @@ interface TransactionFailure {
  */
 function systemHead(session: Session, headSeq: SessionSeq): SessionEvent<'system/message'> | undefined {
   // Surface nodes are current log seqs, so the event exists.
-  // oxlint-disable-next-line typescript/no-non-null-assertion
+  // Existing Session history read; migration deferred.
+  // oxlint-disable-next-line typescript/no-non-null-assertion, typescript/no-deprecated
   const head = session.eventAt(headSeq)!
   return head.type === 'system/message' ? head : undefined
 }
@@ -536,7 +537,8 @@ function buildSummarizationInput(
   const system = head === undefined ? null : session.deriveEventMessage(head)
   const regionMessages = shadowedSeqs
     // shadowedSeqs are current surface seqs, so each is a valid log index.
-    // oxlint-disable-next-line typescript/no-non-null-assertion
+    // Existing Session history read; migration deferred.
+    // oxlint-disable-next-line typescript/no-non-null-assertion, typescript/no-deprecated
     .map(seq => session.deriveEventMessage(session.eventAt(seq)!))
     .filter((message): message is Message => message !== null)
   return {
@@ -553,7 +555,8 @@ function inspectCompactionEntryState(session: Session): CompactionEntryState {
   let compactionEntryStateKnown = false
   let latestEndSeedSeq: SessionSeq | undefined
   for (let seq = session.seq - 1; seq >= 0; seq -= 1) {
-    // oxlint-disable-next-line typescript/no-non-null-assertion
+    // Existing Session history read; migration deferred.
+    // oxlint-disable-next-line typescript/no-non-null-assertion, typescript/no-deprecated
     const event = session.eventAt(SessionSeq(seq))!
     if (latestEndSeedSeq === undefined && event.type === 'session/end-seed') {
       latestEndSeedSeq = event.seq
diff --git a/packages/compaction/compaction-basic/tests/compaction-basic.spec.ts b/packages/compaction/compaction-basic/tests/compaction-basic.spec.ts
index bd6a48af66..df5cbce97c 100644
--- a/packages/compaction/compaction-basic/tests/compaction-basic.spec.ts
+++ b/packages/compaction/compaction-basic/tests/compaction-basic.spec.ts
@@ -625,6 +625,7 @@ describe('pressure measurement and retention', () => {
 
     await expect(compactIfNeeded(compact, session, 'context-overflow')).resolves.toBeNull()
     expect(session.surface.replaceGeneration).toBe(generation)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'compaction/start')).toBe(false)
   })
 
@@ -646,6 +647,7 @@ describe('pressure measurement and retention', () => {
     const compact = service(compactConfig, ctx)
     const session = conversation(4, undefined, 'SYSTEM HEAD')
     const [head, firstUser] = session.surface.nodes
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.eventAt(head!)?.type).toBe('system/message')
 
     const range = selectCompactableRange(session, ctx.tokenMeter.measure(session), compactConfig.retainTokens!)
@@ -889,9 +891,11 @@ describe('optional model-free tool-result pruning', () => {
 
     expect(await compactIfNeeded(compact, session)).not.toBeNull()
     expect(compact.calls).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const original = session.snapshotEvents().find(event => event.type === 'tool/result')
     expect(original?.type === 'tool/result' && original.data.message.content[0].content[0])
       .toEqual({ type: 'text', text: 'X'.repeat(3_000) })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event =>
       event.type === 'tool/result' && event.surfaceOp !== 'append')).toHaveLength(0)
   })
@@ -918,6 +922,7 @@ describe('compaction region transaction', () => {
     expect(result.shadowedTokenCount).toBeGreaterThan(0)
     expect(compact.calls[0]).toMatchObject({ signal: SIGNAL })
     expect(summarizedText(compact.calls[0]!.input)).toContain('fixture user 1')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const summary = session.snapshotEvents().findLast(event => event.type === 'compaction/summary')
     expect(summary?.data).toMatchObject({
       shadowedSeqs: result.shadowedSeqs,
@@ -934,6 +939,7 @@ describe('compaction region transaction', () => {
     expect(head.content[0]?.type === 'text' ? head.content[0].text : '').toContain('<compacted-summary>')
     expect(head.content.at(-1)).toEqual({ type: 'text', text: '</compacted-summary>' })
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const replay = Session.create(SessionId('replay'), session.snapshotEvents())
     expect(replay.deriveMessages()).toEqual(session.deriveMessages())
   })
@@ -958,6 +964,7 @@ describe('compaction region transaction', () => {
     const compact = service()
     const emptyHead = conversation(3, undefined, '')
     const emptyNodes = emptyHead.surface.nodes
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(emptyHead.eventAt(emptyNodes[0]!)?.type).toBe('system/message')
     await compact.compactRegion(emptyNodes[1]!, emptyNodes[2]!, agent(emptyHead, MODEL), SIGNAL)
     expect(compact.calls[0]!.input.messages[0]).toMatchObject({ role: 'user' })
@@ -979,6 +986,7 @@ describe('compaction region transaction', () => {
       .rejects.toThrow(/node 0 holds the system prompt/)
 
     expect(session.surface.nodes).toEqual(nodes)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = session.snapshotEvents().findLast(event => event.type === 'compaction/end')
     expect(end?.type === 'compaction/end' && end.data.error).toBeDefined()
   })
@@ -1092,6 +1100,7 @@ describe('compaction region transaction', () => {
       agent(session, MODEL),
     )).rejects.toThrow('summary unavailable')
     expect(session.surface.nodes).toEqual(before)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().findLast(event => event.type === 'compaction/end')?.data)
       .toMatchObject({ error: 'summary unavailable' })
   })
@@ -1106,6 +1115,7 @@ describe('compaction region transaction', () => {
       nodes[2]!,
       agent(session, MODEL),
     )).rejects.toBe('plain failure')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().findLast(event => event.type === 'compaction/end')?.data)
       .toMatchObject({ error: 'plain failure' })
   })
@@ -1126,6 +1136,7 @@ describe('compaction region transaction', () => {
       nodes[2]!,
       agent(session, MODEL),
     )).resolves.toMatchObject({ shadowedSeqs: nodes.slice(0, 3) })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'compaction/summary')).toBe(true)
   })
 
@@ -1145,6 +1156,7 @@ describe('compaction region transaction', () => {
       nodes[2]!,
       agent(session, MODEL),
     )).rejects.toThrow(/session surface changed/)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'compaction/summary')).toBe(false)
   })
 
@@ -1162,6 +1174,7 @@ describe('compaction region transaction', () => {
       nodes[2]!,
       agent(session, MODEL),
     )).rejects.toThrow(/summary is not smaller/)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'compaction/summary')).toBe(false)
   })
 
@@ -1435,6 +1448,7 @@ describe('default one-shot summarizer', () => {
     const session = conversation(3, 'large history '.repeat(500))
     const nodes = session.surface.nodes
     await compact.compactRegion(nodes[0]!, nodes[3]!, agent(session, MODEL), SIGNAL)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().findLast(event => event.type === 'compaction/summary')?.data).toMatchObject({
       summary: [{ type: 'text', text: 'routed summary' }],
       llmStreamCall: true,
@@ -1561,6 +1575,7 @@ describe('automatic listener and loader composition', () => {
     next: () => Promise<RequestErrorAction> = () => Promise.resolve(undefined),
   ): Promise<boolean> {
     const failure: LlmFailure = { message: error.message, code: error.code ?? 'UNKNOWN' }
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turn = owner.session.snapshotEvents().findLast(event => event.type === 'turn/start')?.data.turn ?? 1
     return agentEvents(ctx, owner).waterfall(
       'agent/request-error',
@@ -1581,10 +1596,12 @@ describe('automatic listener and loader composition', () => {
     })
     const pressured = conversation(4)
     await preStep(ctx, agent(pressured, 'unconfigured-agent-fallback'))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(pressured.snapshotEvents().some(event => event.type === 'compaction/summary')).toBe(true)
 
     const small = conversation(1)
     await preStep(ctx, agent(small, MODEL))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(small.snapshotEvents().some(event => event.type === 'compaction/start')).toBe(false)
     expect(compact.calls).toHaveLength(1)
   })
@@ -1602,6 +1619,7 @@ describe('automatic listener and loader composition', () => {
       .resolves.toEqual({ kind: 'enter', messages: [] })
 
     expect(compactIfNeeded).not.toHaveBeenCalled()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(pressured.snapshotEvents().some(event => event.type === 'compaction/start')).toBe(false)
   })
 
@@ -1618,6 +1636,7 @@ describe('automatic listener and loader composition', () => {
 
     await expect(preStep(ctx, agent(session, MODEL))).resolves.toEqual({ kind: 'enter', messages: [] })
     expect(warnings).toContainEqual(expect.stringContaining('temporary failure'))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'compaction/summary')).toBe(false)
   })
 
@@ -1677,6 +1696,7 @@ describe('automatic listener and loader composition', () => {
 
     expect(decision).toBe(true)
     expect(session.surface.replaceGeneration).toBe(beforeGeneration + 1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'compaction/summary')).toBe(true)
     expect(session.surface.nodes).toContain(retainedSeq)
   })
@@ -1696,6 +1716,7 @@ describe('automatic listener and loader composition', () => {
 
     expect(await recover(ctx, agent(session, MODEL), overflow())).toBe(true)
     expect(session.surface.replaceGeneration).toBe(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'compaction/summary')).toBe(false)
     expect(compact.calls).toHaveLength(0)
   })
@@ -1714,6 +1735,7 @@ describe('automatic listener and loader composition', () => {
     const session = toolConversation()
 
     expect(await recover(ctx, agent(session, MODEL), overflow())).toBe(true)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'compaction/summary')).toBe(true)
     expect(compact.calls).toHaveLength(1)
     expect(summarizedText(compact.calls[0]!.input)).toContain('tool result middle pruned')
@@ -1737,7 +1759,9 @@ describe('automatic listener and loader composition', () => {
 
     expect(await recover(ctx, agent(session, MODEL), overflow())).toBe(true)
     expect(session.surface.replaceGeneration).toBe(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event => event.type === 'tool/result')).toHaveLength(2)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().findLast(event => event.type === 'compaction/end')?.data)
       .toMatchObject({ error: 'summary unavailable after prune' })
     expect(warnings).toContainEqual(expect.stringContaining('retrying from the replacement surface'))
@@ -1940,9 +1964,11 @@ describe('automatic listener and loader composition', () => {
     })
     const session = conversation(4)
     await preStep(ctx, agent(session, MODEL))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const summaries = session.snapshotEvents().filter(event => event.type === 'compaction/summary').length
     expect(summaries).toBe(1)
     expect(await recover(ctx, agent(session, MODEL), overflow())).toBe(false)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event => event.type === 'compaction/summary')).toHaveLength(summaries)
   })
 
@@ -1955,6 +1981,7 @@ describe('automatic listener and loader composition', () => {
     })
     const session = conversation(4)
     await preStep(ctx, agent(session, MODEL))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'compaction/start')).toBe(false)
     expect(await recover(ctx, agent(session, MODEL), overflow())).toBe(false)
   })
@@ -1987,6 +2014,7 @@ describe('automatic listener and loader composition', () => {
 
     const session = conversation(4)
     await preStep(ctx, agent(session, MODEL))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'compaction/start')).toBe(false)
     expect(await recover(ctx, agent(session, MODEL), overflow())).toBe(false)
   })
@@ -2128,6 +2156,7 @@ describe('route-priced image pressure', () => {
 
     const result = await compact.compactIfNeeded(agent(session), 'pressure', SIGNAL)
     expect(result).not.toBeNull()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const summaryEvent = session.snapshotEvents().find(event => event.type === 'compaction/summary')
     expect(summaryEvent).toBeDefined()
     const shadowedHeuristic = before.nodes
diff --git a/packages/compaction/compaction-basic/tests/compaction-loop-repro.spec.ts b/packages/compaction/compaction-basic/tests/compaction-loop-repro.spec.ts
index a527226c03..a5834df1c7 100644
--- a/packages/compaction/compaction-basic/tests/compaction-loop-repro.spec.ts
+++ b/packages/compaction/compaction-basic/tests/compaction-loop-repro.spec.ts
@@ -212,6 +212,7 @@ function overflowHistorySeed(): readonly SessionEvent[] {
     session.append('step/end', { turn, step: 1 })
     session.append('turn/end', { turn, reason: { kind: 'completed' } })
   }
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return session.snapshotEvents()
 }
 
@@ -230,7 +231,9 @@ describe('CBR-001: a real-loop checkpoint is a valid boundary on both sides', ()
       await waitForIdle(ctx, agent)
 
       expect(agent.session.requestHeader()?.config.model).toBe('mock')
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().some(event => event.type === 'compaction/summary')).toBe(true)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
         type: 'turn/end',
         data: { reason: { kind: 'completed' } },
@@ -247,6 +250,7 @@ describe('CBR-001: a real-loop checkpoint is a valid boundary on both sides', ()
       agent.followup(createUserMessage({ content: [{ type: 'text', text: 'do tool work' }], source: { kind: 'user' } }))
       await waitForIdle(ctx, agent)
 
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const events = agent.session.snapshotEvents()
       const compactStart = events.find(event => event.type === 'compaction/start')
       expect(compactStart).toBeDefined()
@@ -279,6 +283,7 @@ describe('CBR-001: a real-loop checkpoint is a valid boundary on both sides', ()
       agent.followup(createUserMessage({ content: [{ type: 'text', text: 'do a long multi-step task' }], source: { kind: 'user' } }))
       await waitForIdle(ctx, agent)
 
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const events = agent.session.snapshotEvents()
       // A compaction ran: at least one checkpoint landed on the surface.
       const checkpoints = events.filter(
@@ -347,6 +352,7 @@ describe('token pressure after loop-admitted system prompts', () => {
         prompt = nextPrompt
         agent.followup(createUserMessage({ content: [{ type: 'text', text: 'question' }], source: { kind: 'user' } }))
         await agent.whenIdle()
+        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
           type: 'turn/end', data: { reason: { kind: 'completed' } },
         })
@@ -354,11 +360,13 @@ describe('token pressure after loop-admitted system prompts', () => {
         expect(measured.baseline).toEqual({ kind: 'usage', tokens: 1110, usage })
         expect(measured.surfaceDeltaTokens).toBe(0)
         expect(measured.totalTokens).toBe(1110)
+        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         const replay = Session.create(SessionId('prompt-pressure-replay'), agent.session.snapshotEvents())
         expect(ctx.tokenMeter.measure(replay)).toMatchObject({
           baseline: measured.baseline, surfaceDeltaTokens: 0, totalTokens: 1110, nodes: measured.nodes,
         })
       }
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const events = agent.session.snapshotEvents()
       const prompts = events.filter(event => event.type === 'system/message')
       expect(prompts[0]?.surfaceOp).toBe('append')
@@ -428,6 +436,7 @@ describe('context-overflow recovery across the real loop and compaction-basic',
         expect(retry).toContain('RECOVERY CHECKPOINT')
         expect(retry).not.toContain('OLD HISTORY SENTINEL')
 
+        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         const events = agent.session.snapshotEvents()
         const stepStart = events.find(event =>
           event.type === 'step/start' && event.data.turn === 3 && event.data.step === 1,
@@ -490,10 +499,13 @@ describe('context-overflow recovery across the real loop and compaction-basic',
 
       expect(adapter.conversationRequests).toHaveLength(3)
       expect(adapter.summaryRequests).toHaveLength(1)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().filter(event => event.type === 'llm/retry').map(event => event.data))
         .toEqual([expect.objectContaining({ turn: 3, step: 1, retry: 1, failure: { message: 'temporary provider outage', code: 'SERVER' } })])
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start').slice(-1).map(event => event.data.turn))
         .toEqual([3])
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
         type: 'turn/end',
         data: { reason: { kind: 'completed' } },
diff --git a/packages/compaction/compaction-basic/tests/manual-compaction.spec.ts b/packages/compaction/compaction-basic/tests/manual-compaction.spec.ts
index 9a118cd5a9..daef651acd 100644
--- a/packages/compaction/compaction-basic/tests/manual-compaction.spec.ts
+++ b/packages/compaction/compaction-basic/tests/manual-compaction.spec.ts
@@ -233,6 +233,7 @@ function detachedService(): { ctx: Context; compact: GatedCompactionEngine; flus
 }
 
 function compactEvents(session: Session): SessionEvent[] {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return session.snapshotEvents().filter(event => event.type.startsWith('compaction/'))
 }
 
@@ -295,13 +296,16 @@ describe('compactNow through the real loop', () => {
     const result = await compact.compactNow(agent, SIGNAL)
 
     expect(result).not.toBeNull()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const start = agent.session.snapshotEvents().findLast(event => event.type === 'compaction/start')
     const injected = agent.inbox.nextStep.find(message =>
       message.source.kind === 'plugin' && message.source.plugin === 'test')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = agent.session.snapshotEvents().findLast(event => event.type === 'compaction/end')
     expect(start).toBeDefined()
     expect(injected).toBeDefined()
     expect(end).toBeDefined()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'user/message'
       && event.data.id === injected?.id)).toBe(false)
 
@@ -336,6 +340,7 @@ describe('compactNow through the real loop', () => {
     expect(result).not.toBeNull()
     expect(agent.session.deriveMessages()[0]?.role).toBe('system')
     expect(derivedText(agent.session)[1]).toContain('checkpoint')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'user/message'
       && event.data.source.kind === 'plugin' && event.data.source.plugin === 'listener')).toHaveLength(0)
     const types = compactEvents(agent.session).map(event => event.type)
@@ -356,6 +361,7 @@ describe('compactNow through the real loop', () => {
 
     await agent.whenIdle()
     expect(adapter.requests).toHaveLength(2)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'compaction/start')).toBe(false)
   })
 
@@ -406,13 +412,18 @@ describe('compactNow transaction and failure classification', () => {
     expect(result).not.toBeNull()
     expect(result?.sourceCommandId).toBe(commandId)
     expect(flushes()).toBe(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event => event.type === 'turn/start').at(-1)?.data.turn).toBe(7)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const start = session.snapshotEvents().findLast(event => event.type === 'compaction/start')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const summaryEvent = session.snapshotEvents().findLast(event => event.type === 'compaction/summary')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const checkpoint = session.snapshotEvents().findLast(
       (event): event is SessionEvent<'user/message'> => event.type === 'user/message'
         && isCompactCheckpointSource(event.data.source),
     )
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = session.snapshotEvents().findLast(event => event.type === 'compaction/end')
     const correlated = { compactionId: result?.compactionId, sourceCommandId: commandId }
     expect(start?.data).toEqual({ ...correlated, turn: null })
@@ -443,8 +454,11 @@ describe('compactNow transaction and failure classification', () => {
       compactionId: CompactionId('stale-manual-compaction'),
       turn: null,
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const reloaded = Session.create(SessionId('stale-orphan'), original.snapshotEvents())
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const boundary = reloaded.snapshotEvents().findLast(event => event.type === 'session/end-seed')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const orphan = reloaded.snapshotEvents().find(event => event.type === 'compaction/start')
     const agent = fakeAgent(reloaded, () => () => undefined)
 
@@ -462,6 +476,7 @@ describe('compactNow transaction and failure classification', () => {
     })
     original.append('turn/start', { turn: 3 })
     original.append('turn/end', { turn: 3, reason: { kind: 'interrupted' } })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const reloaded = Session.create(SessionId('reloaded-orphan'), original.snapshotEvents())
     const agent = fakeAgent(reloaded, () => () => undefined)
 
@@ -565,6 +580,7 @@ describe('compactNow transaction and failure classification', () => {
     expect(session.surface.replaceGeneration).toBe(generation + 1)
     expect(session.surface.nodes).not.toContain(head)
     expect(compactEvents(session).map(event => event.type)).toEqual(['compaction/start', 'compaction/end'])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'user/message'
       && isCompactCheckpointSource(event.data.source))).toBe(false)
   })
@@ -584,6 +600,7 @@ describe('compactNow transaction and failure classification', () => {
     expect(causeOf(error).message).toBe('boundary rejected')
     vi.restoreAllMocks()
     expect(flushes()).toBe(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().findLast(event => event.type.startsWith('compaction/'))?.type)
       .toBe('compaction/summary')
     expect(compactEvents(session).filter(event => event.type === 'compaction/start')).toHaveLength(1)
@@ -650,6 +667,7 @@ describe('compactNow transaction and failure classification', () => {
     vi.restoreAllMocks()
     expect(error.code).toBe('commit')
     expect(released).toBe(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = session.snapshotEvents().findLast(event => event.type === 'compaction/end')
     expect(end?.type === 'compaction/end' && end.data.error).toContain('summary record rejected')
     expect(end?.type === 'compaction/end' && end.data.turn).toBeNull()
@@ -686,7 +704,9 @@ describe('compactNow transaction and failure classification', () => {
     const result = await compact.compactNow(agent, SIGNAL)
 
     expect(result).not.toBeNull()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'turn/start')).toBe(false)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().find(event => event.type === 'compaction/start')?.data)
       .toEqual({ compactionId: result?.compactionId, turn: null })
   })
@@ -699,8 +719,11 @@ describe('compactNow transaction and failure classification', () => {
 
     expect((await rejection(compact.compactNow(agent, SIGNAL))).code).toBe('persistence')
     vi.restoreAllMocks()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'compaction/summary')).toBe(true)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const start = session.snapshotEvents().findLast(event => event.type === 'compaction/start')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = session.snapshotEvents().findLast(event => event.type === 'compaction/end')
     expect(end?.data).toEqual({ compactionId: start?.data.compactionId, turn: null })
   })
@@ -717,6 +740,7 @@ describe('compactNow transaction and failure classification', () => {
       const reserve = vi.fn(() => testCase.release)
       const measure = vi.spyOn(ctx.tokenMeter, 'measure')
       const agent = fakeAgent(testCase.session, reserve)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const before = testCase.session.snapshotEvents()
       const reason = Object.freeze({ kind: 'cancelled', case: testCase.name })
       const controller = new AbortController()
@@ -732,6 +756,7 @@ describe('compactNow transaction and failure classification', () => {
       expect(reserve).not.toHaveBeenCalled()
       expect(measure).not.toHaveBeenCalled()
       expect(compact.calls).toHaveLength(0)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(testCase.session.snapshotEvents()).toEqual(before)
       vi.restoreAllMocks()
     }
@@ -781,6 +806,7 @@ describe('compactNow transaction and failure classification', () => {
 
     await expect(compact.compactNow(agent, controller.signal)).rejects.toBe(reason)
     expect(compactEvents(session).map(event => event.type)).toEqual(['compaction/start', 'compaction/end'])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'compaction/summary')).toBe(false)
   })
 
@@ -825,6 +851,7 @@ describe('compactNow transaction and failure classification', () => {
 
     await compact.compactNow(agent, SIGNAL)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const summary = session.snapshotEvents().find(event => event.type === 'compaction/summary')
     expect(summary?.type === 'compaction/summary' && summary.data.rawOutput).toEqual(compact.rawOutput)
     expect(summary?.type === 'compaction/summary' && summary.data.usage).toEqual(compact.usage)
@@ -840,7 +867,9 @@ describe('compactNow transaction and failure classification', () => {
 
     await compact.compactNow(agent, SIGNAL)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const start = session.snapshotEvents().findLast(event => event.type === 'compaction/start')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = session.snapshotEvents().findLast(event => event.type === 'compaction/end')
     expect(start).toBeDefined()
     expect(end).toBeDefined()
diff --git a/packages/compaction/compaction-tool-result-pruner/src/index.ts b/packages/compaction/compaction-tool-result-pruner/src/index.ts
index 18c752d8f1..6d8ef92298 100644
--- a/packages/compaction/compaction-tool-result-pruner/src/index.ts
+++ b/packages/compaction/compaction-tool-result-pruner/src/index.ts
@@ -136,6 +136,7 @@ export class ToolResultPruner extends Service {
   pruneSession(session: Session): PruneResult {
     const candidates: SnapshotCandidate[] = []
     for (const seq of [...session.surface.nodes]) {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const event = session.eventAt(seq)
       /* v8 ignore next -- surface seqs are validated contiguous log references. */
       if (event?.type === 'tool/result') candidates.push({ seq, event })
diff --git a/packages/compaction/compaction-tool-result-pruner/tests/tool-result-pruner.spec.ts b/packages/compaction/compaction-tool-result-pruner/tests/tool-result-pruner.spec.ts
index a09d0a3c53..7bcbd0ed62 100644
--- a/packages/compaction/compaction-tool-result-pruner/tests/tool-result-pruner.spec.ts
+++ b/packages/compaction/compaction-tool-result-pruner/tests/tool-result-pruner.spec.ts
@@ -186,7 +186,9 @@ describe('ToolResultPruner session transaction', () => {
     expect(entry).toMatchObject({ originalSeq, callId: ToolCallId('one'), charsBefore: 100 })
     expect(entry.charsAfter).toBeLessThanOrEqual(50)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const original = session.snapshotEvents()[originalSeq]!
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const replacement = session.snapshotEvents()[entry.replacementSeq]! as SurfaceEvent
     expect(original).toMatchObject({
       type: 'tool/result',
@@ -221,6 +223,7 @@ describe('ToolResultPruner session transaction', () => {
     // Shadow-price protocol: the metering event sits directly before the
     // replacement and prices the shadowed node with the shared estimator.
     if (original.type !== 'tool/result') throw new Error('original is not a tool/result')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()[entry.replacementSeq - 1]).toMatchObject({
       type: 'compaction/prune',
       data: {
@@ -256,6 +259,7 @@ describe('ToolResultPruner session transaction', () => {
       turn: 2,
     })
     service().pruneSession(session)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const replay = Session.create(session.id, session.snapshotEvents())
     expect(replay.deriveMessages()).toEqual(session.deriveMessages())
     expect(replay.surface.replaceGeneration).toBe(session.surface.replaceGeneration)
diff --git a/packages/compaction/compaction/src/invariant.ts b/packages/compaction/compaction/src/invariant.ts
index ce19a6670f..5682f066db 100644
--- a/packages/compaction/compaction/src/invariant.ts
+++ b/packages/compaction/compaction/src/invariant.ts
@@ -298,6 +298,7 @@ const install: InvariantInstaller = Object.assign((ctx: Context, fail: Invariant
       surface: new SurfaceManager(surfaceEvents),
     }
     traces.set(session, trace)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = session.snapshotEvents()
     const staleOrphanStartSeqs = inheritedOrphanStartSeqs(events)
     for (const event of events) {
diff --git a/packages/compaction/compaction/src/tool-pairing.ts b/packages/compaction/compaction/src/tool-pairing.ts
index 56ec6a2368..ca070851ab 100644
--- a/packages/compaction/compaction/src/tool-pairing.ts
+++ b/packages/compaction/compaction/src/tool-pairing.ts
@@ -50,6 +50,7 @@ function extendCache(
   const pendingCuts: boolean[] = []
   let inProgressToolCalls = cache.inProgressToolCalls
   for (const seq of tail) {
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const event = session.eventAt(seq)
     if (event === undefined || event.seq !== seq) {
       throw new Error(`tool-pairing balance: surface seq ${seq} has no matching session event (corrupt surface)`)
diff --git a/packages/compaction/compaction/tests/compaction.spec.ts b/packages/compaction/compaction/tests/compaction.spec.ts
index 350d4b8308..887362b18b 100644
--- a/packages/compaction/compaction/tests/compaction.spec.ts
+++ b/packages/compaction/compaction/tests/compaction.spec.ts
@@ -131,6 +131,7 @@ describe('CompactionEngine seam', () => {
 
     const result = await svc.compactRegion(original.seq, original.seq, stubAgent(session, 'm'))
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const startEvent = session.snapshotEvents().find(e => e.type === 'compaction/start')
     expect(startEvent).toBeDefined()
     // Log-only: the compiler rejects surfaceOp on compaction/* (not a SurfaceEventType);
@@ -142,12 +143,14 @@ describe('CompactionEngine seam', () => {
     expect(result.endSeq).toBeGreaterThan(result.summarySeq)
     expect(result.shadowedRange).toEqual({ start: original.seq, end: original.seq })
     expect(result.shadowedSeqs).toEqual([original.seq])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const checkpoint = session.snapshotEvents().find(event => event.type === 'user/message'
       && isCompactCheckpointSource(event.data.source))
     expect(checkpoint?.type === 'user/message' && checkpoint.data.source)
       .toEqual(compactCheckpointSource(result.compactionId))
     expect(isCompactCheckpointSource({ kind: 'plugin', plugin: 'other' })).toBe(false)
     expect(isCompactCheckpointSource({ kind: 'user' })).toBe(false)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(e => e.type.startsWith('compaction/')).map(e => e.type))
       .toEqual(['compaction/start', 'compaction/summary', 'compaction/end'])
   })
diff --git a/packages/compaction/compaction/tests/invariant.spec.ts b/packages/compaction/compaction/tests/invariant.spec.ts
index ff49a3400e..314ed70ba1 100644
--- a/packages/compaction/compaction/tests/invariant.spec.ts
+++ b/packages/compaction/compaction/tests/invariant.spec.ts
@@ -134,8 +134,10 @@ describe('compaction invariants', () => {
     const source = Session.create(SessionId('stale-compaction-source'))
     source.append('compaction/start', { compactionId: TEST_COMPACTION_ID, turn: null })
     const replayed = ctx.sessions.create(SessionId('stale-compaction-replay'), {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       seed: source.snapshotEvents(),
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(replayed.snapshotEvents().map(event => event.type))
       .toEqual(['compaction/start', 'session/end-seed'])
 
@@ -155,8 +157,10 @@ describe('compaction invariants', () => {
     startTurn(source)
     source.append('compaction/start', { compactionId: TEST_COMPACTION_ID, turn: 1 })
     const replayed = ctx.sessions.create(SessionId('stale-numbered-compaction-replay'), {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       seed: source.snapshotEvents(),
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(replayed.snapshotEvents().map(event => event.type))
       .toEqual(['turn/start', 'compaction/start', 'session/end-seed'])
 
@@ -177,8 +181,10 @@ describe('compaction invariants', () => {
     startTurn(source)
     source.append('turn/end', { turn: 1, reason: { kind: 'interrupted' } })
     const replayed = ctx.sessions.create(SessionId('stale-repaired-compaction-replay'), {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       seed: source.snapshotEvents(),
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(replayed.snapshotEvents().map(event => event.type)).toEqual([
       'compaction/start',
       'turn/start',
@@ -204,8 +210,10 @@ describe('compaction invariants', () => {
     source.append('turn/end', { turn: 1, reason: { kind: 'interrupted' } })
     source.append('compaction/end', { compactionId: TEST_COMPACTION_ID, turn: null, error: 'failed after crossing turn' })
     const replayed = ctx.sessions.create(SessionId('closed-nested-compaction-replay'), {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       seed: source.snapshotEvents(),
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(replayed.snapshotEvents().at(-1)?.type).toBe('session/end-seed')
 
     await ctx.plugin(InvariantRegistry)
diff --git a/packages/compaction/compaction/tests/tool-pairing.spec.ts b/packages/compaction/compaction/tests/tool-pairing.spec.ts
index a5694d1514..a3dbb7e88c 100644
--- a/packages/compaction/compaction/tests/tool-pairing.spec.ts
+++ b/packages/compaction/compaction/tests/tool-pairing.spec.ts
@@ -7,6 +7,7 @@ import type { SessionEvent, SessionSeq as SessionSeqType } from '@deepseek-ai/ds
 const SURFACE = { surfaceOp: 'append' as const }
 
 function seqOf(session: Session, type: SessionEvent['type'], nth = 0): SessionSeqType {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return session.snapshotEvents().filter(event => event.type === type)[nth]!.seq
 }
 
diff --git a/packages/context/agent-instructions/src/index.ts b/packages/context/agent-instructions/src/index.ts
index f614926241..f775c30a9c 100644
--- a/packages/context/agent-instructions/src/index.ts
+++ b/packages/context/agent-instructions/src/index.ts
@@ -53,6 +53,7 @@ function visibleBaselineSource(
     }
   }
   for (const seq of agent.session.surface.nodes.toReversed()) {
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const event = agent.session.eventAt(seq)
     if (event?.type === 'user/message'
       && event.data.source.kind === 'agent-instructions'
@@ -228,6 +229,7 @@ export function apply(ctx: Context, config: Config): void {
     const alreadySupplied = desired !== undefined && (
       claimed.some(message => sameContextPayload(message, desired))
       || agent.session.surface.nodes.some((seq) => {
+        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         const event = agent.session.eventAt(seq)
         return event?.type === 'user/message' && sameContextPayload(event.data, desired)
       })
diff --git a/packages/context/agent-instructions/src/state.ts b/packages/context/agent-instructions/src/state.ts
index fb25e262f9..8a66f7d02f 100644
--- a/packages/context/agent-instructions/src/state.ts
+++ b/packages/context/agent-instructions/src/state.ts
@@ -139,6 +139,7 @@ function visibleInstructionChanges(
 ): Map<string, AgentInstructionChange> {
   const visible = new Map<string, AgentInstructionChange>()
   for (const seq of agent.session.surface.nodes) {
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const event = agent.session.eventAt(seq)
     if (event?.type !== 'user/message' || !isWorkspaceContextSource(event.data.source)) continue
     const changes = workspaceInstructionChanges(event.data.source)
diff --git a/packages/context/agent-instructions/tests/agent-instructions.e2e.ts b/packages/context/agent-instructions/tests/agent-instructions.e2e.ts
index 7e35bdee21..2c256150c8 100644
--- a/packages/context/agent-instructions/tests/agent-instructions.e2e.ts
+++ b/packages/context/agent-instructions/tests/agent-instructions.e2e.ts
@@ -77,6 +77,7 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('workspace context e2e: real mode
     live.agent.followup(createUserMessage({ content: [{ type: 'text', text: 'Workspace context handshake?' }], source: { kind: 'user' } }))
     await waitForIdle(live.ctx, live.agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(finalText(live.agent.session.snapshotEvents())).toContain(PROBE)
   }, 120_000)
 
@@ -89,6 +90,7 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('workspace context e2e: real mode
     live.agent.followup(createUserMessage({ content: [{ type: 'text', text: 'Use the read tool to inspect pkg/deep/file.txt. After reading it, answer: nested instruction handshake?' }], source: { kind: 'user' } }))
     await waitForIdle(live.ctx, live.agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(finalText(live.agent.session.snapshotEvents())).toContain(NESTED_PROBE)
   }, 120_000)
 
@@ -102,6 +104,7 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('workspace context e2e: real mode
     live.agent.followup(createUserMessage({ content: [{ type: 'text', text: 'You must use the read tool to inspect trigger.txt. After reading it, answer: updated workspace context handshake?' }], source: { kind: 'user' } }))
     await waitForIdle(live.ctx, live.agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = live.agent.session.snapshotEvents()
     const update = events.find(event => event.type === 'user/message'
       && event.data.source.kind === 'agent-instructions'
diff --git a/packages/context/agent-instructions/tests/agent-instructions.spec.ts b/packages/context/agent-instructions/tests/agent-instructions.spec.ts
index d477cf666e..259a419bb4 100644
--- a/packages/context/agent-instructions/tests/agent-instructions.spec.ts
+++ b/packages/context/agent-instructions/tests/agent-instructions.spec.ts
@@ -277,6 +277,7 @@ async function syncedWorkspaceContext(ctx: Context, agent: Agent): Promise<UserM
 }
 
 function baselineEvents(agent: Agent): SessionEvent[] {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return agent.session.snapshotEvents().filter(event =>
     event.type === 'user/message'
     && event.data.source.kind === 'agent-instructions'
@@ -1127,6 +1128,7 @@ describe('workspace context request injection', () => {
       const second = await composeBaselinePrefix(ctx, agent)
 
       expect(second).toEqual(first)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().filter(event => event.type === 'user/message' && event.data.source.kind !== 'user')).toHaveLength(1)
       expect(derivedText(agent)).toContain('repo rule')
     } finally {
@@ -1146,13 +1148,16 @@ describe('workspace context request injection', () => {
       const original = await stubAgent(root)
       await composeBaselinePrefix(ctx, original)
 
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const firstResume = await stubAgent(root, original.session.snapshotEvents())
       await composeBaselinePrefix(ctx, firstResume)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const secondResume = await stubAgent(root, firstResume.session.snapshotEvents())
       await composeBaselinePrefix(ctx, secondResume)
 
       expect(baselineEvents(firstResume)).toHaveLength(1)
       expect(baselineEvents(secondResume)).toHaveLength(1)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(secondResume.session.snapshotEvents().filter(event => event.type === 'user/message'
         && event.data.source.kind === 'agent-instructions')).toHaveLength(1)
     } finally {
@@ -1175,10 +1180,12 @@ describe('workspace context request injection', () => {
       await composeBaselinePrefix(ctx, original)
 
       fs.throwOnStat.add(join(root, 'AGENTS.md'))
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const resumed = await stubAgent(root, original.session.snapshotEvents())
       await composeBaselinePrefix(ctx, resumed)
 
       expect(baselineEvents(resumed)).toHaveLength(1)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(resumed.session.snapshotEvents().filter(event => event.type === 'user/message'
         && event.data.source.kind === 'agent-instructions')).toHaveLength(1)
     } finally {
@@ -1201,12 +1208,15 @@ describe('workspace context request injection', () => {
       const original = await stubAgent(cwd)
       await composeBaselinePrefix(ctx, original)
 
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const firstResume = await stubAgent(cwd, original.session.snapshotEvents())
       await composeBaselinePrefix(ctx, firstResume)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const secondResume = await stubAgent(cwd, firstResume.session.snapshotEvents())
       await composeBaselinePrefix(ctx, secondResume)
 
       expect(baselineEvents(secondResume)).toHaveLength(1)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(secondResume.session.snapshotEvents().filter(event => event.type === 'user/message'
         && event.data.source.kind === 'agent-instructions')).toHaveLength(1)
       expect(blocksText(secondResume.session.deriveMessages()[0]?.content)).toContain('omitted AGENTS.md')
@@ -1231,10 +1241,12 @@ describe('workspace context request injection', () => {
       await composeBaselinePrefix(ctx, original)
 
       await write(join(cwd, 'AGENTS.md'), 'package rule')
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const resumed = await stubAgent(cwd, original.session.snapshotEvents())
       await composeBaselinePrefix(ctx, resumed)
 
       expect(baselineEvents(resumed)).toHaveLength(1)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const update = resumed.session.snapshotEvents().findLast(event => event.type === 'user/message'
         && event.data.source.kind === 'agent-instructions'
         && event.data.source.baseline !== true)
@@ -1268,6 +1280,7 @@ describe('workspace context request injection', () => {
         maxBytes: 65536,
         instructionFileCandidates: ['CLAUDE.md', 'AGENTS.md'],
       })
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const resumed = await stubAgent(root, original.session.snapshotEvents())
       await composeBaselinePrefix(resumedCtx, resumed)
 
@@ -1287,6 +1300,7 @@ describe('workspace context request injection', () => {
         : [])
       expect(new Set(baselineIdentities).size).toBe(2)
 
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const repeated = await stubAgent(root, resumed.session.snapshotEvents())
       await composeBaselinePrefix(resumedCtx, repeated)
       expect(baselineEvents(repeated)).toHaveLength(2)
@@ -1321,6 +1335,7 @@ describe('workspace context request injection', () => {
         maxBytes: 65536,
         instructionFileCandidates: ['CLAUDE.md'],
       })
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const claudeResume = await stubAgent(root, original.session.snapshotEvents())
       await composeBaselinePrefix(claudeCtx, claudeResume)
       const claudeBaseline = baselineEvents(claudeResume).at(-1)
@@ -1336,6 +1351,7 @@ describe('workspace context request injection', () => {
         maxBytes: 65536,
         instructionFileCandidates: ['AGENTS.md'],
       })
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const restored = await stubAgent(root, claudeResume.session.snapshotEvents())
       await composeBaselinePrefix(restoredCtx, restored)
       const restoredBaseline = baselineEvents(restored).at(-1)
@@ -1371,6 +1387,7 @@ describe('workspace context request injection', () => {
         maxBytes: 65536,
         instructionFileCandidates: ['POLICY.md'],
       })
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const resumed = await stubAgent(root, original.session.snapshotEvents())
       await composeBaselinePrefix(resumedCtx, resumed)
 
@@ -1385,6 +1402,7 @@ describe('workspace context request injection', () => {
         { action: 'remove', scope: sk('.', 'AGENTS.md'), path: 'AGENTS.md' },
       ])
 
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const repeated = await stubAgent(root, resumed.session.snapshotEvents())
       await composeBaselinePrefix(resumedCtx, repeated)
       expect(baselineEvents(repeated)).toHaveLength(2)
@@ -1415,6 +1433,7 @@ describe('workspace context request injection', () => {
 
       await fiber.dispose()
       await mountWorkspaceContextPlugin(ctx, { dshHome: home, maxBytes: 65536 })
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const resumed = await stubAgent(root, original.session.snapshotEvents())
       agentEvents(ctx, resumed).emit('agent/session-start', { source: 'resume' })
       const claimed = claimInbox(resumed, 'next-step')
@@ -1431,6 +1450,7 @@ describe('workspace context request injection', () => {
 
       expect(decision.messages.map(message => message.id)).toEqual([inserted?.id])
       expect(resumed.inbox.nextStep).toEqual([])
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(resumed.session.snapshotEvents().filter(event => event.type === 'agent/inbox/spliced'
         && event.data.inserted.some(message => message.source.kind === 'agent-instructions'
           && message.source.baseline === true))).toHaveLength(1)
@@ -1461,6 +1481,7 @@ describe('workspace context request injection', () => {
       await write(join(root, 'AGENTS.md'), 'new repo rule')
       await fiber.dispose()
       await mountWorkspaceContextPlugin(ctx, { dshHome: home, maxBytes: 65536 })
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const resumed = await stubAgent(root, original.session.snapshotEvents())
       agentEvents(ctx, resumed).emit('agent/session-start', { source: 'resume' })
       const staleClaim = claimInbox(resumed, 'next-step')
@@ -1514,6 +1535,7 @@ describe('workspace context request injection', () => {
       await originalCtx.fiber.dispose()
       if (provideFs) await resumedCtx.plugin(LocalFileSystem, { cwd: '/' })
       await mountWorkspaceContextPlugin(resumedCtx, { dshHome: home, maxBytes })
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const resumed = await stubAgent(root, original.session.snapshotEvents())
       agentEvents(resumedCtx, resumed).emit('agent/session-start', { source: 'resume' })
       const claimed = claimInbox(resumed, 'next-step')
@@ -1555,6 +1577,7 @@ describe('workspace context request injection', () => {
 
       await composeBaselinePrefix(ctx, agent)
 
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const removal = agent.session.snapshotEvents().find(event => event.type === 'user/message'
         && event.data.source.kind === 'agent-instructions'
         && event.data.source.changes.some(change => change.action === 'remove'))
@@ -1589,6 +1612,7 @@ describe('workspace context request injection', () => {
 
       await composeBaselinePrefix(ctx, agent)
 
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const workspaceEvents = agent.session.snapshotEvents().filter(event => event.type === 'user/message'
         && event.data.source.kind === 'agent-instructions')
       expect(workspaceEvents).toHaveLength(2)
@@ -1598,6 +1622,7 @@ describe('workspace context request injection', () => {
       expect(baselineEvents(agent)).toHaveLength(1)
 
       await composeBaselinePrefix(ctx, agent)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().filter(event => event.type === 'user/message'
         && event.data.source.kind === 'agent-instructions')).toHaveLength(2)
     } finally {
@@ -1821,6 +1846,7 @@ describe('workspace context request injection', () => {
       // The first resumed pre-step retains the compatible visible baseline and
       // appends only the offline file transition needed to reach current state.
       await write(join(root, 'AGENTS.md'), 'new root rule after offline edit')
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const resumed = await stubAgent(root, original.session.snapshotEvents())
 
       // Resume announces its lifecycle start before the first step.
@@ -1829,6 +1855,7 @@ describe('workspace context request injection', () => {
 
       const baselines = baselineEvents(resumed)
       expect(baselines).toHaveLength(1)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const latest = resumed.session.snapshotEvents().findLast(event =>
         event.type === 'user/message' && event.data.source.kind === 'agent-instructions')
       expect(latest?.type === 'user/message' ? latest.data.source : undefined).toMatchObject({
@@ -2010,6 +2037,7 @@ describe('workspace context request injection', () => {
 
       await composeBaselinePrefix(ctx, agent)
 
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const contexts = agent.session.snapshotEvents().filter(event =>
         event.type === 'user/message' && event.data.source.kind !== 'user',
       )
@@ -2651,6 +2679,7 @@ describe('dynamic nested workspace context injection', () => {
 
       agent.followup(createUserMessage({ content: [{ type: 'text', text: 'read and abort' }], source: { kind: 'user' } }))
       await agent.whenIdle()
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().filter(event =>
         event.type === 'user/message' && event.data.source.kind !== 'user',
       )).toHaveLength(0)
@@ -2658,6 +2687,7 @@ describe('dynamic nested workspace context injection', () => {
       agent.followup(createUserMessage({ content: [{ type: 'text', text: 'retry the read' }], source: { kind: 'user' } }))
       await agent.whenIdle()
 
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const contexts = agent.session.snapshotEvents().filter(event => event.type === 'user/message' && event.data.source.kind !== 'user')
       expect(contexts).toHaveLength(1)
       expect(adapter.requests).toHaveLength(3)
@@ -3633,6 +3663,7 @@ describe('dynamic nested workspace context injection', () => {
         agent,
       })
       await appendAdditionalContexts(ctx, agent)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const resumed = await stubAgent(root, agent.session.snapshotEvents())
 
       const afterResume = await ctx.tools.execute({
@@ -3667,10 +3698,12 @@ describe('dynamic nested workspace context injection', () => {
       })
       await appendAdditionalContexts(ctx, original)
       await write(join(root, 'pkg/AGENTS.md'), 'new nested rule after resume')
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const resumed = await stubAgent(root, original.session.snapshotEvents())
 
       await composeBaselinePrefix(ctx, resumed)
 
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const update = resumed.session.snapshotEvents().findLast(event => event.type === 'user/message' && event.data.source.kind !== 'user')
       expect(update?.type === 'user/message' && update.data.source).toMatchObject({
         changes: [{ action: 'replace', scope: sk('pkg', 'AGENTS.md'), path: join('pkg', 'AGENTS.md') }],
@@ -4701,6 +4734,7 @@ describe('workspace context inbox synchronization', () => {
         callId: ToolCallId('recover-pending-a'), name: 'read', arguments: { file_path: join('a', 'file.txt') }, agent: original,
       })
       await syncWorkspaceContext(ctx, original)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const resumed = await stubAgent(root, original.session.snapshotEvents())
 
       await ctx.tools.execute({
diff --git a/packages/context/session-reference/tests/loader-composition.spec.ts b/packages/context/session-reference/tests/loader-composition.spec.ts
index c680e393ca..624b28de33 100644
--- a/packages/context/session-reference/tests/loader-composition.spec.ts
+++ b/packages/context/session-reference/tests/loader-composition.spec.ts
@@ -134,6 +134,7 @@ describe('session-reference real Loader composition', () => {
     ctx.sessions.get(SessionId('reference-source'))!.append('user/message', createUserMessage({
       content: [{ type: 'text', text: 'LATER_SOURCE_MUTATION' }], source: { kind: 'user' },
     }), { surfaceOp: 'append' })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(Session.create(SessionId('replayed-target'), target.snapshotEvents()).deriveMessages()).toEqual(captured)
     expect(await readFile(notice.fullSnapshot.locator, 'utf8')).toBe(transcript)
   })
diff --git a/packages/context/session-reference/tests/session-reference.spec.ts b/packages/context/session-reference/tests/session-reference.spec.ts
index dc2caa5067..cbb14be78d 100644
--- a/packages/context/session-reference/tests/session-reference.spec.ts
+++ b/packages/context/session-reference/tests/session-reference.spec.ts
@@ -322,6 +322,7 @@ describe('session reference spill outcomes', () => {
       const target = ctx.sessions.create(SessionId('target'))
       const source = ctx.sessions.create(SessionId('source'))
       for (const text of texts) appendText(source, text)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const captured = source.snapshotEvents().at(-1)?.seq
       const read = vi.spyOn(ctx.sessionQuery, 'readSurface')
       const store = ctx.spillStore as RecordingSpill
@@ -371,6 +372,7 @@ describe('session reference spill outcomes', () => {
       const context = result.additionalContext!
       target.append('user/message', context, { surfaceOp: 'append' })
       for (const detach of detachSources) detach()
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const replayed = Session.create(SessionId('replayed'), target.snapshotEvents()).deriveMessages()
       expect(replayed).toEqual(target.deriveMessages())
       expect(JSON.stringify(replayed)).toContain('memory:session-reference-1.txt')
@@ -451,6 +453,7 @@ describe('session reference spill outcomes', () => {
       finish.resolve(undefined)
       await rejected
       await settled.promise
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(target.snapshotEvents().filter(event => event.type === 'user/message')).toEqual([])
     } finally { finish.resolve(undefined); await ctx.fiber.dispose() }
   })
@@ -1198,6 +1201,7 @@ describe('session reference discovery and preparation', () => {
     expect(JSON.stringify(before)).toContain('durable referenced fact')
     expect(JSON.stringify(before)).toContain('use @source')
     expect(JSON.stringify(before)).not.toContain('later source mutation')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(Session.create(SessionId('replayed-target'), target.snapshotEvents()).deriveMessages()).toEqual(before)
   })
 
diff --git a/packages/context/time-context/src/index.ts b/packages/context/time-context/src/index.ts
index 02cf81d738..f626342546 100644
--- a/packages/context/time-context/src/index.ts
+++ b/packages/context/time-context/src/index.ts
@@ -80,6 +80,7 @@ function formatDuration(elapsedMs: number): string {
 function requestMessages(agent: Agent, turn: number, proposed: readonly UserMessage[]): UserMessage[] {
   const entered: UserMessage[] = []
   for (let seq = agent.session.seq - 1; seq >= 0; seq -= 1) {
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const event = agent.session.eventAt(SessionSeq(seq))
     if (event?.type === 'turn/start' && event.data.turn === turn) {
       return [...entered.reverse(), ...proposed]
diff --git a/packages/context/time-context/src/invariant.ts b/packages/context/time-context/src/invariant.ts
index 90ec5f2ff2..2fa686a4f4 100644
--- a/packages/context/time-context/src/invariant.ts
+++ b/packages/context/time-context/src/invariant.ts
@@ -161,6 +161,7 @@ function validateReading(
 /* jscpd:ignore-start -- package companions share replay and dispatch plumbing */
 /** Validate all package-owned readings already present in one session. */
 function validateSession(session: Session, fail: InvariantFailure): void {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   const events = session.snapshotEvents()
   for (const [index, event] of events.entries()) {
     if (event.type !== 'user/message'
@@ -180,6 +181,7 @@ const install: InvariantInstaller = Object.assign((ctx: Context, fail: Invariant
     if (event.type !== 'user/message'
       || event.data.source.kind !== 'plugin'
       || event.data.source.plugin !== SOURCE_NAME) return
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     validateReading(session.snapshotEvents(), event, fail)
   }, { global: true })
 }, { inject: ['sessions'] })
diff --git a/packages/context/time-context/tests/time-context.spec.ts b/packages/context/time-context/tests/time-context.spec.ts
index 52700e6d62..16e9a52a89 100644
--- a/packages/context/time-context/tests/time-context.spec.ts
+++ b/packages/context/time-context/tests/time-context.spec.ts
@@ -68,6 +68,7 @@ function openMessageTurn(session: Session, turn: number, clientTimeZone?: string
 
 function contextTexts(session: Session): string[] {
   const texts: string[] = []
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   for (const event of session.snapshotEvents()) {
     if (event.type === 'user/message'
       && event.data.source.kind === 'plugin'
@@ -168,6 +169,7 @@ describe('durable step context', () => {
       + 'Browser time zone for this request: Asia/Shanghai. Interpret otherwise-unqualified dates and times in this zone.\n'
       + 'Elapsed since the preceding model-visible message: 1d 1h 1m 1s.',
     ])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const event = session.snapshotEvents().at(-1)
     expect(event?.type).toBe('user/message')
     if (event?.type !== 'user/message') throw new Error('missing time context')
@@ -291,7 +293,9 @@ describe('durable step context', () => {
     const original = Session.create(SessionId('seed-source'))
     openMessageTurn(original, 1)
     await fire(ctx, sessionAgent(original), 1, 1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const user = original.snapshotEvents().find(event => event.type === 'user/message' && event.data.source.kind === 'user')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const reading = original.snapshotEvents().find(event => event.type === 'user/message' && event.data.source.kind === 'plugin')
     if (user === undefined || reading === undefined) throw new Error('missing source surface events')
     original.append('user/message', createUserMessage({
@@ -304,14 +308,17 @@ describe('durable step context', () => {
     original.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
     expect(JSON.stringify(original.deriveMessages())).not.toContain('Time sampled while preparing')
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const resumed = Session.create(SessionId('resumed'), original.snapshotEvents())
     const resumedAgent = sessionAgent(resumed)
     vi.setSystemTime(BASE + 999)
     openMessageTurn(resumed, 2)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const beforeSkip = resumed.snapshotEvents().length
 
     await fire(ctx, resumedAgent, 2, 1)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(resumed.snapshotEvents()).toHaveLength(beforeSkip)
     expect(contextTexts(resumed)).toHaveLength(1)
 
@@ -334,6 +341,7 @@ describe('durable step context', () => {
 
     vi.setSystemTime(BASE + 500)
     openMessageTurn(first, 2)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const beforeSkip = first.snapshotEvents().length
     await fire(ctx, firstAgent, 2, 1)
 
@@ -341,6 +349,7 @@ describe('durable step context', () => {
     openMessageTurn(independent, 1)
     await fire(ctx, sessionAgent(independent, 'independent-agent'), 1, 1)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(first.snapshotEvents()).toHaveLength(beforeSkip)
     expect(contextTexts(first)).toHaveLength(1)
     expect(contextTexts(independent)).toHaveLength(1)
@@ -460,6 +469,7 @@ describe('real agent-loop request history', () => {
 
     expect(contextTexts(agent.session)).toHaveLength(0)
     expect(adapter.requests).toHaveLength(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'step/start')).toBe(false)
     await ctx.fiber.dispose()
   })
@@ -482,8 +492,10 @@ describe('real agent-loop request history', () => {
     await agent.whenIdle()
 
     expect(adapter.requests).toHaveLength(2)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const contexts = agent.session.snapshotEvents().filter(
       (event): event is SessionEvent<'user/message'> => event.type === 'user/message' && event.data.source.kind === 'plugin')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const starts = agent.session.snapshotEvents().filter(event => event.type === 'step/start')
     expect(contexts).toHaveLength(adapter.requests.length)
     expect(starts).toHaveLength(adapter.requests.length)
@@ -508,6 +520,7 @@ describe('real agent-loop request history', () => {
       expect(request.messages[0]?.role).toBe('system')
       expect(JSON.stringify(request.messages[0])).not.toContain('Time sampled while preparing')
     }
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const systemNodes = agent.session.snapshotEvents().filter(event => event.type === 'system/message')
     expect(JSON.stringify(systemNodes)).not.toContain('Time sampled while preparing')
     await ctx.fiber.dispose()
diff --git a/packages/context/tmux-context/tests/tmux-context.spec.ts b/packages/context/tmux-context/tests/tmux-context.spec.ts
index bc9f9f0ed5..ef1b0e930c 100644
--- a/packages/context/tmux-context/tests/tmux-context.spec.ts
+++ b/packages/context/tmux-context/tests/tmux-context.spec.ts
@@ -123,6 +123,7 @@ function openMessageTurn(session: Session, turn: number): void {
 
 function contextTexts(session: Session): string[] {
   const texts: string[] = []
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   for (const event of session.snapshotEvents()) {
     if (event.type === 'user/message'
       && event.data.source.kind === 'plugin'
@@ -171,6 +172,7 @@ describe('tmux-context injection', () => {
       + 'window active=1, pane active=0, '
       + 'layout d517,270x71,0,0{135x71,0,0,87,134x71,136,0[134x35,136,0,90,134x35,136,36,93]}',
     ])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const event = session.snapshotEvents().at(-1)
     if (event?.type !== 'user/message') throw new Error('missing tmux context')
     // `snapshot` form: one named contribution carrying exactly the reading the
diff --git a/packages/core/agent-loop/src/index.ts b/packages/core/agent-loop/src/index.ts
index aa967f87c0..6c30f04135 100644
--- a/packages/core/agent-loop/src/index.ts
+++ b/packages/core/agent-loop/src/index.ts
@@ -748,6 +748,7 @@ export class AgentLoop extends Service implements AgentFactory {
    */
   private async appendUnstoredSuffix(stored: StoredSession | undefined, session: Session): Promise<void> {
     if (stored === undefined) return
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const suffix = session.snapshotEvents(SessionLogOffset(stored.storedCount))
     if (suffix.length > 0) await stored.handle.append(suffix)
     // Advance by what was stored, not to `session.seq`: an event appended
diff --git a/packages/core/agent-loop/src/invariant.ts b/packages/core/agent-loop/src/invariant.ts
index b1b2cc93c3..3b1c62d081 100644
--- a/packages/core/agent-loop/src/invariant.ts
+++ b/packages/core/agent-loop/src/invariant.ts
@@ -28,6 +28,7 @@ const install: InvariantInstaller = Object.assign((ctx: Context, fail: Invariant
       fail('a loop-built request must carry a frozen messages array')
     }
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = session.snapshotEvents()
     if (!events.some(event => event.type === 'step/start')) {
       return fail('a loop-built request with no step/start in its session log')
diff --git a/packages/core/agent-loop/src/runtime-context.ts b/packages/core/agent-loop/src/runtime-context.ts
index daabf5bc19..af9f3fa640 100644
--- a/packages/core/agent-loop/src/runtime-context.ts
+++ b/packages/core/agent-loop/src/runtime-context.ts
@@ -45,6 +45,7 @@ export interface SystemPromptDecisionInput {
 
 /** Committed events from the newest backward; the restore scans stop at the first match. */
 function eventsNewestFirst(session: Session): readonly SessionEvent[] {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return session.snapshotEvents().toReversed()
 }
 
@@ -63,6 +64,7 @@ export class SystemPromptProjection {
   private systemNodes(): { seq: SessionSeq; text: string | undefined }[] {
     const nodes: { seq: SessionSeq; text: string | undefined }[] = []
     for (const seq of this.session.surface.nodes) {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const event = this.session.eventAt(seq)
       if (event?.type !== 'system/message') continue
       const content = event.data.message.content
diff --git a/packages/core/agent-loop/tests/agent-initiator.spec.ts b/packages/core/agent-loop/tests/agent-initiator.spec.ts
index 0b9d32ec06..f25740593a 100644
--- a/packages/core/agent-loop/tests/agent-initiator.spec.ts
+++ b/packages/core/agent-loop/tests/agent-initiator.spec.ts
@@ -335,6 +335,7 @@ describe('AgentLoop initiator scope', () => {
     }])
     const schema = adapter.requests[0]?.tools?.find(tool => tool.name === 'capability-request')
     expect(JSON.stringify(schema?.parameters)).not.toMatch(/session|harness/i)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const call = handle.agent.session.snapshotEvents().find(event => event.type === 'tool/call')
     expect(call?.type === 'tool/call' ? call.data.arguments : undefined)
       .toBe(JSON.stringify({ path: '/v1/capability' }))
diff --git a/packages/core/agent-loop/tests/agent.spec.ts b/packages/core/agent-loop/tests/agent.spec.ts
index 2ec5bcf01c..1d5ea1ac41 100644
--- a/packages/core/agent-loop/tests/agent.spec.ts
+++ b/packages/core/agent-loop/tests/agent.spec.ts
@@ -35,6 +35,7 @@ describe('Agent', () => {
 
     agent.inject(createUserMessage({ content: [{ type: 'text', text: 'context' }], source: { kind: 'plugin', plugin: 'p' } }))
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().map(event => event.type)).toEqual(['agent/inbox/spliced'])
     expect(agent.status).toBe('idle')
     expect(adapter.requests).toHaveLength(0)
@@ -47,6 +48,7 @@ describe('Agent', () => {
 
     agent.inject(createUserMessage({ content: [{ type: 'text', text: 'empty plugin source' }], source: { kind: 'plugin', plugin: '' } }))
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const injected = agent.session.snapshotEvents().at(-1)
     expect(injected?.type === 'agent/inbox/spliced' && injected.data.inserted[0]?.source)
       .toEqual({ kind: 'plugin', plugin: '' })
@@ -97,6 +99,7 @@ describe('Agent', () => {
     expect(() => {
       agent.inject(createUserMessage({ content: [{ type: 'text', text: 'x', bad: 1n } as never], source: { kind: 'plugin', plugin: 'p' } }))
     }).toThrow(/non-JSON-serializable/)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents()).toHaveLength(0)
   })
 
@@ -108,6 +111,7 @@ describe('Agent', () => {
     agent.steer(createUserMessage({ content: [{ type: 'text', text: 'steer idle' }], source: { kind: 'plugin', plugin: 'test' } }))
     await agent.whenIdle()
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'user/message')).toBe(true)
     expect(adapter.requests).toHaveLength(1)
   })
diff --git a/packages/core/agent-loop/tests/cancel.spec.ts b/packages/core/agent-loop/tests/cancel.spec.ts
index 2b1781083c..00d9339fa6 100644
--- a/packages/core/agent-loop/tests/cancel.spec.ts
+++ b/packages/core/agent-loop/tests/cancel.spec.ts
@@ -50,6 +50,7 @@ function waitForIdle(ctx: Context, agent: Agent): Promise<void> {
 
 /** All user-message texts recorded in the log (to assert what actually ran). */
 function userTexts(agent: Agent): string[] {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return agent.session.snapshotEvents()
     .filter(e => e.type === 'user/message')
     .flatMap(e => e.type === 'user/message' ? e.data.content : [])
@@ -71,6 +72,7 @@ describe('Agent.cancel()', () => {
 
     // The prompt ran: its user message is in the log and one turn completed.
     expect(userTexts(agent)).toEqual(['real prompt'])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'turn/end')).toBe(true)
   })
 
@@ -86,12 +88,14 @@ describe('Agent.cancel()', () => {
     // A waking send starts and claims synchronously, so keepInbox has no
     // pending item to preserve by the time this cancellation runs.
     agent.cancel({ kind: 'user' }, { keepInbox: true })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event =>
       event.type === 'agent/inbox/spliced' && event.data.outcome === 'canceled')).toBe(false)
     await agent.whenIdle()
     expect(agent.inbox.nextTurn).toHaveLength(0)
     expect(userTexts(agent)).toEqual([])
     expect(adapter.requests).toHaveLength(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')?.data.reason)
       .toEqual({ kind: 'aborted', reason: { kind: 'user' } })
 
@@ -146,6 +150,7 @@ describe('Agent.cancel()', () => {
     expect(userTexts(agent)).toEqual(['active', 'B'])
     expect(adapter.requests).toHaveLength(2)
     expect(agent.inbox.nextTurn).toHaveLength(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(e => e.type === 'turn/end').map(e =>
       e.type === 'turn/end' ? e.data.reason : null)).toEqual([
       { kind: 'aborted', reason: { kind: 'user' } },
@@ -196,6 +201,7 @@ describe('Agent.cancel()', () => {
     expect(agent.status).toBe('idle')
     // No replay with nothing to run: the latched message is gone, so no
     // empty follow-up turn is recorded.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(e => e.type === 'turn/start')).toHaveLength(1)
   })
 
@@ -255,8 +261,11 @@ describe('Agent.cancel()', () => {
     await new Promise(r => setTimeout(r, 30))
 
     expect(userTexts(agent)).toEqual([])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'step/start')).toHaveLength(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')?.data.reason)
       .toEqual({ kind: 'aborted', reason: { kind: 'user' } })
     expect(agent.status).toBe('idle')
@@ -286,6 +295,7 @@ describe('Agent.cancel()', () => {
     await driverDone(agent)
 
     expect(agent.status).toBe('idle')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'turn/start')).toBe(false)
     expect(userTexts(agent)).toEqual([])
     expect(adapter.requests).toHaveLength(0)
@@ -323,6 +333,7 @@ describe('Agent.cancel()', () => {
       replacementObservation = agent.whenIdle().then(() => ({
         status: agent.status,
         requests: adapter.requests.length,
+        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         turns: agent.session.snapshotEvents().filter(event => event.type === 'turn/start').length,
       }))
       agent.cancel({ kind: 'user' })
@@ -400,6 +411,7 @@ describe('Agent.cancel()', () => {
 
     expect(reasons).toEqual([{ kind: 'aborted', reason: { kind: 'user' } }])
     expect(userTexts(agent)).toEqual(['go'])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(1)
     expect(adapter.requests).toHaveLength(1)
   })
@@ -436,7 +448,9 @@ describe('Agent.cancel()', () => {
 
     expect(executions).toBe(0)
     expect(reasons).toEqual([{ kind: 'aborted', reason: { kind: 'user' } }])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const call = agent.session.snapshotEvents().find(event => event.type === 'tool/call')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const result = agent.session.snapshotEvents().find(event => event.type === 'tool/result')
     expect(call?.type === 'tool/call' ? call.data.callId : undefined).toBe('c1')
     expect(result?.type === 'tool/result' ? result.data : undefined).toMatchObject({
@@ -477,6 +491,7 @@ describe('Agent.cancel()', () => {
 
     expect(userTexts(agent)).toContain('second')
     // The second turn completed (its reply was streamed).
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const reasons = agent.session.snapshotEvents().filter(e => e.type === 'turn/end')
     expect(reasons.length).toBe(2)
   })
@@ -493,6 +508,7 @@ describe('Agent.cancel()', () => {
 
     // The prefix the user watched stream is committed as the step's message,
     // carrying the truncation marker and exact embedded stream that delivered it.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const message = agent.session.snapshotEvents().find(e => e.type === 'assistant/message')
     expect(message?.type === 'assistant/message' ? message.data.message.content : undefined)
       .toEqual([{ type: 'text', text: 'partial' }])
@@ -503,6 +519,7 @@ describe('Agent.cancel()', () => {
       ))
       : false).toBe(true)
     expect(message?.sourceEventSeqs).toBeUndefined()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const types = agent.session.snapshotEvents().map(e => e.type)
     expect(types.indexOf('assistant/message')).toBeLessThan(types.indexOf('step/end'))
     expect(types.indexOf('step/end')).toBeLessThan(types.indexOf('turn/end'))
@@ -537,12 +554,14 @@ describe('Agent.cancel()', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const message = agent.session.snapshotEvents().find(event => event.type === 'assistant/message')
     expect(message?.type === 'assistant/message' ? message.data.message.source.replayState : undefined)
       .toEqual(replayState)
     expect(message?.type === 'assistant/message' ? message.data.interrupted : undefined).toBe(true)
     expect(() => Session.fromRestore(
       agent.session.id,
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       structuredClone([...agent.session.snapshotEvents()]),
       structuredClone(agent.session.header),
       SessionLogOffset(0),
@@ -566,6 +585,7 @@ describe('Agent.cancel()', () => {
     agent.cancel({ kind: 'user' })
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const message = agent.session.snapshotEvents().find(e => e.type === 'assistant/message')
     expect(message?.type === 'assistant/message' ? message.data.message.content : undefined)
       .toEqual([{ type: 'reasoning', text: 'thinking about it' }])
@@ -593,9 +613,11 @@ describe('Agent.cancel()', () => {
     await waitForIdle(ctx, agent)
 
     // The undispatched call is dropped whole — no dangling tool_use to pair.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const message = agent.session.snapshotEvents().find(e => e.type === 'assistant/message')
     expect(message?.type === 'assistant/message' ? message.data.message.content : undefined)
       .toEqual([{ type: 'text', text: 'reading the file' }])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'tool/call')).toBe(false)
   })
 
@@ -618,7 +640,9 @@ describe('Agent.cancel()', () => {
 
     // The failed stream's prefix stays off the surface: clients reset it on
     // retry, and provider failures commit nothing.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'assistant/message')).toBe(false)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = agent.session.snapshotEvents().find(e => e.type === 'turn/end')
     expect(end?.type === 'turn/end' ? end.data.reason.kind : undefined).toBe('aborted')
   })
@@ -639,12 +663,14 @@ describe('Agent.cancel()', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const messages = agent.session.snapshotEvents().filter(e => e.type === 'assistant/message')
     expect(messages).toHaveLength(1)
     const message = messages[0]!
     expect(message.type === 'assistant/message' ? message.data.message.content : undefined)
       .toEqual([{ type: 'text', text: 'recovered' }])
     expect(message.type === 'assistant/message' ? message.data.interrupted : undefined).toBeUndefined()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const failed = agent.session.snapshotEvents().find(e => e.type === 'assistant/attempt')
     expect(failed?.type === 'assistant/attempt'
       ? expandAssistantStream(failed.data.stream).some(member => (
@@ -676,10 +702,12 @@ describe('Agent.cancel()', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const attempt = agent.session.snapshotEvents().find(event => event.type === 'assistant/attempt')
     expect(attempt?.type === 'assistant/attempt'
       ? expandAssistantStream(attempt.data.stream).map(member => member.chunk)
       : []).toContainEqual({ type: 'text-delta', index: 0, text: 'partial before failure' })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().find(event => event.type === 'turn/end')).toMatchObject({
       type: 'turn/end', data: { reason: { kind: 'error', error: { message: failure.message } } },
     })
@@ -700,6 +728,7 @@ describe('Agent.cancel()', () => {
     agent.cancel({ kind: 'user' })
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'assistant/message')).toBe(false)
   })
 
@@ -729,6 +758,7 @@ describe('Agent.cancel()', () => {
     // log is balanced (the open step was closed by the cancel branch).
     expect(streamed).toBe(false)
     expect(reasons).toEqual([{ kind: 'aborted', reason: { kind: 'user' } }])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const types = agent.session.snapshotEvents().map(e => e.type)
     expect(types.filter(t => t === 'step/start').length).toBe(types.filter(t => t === 'step/end').length)
   })
@@ -764,7 +794,9 @@ describe('Agent.cancel()', () => {
 
     expect(streamed).toBe(false)
     expect(adapter.requests).toHaveLength(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'turn/end')).toBe(false)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const types = agent.session.snapshotEvents().map(e => e.type)
     expect(types.filter(t => t === 'step/start').length).toBe(types.filter(t => t === 'step/end').length)
   })
@@ -818,6 +850,7 @@ describe('Agent.cancel()', () => {
     // No turn opened, no step streamed, and a later prompt still runs (the marker
     // was reset).
     expect(streamed).toBe(false)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'turn/start')).toBe(false)
   })
 
@@ -849,6 +882,7 @@ describe('Agent.cancel()', () => {
     await replacementIdle
     expect(userTexts(agent)).toEqual(['B', 'C'])
     expect(adapter.requests).toHaveLength(2)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/end')).toHaveLength(2)
   })
 
@@ -872,6 +906,7 @@ describe('Agent.cancel()', () => {
     await replacementIdle
     expect(userTexts(agent)).toEqual(['B', 'C'])
     expect(adapter.requests).toHaveLength(2)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/end')).toHaveLength(3)
   })
 
@@ -893,9 +928,11 @@ describe('Agent.cancel()', () => {
     // started from the dropped steering.
     await new Promise(r => setTimeout(r, 30))
     expect(agent.status).toBe('idle')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnStarts = agent.session.snapshotEvents().filter(e => e.type === 'turn/start')
     expect(turnStarts.length).toBe(1) // only the original (cancelled) turn
     // The steering text was dropped — it never reached the log.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const flat = agent.session.snapshotEvents()
       .filter(e => e.type === 'user/message')
       .flatMap(e => e.data.content)
@@ -927,6 +964,7 @@ describe('Agent.cancel()', () => {
             status: agent.status,
             requests: adapter.requests.length,
             users: userTexts(agent),
+            // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
             events: agent.session.snapshotEvents().map(event => event.type),
           })}`))
         }, 1000)
@@ -938,6 +976,7 @@ describe('Agent.cancel()', () => {
     expect(adapter.requests).toHaveLength(2)
     expect(userTexts(agent)).toEqual(['original', 'replacement'])
     expect(agent.inbox.nextTurn).toHaveLength(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const reasons = agent.session.snapshotEvents()
       .filter(event => event.type === 'turn/end')
       .map(event => event.type === 'turn/end' ? event.data.reason : undefined)
@@ -965,6 +1004,7 @@ describe('Agent.cancel()', () => {
     const runtimeReason: unknown = adapter.requests[0]?.signal?.reason
     expect(runtimeReason).toEqual({ kind: 'parent' })
     expect(runtimeReason).toBe(supplied)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')
     expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason).toEqual({
       kind: 'aborted',
@@ -986,6 +1026,7 @@ describe('Agent.cancel()', () => {
     agent.cancel({ kind: 'user' })
     await handle.dispose()
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')
     expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason).toEqual({ kind: 'aborted', reason: { kind: 'user' } })
   })
@@ -1057,6 +1098,7 @@ describe('Agent.cancel()', () => {
     const idle = agent.whenIdle()
     agent.cancel({ kind: 'user' })
     await idle
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')
     expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason)
       .toEqual({ kind: 'aborted', reason: { kind: 'user' } })
diff --git a/packages/core/agent-loop/tests/contract-regressions.spec.ts b/packages/core/agent-loop/tests/contract-regressions.spec.ts
index 68cb93f129..841bbbd63f 100644
--- a/packages/core/agent-loop/tests/contract-regressions.spec.ts
+++ b/packages/core/agent-loop/tests/contract-regressions.spec.ts
@@ -72,6 +72,7 @@ describe('assistant replay provider and model fields', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const recorded = agent.session.snapshotEvents().find(event => event.type === 'assistant/message')
     expect(recorded?.type === 'assistant/message' && recorded.data.message.source).toEqual({
       kind: 'model', provider: 'mock', model: 'next-model', replayState,
@@ -111,6 +112,7 @@ describe('abort during tool execution ends the turn', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents()
       .filter(event => event.type === 'tool/result'
         || (event.type === 'user/message' && event.data.source.kind === 'plugin')
@@ -124,6 +126,7 @@ describe('abort during tool execution ends the turn', () => {
     send(agent, 'wake')
     await idle
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents()
       .flatMap(event => event.type === 'user/message' && event.data.source.kind === 'plugin'
         ? [event.data.content]
@@ -174,6 +177,7 @@ describe('abort during tool execution ends the turn', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = agent.session.snapshotEvents()
     expect(events
       .filter(event => event.type === 'tool/result'
@@ -199,9 +203,11 @@ describe('abort during tool execution ends the turn', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
     expect(adapter.requests).toHaveLength(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start'
       || event.type === 'step/start' || event.type === 'turn/end').map(event => event.type))
       .toEqual(['turn/start', 'turn/end'])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().find(event => event.type === 'turn/end')?.data)
       .toEqual({ turn: 1, reason: { kind: 'completed' } })
     expect(agent.inbox.nextTurn).toHaveLength(0)
@@ -243,19 +249,23 @@ describe('abort during tool execution ends the turn', () => {
     await started.promise
     await fiber.dispose()
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents()
       .flatMap(event => event.type === 'user/message' && event.data.source.kind === 'plugin'
         ? [event.data.content]
         : []))
       .toEqual([])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents()
       .flatMap(event => event.type === 'agent/inbox/spliced' && event.data.target === 'next-step'
         ? [event.data.inserted.map(inboxText)]
         : [])
       .at(-1))
       .toEqual(['accepted result context during disposal'])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start'))
       .toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().find(event => event.type === 'turn/end')?.data.reason)
       .toEqual({ kind: 'aborted', reason: { kind: 'disposed' } })
   })
@@ -310,6 +320,7 @@ describe('abort during tool execution ends the turn', () => {
     send(agent, 'start a text-only turn')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event =>
       event.type === 'user/message' && event.data.source.kind === 'plugin'
         ? [event.data.content]
@@ -362,6 +373,7 @@ describe('plugin exceptions are contained', () => {
 
     send(agent, 'first')
     await waitForIdle(ctx, agent)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')).toMatchObject({
       data: { reason: { kind: 'error', error: { message: 'broken continuation plugin', code: 'UNKNOWN' } } },
     })
@@ -398,7 +410,9 @@ describe('disposal leaves the two-state status contract balanced', () => {
 
     expect(statuses).toEqual(['running', 'idle'])
     expect(reasons).toEqual([{ kind: 'aborted', reason: { kind: 'disposed' } }])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const messages = agent.session.snapshotEvents()
       .filter(event => event.type === 'user/message')
       .flatMap(event => event.data.content)
@@ -448,6 +462,7 @@ describe('adapter registration, routing, and accepted-input ownership', () => {
 
     send(agent, 'go')
     await waitForIdle(ctx, agent)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')
     expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason.kind === 'error'
       ? turnEnd.data.reason.error.message
@@ -510,6 +525,7 @@ describe('adapter registration, routing, and accepted-input ownership', () => {
       ['content', 'id', 'role', 'source'],
     ])
     expect(targets).toEqual(['next-turn', 'next-step'])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const steeringSources = agent.session.snapshotEvents().flatMap(e =>
       e.type === 'user/message' && e.data.source.kind === 'plugin' ? [e.data.source] : [])
     expect(steeringSources).toEqual([{ kind: 'plugin', plugin: 'goal' }])
@@ -543,6 +559,7 @@ describe('adapter registration, routing, and accepted-input ownership', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = agent.session.snapshotEvents()
     const claims = events.flatMap(event => event.type === 'agent/inbox/spliced'
       && event.data.target === 'next-step'
@@ -588,6 +605,7 @@ describe('turn numbering continues across seeded sessions', () => {
 
     const { agent: forked } = await ctx2.agents.create({
       sessionId: SessionId('forked'),
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       seed: agent.session.snapshotEvents(),
       agentOptions: { provider: 'mock', model: 'mock' },
     })
@@ -656,6 +674,7 @@ describe('a finish-error stream chunk ends the turn as error, not completed', ()
     expect(errors[0]).toBeInstanceOf(LlmError)
     expect((errors[0] as LlmError).failure).toEqual(failure)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = agent.session.snapshotEvents()
     const turnEnd = events.find(event => event.type === 'turn/end')
     expect(turnEnd).toMatchObject({ data: { reason: { kind: 'error', error: failure } } })
@@ -678,6 +697,7 @@ describe('a finish-error stream chunk ends the turn as error, not completed', ()
     await waitForIdle(ctx, agent)
 
     expect(reasons).toEqual([{ kind: 'error', error: { message: 'model stream aborted', code: 'ABORTED' } }])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'assistant/message')).toBe(false)
   })
 
@@ -708,6 +728,7 @@ describe('step boundary publication order', () => {
     const observed: { turn: number; step: number; lastEventType: string | undefined; sawStepStart: boolean }[] = []
     ctx.on('session/event', (subject, event) => {
       if (subject !== agent.session || event.type !== 'step/start') return
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const events = subject.snapshotEvents()
       const last = events.at(-1)
       observed.push({
@@ -744,6 +765,7 @@ describe('turn and step boundary recovery', () => {
 
   /** Count turn/step boundary events for balance assertions. */
   function boundaryCounts(agent: Agent) {
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const e = agent.session.snapshotEvents()
     return {
       turnStart: e.filter(x => x.type === 'turn/start').length,
@@ -774,6 +796,7 @@ describe('turn and step boundary recovery', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const e = agent.session.snapshotEvents()
     const c = boundaryCounts(agent)
     expect(c).toMatchObject({ turnStart: 1, turnEnd: 1, stepStart: 1, stepEnd: 1, errors: 0 })
@@ -807,6 +830,7 @@ describe('turn and step boundary recovery', () => {
     send(agent, 'rejected')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'turn/start'
       || event.type === 'user/message')).toBe(false)
     expect(agent.inbox.nextTurn).toHaveLength(1)
@@ -838,6 +862,7 @@ describe('turn and step boundary recovery', () => {
       stepEnd: 0,
       errors: 1,
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')).toMatchObject({
       data: { reason: { kind: 'error', error: { message: 'reject step-start before commit', code: 'UNKNOWN' } } },
     })
@@ -931,6 +956,7 @@ describe('turn and step boundary recovery', () => {
     await fiber.dispose() // dispose during the hanging step
     await driverDone(agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const e = agent.session.snapshotEvents()
     const turnStarts = e.filter(x => x.type === 'turn/start').length
     const turnEnds = e.filter(x => x.type === 'turn/end').length
@@ -964,6 +990,7 @@ describe('turn and step boundary recovery', () => {
     send(agent, 'go')
     await agent.whenIdle()
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const e = agent.session.snapshotEvents()
     expect(e.filter(x => x.type === 'turn/start' || x.type === 'turn/end').map(x => x.type))
       .toEqual(['turn/start', 'turn/end'])
@@ -993,11 +1020,14 @@ describe('turn and step boundary recovery', () => {
     expect(errors).toEqual([])
     // Session contains the observer failure per listener, so the committed turn
     // remains visible to later observers and executes normally.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const types = agent.session.snapshotEvents().map(e => e.type)
     expect(types.filter(t => t === 'turn/start')).toHaveLength(1)
     expect(types.filter(t => t === 'turn/end')).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const lastBoundary = agent.session.snapshotEvents().findLast(e => e.type === 'turn/start' || e.type === 'turn/end')
     expect(lastBoundary?.type).toBe('turn/end')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().at(-1)?.type).toBe('turn/end')
 
     // loop survives: a second turn runs normally.
@@ -1030,6 +1060,7 @@ describe('turn and step boundary recovery', () => {
       .toEqual({ kind: 'completed' })
 
     // step/end precedes turn/end (ordering contract)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const e = agent.session.snapshotEvents()
     const stepEndIdx = e.findIndex(x => x.type === 'step/end')
     const turnEndIdx = e.findIndex(x => x.type === 'turn/end')
@@ -1064,6 +1095,7 @@ describe('turn and step boundary recovery', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const e = agent.session.snapshotEvents()
     // Both step/end and turn/end are present — finalization ran to completion.
     expect(e.some(x => x.type === 'step/end')).toBe(true)
@@ -1094,6 +1126,7 @@ describe('turn and step boundary recovery', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
     // turn 1 is balanced despite the throwing turn/end listener.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const e1 = agent.session.snapshotEvents()
     expect(e1.filter(x => x.type === 'turn/start')).toHaveLength(1)
     expect(e1.filter(x => x.type === 'turn/end')).toHaveLength(1)
@@ -1103,6 +1136,7 @@ describe('turn and step boundary recovery', () => {
     send(agent, 'again')
     await waitForIdle(ctx, agent)
     expect(adapter.requests).toHaveLength(2)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(x => x.type === 'turn/end')).toHaveLength(2)
   })
 })
@@ -1135,6 +1169,7 @@ describe('tool result call identity', () => {
     await waitForIdle(ctx, agent)
 
     // The logged tool/result.callId is the originating call.id.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const resultEvent = agent.session.snapshotEvents().find(e => e.type === 'tool/result')
     expect(resultEvent?.type).toBe('tool/result')
     if (resultEvent?.type === 'tool/result') {
@@ -1199,6 +1234,7 @@ describe('disposal and cancellation during pre-step assembly', () => {
     await driverDone(agent)
     unlisten()
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const e = agent.session.snapshotEvents()
     expect(e.filter(x => x.type === 'turn/start' || x.type === 'turn/end').map(x => x.type))
       .toEqual(['turn/start', 'turn/end'])
@@ -1247,6 +1283,7 @@ describe('disposal and cancellation during pre-step assembly', () => {
     await driverDone(agent)
     unlisten()
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const e = agent.session.snapshotEvents()
     expect(e.filter(x => x.type === 'turn/start' || x.type === 'turn/end').map(x => x.type))
       .toEqual(['turn/start', 'turn/end'])
@@ -1297,6 +1334,7 @@ describe('disposal and cancellation during pre-step assembly', () => {
     await driverDone(agent)
 
     // The post-listener cancellation check catches disposal before any step or LLM call.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const e = agent.session.snapshotEvents()
     expect(e.filter(x => x.type === 'turn/start' || x.type === 'turn/end').map(x => x.type))
       .toEqual(['turn/start', 'turn/end'])
@@ -1344,6 +1382,7 @@ describe('disposal and cancellation during pre-step assembly', () => {
     await fiber.dispose()
     await driverDone(agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const e = agent.session.snapshotEvents()
     expect(e.filter(x => x.type === 'turn/start' || x.type === 'turn/end').map(x => x.type))
       .toEqual(['turn/start', 'turn/end'])
@@ -1389,6 +1428,7 @@ describe('disposal and cancellation during pre-step assembly', () => {
     await disposalDone
     await driverDone(agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const e = agent.session.snapshotEvents()
     expect(e.filter(x => x.type === 'turn/start' || x.type === 'turn/end').map(x => x.type))
       .toEqual(['turn/start', 'turn/end'])
diff --git a/packages/core/agent-loop/tests/coverage-edges.spec.ts b/packages/core/agent-loop/tests/coverage-edges.spec.ts
index 1fa24977b2..f18e662e61 100644
--- a/packages/core/agent-loop/tests/coverage-edges.spec.ts
+++ b/packages/core/agent-loop/tests/coverage-edges.spec.ts
@@ -69,12 +69,14 @@ describe('tool JSON parse', () => {
     await waitForIdle(ctx, agent)
 
     // tool/call event should have recorded the raw arguments string
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const callEvent = agent.session.snapshotEvents().find(e => e.type === 'tool/call')
     expect(callEvent).toBeDefined()
     if (callEvent!.type === 'tool/call') {
       expect(callEvent!.data.arguments).toBe('not json')
     }
     // the loop did not crash — a result was produced
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'tool/result')).toBe(true)
   })
 
@@ -101,6 +103,7 @@ describe('tool JSON parse', () => {
     send(agent, 'use tool')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'tool/result')).toBe(true)
   })
 })
@@ -130,8 +133,11 @@ describe('thrown-value propagation', () => {
     expect(errors).toHaveLength(1)
     expect(errors[0]).toBe('naked string error')
     expect(adapter.requests).toHaveLength(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const starts = agent.session.snapshotEvents().filter(event => event.type === 'turn/start')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const ends = agent.session.snapshotEvents().filter(event => event.type === 'turn/end')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const messages = agent.session.snapshotEvents().filter(event => event.type === 'user/message')
     expect(starts).toHaveLength(0)
     expect(ends).toHaveLength(0)
@@ -155,6 +161,7 @@ describe('thrown-value propagation', () => {
 
     send(agent, 'go')
     await waitForIdle(ctx, agent)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = agent.session.snapshotEvents().find(e => e.type === 'turn/end')
     expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason.kind === 'error'
       ? turnEnd.data.reason.error.message
@@ -180,6 +187,7 @@ describe('durable error rendering', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = agent.session.snapshotEvents().find(e => e.type === 'turn/end')
     expect(turnEnd).toBeDefined()
     if (turnEnd?.type === 'turn/end' && turnEnd.data.reason.kind === 'error') {
@@ -236,6 +244,7 @@ describe('structured tool error propagation (the runtime-validation Agent Note,
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const toolResult = agent.session.snapshotEvents().find(e => e.type === 'tool/result')
     expect(toolResult?.type === 'tool/result' && toolResult.data.message.content[0].isError).toBe(true)
     expect(toolResult?.type === 'tool/result' && toolResult.data.error)
@@ -262,6 +271,7 @@ describe('request-error action edges', () => {
 
     // One failed request, no retry turn.
     expect(adapter.requests).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const ends = agent.session.snapshotEvents().filter(e => e.type === 'turn/end')
     expect(ends).toHaveLength(1)
   })
@@ -284,6 +294,7 @@ describe('request-error action edges', () => {
     await agent.whenIdle()
 
     expect(adapter.requests).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = agent.session.snapshotEvents().findLast(e => e.type === 'turn/end')
     expect(end?.type === 'turn/end' && end.data.reason.kind).toBe('aborted')
   })
@@ -313,6 +324,7 @@ describe('stream failure edges', () => {
 
     // No facts -> not offered to recovery; the turn fails through settle().
     expect(recoveries).toBe(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = agent.session.snapshotEvents().findLast(e => e.type === 'turn/end')
     expect(end?.type === 'turn/end' && end.data.reason.kind).toBe('error')
   })
@@ -388,6 +400,7 @@ describe('tool result meta persistence', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const result = agent.session.snapshotEvents().find(e => e.type === 'tool/result')
     expect(result?.type === 'tool/result' && result.data.meta).toEqual({ presentation: 'diff-card' })
   })
@@ -436,6 +449,7 @@ describe('recovery without a retry action', () => {
 
     expect(recoveries).toBe(1)
     expect(adapter.requests).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = agent.session.snapshotEvents().findLast(e => e.type === 'turn/end')
     expect(end?.type === 'turn/end' && end.data.reason.kind).toBe('error')
   })
@@ -461,6 +475,7 @@ describe('unrenderable failure settlement', () => {
     send(agent, 'go')
     await agent.whenIdle()
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = agent.session.snapshotEvents().findLast(e => e.type === 'turn/end')
     expect(end?.type === 'turn/end' && end.data.reason.kind).toBe('error')
     if (end?.type === 'turn/end' && end.data.reason.kind === 'error') {
@@ -502,6 +517,7 @@ describe('driver bookkeeping edges', () => {
 
     expect(proposals).toBe(2)
     expect(adapter.requests).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')
     expect(end?.type === 'turn/end' && end.data.reason).toEqual({ kind: 'blocked' })
   })
@@ -524,8 +540,10 @@ describe('driver bookkeeping edges', () => {
     send(agent, 'go')
     await agent.whenIdle()
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const types = agent.session.snapshotEvents().map(e => e.type)
     expect(types.filter(t => t === 'step/end')).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = agent.session.snapshotEvents().findLast(e => e.type === 'turn/end')
     expect(end?.type === 'turn/end' && end.data.reason.kind).toBe('error')
   })
diff --git a/packages/core/agent-loop/tests/inbox.spec.ts b/packages/core/agent-loop/tests/inbox.spec.ts
index 028c42ca5c..021e2339f7 100644
--- a/packages/core/agent-loop/tests/inbox.spec.ts
+++ b/packages/core/agent-loop/tests/inbox.spec.ts
@@ -142,6 +142,7 @@ describe('ReactLoopInbox', () => {
     const childAgent = stubAgent('inbox-fork-child', { ctx, session: child })
     const childInbox = new ReactLoopInbox(ctx.sessionProjections, child, agentEvents(ctx, childAgent))
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.inheritedEventCount).toBe(parent.snapshotEvents().length)
     expect(childInbox.nextTurn).toEqual([inherited])
 
@@ -246,6 +247,7 @@ describe('ReactLoopInbox', () => {
     const nextStep = createUserMessage({ content: [{ type: 'text', text: 'step' }], source: { kind: 'user' } })
     agent.inbox.append('next-turn', nextTurn)
     agent.inbox.append('next-step', nextStep)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const beforeClear = session.snapshotEvents().length
 
     agent.inbox.clear()
@@ -253,6 +255,7 @@ describe('ReactLoopInbox', () => {
     expect(agent.inbox.nextTurn).toEqual([])
     expect(agent.inbox.nextStep).toEqual([])
     expect(discarded).toEqual([nextStep, nextTurn])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().slice(beforeClear).map(event => event.type === 'agent/inbox/spliced'
       ? event.data
       : event.type)).toEqual([
@@ -261,6 +264,7 @@ describe('ReactLoopInbox', () => {
     ])
 
     agent.inbox.clear()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(beforeClear + 2)
   })
 })
diff --git a/packages/core/agent-loop/tests/interception.spec.ts b/packages/core/agent-loop/tests/interception.spec.ts
index b50fb45942..3decd9499e 100644
--- a/packages/core/agent-loop/tests/interception.spec.ts
+++ b/packages/core/agent-loop/tests/interception.spec.ts
@@ -57,6 +57,7 @@ function send(agent: Agent, text: string) {
 }
 
 function events(agent: Agent): readonly SessionEvent[] {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return agent.session.snapshotEvents()
 }
 
diff --git a/packages/core/agent-loop/tests/loop.spec.ts b/packages/core/agent-loop/tests/loop.spec.ts
index fb98a37e31..68b8683cb0 100644
--- a/packages/core/agent-loop/tests/loop.spec.ts
+++ b/packages/core/agent-loop/tests/loop.spec.ts
@@ -53,6 +53,7 @@ function systemOf(request: GenerateOptions | undefined): string | undefined {
 
 /** All user-message texts recorded in the log (to assert what actually ran). */
 function userTexts(agent: Agent): string[] {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return agent.session.snapshotEvents()
     .filter(e => e.type === 'user/message')
     .flatMap(e => e.type === 'user/message' ? e.data.content : [])
@@ -72,6 +73,7 @@ describe('agent loop', () => {
       if (subject !== agent) return
       frames.push(frame)
       if (frame.type === 'end' && frame.outcome.kind === 'committed') {
+        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         committedAfterMessage = agent.session.snapshotEvents().at(-1)?.type === 'assistant/message'
       }
     })
@@ -91,7 +93,9 @@ describe('agent loop', () => {
       (frame): frame is Extract<AssistantStreamFrame, { type: 'chunk' }> => frame.type === 'chunk',
     )
     expect(chunks.map(frame => frame.index)).toEqual(chunks.map((_frame, index) => index))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => (event.type as string) === 'assistant/chunk')).toBe(false)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const message = agent.session.snapshotEvents().findLast(event => event.type === 'assistant/message')
     expect(message?.type === 'assistant/message'
       ? expandAssistantStream(message.data.stream).map(member => member.chunk)
@@ -133,6 +137,7 @@ describe('agent loop', () => {
       type: 'end',
       outcome: { kind: 'abandoned' },
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'assistant/message')).toBe(false)
   })
 
@@ -160,9 +165,11 @@ describe('agent loop', () => {
       index: 2,
       outcome: { kind: 'abandoned' },
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => (
       event.type === 'assistant/message' || event.type === 'assistant/attempt'
     ))).toBe(false)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
       type: 'turn/end',
       data: { reason: { kind: 'error' } },
@@ -218,6 +225,7 @@ describe('agent loop', () => {
     await waitForIdle(ctx, agent)
 
     expect(frames).toEqual([])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
       type: 'turn/end',
       data: { reason: { kind: 'error' } },
@@ -433,6 +441,7 @@ describe('agent loop', () => {
 
     expect(userTexts(agent)).toEqual([])
     expect(adapter.requests).toEqual([])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(e => e.type === 'turn/start')).toHaveLength(0)
   })
 
@@ -456,12 +465,14 @@ describe('agent loop', () => {
 
     expect(order).toEqual(['turn/start', 'step/start', 'step/end', 'turn/end'])
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const types = agent.session.snapshotEvents().map(e => e.type)
     // Durable inbox receipt precedes the turn-owned transcript.
     expect(types[0]).toBe('agent/inbox/spliced')
     expect(types).toContain('turn/start')
     expect(types).toContain('user/message')
     expect(types).toContain('assistant/message')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const assistantMessage = agent.session.snapshotEvents().find(e => e.type === 'assistant/message')
     expect(assistantMessage?.type === 'assistant/message' && assistantMessage.data.usage).toEqual({ inputTokens: 10, outputTokens: 'hello there'.length })
     expect(types.at(-1)).toBe('turn/end')
@@ -504,6 +515,7 @@ describe('agent loop', () => {
     expect((block).content).toEqual([{ type: 'text', text: 'echo: ping' }])
 
     // session log records call + result
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const types = agent.session.snapshotEvents().map(e => e.type)
     expect(types).toContain('tool/call')
     expect(types).toContain('tool/result')
@@ -566,6 +578,7 @@ describe('agent loop', () => {
     expect(errors.map(error => error.message)).toEqual([
       'prompt variable "{{cwd}}" has no value for this assembly (section "deployment:persona-prefix")',
     ])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = agent.session.snapshotEvents().find(e => e.type === 'turn/end')
     expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason.kind).toBe('error')
     expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason.kind === 'error'
@@ -583,6 +596,7 @@ describe('agent loop', () => {
 
     expect(adapter.requests).toHaveLength(1)
     expect(systemOf(adapter.requests[0])).toBe('You are an AI agent powered by DeepSeek Harness.\n\nIn /rescued.')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnds = agent.session.snapshotEvents().filter(e => e.type === 'turn/end')
     expect(turnEnds).toHaveLength(2)
     expect(turnEnds[1]?.type === 'turn/end' && turnEnds[1].data.reason.kind).toBe('completed')
@@ -630,6 +644,7 @@ describe('agent loop', () => {
     expect(adapter.requests).toHaveLength(1)
     expect('system' in adapter.requests[0]!).toBe(false)
     expect(adapter.requests[0]!.messages.map(message => message.role)).toEqual(['user'])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'system/message')).toMatchObject([
       { data: { message: { role: 'system', content: [] } }, surfaceOp: 'append' },
     ])
@@ -644,6 +659,7 @@ describe('agent loop', () => {
       const firstIdle = waitForIdle(ctx, agent)
       send(agent, 'first')
       await firstIdle
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const head = agent.session.snapshotEvents().find(event => event.type === 'system/message')
       expect(adapter.requests[0]?.messages.map(message => message.role)).toEqual(['user'])
       expect(head).toMatchObject({ data: { message: { content: [] } }, surfaceOp: 'append' })
@@ -656,12 +672,14 @@ describe('agent loop', () => {
       expect(adapter.requests).toHaveLength(2)
       expect(systemOf(adapter.requests[1])).toBe('You are an AI agent powered by DeepSeek Harness.')
       expect(adapter.requests[1]?.messages.map(message => message.role)).toEqual(['system', 'user', 'assistant', 'user'])
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const replacement = agent.session.snapshotEvents().findLast(event => event.type === 'system/message')
       expect(replacement).toMatchObject({
         surfaceOp: { op: 'replace', startSeq: head?.seq, endSeq: head?.seq },
         sourceEventSeqs: [head?.seq],
       })
       expect(agent.session.surface.nodes[0]).toBe(replacement?.seq)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().flatMap(event =>
         event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial', 'series'])
     } finally {
@@ -681,6 +699,7 @@ describe('agent loop', () => {
     let mode = 'read-only'
     const dispose = ctx.systemPrompt.context({ name: 'policy', order: 0, text: () => `Mode: ${mode}.` })
     const agent = await ctx.agentLoop.create(SessionId('a-runtime-context'), { provider: 'mock', model: 'mock' })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const contextEvents = () => agent.session.snapshotEvents().flatMap(event =>
       event.type === 'user/message'
         && event.data.source.kind === 'plugin'
@@ -722,7 +741,9 @@ describe('agent loop', () => {
     await waitForIdle(ctx, agent)
     expect(contextEvents()).toHaveLength(3)
     expect(adapter.requests.map(systemOf)).toEqual(Array(5).fill(systemOf(adapter.requests[0])))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'system/message')).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event =>
       event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial'])
   })
@@ -735,6 +756,7 @@ describe('agent loop', () => {
 
     send(agent, 'first')
     await waitForIdle(ctx, agent)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const contextEvent = agent.session.snapshotEvents().find(event =>
       event.type === 'user/message'
       && event.data.source.kind === 'plugin'
@@ -750,6 +772,7 @@ describe('agent loop', () => {
 
     send(agent, 'after compaction')
     await waitForIdle(ctx, agent)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const runtimeContexts = agent.session.snapshotEvents().flatMap(event =>
       event.type === 'user/message'
         && event.data.source.kind === 'plugin'
@@ -770,6 +793,7 @@ describe('agent loop', () => {
 
     send(agent, 'first')
     await waitForIdle(ctx, agent)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const contextEvent = agent.session.snapshotEvents().find(event =>
       event.type === 'user/message'
       && event.data.source.kind === 'plugin'
@@ -832,6 +856,7 @@ describe('agent loop', () => {
 
     send(agent, 'repair context')
     await waitForIdle(ctx, agent)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const runtimeContexts = agent.session.snapshotEvents().flatMap(event =>
       event.type === 'user/message'
         && event.data.source.kind === 'plugin'
@@ -853,6 +878,7 @@ describe('agent loop', () => {
     send(agent, 'hi')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const message = agent.session.snapshotEvents().find(e => e.type === 'assistant/message')
     const chunks = message?.type === 'assistant/message' ? expandAssistantStream(message.data.stream) : []
     // textResponse('abc') = block-start + 3 deltas + block-end + usage + finish = 7
@@ -887,12 +913,14 @@ describe('agent loop', () => {
     send(agent, 'start')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const steering = agent.session.snapshotEvents().find(e =>
       e.type === 'user/message' && JSON.stringify(e.data.content).includes('change of plans'))
     expect(steering).toBeDefined()
     // The entered batch is appended after the second step opens and before its
     // request derives history.
     const steeringSeq = steering!.seq
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const secondStepStart = agent.session.snapshotEvents().filter(e => e.type === 'step/start')[1]
     expect(secondStepStart).toBeDefined()
     expect(steeringSeq).toBeGreaterThan(secondStepStart!.seq)
@@ -911,11 +939,14 @@ describe('agent loop', () => {
     const idle = waitForIdle(ctx, agent)
     agent.steer(createUserMessage({ content: [{ type: 'text', text: 'first idle steer' }], source: { kind: 'user' } }))
     expect(agent.status).toBe('running')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(1)
     agent.steer(createUserMessage({ content: [{ type: 'text', text: 'second idle steer' }], source: { kind: 'user' } }))
     await idle
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents()
       .filter(event => event.type === 'user/message')
       .map(event => event.data.content)).toEqual([
@@ -944,7 +975,9 @@ describe('agent loop', () => {
     await waitForIdle(ctx, agent)
 
     expect(adapter.requests).toHaveLength(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/end')).toHaveLength(1)
     expect(agent.inbox.nextStep).toHaveLength(1)
 
@@ -952,6 +985,7 @@ describe('agent loop', () => {
     await waitForIdle(ctx, agent)
 
     expect(adapter.requests).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(2)
     expect(JSON.stringify(adapter.requests[0]?.messages)).toContain('pending steering')
   })
@@ -964,7 +998,9 @@ describe('agent loop', () => {
     agent.inject(createUserMessage({ content: [{ type: 'text', text: 'file changed: a.ts' }], source: { kind: 'plugin', plugin: 'watcher' } }))
     expect(agent.status).toBe('idle')
     expect(adapter.requests).toHaveLength(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
       type: 'agent/inbox/spliced',
       data: {
@@ -979,6 +1015,7 @@ describe('agent loop', () => {
 
     send(agent, 'go')
     await waitForIdle(ctx, agent)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(1)
     const flat = JSON.stringify(adapter.requests[0]!.messages)
     expect(flat).toContain('file changed: a.ts')
@@ -994,6 +1031,7 @@ describe('agent loop', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const contextEvent = agent.session.snapshotEvents().find(event => event.type === 'user/message' && event.data.source.kind === 'plugin')
     expect(contextEvent?.type === 'user/message' && contextEvent.data.source)
       .toEqual({ kind: 'plugin', plugin: 'agent-instructions' })
@@ -1020,6 +1058,7 @@ describe('agent loop', () => {
         agent.inject(createUserMessage({ content: [first], source: { kind: 'plugin', plugin: 'x' } }))
         first.text = 'mutated after inject'
         agent.inject(createUserMessage({ content: [{ type: 'text', text: 'second notice' }], source: { kind: 'plugin', plugin: 'x' } }))
+        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         visibleDuringTool = agent.session.snapshotEvents().some(e => e.type === 'user/message' && e.data.source.kind === 'plugin')
         return [{ type: 'text', text: 'ok' }]
       },
@@ -1032,9 +1071,12 @@ describe('agent loop', () => {
 
     // The injection stays in the open turn, but its user-role context cannot
     // split the assistant tool call from the provider's tool-result message.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnStarts = agent.session.snapshotEvents().filter(e => e.type === 'turn/start')
     expect(turnStarts).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const result = agent.session.snapshotEvents().find(e => e.type === 'tool/result')!
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const contexts = agent.session.snapshotEvents().filter(e => e.type === 'user/message' && e.data.source.kind === 'plugin')
     expect(contexts).toHaveLength(2)
     expect(result.seq).toBeLessThan(contexts[0]!.seq)
@@ -1079,6 +1121,7 @@ describe('agent loop', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'user/message' && event.data.source.kind === 'plugin')).toBe(false)
   })
 
@@ -1124,6 +1167,7 @@ describe('agent loop', () => {
     // only one model call despite the tool call requesting a follow-up
     expect(adapter.requests).toHaveLength(1)
     // The tool still executes and durably records its result.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'tool/result')).toBe(true)
   })
 
@@ -1150,6 +1194,7 @@ describe('agent loop', () => {
     await waitForIdle(ctx, agent)
 
     expect(adapter.requests).toHaveLength(2)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = agent.session.snapshotEvents().map(event => event.type)
     expect(events.filter(type => type === 'turn/end')).toHaveLength(1)
     expect(JSON.stringify(adapter.requests[1]?.messages)).toContain('late steering')
@@ -1179,6 +1224,7 @@ describe('agent loop', () => {
     expect(adapter.requests[0]!.model).toBe('other-model')
     // The header event records what the request ACTUALLY used — the switch is
     // a reconstructable fact, not silent drift.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const headerEvent = agent.session.snapshotEvents().find(e => e.type === 'request/header')
     expect(headerEvent?.type === 'request/header' && headerEvent.data.header.config.model).toBe('other-model')
   })
@@ -1218,6 +1264,7 @@ describe('agent loop', () => {
 
     let boundaryOpen = true
     ctx.on('agent/pre-step', ({ agent: subject }, next) => {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       if (subject === agent) boundaryOpen = subject.session.snapshotEvents().at(-1)?.type === 'step/start'
       return next()
     })
@@ -1250,13 +1297,16 @@ describe('agent loop', () => {
     // The first proposal failed inside a balanced turn without calling the model.
     expect(errors.map(error => error.message)).toEqual(['boom in pre-step'])
     expect(adapter.requests.length).toBe(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'turn/start')).toBe(true)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'turn/end')).toBe(true)
 
     // The loop survived: a second prompt runs a normal completed turn.
     send(agent, 'second')
     await waitForIdle(ctx, agent)
     expect(adapter.requests.length).toBe(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const lastTurnEnd = agent.session.snapshotEvents().findLast(e => e.type === 'turn/end')
     expect(lastTurnEnd?.type === 'turn/end' && lastTurnEnd.data.reason).toEqual({ kind: 'completed' })
   })
@@ -1303,6 +1353,7 @@ describe('agent loop', () => {
     expect(adapter.requests).toHaveLength(1)
     expect(reasons).toEqual([{ kind: 'max-tokens' }])
     // Assert the durable row, not only the live listener.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = agent.session.snapshotEvents().findLast(e => e.type === 'turn/end')
     expect(turnEnd!.data.reason).toEqual({ kind: 'max-tokens' })
   })
@@ -1407,6 +1458,7 @@ describe('agent loop', () => {
     await waitForIdle(ctx, agent)
 
     expect(executions).toBe(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'tool/call')).toBe(false)
     expect(agent.session.deriveMessages().slice(1)).toEqual([{
       id: expect.any(String) as unknown,
@@ -1417,6 +1469,7 @@ describe('agent loop', () => {
     expect(reasons).toEqual([{ kind: 'max-tokens' }])
     // Empty content still needs an assistant/message to carry usage; derivation
     // skips that host so it does not create a spurious assistant turn.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const assistantMessage = agent.session.snapshotEvents().find(e => e.type === 'assistant/message')
     expect(assistantMessage?.type === 'assistant/message' && assistantMessage.data).toMatchObject({
       turn: 1,
@@ -1457,6 +1510,7 @@ describe('agent loop', () => {
     await waitForIdle(ctx, agent)
 
     expect(reasons).toEqual([{ kind: 'max-tokens' }])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const assistant = agent.session.snapshotEvents().find(e => e.type === 'assistant/message')!
     expect(assistant.type === 'assistant/message' && assistant.data).toMatchObject({
       turn: 1,
@@ -1492,6 +1546,7 @@ describe('agent loop', () => {
     await waitForIdle(ctx, agent)
 
     expect(reasons).toEqual([{ kind: 'completed' }])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const assistant = agent.session.snapshotEvents().find(e => e.type === 'assistant/message')!
     expect(assistant.type === 'assistant/message' && assistant.data).toMatchObject({
       turn: 1,
@@ -1535,6 +1590,7 @@ describe('agent loop', () => {
     send(agent, 'continue')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'tool/call')).toBe(false)
     // The follow-up request replays the truncated message with its replay
     // metadata pruned in step with the dropped tool call.
@@ -1603,6 +1659,7 @@ describe('agent loop', () => {
     await waitForIdle(ctx, agent)
 
     expect(adapter.requests).toHaveLength(2)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = agent.session.snapshotEvents().findLast(e => e.type === 'turn/end')
     expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason.kind).toBe('completed')
   })
@@ -1624,7 +1681,9 @@ describe('agent loop', () => {
     send(agent, 'outer message')
     await idle
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turns = agent.session.snapshotEvents().filter(event => event.type === 'turn/start')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const messages = agent.session.snapshotEvents()
       .filter(event => event.type === 'user/message')
       .map(event => event.data.content)
@@ -1643,7 +1702,9 @@ describe('agent loop', () => {
     agent.followup(createUserMessage({ content: [{ type: 'text', text: 'plugin message' }], source: { kind: 'plugin', plugin: 'test' } }))
     await idle
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turns = agent.session.snapshotEvents().filter(event => event.type === 'turn/start')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const sources = agent.session.snapshotEvents()
       .filter(event => event.type === 'user/message')
       .map(event => event.data.source)
@@ -1699,9 +1760,11 @@ describe('agent loop', () => {
     send(agent, 'outer message')
     await idle
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const messages = agent.session.snapshotEvents()
       .filter(event => event.type === 'user/message')
       .map(event => event.data.content)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(2)
     expect(messages).toEqual([
       [{ type: 'text', text: 'outer message' }],
@@ -1732,6 +1795,7 @@ describe('agent loop', () => {
     })
     expect(reasons[0]).toMatchObject({ kind: 'error' })
     // The durable failure and live relay describe the same failed turn.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = agent.session.snapshotEvents().find(e => e.type === 'turn/end')
     expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason).toMatchObject({ kind: 'error' })
   })
@@ -1785,6 +1849,7 @@ describe('agent loop', () => {
     await waitForIdle(ctx, agent)
     expect(adapter.requests).toHaveLength(1)
     expect(adapter.requests[0]?.reasoningEffort).toBe(effort)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const header = agent.session.snapshotEvents().find(event => event.type === 'request/header')
     expect(header?.type === 'request/header' && header.data.header.config.reasoningEffort).toBe(effort)
   })
@@ -1823,11 +1888,15 @@ describe('agent loop', () => {
     send(agent, 'run')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const replayed = ctx.sessions.create(SessionId('replayed'), { seed: [...agent.session.snapshotEvents()] })
     expect(replayed.deriveMessages()).toEqual(agent.session.deriveMessages())
     // event-by-event identity of types over the inherited prefix
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(replayed.snapshotEvents().slice(0, agent.session.seq).map(e => e.type)).toEqual(
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       agent.session.snapshotEvents().map(e => e.type))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(replayed.snapshotEvents().at(-1)?.type).toBe('session/end-seed')
   })
 })
diff --git a/packages/core/agent-loop/tests/properties.spec.ts b/packages/core/agent-loop/tests/properties.spec.ts
index 68e170f27e..bf3c723153 100644
--- a/packages/core/agent-loop/tests/properties.spec.ts
+++ b/packages/core/agent-loop/tests/properties.spec.ts
@@ -72,18 +72,21 @@ function recordStatus(ctx: Context, agent: Agent): { seen: string[]; dispose: ()
 }
 
 function userMessageTexts(agent: Agent): string[] {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return agent.session.snapshotEvents()
     .filter(e => e.type === 'user/message')
     .map(e => (e.data as { content: { type: string; text?: string }[] }).content.map(b => b.text ?? '').join(''))
 }
 
 function turnNumbers(agent: Agent): number[] {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return agent.session.snapshotEvents()
     .filter(e => e.type === 'turn/start')
     .map(e => e.data.turn)
 }
 
 function turnEndNumbers(agent: Agent): number[] {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return agent.session.snapshotEvents()
     .filter(e => e.type === 'turn/end')
     .map(e => (e.data as { turn: number }).turn)
@@ -91,6 +94,7 @@ function turnEndNumbers(agent: Agent): number[] {
 
 function userMessageCountsByTurn(agent: Agent): number[] {
   const counts: number[] = []
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   for (const event of agent.session.snapshotEvents()) {
     if (event.type === 'turn/start') counts.push(0)
     if (event.type === 'user/message') counts[counts.length - 1]! += 1
diff --git a/packages/core/agent-loop/tests/request-cache.e2e.ts b/packages/core/agent-loop/tests/request-cache.e2e.ts
index ceaa2b0b6d..5a1c912bc0 100644
--- a/packages/core/agent-loop/tests/request-cache.e2e.ts
+++ b/packages/core/agent-loop/tests/request-cache.e2e.ts
@@ -82,6 +82,7 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('log-derived request cache hits (
     agent.followup(createUserMessage({ content: [{ type: 'text', text: 'Thanks. Repeat that value one more time.' }], source: { kind: 'user' } }))
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const usages = agent.session.snapshotEvents()
       .filter(e => e.type === 'assistant/message')
       .map(e => e.data.usage)
diff --git a/packages/core/agent-loop/tests/request-error.spec.ts b/packages/core/agent-loop/tests/request-error.spec.ts
index 616a817082..f0ae238d80 100644
--- a/packages/core/agent-loop/tests/request-error.spec.ts
+++ b/packages/core/agent-loop/tests/request-error.spec.ts
@@ -92,12 +92,14 @@ describe('agent/request-error', () => {
         code: 'SERVICE_UNAVAILABLE',
       },
     ])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(1)
     expect(seen.map(item => item.retryPolicy)).toEqual([
       expect.objectContaining({ mode: 'normal' }),
       expect.objectContaining({ mode: 'normal' }),
     ])
     expect(statuses).toEqual(['running', 'idle'])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event =>
       event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial'])
   })
@@ -115,7 +117,9 @@ describe('agent/request-error', () => {
     await agent.whenIdle()
 
     expect(adapter.requests).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().find(event => event.type === 'turn/end')).toMatchObject({
       type: 'turn/end',
       data: { reason: { kind: 'aborted', reason: { kind: 'user' } } },
@@ -137,7 +141,9 @@ describe('agent/request-error', () => {
     await agent.whenIdle()
 
     expect(adapter.requests).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().find(event => event.type === 'turn/end')).toMatchObject({
       type: 'turn/end',
       data: { reason: { kind: 'error' } },
diff --git a/packages/core/agent-loop/tests/request-freeze.spec.ts b/packages/core/agent-loop/tests/request-freeze.spec.ts
index 560be88627..82261178fe 100644
--- a/packages/core/agent-loop/tests/request-freeze.spec.ts
+++ b/packages/core/agent-loop/tests/request-freeze.spec.ts
@@ -58,6 +58,7 @@ describe('loop-owned request freezing', () => {
       }),
       stream: [],
     }, { surfaceOp: 'append' })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = structuredClone(seed.snapshotEvents())
     const userEvent = events.find(event => event.type === 'user/message')!
     const assistantEvent = events.find(event => event.type === 'assistant/message')!
@@ -198,6 +199,7 @@ describe('loop-owned request freezing', () => {
       expect(() => request.stop!.push('mutate')).toThrow(TypeError)
       if (!registered) expect(request.stop).toBe(stops[index])
     }
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'request/header')).toHaveLength(1)
     expect(agent.session.requestHeader()!.tools).not.toBe(requests[0]!.tools)
     expect(agent.session.requestHeader()!.config.stop).not.toBe(requests[0]!.stop)
@@ -221,6 +223,7 @@ describe('loop-owned request freezing', () => {
       await agent.whenIdle()
       expect(request.signal!.aborted).toBe(true)
       expect(request.signal!.reason).toEqual({ kind: 'user' })
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
         type: 'turn/end', data: { reason: { kind: 'aborted', reason: { kind: 'user' } } },
       })
diff --git a/packages/core/agent-loop/tests/request-reconstruction.spec.ts b/packages/core/agent-loop/tests/request-reconstruction.spec.ts
index 2450a21999..e5ec05cb60 100644
--- a/packages/core/agent-loop/tests/request-reconstruction.spec.ts
+++ b/packages/core/agent-loop/tests/request-reconstruction.spec.ts
@@ -94,6 +94,7 @@ describe('request stability across the loop', () => {
       expect(Object.isFrozen(request.messages)).toBe(true)
     }
     // One anchoring header snapshot; no further header events (nothing changed).
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const headerEvents = agent.session.snapshotEvents().filter(e => e.type === 'request/header')
     expect(headerEvents).toHaveLength(1)
     expect(headerEvents[0]?.type === 'request/header' && headerEvents[0].data.reason).toBe('initial')
@@ -111,6 +112,7 @@ describe('request stability across the loop', () => {
 
     expect(adapter.requests).toHaveLength(2)
     expectPrefixExtension(adapter.requests[0]!, adapter.requests[1]!)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event =>
       event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial'])
   })
@@ -132,6 +134,7 @@ describe('request stability across the loop', () => {
     await waitForIdle(ctx, agent)
 
     expectPrefixExtension(adapter.requests[0]!, adapter.requests[1]!)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event =>
       event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial', 'series'])
   })
@@ -157,6 +160,7 @@ describe('request stability across the loop', () => {
     await waitForIdle(ctx, agent)
 
     expectPrefixExtension(adapter.requests[0]!, adapter.requests[1]!)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event => event.type === 'request/header'
       ? [{ reason: event.data.reason, startsSeries: event.data.startsSeries }]
       : [])).toEqual([
@@ -194,6 +198,7 @@ describe('request stability across the loop', () => {
     await waitForIdle(ctx, agent)
 
     expectPrefixExtension(adapter.requests[0]!, adapter.requests[1]!)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event =>
       event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial', 'series'])
   })
@@ -223,6 +228,7 @@ describe('request stability across the loop', () => {
       ReasoningEffortId('high'),
       ReasoningEffortId('max'),
     ])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const headers = agent.session.snapshotEvents().filter(event => event.type === 'request/header')
     expect(headers.map(event => event.data.header.config.reasoningEffort)).toEqual([
       ReasoningEffortId('high'),
@@ -242,6 +248,7 @@ describe('request stability across the loop', () => {
       const resumedCtx = await harness(resumedAdapter)
       const resumedHandle = await resumedCtx.agents.create({
         sessionId: SessionId(`effort-${model}`),
+        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         seed: structuredClone(agent.session.snapshotEvents()),
         agentOptions: { provider: 'mock', model },
       })
@@ -250,6 +257,7 @@ describe('request stability across the loop', () => {
 
       expect(resumedAdapter.requests[0]?.model).toBe(model)
       expect(resumedAdapter.requests[0]?.reasoningEffort).toBe(effort)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const resumedHeaders = resumedHandle.agent.session.snapshotEvents().filter(event => event.type === 'request/header')
       expect(resumedHeaders.at(-1)?.data.header.config.reasoningEffort).toBe(effort)
       expect(resumedHeaders.at(-1)?.data.reason).toBe('resume')
@@ -268,6 +276,7 @@ describe('request stability across the loop', () => {
     await waitForIdle(ctx, agent)
 
     expect(adapter.requests[0]?.maxTokens).toBe(256_000)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const header = agent.session.snapshotEvents().find(event => event.type === 'request/header')
     expect(header?.type === 'request/header' && header.data.header.config.maxTokens).toBe(256_000)
     expect(header?.type === 'request/header' && header.data.header.adapterDefaults)
@@ -299,6 +308,7 @@ describe('request stability across the loop', () => {
 
     expect(deepseek.requests[0]?.maxTokens).toBe(256_000)
     expect(other.requests[0]?.maxTokens).toBe(8_192)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const headers = agent.session.snapshotEvents().filter(event => event.type === 'request/header')
     expect(headers.map(event => event.data.header.config.maxTokens)).toEqual([256_000, 8_192])
     expect(headers.map(event => event.data.header.adapterDefaults)).toEqual([
@@ -333,6 +343,7 @@ describe('request stability across the loop', () => {
 
     expect(deepseek.requests[0]?.maxTokens).toBe(4_096)
     expect(other.requests[0]?.maxTokens).toBe(4_096)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const headers = agent.session.snapshotEvents().filter(event => event.type === 'request/header')
     expect(headers.map(event => event.data.header.config.maxTokens)).toEqual([4_096, 4_096])
     expect(headers.map(event => event.data.header.adapterDefaults)).toEqual([undefined, undefined])
@@ -385,6 +396,7 @@ describe('request stability across the loop', () => {
       ReasoningEffortId('high'),
     ])
     expect(second.requests).toHaveLength(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const headers = agent.session.snapshotEvents().filter(event => event.type === 'request/header')
     expect(headers.at(-1)?.data.header.config.reasoningEffort).toBe(ReasoningEffortId('high'))
   })
@@ -423,6 +435,7 @@ describe('request stability across the loop', () => {
     expect(signal.aborted).toBe(true)
     expect(handle.agent.status).toBe('idle')
     expect(adapter.requests).toHaveLength(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(handle.agent.session.snapshotEvents().some(event => event.type === 'request/header')).toBe(false)
   })
 
@@ -446,6 +459,7 @@ describe('request stability across the loop', () => {
       send(agent, 'go')
       await waitForIdle(ctx, agent)
 
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')).toMatchObject({
         data: {
           reason: failure instanceof LlmError
@@ -521,6 +535,7 @@ describe('request stability across the loop', () => {
     // The rewritten history: summary replaces turn 1's user+assistant pair behind the system prompt.
     expect(second.messages[0]!.role).toBe('system')
     expect(second.messages[1]!.content.some(b => b.type === 'text' && b.text.includes('[summary of turn 1]'))).toBe(true)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event => event.type === 'request/header'
       ? [{ reason: event.data.reason, startsSeries: event.data.startsSeries }]
       : [])).toEqual([
@@ -559,6 +574,7 @@ describe('request stability across the loop', () => {
     expect(adapter.requests[1]?.messages[1]?.content).toContainEqual({
       type: 'text', text: '[summary for retry]',
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event =>
       event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial', 'series'])
   })
@@ -572,6 +588,7 @@ describe('request stability across the loop', () => {
     await waitForIdle(ctx, agent)
     send(agent, 'second')
     await waitForIdle(ctx, agent)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event =>
       event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial'])
 
@@ -579,8 +596,10 @@ describe('request stability across the loop', () => {
     send(agent, 'third')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const snapshots = agent.session.snapshotEvents().filter(e => e.type === 'request/header')
     expect(snapshots.map(event => event.data.reason)).toEqual(['initial', 'series'])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const systemNodes = agent.session.snapshotEvents().filter(e => e.type === 'system/message')
     expect(systemNodes).toHaveLength(2)
     expect(systemNodes[1]?.surfaceOp).toEqual({ op: 'replace', startSeq: systemNodes[0]?.seq, endSeq: systemNodes[0]?.seq })
@@ -610,8 +629,10 @@ describe('request stability across the loop', () => {
     await waitForIdle(ctx, agent)
 
     // No new series: the header stays, node 0 stays, and the prompt update follows the cached prefix.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event =>
       event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial'])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const systemNodes = agent.session.snapshotEvents().filter(e => e.type === 'system/message')
     expect(systemNodes).toHaveLength(2)
     expect(systemNodes[1]?.surfaceOp).toBe('append')
@@ -625,6 +646,7 @@ describe('request stability across the loop', () => {
     // An unchanged prompt adds nothing on the next step.
     send(agent, 'fourth')
     await waitForIdle(ctx, agent)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(e => e.type === 'system/message')).toHaveLength(2)
     expectPrefixExtension(adapter.requests[2]!, adapter.requests[3]!)
   })
@@ -648,9 +670,11 @@ describe('request stability across the loop', () => {
     startSeries = true
     send(agent, 'second')
     await waitForIdle(ctx, agent)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     let systemNodes = agent.session.snapshotEvents().filter(e => e.type === 'system/message')
     expect(systemNodes).toHaveLength(2)
     expect(systemNodes[1]?.surfaceOp).toEqual({ op: 'replace', startSeq: systemNodes[0]?.seq, endSeq: systemNodes[0]?.seq })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event =>
       event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial', 'series'])
 
@@ -660,6 +684,7 @@ describe('request stability across the loop', () => {
     disposeSection = ctx.systemPrompt.section({ name: 'extra', order: 2, text: 'newer guidance' })
     send(agent, 'third')
     await waitForIdle(ctx, agent)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     systemNodes = agent.session.snapshotEvents().filter(e => e.type === 'system/message')
     expect(systemNodes).toHaveLength(3)
     expect(systemNodes[2]?.surfaceOp).toBe('append')
@@ -670,6 +695,7 @@ describe('request stability across the loop', () => {
     ctx.systemPrompt.section({ name: 'extra', order: 2, text: 'newest guidance' })
     send(agent, 'fourth')
     await waitForIdle(ctx, agent)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     systemNodes = agent.session.snapshotEvents().filter(e => e.type === 'system/message')
     expect(systemNodes).toHaveLength(5)
     expect(systemNodes[3]?.data.message.content).toEqual([])
@@ -703,10 +729,12 @@ describe('request stability across the loop', () => {
     send(agent, 'second')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const systemNodes = agent.session.snapshotEvents().filter(e => e.type === 'system/message')
     expect(systemNodes).toHaveLength(2)
     expect(systemNodes[1]?.surfaceOp).toEqual({ op: 'replace', startSeq: systemNodes[0]?.seq, endSeq: systemNodes[0]?.seq })
     expect(adapter.requests[1]!.messages.map(message => message.role)).toEqual(['system', 'user', 'user'])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event =>
       event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial', 'series'])
   })
@@ -725,8 +753,10 @@ describe('request stability across the loop', () => {
     send(agent, 'second')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const headers = agent.session.snapshotEvents().filter(e => e.type === 'request/header')
     expect(headers.map(event => [event.data.reason, event.data.startsSeries])).toEqual([['initial', undefined], ['change', true]])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const systemNodes = agent.session.snapshotEvents().filter(e => e.type === 'system/message')
     expect(systemNodes).toHaveLength(2)
     expect(systemNodes[1]?.surfaceOp).toEqual({ op: 'replace', startSeq: systemNodes[0]?.seq, endSeq: systemNodes[0]?.seq })
@@ -752,6 +782,7 @@ describe('request stability across the loop', () => {
     const first = adapter.requests[0]!
     // The inject landed in the log after the boundary: not in THIS request…
     expect(first.messages.some(m => m.content.some(b => b.type === 'text' && b.text.includes('[late context]')))).toBe(false)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'user/message' && e.data.source.kind === 'plugin')).toBe(true)
 
     send(agent, 'second')
@@ -779,6 +810,7 @@ describe('request stability across the loop', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')
     expect(turnEnd).toMatchObject({ data: { reason: { kind: 'error' } } })
     if (turnEnd?.type !== 'turn/end' || turnEnd.data.reason.kind !== 'error') throw new Error()
@@ -798,6 +830,7 @@ describe('request stability across the loop', () => {
     const ctx2 = await harness(adapter2)
     const handle = await ctx2.agents.create({
       sessionId: SessionId('gen2-session'),
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       seed: agent.session.snapshotEvents(),
       agentOptions: { provider: 'mock', model: 'mock' },
     })
@@ -805,11 +838,13 @@ describe('request stability across the loop', () => {
     send(agent2, 'second')
     await waitForIdle(ctx2, agent2)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const snapshots = agent2.session.snapshotEvents().filter(e => e.type === 'request/header')
     expect(snapshots).toHaveLength(2)
     expect(snapshots[1]?.data.reason).toBe('resume')
     // Identical header and an unchanged system node across the restart: byte-identical continuation.
     expect(adapter2.requests[0]!.messages[0]).toEqual(adapter.requests[0]!.messages[0])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent2.session.snapshotEvents().filter(event => event.type === 'system/message')).toHaveLength(1)
     expectPrefixExtension(adapter.requests[0]!, adapter2.requests[0]!)
   })
@@ -838,6 +873,7 @@ describe('request stability across the loop', () => {
 
     // The second turn reuses the same series and header; the session's own
     // fold remains immutable state.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event =>
       event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial'])
     expect(Object.isFrozen(agent.session.requestHeader())).toBe(true)
@@ -864,6 +900,7 @@ describe('request stability across the loop', () => {
     await waitForIdle(ctx, agent)
 
     expect(adapter.requests).toHaveLength(3)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = agent.session.snapshotEvents()
     const stepStarts = events.filter(e => e.type === 'step/start')
     expect(stepStarts).toHaveLength(3)
@@ -920,6 +957,7 @@ describe('request/context capacity records', () => {
     send(agent, 'second')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const records = agent.session.snapshotEvents().filter(event => event.type === 'request/context')
     expect(records).toHaveLength(1)
     expect(records[0]?.data).toEqual({ provider: 'mock', model: 'mock', contextWindow: 128_000 })
@@ -945,6 +983,7 @@ describe('request/context capacity records', () => {
     send(agent, 'second')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents()
       .filter(event => event.type === 'request/context')
       .map(event => event.data.contextWindow)).toEqual([64_000, 256_000])
@@ -957,6 +996,7 @@ describe('request/context capacity records', () => {
     await waitForIdle(ctx, agent)
     send(agent, 'second')
     await waitForIdle(ctx, agent)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents()
       .filter(event => event.type === 'request/context')
       .map(event => event.data)).toEqual([{ provider: 'mock', model: 'mock' }])
@@ -977,6 +1017,7 @@ describe('request/context capacity records', () => {
     send(agent, 'second')
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents()
       .filter(event => event.type === 'request/context')
       .map(event => event.data)).toEqual([
diff --git a/packages/core/agent-loop/tests/resume.spec.ts b/packages/core/agent-loop/tests/resume.spec.ts
index 271849eba3..838c3e7004 100644
--- a/packages/core/agent-loop/tests/resume.spec.ts
+++ b/packages/core/agent-loop/tests/resume.spec.ts
@@ -484,6 +484,7 @@ describe('the session-persistence Agent Note: AgentLoop factory create/resume',
     // Lifecycle 2: resume repairs the tail and stores the repair durably.
     const ctx2 = await mountPersistentHarness(root, new MockAdapter([]))
     const handle = await ctx2.agents.resume({ resumeSessionId: sessionId })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(handle.agent.session.snapshotEvents().map(event => event.type))
       .toEqual(['turn/start', 'turn/end', 'session/end-seed'])
     await handle.dispose()
@@ -552,6 +553,7 @@ describe('the session-persistence Agent Note: AgentLoop factory create/resume',
     // closers immediately after the committed prefix — no gap, no fragment.
     const ctx2 = await mountPersistentHarness(root, new MockAdapter([]), 'none')
     const handle = await ctx2.agents.resume({ resumeSessionId: sessionId })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(handle.agent.session.snapshotEvents().map(event => event.type))
       .toEqual(['turn/start', 'turn/end', 'session/end-seed'])
     await handle.dispose()
@@ -639,6 +641,7 @@ describe('the session-persistence Agent Note: AgentLoop factory create/resume',
       setup: async (agentCtx, agent) => {
         expect(agent.id).toBe(sessionId)
         // The two persisted events plus the end-seed marker.
+        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         expect(agent.session.snapshotEvents()).toHaveLength(3)
         agentCtx.on('session/created', () => void order.push('setup-listener:session/created'))
         agentCtx.on('agent/created', () => void order.push('setup-listener:agent/created'))
@@ -691,6 +694,7 @@ describe('the session-persistence Agent Note: AgentLoop factory create/resume',
     expect(stored.map(event => event.type)).toEqual(['turn/start', 'turn/end', 'session/end-seed'])
 
     const second = await ctx.agents.resume({ resumeSessionId: sessionId })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(second.agent.session.snapshotEvents().map(event => event.type))
       .toEqual(['turn/start', 'turn/end', 'session/end-seed'])
     await second.dispose()
@@ -983,6 +987,7 @@ describe('the session-persistence Agent Note: AgentLoop factory create/resume',
     const a1 = h1.agent
     a1.followup(createUserMessage({ content: [{ type: 'text', text: 'first question' }], source: { kind: 'user' } }))
     await waitForIdle(ctx1, a1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events1 = a1.session.snapshotEvents()
     const seqs1 = events1.map(e => e.seq)
     expect(seqs1).toEqual([...seqs1].sort((x, y) => x - y)) // contiguous
@@ -996,8 +1001,10 @@ describe('the session-persistence Agent Note: AgentLoop factory create/resume',
     // The resumed session carries the prior history…
     expect(a2.session.id).toBe('sess-resume')
     // …followed by one end-seed event marking the constructor seed.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(a2.session.snapshotEvents().length).toBe(events1.length + 1)
     expect(a2.session.firstLiveSeq).toBe(events1.length)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(a2.session.snapshotEvents().at(-1)?.type).toBe('session/end-seed')
     const replay = Session.create(SessionId('replay'), events1)
     expect(a2.session.deriveMessages()).toEqual(replay.deriveMessages())
@@ -1005,8 +1012,10 @@ describe('the session-persistence Agent Note: AgentLoop factory create/resume',
     // …and a new turn continues numbering (turn 2) with contiguous seqs.
     a2.followup(createUserMessage({ content: [{ type: 'text', text: 'second question' }], source: { kind: 'user' } }))
     await waitForIdle(ctx2, a2)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const allSeqs = a2.session.snapshotEvents().map(e => e.seq)
     expect(allSeqs).toEqual(allSeqs.map((_, i) => i)) // 0..N contiguous, no duplicates
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnStarts = a2.session.snapshotEvents().filter(e => e.type === 'turn/start')
     expect(turnStarts.map(e => e.type === 'turn/start' && e.data.turn)).toEqual([1, 2])
     await ctx2.fiber.dispose()
diff --git a/packages/core/agent-loop/tests/scope-lifecycle.spec.ts b/packages/core/agent-loop/tests/scope-lifecycle.spec.ts
index 81bfc64abd..851701a646 100644
--- a/packages/core/agent-loop/tests/scope-lifecycle.spec.ts
+++ b/packages/core/agent-loop/tests/scope-lifecycle.spec.ts
@@ -809,6 +809,7 @@ describe('agent scope lifecycle', () => {
     expect(statuses).toEqual([])
     expect(observerSawLive).toBe(true)
     expect(scopeDisposed).toBe(true)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(announced.session.snapshotEvents()).toEqual([])
     expect(ctx.agents.get(SessionId('session-start-dispose-s'))).toBeUndefined()
     expect(ctx.sessions.get(SessionId('session-start-dispose-s'))).toBeUndefined()
@@ -1114,8 +1115,10 @@ describe('agent scope lifecycle', () => {
     // are empty and nothing still drives the detached session.
     expect(ctx.agents.get(agent.id)).toBeUndefined()
     expect(ctx.sessions.get(agent.id)).toBeUndefined()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const eventsAfter = agent.session.snapshotEvents().length
     await new Promise(resolve => setTimeout(resolve, 30))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().length).toBe(eventsAfter)
     await ctx.fiber.dispose()
   })
diff --git a/packages/core/agent-loop/tests/system-prompt-admission.spec.ts b/packages/core/agent-loop/tests/system-prompt-admission.spec.ts
index d3702147f6..e57df3e855 100644
--- a/packages/core/agent-loop/tests/system-prompt-admission.spec.ts
+++ b/packages/core/agent-loop/tests/system-prompt-admission.spec.ts
@@ -39,6 +39,7 @@ async function harness(capable = new MockAdapter(Array.from({ length: 8 }, () =>
   ctx.on('llm/stream', (request, next) => {
     // Rebuild from copied source events, not the live projection's cached state.
     const subject = ctx.agents.get(request.sessionId!)!
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const replay = Session.create(subject.id, subject.session.snapshotEvents())
     expect(request.messages).toEqual(replay.deriveMessages())
     expect(request.system).toBeUndefined()
@@ -83,21 +84,26 @@ describe('prepared-route prompt admission', () => {
     expect(systemTexts(cleared)).toEqual([])
     expect(toPiContext(cleared).systemPrompt).toBeUndefined()
     expect(JSON.stringify(toPiContext(cleared))).not.toContain('prompt ')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const clearEvents = h.agent.session.snapshotEvents().filter(event => event.type === 'system/message').filter(event => event.data.turn === 4)
     expect(clearEvents).toHaveLength(3)
     for (const event of clearEvents) {
       expect(event.data.message.content).toEqual([])
       expect(event.surfaceOp).toEqual({ op: 'replace', startSeq: event.sourceEventSeqs?.[0], endSeq: event.sourceEventSeqs?.[0] })
     }
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const count = h.agent.session.snapshotEvents().filter(event => event.type === 'system/message').length
     await send(h.agent, 'still clear')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(h.agent.session.snapshotEvents().filter(event => event.type === 'system/message')).toHaveLength(count)
     expect(systemTexts(adapter.requests.at(-1)!)).toEqual([])
     const { agent: resumed } = await h.ctx.agents.create({
       sessionId: SessionId('cleared-resume'), agentOptions: { provider, model: 'model' },
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       seed: [...h.agent.session.snapshotEvents()],
     })
     await send(resumed, 'resume clear')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(resumed.session.snapshotEvents().filter(event => event.type === 'system/message')).toHaveLength(count)
     expect(systemTexts(adapter.requests.at(-1)!)).toEqual([])
     h.setPrompt('restored instruction')
@@ -124,6 +130,7 @@ describe('prepared-route prompt admission', () => {
     }
     await send(h.agent, 'third')
     expectPlain(h.capable.requests[2]!, 'prompt two')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const header = h.agent.session.snapshotEvents().filter(event => event.type === 'request/header').at(-1)
     expect(header?.data.reason).toBe(reason === 'explicit' ? 'series' : 'change')
     if (reason === 'tools') expect(header?.data.startsSeries).toBe(true)
@@ -147,6 +154,7 @@ describe('prepared-route prompt admission', () => {
       expect(failure.code).toBe('CONTEXT_LENGTH')
       if (attempts++ === 0) {
         const nodes = h.agent.session.surface.nodes
+        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         const latest = nodes.findLast(seq => h.agent.session.eventAt(seq)?.type === 'system/message')!
         const start = retainOlder ? latest : nodes[1]!
         const replaced = nodes.slice(nodes.indexOf(start), nodes.indexOf(latest) + 1)
@@ -166,6 +174,7 @@ describe('prepared-route prompt admission', () => {
     expectPlain(adapter.requests[3]!, 'prompt three')
     expect(adapter.requests[4]!.messages).toEqual(adapter.requests[3]!.messages)
     expect(adapter.requests[3]!.messages.at(-1)?.content).toEqual([{ type: 'text', text: 'third' }])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = h.agent.session.snapshotEvents()
     expect(events.filter(event => event.type === 'step/start')).toHaveLength(3)
     expect(events.filter(event => event.type === 'user/message' && event.data.source.kind === 'user')).toHaveLength(3)
@@ -183,6 +192,7 @@ describe('prepared-route prompt admission', () => {
     if (changed) h.setPrompt('prompt three')
     await send(h.agent, 'third')
     expectPlain(h.plain.requests[0]!, changed ? 'prompt three' : 'prompt two')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = h.agent.session.snapshotEvents()
     const replacements = events.filter(event => event.type === 'system/message').filter(event => event.surfaceOp !== 'append')
     expect(replacements).toHaveLength(2)
@@ -191,6 +201,7 @@ describe('prepared-route prompt admission', () => {
       expect(event.surfaceOp).toEqual({ op: 'replace', startSeq: event.sourceEventSeqs?.[0], endSeq: event.sourceEventSeqs?.[0] })
     }
     await send(h.agent, 'fourth')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(h.agent.session.snapshotEvents().filter(event => event.type === 'system/message')).toHaveLength(4)
     expectPlain(h.plain.requests[1]!, changed ? 'prompt three' : 'prompt two')
   })
@@ -214,6 +225,7 @@ describe('prepared-route prompt admission', () => {
     expect(messages.slice(-2).map(message => message.content)).toEqual([
       [{ type: 'text', text: 'second' }], notice,
     ])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const notices = h.agent.session.snapshotEvents().filter(event => event.type === 'user/message'
       && event.data.source.kind === 'plugin' && event.data.source.plugin === 'model-selection')
     expect(notices).toHaveLength(1)
@@ -230,10 +242,12 @@ describe('prepared-route prompt admission', () => {
     await send(h.agent, 'second')
     const { agent: resumed } = await h.ctx.agents.create({
       sessionId: SessionId('resumed-capable'), agentOptions: { provider: 'capable', model: 'model' },
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       seed: [...h.agent.session.snapshotEvents()],
     })
     h.ctx.on('agent/pre-step', ({ agent }, next) => {
       if (agent === resumed && replace) {
+        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         const seq = agent.session.surface.nodes.find(seq => agent.session.eventAt(seq)?.type === 'user/message')!
         agent.session.append('user/message', createUserMessage({
           content: [{ type: 'text', text: 'compacted history' }], source: { kind: 'plugin', plugin: 'test-compaction' },
@@ -245,6 +259,7 @@ describe('prepared-route prompt admission', () => {
     expect(systemTexts(h.capable.requests[2]!)).toEqual(replace
       ? [[{ type: 'text', text: 'prompt two' }]]
       : [[{ type: 'text', text: 'prompt one' }], [{ type: 'text', text: 'prompt two' }]])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(resumed.session.snapshotEvents().filter(event => event.type === 'request/header').map(event => event.data.reason))
       .toEqual(['initial', 'resume'])
   })
@@ -254,10 +269,12 @@ describe('prepared-route prompt admission', () => {
     await send(h.agent, 'first')
     h.setPrompt('prompt two')
     await send(h.agent, 'second')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const seed = h.agent.session.snapshotEvents()
     const { agent: resumed } = await h.ctx.agents.create({ sessionId: SessionId('resumed'), agentOptions: { provider: 'plain', model: 'model' }, seed: [...seed] })
     await send(resumed, 'resume')
     expectPlain(h.plain.requests[0]!, 'prompt two')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(resumed.session.snapshotEvents().filter(event => event.type === 'request/header').at(-1)?.data.reason).toBe('resume')
   })
 
@@ -266,6 +283,7 @@ describe('prepared-route prompt admission', () => {
     const entered = Promise.withResolvers<undefined>()
     const release = Promise.withResolvers<undefined>()
     const observe = async () => {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const types = h.agent.session.snapshotEvents().map(event => event.type)
       expect(types).toContain('step/start')
       expect(types).not.toContain('system/message')
@@ -285,6 +303,7 @@ describe('prepared-route prompt admission', () => {
     release.resolve(undefined)
     await h.agent.whenIdle()
     expect(h.capable.requests).toHaveLength(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const types = h.agent.session.snapshotEvents().map(event => event.type)
     expect(types.filter(type => type === 'step/start' || type === 'step/end')).toEqual(['step/start', 'step/end'])
     expect(types.filter(type => ['system/message', 'user/message', 'request/header'].includes(type))).toEqual([])
@@ -303,6 +322,7 @@ describe('prepared-route prompt admission', () => {
     expect(h.plain.requests).toHaveLength(0)
     expect(h.capable.requests[1]).toMatchObject({ provider: 'capable', temperature: 0.5, maxTokens: 100 })
     expect(systemTexts(h.capable.requests[1]!)).toHaveLength(2)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(h.agent.session.snapshotEvents().filter(event => event.type === 'user/message')).toHaveLength(2)
   })
 })
diff --git a/packages/core/agent-loop/tests/tool-calls.spec.ts b/packages/core/agent-loop/tests/tool-calls.spec.ts
index 74871d4a0d..dc6f783139 100644
--- a/packages/core/agent-loop/tests/tool-calls.spec.ts
+++ b/packages/core/agent-loop/tests/tool-calls.spec.ts
@@ -42,6 +42,7 @@ function waitForIdle(ctx: Context, agent: Agent): Promise<void> {
 }
 
 function events(agent: Agent): readonly SessionEvent[] {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return agent.session.snapshotEvents()
 }
 
diff --git a/packages/core/agent-loop/tests/tool-order.spec.ts b/packages/core/agent-loop/tests/tool-order.spec.ts
index 287f5fe761..e4c05be289 100644
--- a/packages/core/agent-loop/tests/tool-order.spec.ts
+++ b/packages/core/agent-loop/tests/tool-order.spec.ts
@@ -69,6 +69,7 @@ async function runTurn(registrationOrder: string[], toolOrder?: SystemPromptConf
 describe('loop-level canonical tool order', () => {
   it('logs the request/header with tools in canonical order, not registration order', async () => {
     const { agent, adapter } = await runTurn(['zulu', 'alpha', 'mike'])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const header = foldRequestHeader(agent.session.snapshotEvents())
     expect(header?.tools?.map(tool => tool.name)).toEqual(['alpha', 'mike', 'zulu'])
     // The dispatched request is built FROM the logged header (whose tools the
@@ -82,6 +83,7 @@ describe('loop-level canonical tool order', () => {
   it('produces the same header order for any registration order', async () => {
     const first = await runTurn(['alpha', 'mike', 'zulu'])
     const second = await runTurn(['zulu', 'mike', 'alpha'])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const names = (run: typeof first) => foldRequestHeader(run.agent.session.snapshotEvents())?.tools?.map(tool => tool.name)
     expect(names(first)).toEqual(['alpha', 'mike', 'zulu'])
     expect(names(second)).toEqual(names(first))
@@ -89,6 +91,7 @@ describe('loop-level canonical tool order', () => {
 
   it('honors a configured toolOrder in the logged header and the dispatched request', async () => {
     const { agent, adapter } = await runTurn(['alpha', 'zulu', 'mike'], ['zulu', TOOL_ORDER_REST])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const header = foldRequestHeader(agent.session.snapshotEvents())
     expect(header?.tools?.map(tool => tool.name)).toEqual(['zulu', 'alpha', 'mike'])
     expect(adapter.requests[0]?.tools?.map(tool => tool.name)).toEqual(['zulu', 'alpha', 'mike'])
@@ -103,10 +106,15 @@ describe('loop-level canonical tool order', () => {
     agent.followup(createUserMessage({ content: [{ type: 'text', text: 'go' }], source: { kind: 'user' } }))
     await waitForIdle(ctx, agent)
     expect(adapter.requests).toHaveLength(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldRequestHeader(agent.session.snapshotEvents())).toBeUndefined()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'turn/start')).toBe(true)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'turn/end')).toBe(true)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'step/start')).toBe(false)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'step/end')).toBe(false)
   })
 })
diff --git a/packages/core/agent/tests/consumed-work.spec.ts b/packages/core/agent/tests/consumed-work.spec.ts
index 26808c5c81..221a5f7d0f 100644
--- a/packages/core/agent/tests/consumed-work.spec.ts
+++ b/packages/core/agent/tests/consumed-work.spec.ts
@@ -40,6 +40,7 @@ describe('foldConsumedWork', () => {
     const session = Session.create(SessionId('empty'))
     accept(session, 'queued')
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldConsumedWork(session.snapshotEvents())).toEqual({ droppedUnrun: false })
   })
 
@@ -48,6 +49,7 @@ describe('foldConsumedWork', () => {
     steppedTurn(session, 1, { kind: 'completed' })
     steppedTurn(session, 2, { kind: 'max-tokens' })
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldConsumedWork(session.snapshotEvents()).end?.data)
       .toEqual({ turn: 2, reason: { kind: 'max-tokens' } })
   })
@@ -61,6 +63,7 @@ describe('foldConsumedWork', () => {
     claim(session)
     session.append('turn/end', { turn: 2, reason: { kind: 'error', error: { message: 'ENOSPC', code: 'UNKNOWN' } } })
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldConsumedWork(session.snapshotEvents()).end?.data.turn).toBe(2)
   })
 
@@ -71,6 +74,7 @@ describe('foldConsumedWork', () => {
     claim(session)
     session.append('turn/end', { turn: 2, reason: { kind: 'aborted', reason: { kind: 'user' } } })
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldConsumedWork(session.snapshotEvents()).end?.data.turn).toBe(2)
   })
 
@@ -85,6 +89,7 @@ describe('foldConsumedWork', () => {
     session.append('turn/end', { turn: 4, reason: { kind: 'blocked' } })
 
     // None of these turns describes work: they opened, found nothing of their own, and closed.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldConsumedWork(session.snapshotEvents()).end?.data.turn).toBe(1)
   })
 
@@ -97,6 +102,7 @@ describe('foldConsumedWork', () => {
 
     // Rejection does not retain the claimed messages, so the `blocked` end is
     // the only account of input that will never run.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldConsumedWork(session.snapshotEvents()).end?.data.turn).toBe(2)
   })
 
@@ -109,6 +115,7 @@ describe('foldConsumedWork', () => {
 
     // An emptied claim ran nothing and dropped nothing: a listener rewrote the
     // batch away, which is not this log's account of the work.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldConsumedWork(session.snapshotEvents()).end?.data.turn).toBe(1)
   })
 
@@ -120,6 +127,7 @@ describe('foldConsumedWork', () => {
     claim(session)
     session.append('turn/end', { turn: 2, reason: { kind: 'aborted', reason: { kind: 'user' } } })
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldConsumedWork(session.snapshotEvents()).end?.data.turn).toBe(1)
   })
 
@@ -130,7 +138,9 @@ describe('foldConsumedWork', () => {
     cancelPending(session)
 
     // No turn opened over it, so only the cancellation says the work was cut short.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldConsumedWork(session.snapshotEvents())).toEqual({
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       end: session.snapshotEvents().find(event => event.type === 'turn/end'),
       droppedUnrun: true,
     })
@@ -143,6 +153,7 @@ describe('foldConsumedWork', () => {
       target: 'next-turn', start: 0, removedCount: 1, inserted: [message('rewritten')], outcome: 'canceled',
     })
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldConsumedWork(session.snapshotEvents()).droppedUnrun).toBe(false)
   })
 
@@ -152,7 +163,9 @@ describe('foldConsumedWork', () => {
     cancelPending(session)
     steppedTurn(session, 2, { kind: 'completed' })
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldConsumedWork(session.snapshotEvents())).toEqual({
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       end: session.snapshotEvents().findLast(event => event.type === 'turn/end'),
       droppedUnrun: false,
     })
diff --git a/packages/core/session/src/index.ts b/packages/core/session/src/index.ts
index 68577578dd..dbf124893e 100644
--- a/packages/core/session/src/index.ts
+++ b/packages/core/session/src/index.ts
@@ -649,6 +649,7 @@ export class Session {
    * @returns a fresh array containing child-owned events in log order.
    */
   ownEvents(): readonly SessionEvent[] {
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     return this.snapshotEvents(this.inheritedEventCount)
   }
 
@@ -1214,6 +1215,7 @@ export class SessionStore extends Service {
   }
 
   private _forkSeed(session: Session, requestedBoundary: SessionSeq | undefined): readonly SessionEvent[] {
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const lastEvent = session.snapshotEvents().at(-1)
     let boundary: SessionSeq
     if (requestedBoundary !== undefined) {
@@ -1236,6 +1238,7 @@ export class SessionStore extends Service {
       )
     }
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const boundaryEvent = session.eventAt(boundary)
     if (boundaryEvent === undefined || boundaryEvent.seq !== boundary) {
       throw new SessionForkError(
@@ -1243,6 +1246,7 @@ export class SessionStore extends Service {
         'INVALID_BOUNDARY',
       )
     }
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = session.snapshotEvents(SessionLogOffset(0), SessionLogOffset(boundary + 1))
     const lastTurnBoundary = events
       .findLast(event => event.type === 'turn/start' || event.type === 'turn/end')
diff --git a/packages/core/session/src/invariant.ts b/packages/core/session/src/invariant.ts
index 6ed0b6b3c5..be4b214c86 100644
--- a/packages/core/session/src/invariant.ts
+++ b/packages/core/session/src/invariant.ts
@@ -210,6 +210,7 @@ const install: InvariantInstaller = Object.assign((ctx: Context, fail: Invariant
   const seedSession = (session: Session): SessionTrace => {
     const trace = freshTrace()
     traces.set(session, trace)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     for (const event of session.snapshotEvents()) {
       applyTransition(trace, validateEvent(trace, event, fail))
     }
diff --git a/packages/core/session/tests/canonical-envelopes.spec.ts b/packages/core/session/tests/canonical-envelopes.spec.ts
index 123852762d..3177f333d6 100644
--- a/packages/core/session/tests/canonical-envelopes.spec.ts
+++ b/packages/core/session/tests/canonical-envelopes.spec.ts
@@ -121,6 +121,7 @@ describe('canonical event payload acceptance', () => {
         expect(copy).toEqual(event)
         if (path === 'adopt' || path === 'snapshot') expect(accept(copy)).toEqual(event)
       }
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(Session.create(id, [event]).eventAt(SessionSeq(0))).toEqual(event)
     }
   })
@@ -178,6 +179,7 @@ describe('canonical event payload acceptance', () => {
       const prepared = ctx.sessions.prepare(id, {
         seed: [event], meta: { ...header }, inheritedEventCount: SessionLogOffset(0), eventState,
       })
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(prepared.eventAt(SessionSeq(0))).toBe(event)
       expect(prepared.requestHeader()).toEqual({ config })
       expect(ctx.sessions.get(id)).toBeUndefined()
@@ -203,6 +205,7 @@ describe('canonical event payload acceptance', () => {
       const published = vi.fn()
       ctx.on('session/created', created)
       ctx.on('session/event', published)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const events = session.snapshotEvents()
       const messages = session.deriveMessages()
       for (const { event } of invalidData) {
@@ -210,6 +213,7 @@ describe('canonical event payload acceptance', () => {
         expect(() => ctx.sessions.create(SessionId('invalid-seed'), { seed: [event] })).toThrow()
         expect(ctx.sessions.get(SessionId('invalid-seed'))).toBeUndefined()
         expect(session.seq).toBe(0)
+        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         expect(session.snapshotEvents()).toBe(events)
         expect(session.surface.nodes).toEqual([])
         expect(session.surface.replaceGeneration).toBe(0)
@@ -279,6 +283,7 @@ describe('canonical event-local surface metadata', () => {
       expect(() => accept(structuredClone(event))).not.toThrow()
     }
     const session = Session.create(id, [event])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.eventAt(SessionSeq(0))).toEqual(event)
     expect(session.surface.nodes).toEqual([])
     expect(session.deriveMessages()).toEqual([])
diff --git a/packages/core/session/tests/derived-cache.spec.ts b/packages/core/session/tests/derived-cache.spec.ts
index 21d2b7153b..35bf0fa15d 100644
--- a/packages/core/session/tests/derived-cache.spec.ts
+++ b/packages/core/session/tests/derived-cache.spec.ts
@@ -16,6 +16,7 @@ function userText(session: Session, text: string): void {
 
 /** From-scratch oracle: replay the log into a fresh session and derive. */
 function scratch(session: Session): unknown {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return Session.create(SessionId(`${session.id}-scratch-${session.seq}`), session.snapshotEvents()).deriveMessages()
 }
 
diff --git a/packages/core/session/tests/fork.spec.ts b/packages/core/session/tests/fork.spec.ts
index d67538ded8..a62019e23c 100644
--- a/packages/core/session/tests/fork.spec.ts
+++ b/packages/core/session/tests/fork.spec.ts
@@ -47,6 +47,7 @@ function firstUserMessage(events: readonly SessionEvent[]): SessionEvent<'user/m
 }
 
 function lastSeq(session: Session): SessionSeq {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   const event = session.snapshotEvents().at(-1)
   if (event === undefined) throw new Error('missing last event')
   return event.seq
@@ -54,6 +55,7 @@ function lastSeq(session: Session): SessionSeq {
 
 /** A seeded child's fork-inherited prefix. */
 function inherited(session: Session): readonly SessionEvent[] {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return session.snapshotEvents(SessionLogOffset(0), session.inheritedEventCount)
 }
 
@@ -81,13 +83,19 @@ describe('SessionStore.fork', () => {
 
     const child = sessions.fork(SessionId('parent'), undefined, SessionId('child'))
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(inherited(child)).toEqual(source.snapshotEvents())
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.snapshotEvents()).not.toBe(source.snapshotEvents())
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.snapshotEvents()[1]).not.toBe(source.snapshotEvents()[1])
     expect(() => {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       firstUserMessage(child.snapshotEvents()).data.content[0] = { type: 'text', text: 'child mutation' }
     }).toThrow(TypeError)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(firstUserMessage(source.snapshotEvents()).data.content).toEqual([{ type: 'text', text: 'hello' }])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(firstUserMessage(child.snapshotEvents()).data.content).toEqual([{ type: 'text', text: 'hello' }])
     expect(child.header).toMatchObject({
       id: SessionId('child'),
@@ -106,6 +114,7 @@ describe('SessionStore.fork', () => {
 
     const child = sessions.fork(source, undefined, SessionId('log-only-child'))
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(inherited(child)).toEqual(source.snapshotEvents())
     expect(inherited(child).at(-1)).toMatchObject({
       type: 'test/log-only',
@@ -123,6 +132,7 @@ describe('SessionStore.fork', () => {
 
     const child = sessions.fork(source, firstBoundary, SessionId('child-from-first'))
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(inherited(child)).toEqual(source.snapshotEvents().slice(0, firstBoundary + 1))
     expect(child.inheritedEventCount).toBe(firstBoundary + 1)
     expect(child.deriveMessages()).toEqual([{
@@ -166,9 +176,12 @@ describe('SessionStore.fork', () => {
     const child = sessions.fork(parent, undefined, SessionId('bracket-child'))
 
     // Parent: no end-seed event follows the bracket, so its owner treats it as live.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(parent.snapshotEvents().at(-1)).toBe(open)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(parent.snapshotEvents().some(event => event.type === 'session/end-seed')).toBe(false)
     // Child: the same bracket is before end-seed, so it belongs to the seed.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const boundary = child.snapshotEvents().at(-1)
     expect(boundary).toMatchObject({ type: 'session/end-seed' })
     expect(boundary!.seq).toBeGreaterThan(open.seq)
diff --git a/packages/core/session/tests/invariant.spec.ts b/packages/core/session/tests/invariant.spec.ts
index 9b8b281cf5..778e4b560f 100644
--- a/packages/core/session/tests/invariant.spec.ts
+++ b/packages/core/session/tests/invariant.spec.ts
@@ -83,6 +83,7 @@ describe('session-log invariants', () => {
     expect(() => session.append('turn/start', {
       turn: 1,
     })).toThrow('later dispatch veto')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([])
     expect(() => {
       session.append('turn/start', { turn: 1 })
@@ -428,6 +429,7 @@ describe('session-log invariants', () => {
     const open = ctx.sessions.create(SessionId('inherited-inside-open-turn'), { seed: [
       { type: 'turn/start', seq: SessionSeq(0), time: 1, data: { turn: 1 } },
     ] })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(open.snapshotEvents().map(event => event.type)).toEqual(['turn/start', 'session/end-seed'])
     // Still open afterwards: the boundary moves no cursor.
     expect(() => open.append('turn/start', { turn: 2 }))
diff --git a/packages/core/session/tests/properties.spec.ts b/packages/core/session/tests/properties.spec.ts
index 07bf37ac02..200a1107f0 100644
--- a/packages/core/session/tests/properties.spec.ts
+++ b/packages/core/session/tests/properties.spec.ts
@@ -107,6 +107,7 @@ describe('Session properties', () => {
   it('seq is strictly monotonic and zero-based contiguous', () => {
     fc.assert(fc.property(logArb, (events) => {
       const session = build(events)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       session.snapshotEvents().forEach((event, i) => { expect(event.seq).toBe(i) })
       expect(session.seq).toBe(events.length)
     }))
@@ -115,9 +116,11 @@ describe('Session properties', () => {
   it('replay-from-seed reproduces the derivation identically', () => {
     fc.assert(fc.property(logArb, (events) => {
       const original = build(events)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const replayed = Session.create(SessionId(`replay-${counter++}`), original.snapshotEvents())
       expect(replayed.deriveMessages()).toEqual(original.deriveMessages())
       // Every explicit replay grows by exactly one log-only boundary.
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(replayed.snapshotEvents().slice(0, original.seq)).toEqual(original.snapshotEvents())
       expect(replayed.seq).toBe(original.seq + 1)
     }))
@@ -126,9 +129,12 @@ describe('Session properties', () => {
   it('replaying a log that already ends in end-seed adds no further marker', () => {
     fc.assert(fc.property(logArb, (events) => {
       const original = build(events)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const once = Session.create(SessionId(`idem-a-${counter++}`), original.snapshotEvents())
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const twice = Session.create(SessionId(`idem-b-${counter++}`), once.snapshotEvents())
       // Lazy resume makes browsing a pickup, so this must not grow per open.
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(twice.snapshotEvents()).toEqual(once.snapshotEvents())
     }))
   })
@@ -162,6 +168,7 @@ describe('Session properties', () => {
     fc.assert(fc.property(logArb, (events) => {
       const session = build(events)
       const messages = session.deriveMessages()
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const before = structuredClone(session.snapshotEvents())
       for (const m of messages) {
         expect(['user', 'assistant', 'system']).toContain(m.role)
@@ -170,6 +177,7 @@ describe('Session properties', () => {
         expect(Object.isFrozen(m)).toBe(true)
         expect(() => { m.content.push({ type: 'text', text: 'mutation' }) }).toThrow(TypeError)
       }
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(session.snapshotEvents()).toEqual(before)
     }))
   })
diff --git a/packages/core/session/tests/request-header.spec.ts b/packages/core/session/tests/request-header.spec.ts
index c7b2719b6e..5aa4a5695b 100644
--- a/packages/core/session/tests/request-header.spec.ts
+++ b/packages/core/session/tests/request-header.spec.ts
@@ -80,6 +80,7 @@ describe('foldRequestHeader', () => {
       content: [{ type: 'text', text: 'hi' }], source: { kind: 'user' },
     }), { surfaceOp: 'append' })
     session.append('request/header', { header: { config: { provider: 'mock', model: 'other' } }, reason: 'change' })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldRequestHeader(session.snapshotEvents())).toEqual({ config: { provider: 'mock', model: 'other' } })
   })
 })
diff --git a/packages/core/session/tests/sequence-types.spec.ts b/packages/core/session/tests/sequence-types.spec.ts
index d20d2c721f..b6aaee8a16 100644
--- a/packages/core/session/tests/sequence-types.spec.ts
+++ b/packages/core/session/tests/sequence-types.spec.ts
@@ -69,11 +69,13 @@ describe('Session log positions', () => {
       isSeeded: true,
     }
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const child = Session.create(id, source.snapshotEvents(), header, source.seq)
 
     expect(child.header.isSeeded).toBe(true)
     expect('seedLength' in child.header).toBe(false)
     expect(child.inheritedEventCount).toBe(2)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.ownEvents().map(event => event.type)).toEqual(['session/end-seed'])
     expect(child.isOwnSeq(SessionSeq(1))).toBe(false)
     expect(child.isOwnSeq(SessionSeq(2))).toBe(true)
@@ -90,6 +92,7 @@ describe('Session log positions', () => {
     parent.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
     const id = SessionId('suffix-child')
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const child = Session.create(id, parent.snapshotEvents(), {
       version: SESSION_FORMAT_VERSION,
       id,
@@ -98,6 +101,7 @@ describe('Session log positions', () => {
     }, parent.seq)
     child.append('request/context', { provider: 'provider', model: 'model' })
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.ownEvents().map(event => event.type)).toEqual([
       'session/end-seed',
       'request/context',
diff --git a/packages/core/session/tests/session.spec.ts b/packages/core/session/tests/session.spec.ts
index d6762ba147..ed5dfe46d4 100644
--- a/packages/core/session/tests/session.spec.ts
+++ b/packages/core/session/tests/session.spec.ts
@@ -71,6 +71,7 @@ describe('Session', () => {
     session.append('turn/start', { turn: 1 })
     session.append('turn/end', { turn: 1, reason: { kind: 'max-tokens' } })
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = session.snapshotEvents().findLast(e => e.type === 'turn/end')!
     expect(turnEnd.data.reason).toEqual({ kind: 'max-tokens' })
     // survives a structuredClone (the persistence-serialization boundary)
@@ -81,8 +82,11 @@ describe('Session', () => {
     const session = Session.create(SessionId('aborted'))
     session.append('turn/start', { turn: 1 })
     session.append('turn/end', { turn: 1, reason: { kind: 'aborted', reason: { kind: 'user' } } })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const replayed = Session.create(SessionId('aborted-replay'), structuredClone(session.snapshotEvents()))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(replayed.snapshotEvents().slice(0, -1)).toEqual(session.snapshotEvents())
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = replayed.snapshotEvents().findLast(event => event.type === 'turn/end')
     expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason)
       .toEqual({ kind: 'aborted', reason: { kind: 'user' } })
@@ -115,6 +119,7 @@ describe('Session', () => {
     session.append('user/message', message, { surfaceOp: 'append' })
 
     expect(session.deriveMessages()).toEqual([message])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const event = session.snapshotEvents()[0]
     expect(event?.type === 'user/message' && event.data.source).toEqual({ kind: 'plugin', plugin: 'agent-instructions' })
   })
@@ -139,9 +144,11 @@ describe('Session', () => {
     }, { surfaceOp: 'append' })
     original.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const replayed = Session.create(SessionId('s3-replay'), original.snapshotEvents())
     expect(replayed.deriveMessages()).toEqual(original.deriveMessages())
     // The seed verbatim, plus the end-seed event the constructor appends.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(replayed.snapshotEvents().slice(0, original.seq)).toEqual(original.snapshotEvents())
     expect(replayed.seq).toBe(original.seq + 1)
     expect(replayed.firstLiveSeq).toBe(original.seq)
@@ -149,16 +156,20 @@ describe('Session', () => {
 
   it('marks an explicitly empty seed without marking a fresh session', () => {
     const fresh = Session.create(SessionId('fresh-empty'))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(fresh.snapshotEvents()).toEqual([])
 
     const resumed = Session.create(SessionId('resumed-empty'), [])
     expect(resumed.firstLiveSeq).toBe(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(resumed.snapshotEvents()).toMatchObject([
       { type: 'session/end-seed', seq: 0, data: {} },
     ])
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const reopened = Session.create(SessionId('reopened-empty'), resumed.snapshotEvents())
     expect(reopened.firstLiveSeq).toBe(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(reopened.snapshotEvents()).toEqual(resumed.snapshotEvents())
   })
 
@@ -188,6 +199,7 @@ describe('Session', () => {
     const unrelatedPrimitiveData = {
       type: 'plugin/event', seq: 0, time: 1, data: null,
     } as unknown as SessionEvent
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(Session.create(SessionId('primitive-plugin-data'), [unrelatedPrimitiveData]).snapshotEvents().slice(0, 1))
       .toEqual([unrelatedPrimitiveData])
   })
@@ -250,6 +262,7 @@ describe('Session', () => {
       SessionLogOffset(0),
       'detached',
     )
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(restored.eventAt(SessionSeq(0))).toBe(mismatchedMessage)
     expect(Object.isFrozen(mismatchedMessage)).toBe(false)
   })
@@ -519,6 +532,7 @@ describe('Session', () => {
         reason: 'initial',
       },
     } as const
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(Session.create(SessionId('reasoning-effort'), [valid]).snapshotEvents()[0])
       .toEqual(valid)
 
@@ -549,6 +563,7 @@ describe('Session', () => {
         reason: 'initial',
       },
     } as const
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(Session.create(SessionId('adapter-defaults'), [valid]).snapshotEvents()[0]).toEqual(valid)
 
     for (const adapterDefaults of [
@@ -579,6 +594,7 @@ describe('Session', () => {
         isError: false,
       }),
     }, { surfaceOp: 'append' })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const before = structuredClone(session.snapshotEvents())
 
     // A misbehaving consumer tries to mutate the messages it was handed.
@@ -595,6 +611,7 @@ describe('Session', () => {
     messages.reverse()
 
     // The log is unchanged: deep-equal to the snapshot taken before mutation.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual(before)
     // And a fresh derivation still reflects the original content and order.
     expect(session.deriveMessages()[0]!.content).toEqual([{ type: 'text', text: 'original' }])
@@ -624,6 +641,7 @@ describe('Session', () => {
     cyclic['self'] = cyclic
     expect(bad(cyclic)).toThrow(/non-JSON-serializable/)
     // The rejected appends never entered the log.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(0)
   })
 
@@ -638,12 +656,14 @@ describe('Session', () => {
     })))
       .toThrow(/surface-eligible and requires a surfaceOp marker/)
     // The rejected append never entered the log (only turn/start is present).
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(1)
   })
 
   it('accepts dense arrays and nested plain objects', () => {
     const session = Session.create(SessionId('s6'))
     expect(() => session.append('user/message', { content: [{ type: 'text', text: 'x' }], source: { kind: 'user' }, extra: [1, 2, [3, { a: null, b: true }]] } as never, { surfaceOp: 'append' })).not.toThrow()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(1)
   })
 
@@ -688,6 +708,7 @@ describe('Session', () => {
       { type: 'turn/end' as const, seq: 2, time: 3, data: { turn: 1, reason: { kind: 'completed' as const } } },
     ] as SessionEvent[]
     const session = Session.create(SessionId('seed-ok'), goodSeed)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().slice(0, 3)).toEqual(goodSeed)
     expect(session.firstLiveSeq).toBe(3)
   })
@@ -713,6 +734,7 @@ describe('Session', () => {
     const session = Session.create(SessionId('seed-entry-snapshot'), seed)
 
     expect(reads).toBe(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().slice(0, 1)).toEqual([accepted])
   })
 
@@ -730,6 +752,7 @@ describe('Session', () => {
     const session = Session.create(SessionId('seed-nested-drift'), seed)
 
     expect(reads).toBe(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()[0]!.data).toEqual({ value: 'accepted' })
   })
 
@@ -791,6 +814,7 @@ describe('Session', () => {
 
     const session = Session.create(SessionId('seed-null-prototype'), [event])
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().slice(0, 1)).toEqual([{ ...event }])
   })
 
@@ -823,6 +847,7 @@ describe('Session', () => {
     }] as unknown as SessionEvent[]
 
     const session = Session.create(SessionId('seed-unstable-metadata'), seed)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const event = session.snapshotEvents()[1]!
     if (event.type !== 'user/message') throw new Error('test fixture must remain a user/message')
 
@@ -883,6 +908,7 @@ describe('Session', () => {
     const um = seed[1]!
     ;(um.data as { content: { type: 'text'; text: string }[] }).content[0]!.text = 'HACKED'
     ;(um.data as Record<string, unknown>)['injected'] = 1n // would have failed validation
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const logged = session.snapshotEvents()[1]!
     expect(logged.type === 'user/message' && (logged.data.content[0] as { text: string }).text).toBe('original')
     expect((logged.data as Record<string, unknown>)['injected']).toBeUndefined()
@@ -901,6 +927,7 @@ describe('Session', () => {
     // make session.snapshotEvents() diverge from the value that passed validation.
     data.content[0]!.text = 'HACKED'
     ;(data as Record<string, unknown>)['injected'] = 1n
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const logged = session.snapshotEvents()[0]!
     expect(logged.type === 'user/message' && (logged.data.content[0] as { text: string }).text).toBe('original')
     expect((logged.data as Record<string, unknown>)['injected']).toBeUndefined()
@@ -923,6 +950,7 @@ describe('Session', () => {
 
     expect(reads).toBe(1)
     expect(event.data).toEqual({ value: 'accepted' })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([event])
   })
 
@@ -936,6 +964,7 @@ describe('Session', () => {
       }),
       { surfaceOp: { op: 'replace', startSeq: 1n, endSeq: 2 } } as never,
     )).toThrow(/non-JSON-serializable surface metadata/)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([])
   })
 
@@ -954,6 +983,7 @@ describe('Session', () => {
       }),
       { surfaceOp: new ReplaceOp() },
     )).toThrow(/non-JSON-serializable surface metadata/)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([])
   })
 
@@ -985,6 +1015,7 @@ describe('Session', () => {
 
     expect(reads).toBe(1)
     expect(event.surfaceOp).toEqual({ op: 'replace', startSeq: 0, endSeq: 0 })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([source, event])
   })
 
@@ -1006,6 +1037,7 @@ describe('Session', () => {
       surfaceOp: 'append',
       sourceEventSeqs: [0, -1],
     })).toThrow(/non-negative safe integers/)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([])
   })
 
@@ -1029,6 +1061,7 @@ describe('Session', () => {
       data: { turn: 1 },
       surfaceOp: 'append',
     } as unknown as SessionEvent])).toThrow(/invalid seed event.*not surface-eligible/)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([])
   })
 
@@ -1039,6 +1072,7 @@ describe('Session', () => {
       time: 1,
       data: { turn: 1 },
     }])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const seededEvent = seeded.snapshotEvents()[0]!
     if (seededEvent.type !== 'turn/start') throw new Error('test fixture must remain a turn/start')
     expect(Object.isFrozen(seededEvent)).toBe(true)
@@ -1059,20 +1093,24 @@ describe('Session', () => {
   it('returns cached frozen event-array snapshots that do not grow after append', () => {
     const session = Session.create(SessionId('events-snapshot'))
     session.append('turn/start', { turn: 1 })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const before = session.snapshotEvents()
     const beforeEvent = before[0]!
     if (beforeEvent.type !== 'turn/start') throw new Error('test fixture must remain a turn/start')
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toBe(before)
     expect(Object.isFrozen(before)).toBe(true)
     expect(() => { (before as SessionEvent[]).push(beforeEvent) }).toThrow(TypeError)
     expect(() => { beforeEvent.data.turn = 99 }).toThrow(TypeError)
 
     session.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const after = session.snapshotEvents()
     expect(before).toHaveLength(1)
     expect(after).toHaveLength(2)
     expect(after).not.toBe(before)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toBe(after)
   })
 
@@ -1081,10 +1119,14 @@ describe('Session', () => {
     const start = session.append('turn/start', { turn: 1 })
     const end = session.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.eventAt(SessionSeq(0))).toBe(start)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.eventAt(SessionSeq(1))).toBe(end)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.eventAt(SessionSeq(2))).toBeUndefined()
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const range = session.snapshotEvents(SessionLogOffset(1), SessionLogOffset(2))
     expect(range).toEqual([end])
     expect(Object.isFrozen(range)).toBe(true)
@@ -1230,6 +1272,7 @@ describe('Session', () => {
     const marked = Session.create(SessionId('ignorable-envelope'), [
       { ...base, ignorable: true } as SessionEvent,
     ])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(marked.snapshotEvents()[0]?.ignorable).toBe(true)
   })
 })
@@ -1274,6 +1317,7 @@ describe('SessionStore', () => {
     a.append('user/message', createUserMessage({
       content: [{ type: 'text', text: 'q' }], source: { kind: 'user' },
     }), { surfaceOp: 'append' })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const forked = ctx.sessions.create(SessionId('fork'), { seed: a.snapshotEvents() })
     expect(forked.deriveMessages()).toEqual(a.deriveMessages())
   })
@@ -1537,6 +1581,7 @@ describe('SessionStore', () => {
     const heard: SessionEvent[] = []
     let committedBeforeNotify = false
     ctx.on('session/event', (observedSession, event) => {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       committedBeforeNotify = observedSession.snapshotEvents().at(-1) === event
       throw new Error('sync event observer')
     })
@@ -1550,6 +1595,7 @@ describe('SessionStore', () => {
       })
     }).not.toThrow()
     expect(committedBeforeNotify).toBe(true)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([appended])
     expect(heard).toEqual([appended])
     await Promise.resolve()
@@ -1573,6 +1619,7 @@ describe('SessionStore', () => {
       const [observedSession, event] = args as [Session, SessionEvent]
       validations.push({
         event,
+        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         logLength: observedSession.snapshotEvents().length,
         frozen: Object.isFrozen(event) && Object.isFrozen(event.data),
       })
@@ -1586,6 +1633,7 @@ describe('SessionStore', () => {
     expect(() => session.append('turn/start', {
       turn: 1,
     })).toThrow('reject first candidate')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([])
     expect(observed).toEqual([])
 
@@ -1598,6 +1646,7 @@ describe('SessionStore', () => {
     ])
     expect(validations.map(({ event }) => event.seq)).toEqual([0, 0])
     expect(validations[1]!.event).toBe(appended)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([appended])
     expect(observed).toEqual([appended])
   })
@@ -1629,6 +1678,7 @@ describe('SessionStore', () => {
       sourceEventSeqs: [SessionSeq(2)],
     })).toThrow('reject surface candidate')
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(3)
     expect(surface.nodes).toEqual([2])
     expect(surface.replaceGeneration).toBe(0)
@@ -1654,6 +1704,7 @@ describe('SessionStore', () => {
     expect(() => session.append('turn/start', {
       turn: 1,
     })).toThrow('dispatch instrumentation rejected the carrier')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([])
     expect(observed).toEqual([])
   })
@@ -1673,6 +1724,7 @@ describe('SessionStore', () => {
     const appended = session.append('turn/start', {
       turn: 1,
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([appended])
     expect(heard).toEqual([appended])
     expect(warnings).toEqual([
@@ -1704,6 +1756,7 @@ describe('SessionStore', () => {
       turn: 1,
     })
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([appended])
     expect(order).toEqual(['resolve:live', 'observe:live', 'dispose:detached'])
     expect(ctx.sessions.get(session.id)).toBeUndefined()
diff --git a/packages/core/session/tests/surface.spec.ts b/packages/core/session/tests/surface.spec.ts
index 6d10e22335..5436777e22 100644
--- a/packages/core/session/tests/surface.spec.ts
+++ b/packages/core/session/tests/surface.spec.ts
@@ -328,6 +328,7 @@ describe('SurfaceManager', () => {
       sourceEventSeqs: sourceSeqs(2, 1),
     })
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const folded = foldSurface(s.snapshotEvents())
     expect(folded.nodes).toEqual(s.surface.nodes)
     expect(folded.replacements).toEqual([
@@ -337,7 +338,9 @@ describe('SurfaceManager', () => {
     folded.nodes[0] = SessionSeq(99)
     folded.replacements[0]!.shadowedSeqs.push(SessionSeq(99))
     expect(s.surface.nodes).toEqual([3])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldSurface(s.snapshotEvents()).nodes).toEqual([3])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldSurface(s.snapshotEvents()).replacements[0]!.shadowedSeqs).toEqual([0])
   })
 
@@ -354,6 +357,7 @@ describe('SurfaceManager', () => {
     expect(s.surface.nodes).toEqual([1])
     const manager = s.surface as unknown as { _state: object }
     expect(Object.hasOwn(manager._state, 'replacements')).toBe(false)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldSurface(s.snapshotEvents()).replacements).toEqual([
       { seq: 1, start: 0, end: 0, shadowedSeqs: [0] },
     ])
@@ -388,6 +392,7 @@ describe('SurfaceManager', () => {
     const surface = s.surface
     const nodes = surface.nodes
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(nodes).toEqual(foldSurface(s.snapshotEvents()).nodes)
     expect(surface.replaceGeneration).toBe(0)
 
@@ -408,10 +413,12 @@ describe('SurfaceManager', () => {
       { surfaceOp: surfaceOp({ op: 'replace', startSeq: 0, endSeq: 0 }) },
     )).toThrow(/missing 0/)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(s.snapshotEvents()).toHaveLength(1)
     expect(s.surface).toBe(surface)
     expect(surface.nodes).toEqual([0])
     expect(surface.replaceGeneration).toBe(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(surface.nodes).toEqual(foldSurface(s.snapshotEvents()).nodes)
 
     s.append('user/message', createUserMessage({
@@ -420,6 +427,7 @@ describe('SurfaceManager', () => {
     expect(surface.nodes).toBe(nodes)
     expect(surface.nodes).toEqual([0, 1])
     expect(surface.replaceGeneration).toBe(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(surface.nodes).toEqual(foldSurface(s.snapshotEvents()).nodes)
   })
 
@@ -493,6 +501,7 @@ describe('SurfaceManager', () => {
         isError: false,
       }),
     }, { surfaceOp: 'append' })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const replayed = Session.create(SessionId('replay'), original.snapshotEvents())
     expect(replayed.surface.nodes).toEqual([1, 2, 4])
     expect(replayed.deriveMessages()).toEqual(original.deriveMessages())
@@ -594,6 +603,7 @@ describe('SurfaceManager', () => {
     // Mutate caller's array after append.
     sources.push(SessionSeq(1))
     sources[0] = SessionSeq(99)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const logged = s.snapshotEvents()[1]! as SurfaceEvent
     expect(logged.sourceEventSeqs).toEqual([0])
   })
@@ -629,6 +639,7 @@ describe('SurfaceManager', () => {
     })
     // Mutate caller's object after append.
     op.startSeq = SessionSeq(99)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const logged = s.snapshotEvents()[1]! as SurfaceEvent
     expect(logged.surfaceOp).toEqual({ op: 'replace', startSeq: 0, endSeq: 0 })
   })
@@ -719,7 +730,9 @@ describe('Session.append surface opts', () => {
     expect(event.sourceEventSeqs).toEqual([0, 1])
     expect(event.surfaceOp).toBe('append')
     // The logged event matches the returned event.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect((s.snapshotEvents()[2]! as SurfaceEvent).sourceEventSeqs).toEqual([0, 1])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect((s.snapshotEvents()[2]! as SurfaceEvent).surfaceOp).toBe('append')
   })
 
@@ -753,7 +766,9 @@ describe('Session.append surface opts', () => {
   it('a non-surface event carries no surface fields', () => {
     const s = Session.create(SessionId('noopts'))
     s.append('turn/start', { turn: 1 })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect((s.snapshotEvents()[0] as SessionEvent<SurfaceEventType>).sourceEventSeqs).toBeUndefined()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect((s.snapshotEvents()[0] as SessionEvent<SurfaceEventType>).surfaceOp).toBeUndefined()
   })
 
@@ -806,12 +821,14 @@ describe('surface type guards', () => {
 
   it('isSurfaceEvent narrows a fully-formed surface event', () => {
     const s = surfaceSession()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const userMessage = s.snapshotEvents().find(e => e.type === 'user/message')!
     expect(isSurfaceEvent(userMessage)).toBe(true)
   })
 
   it('isSurfaceEvent rejects a non-surface-eligible type', () => {
     const s = surfaceSession()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnStart = s.snapshotEvents().find(e => e.type === 'turn/start')!
     expect(isSurfaceEvent(turnStart)).toBe(false)
   })
@@ -835,7 +852,9 @@ describe('surface type guards', () => {
     s.append('user/message', createUserMessage({
       content: [{ type: 'text', text: 'checkpoint' }], source: { kind: 'plugin', plugin: 'compact' },
     }), { surfaceOp: surfaceOp({ op: 'replace', startSeq: 1, endSeq: 2 }), sourceEventSeqs: sourceSeqs(1, 2) })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const appended = s.snapshotEvents().find(e => e.type === 'user/message')!
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const replacement = s.snapshotEvents().at(-1)!
 
     expect(isAppendSurfaceEvent(appended)).toBe(true)
@@ -846,6 +865,7 @@ describe('surface type guards', () => {
 
   it('rejects log-only and markerless events from both marker guards', () => {
     const s = surfaceSession()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnStart = s.snapshotEvents().find(e => e.type === 'turn/start')!
     // A surface-eligible type whose mandatory marker is absent has no origin at
     // all: it never entered the surface.
diff --git a/packages/core/tools/src/invariant.ts b/packages/core/tools/src/invariant.ts
index 2fb5b5878c..d5edf99697 100644
--- a/packages/core/tools/src/invariant.ts
+++ b/packages/core/tools/src/invariant.ts
@@ -58,6 +58,7 @@ const install: InvariantInstaller = Object.assign((ctx: Context, fail: Invariant
   const seed = (session: Session): number | null => {
     let openTurn: number | null = null
     dispatchRoots.set(session, new Map())
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     for (const event of session.snapshotEvents()) {
       validateDispatch(session, event)
       commitDispatch(session, event)
diff --git a/packages/core/tools/tests/invariant.spec.ts b/packages/core/tools/tests/invariant.spec.ts
index 202963379e..795bef2ad8 100644
--- a/packages/core/tools/tests/invariant.spec.ts
+++ b/packages/core/tools/tests/invariant.spec.ts
@@ -152,6 +152,7 @@ describe('tool-pipeline invariants', () => {
       name: 'echo',
       arguments: {},
     })).toThrow(/parentCallId child does not belong to rootCallId another-root/)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'tool/ptc-dispatch-start'
       && String(event.data.subCallId) === 'invalid-grandchild')).toBe(false)
   })
diff --git a/packages/core/tools/tests/ptc.spec.ts b/packages/core/tools/tests/ptc.spec.ts
index 11bf14e01a..2f2dfebd1a 100644
--- a/packages/core/tools/tests/ptc.spec.ts
+++ b/packages/core/tools/tests/ptc.spec.ts
@@ -1484,6 +1484,7 @@ describe('the run_code dispatch bridge', () => {
     expect(result.isError).toBe(false)
     expect(result.isError ? undefined : result.value).toEqual({ logs: [], result: depth })
     expect({ observedDepth, observedLeaf }).toEqual({ observedDepth: depth, observedLeaf: 'leaf' })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const dispatch = session.snapshotEvents().find(event => event.type === 'tool/ptc-dispatch')
     if (dispatch === undefined) throw new Error('expected a durable tool/ptc-dispatch event')
     const logged = dispatch.data.arguments as { nested: JsonValue }
diff --git a/packages/experimental/agent-team/src/mailbox.ts b/packages/experimental/agent-team/src/mailbox.ts
index acd842308a..6afc7f441b 100644
--- a/packages/experimental/agent-team/src/mailbox.ts
+++ b/packages/experimental/agent-team/src/mailbox.ts
@@ -299,6 +299,7 @@ export class TeamMailbox {
 
   /** Whether a target Session already contains the durable message identity. */
   private targetRecorded(session: Session, messageId: TeamMessageId): boolean {
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const suffix = session.snapshotEvents(session.inheritedEventCount)
     return messageAccepted(suffix, message => message.source.kind === 'team-message'
       && message.source.messageId === messageId)
diff --git a/packages/experimental/agent-team/src/roster.ts b/packages/experimental/agent-team/src/roster.ts
index 3d0ca8372e..ae52c741c2 100644
--- a/packages/experimental/agent-team/src/roster.ts
+++ b/packages/experimental/agent-team/src/roster.ts
@@ -375,6 +375,7 @@ export class TeamRoster {
       try {
         signal.throwIfAborted()
         await this.ctx.sessions.flush(session)
+        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         const suffix = session.snapshotEvents(session.inheritedEventCount)
         if (messageAccepted(suffix, message => message.id === messageId)) return
         if (this.ctx.sessions.get(childId) !== session) continue
@@ -482,6 +483,7 @@ export class TeamRoster {
 
   /** Whether a Session's own suffix identifies a provider-owned subagent child. */
   private subagentDescriptor(agent: Agent): boolean {
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     return foldSubagentDescriptor(agent.session.snapshotEvents(agent.session.inheritedEventCount)) !== undefined
   }
 }
diff --git a/packages/experimental/agent-team/tests/invariant.spec.ts b/packages/experimental/agent-team/tests/invariant.spec.ts
index 5dd8dba256..df9ec3b3a7 100644
--- a/packages/experimental/agent-team/tests/invariant.spec.ts
+++ b/packages/experimental/agent-team/tests/invariant.spec.ts
@@ -44,6 +44,7 @@ describe('Agent Teams stream invariant', () => {
       code: 'INVARIANT',
       packageName: '@deepseek-ai/dsh-experimental-agent-team',
     }))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(invalid.snapshotEvents()).toEqual([])
   })
 
@@ -69,6 +70,7 @@ describe('Agent Teams stream invariant', () => {
       code: 'INVARIANT',
       packageName: '@deepseek-ai/dsh-experimental-agent-team',
     }))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([])
   })
 })
diff --git a/packages/experimental/agent-team/tests/persistence.spec.ts b/packages/experimental/agent-team/tests/persistence.spec.ts
index 5237fc0301..c7d4414792 100644
--- a/packages/experimental/agent-team/tests/persistence.spec.ts
+++ b/packages/experimental/agent-team/tests/persistence.spec.ts
@@ -31,6 +31,7 @@ function durable(agent: Agent): {
   pendingMessages: TeamMessageSnapshot[]
 } {
   let projected = teamProjectionDefinition.init(agent.session.header)
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   for (const event of agent.session.snapshotEvents()) projected = teamProjectionDefinition.apply(projected, event)
   if (projected.failure !== undefined) throw new Error(projected.failure)
   const state = projected
@@ -158,6 +159,7 @@ async function persistedChild(
   // Live sessions persist only through an attached agent-loop writer; this
   // bare fixture session seeds its durable log directly for the cold restart.
   const handle = await ctx.sessionPersistence.create(child.header)
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   await handle.append(child.snapshotEvents())
   await handle.close()
   return child
@@ -393,6 +395,7 @@ for (const backend of backends) {
       const checkpointEntered = Promise.withResolvers<undefined>()
       const releaseCheckpoint = Promise.withResolvers<undefined>()
       const delayedCheckpoint = vi.spyOn(second.ctx.sessions, 'flush').mockImplementation(async (session) => {
+        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         if (session.id === rootId && session.snapshotEvents().some(event =>
           event.type === 'team/message/delivered' && event.data.messageId === messageId)) {
           checkpointEntered.resolve(undefined)
diff --git a/packages/experimental/agent-team/tests/team.spec.ts b/packages/experimental/agent-team/tests/team.spec.ts
index 79354a6427..d19f1522b7 100644
--- a/packages/experimental/agent-team/tests/team.spec.ts
+++ b/packages/experimental/agent-team/tests/team.spec.ts
@@ -35,6 +35,7 @@ function durable(agent: Agent): {
   pendingMessages: TeamMessageSnapshot[]
 } {
   let projected = teamProjectionDefinition.init(agent.session.header)
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   for (const event of agent.session.snapshotEvents()) projected = teamProjectionDefinition.apply(projected, event)
   if (projected.failure !== undefined) throw new Error(projected.failure)
   const state = projected
@@ -270,6 +271,7 @@ describe('Team identity and provisioning', () => {
     // Live sessions persist only through an attached agent-loop writer; this
     // bare fixture session seeds its durable log directly for the cold reread.
     const persisted = await ctx.sessionPersistence.create(liveSession.header)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     await persisted.append(liveSession.snapshotEvents())
     await persisted.close()
     await liveFiber.dispose()
@@ -469,6 +471,7 @@ describe('Team identity and provisioning', () => {
     await ctx.agentTeams.createTask(lead, { subject: 'parent task', description: 'belongs to parent' })
     const handle = await ctx.agents.create({
       sessionId: SessionId('ordinary-fork'),
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       seed: lead.session.snapshotEvents(),
       meta: { parentSession: lead.id, isSeeded: true },
       inheritedEventCount: SessionLogOffset(lead.session.seq),
@@ -951,6 +954,7 @@ describe('Team mailbox and waiting', () => {
     })
 
     await expect(teamInternals(ctx).mailbox.tryDispatch(lead, message, SIGNAL)).resolves.toBe(true)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(lead.session.snapshotEvents().some(event => event.type === 'agent/inbox/spliced'
       && event.data.inserted.some(input => input.source.kind === 'team-message'
         && input.source.messageId === message.id))).toBe(true)
@@ -995,12 +999,14 @@ describe('Team mailbox and waiting', () => {
       'team/message/delivered',
     ])
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const receiptCount = lead.session.snapshotEvents().filter(event => event.type === 'agent/inbox/spliced'
       && event.data.inserted.some(message => message.source.kind === 'team-message'
         && messageIds.has(message.source.messageId))).length
     await teamFiber.dispose()
     await ctx.plugin(TeamService, { maxPendingMessagesPerMember: 1 })
     await vi.waitFor(() => { expect(durable(lead).pendingMessages).toEqual([]) })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(lead.session.snapshotEvents().filter(event => event.type === 'agent/inbox/spliced'
       && event.data.inserted.some(message => message.source.kind === 'team-message'
         && messageIds.has(message.source.messageId)))).toHaveLength(receiptCount)
@@ -1202,6 +1208,7 @@ describe('Team mailbox and waiting', () => {
     expect(later.status).toBe('accepted')
     const target = await waitRunning(ctx, started.member.id)
     await vi.waitFor(() => {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const accepted = target.session.snapshotEvents().flatMap(event => event.type === 'agent/inbox/spliced'
         ? event.data.inserted.flatMap(message => message.source.kind === 'team-message'
           ? [message.source.messageId]
diff --git a/packages/experimental/agent-team/tests/test-session-query.ts b/packages/experimental/agent-team/tests/test-session-query.ts
index 233c493ad2..3b7554873a 100644
--- a/packages/experimental/agent-team/tests/test-session-query.ts
+++ b/packages/experimental/agent-team/tests/test-session-query.ts
@@ -33,6 +33,7 @@ export class TestSessionQuery extends SessionQueryEngine {
     options: SessionObservationOptions = {},
   ): Promise<SessionObservation> {
     const live = this.ctx.sessions.get(sessionId)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     if (live !== undefined) return cut('live', live.header, live.snapshotEvents())
     const handle = await this.ctx.sessionPersistence.open(
       sessionId,
diff --git a/packages/experimental/tool-agent-team/tests/tool-team.spec.ts b/packages/experimental/tool-agent-team/tests/tool-team.spec.ts
index 6ae2fddca3..74a8175fcd 100644
--- a/packages/experimental/tool-agent-team/tests/tool-team.spec.ts
+++ b/packages/experimental/tool-agent-team/tests/tool-team.spec.ts
@@ -148,6 +148,7 @@ describe('dsh-tool-team', () => {
     expect(childAssembly.tools.map(schema => schema.name).filter(name => TOOL_NAMES.includes(name)).sort())
       .toEqual(TOOL_NAMES)
     expect(renderPrompt(childAssembly)).toContain('Your Team role is teammate; your Team name is tool-worker')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const initialPrompt = child.session.snapshotEvents().find(event => event.type === 'user/message'
       && event.data.source.kind === 'user')
     expect(initialPrompt?.type === 'user/message'
diff --git a/packages/feedback/command-feedback/tests/command-feedback.spec.ts b/packages/feedback/command-feedback/tests/command-feedback.spec.ts
index e59020bfc6..40ef1755b4 100644
--- a/packages/feedback/command-feedback/tests/command-feedback.spec.ts
+++ b/packages/feedback/command-feedback/tests/command-feedback.spec.ts
@@ -73,6 +73,7 @@ async function run(test: Harness, suffix = ''): Promise<{ kind: string; text?: s
 
 /** Authoritative feedback payloads in log order. */
 function feedbackTexts(session: Session): string[] {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return session.snapshotEvents()
     .filter(event => event.type === 'feedback/record')
     .map(event => event.data.text)
@@ -107,14 +108,17 @@ describe('/feedback human command', () => {
       text: `Feedback recorded for session ${test.session.id}\nAnonymous user: ${USER_ID}.`,
     })
     expect(feedbackTexts(test.session)).toEqual(['the diff view is unreadable'])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const commandRun = test.session.snapshotEvents().find(event => event.type === 'command/run')
     expect(commandRun?.type === 'command/run' && Object.hasOwn(commandRun.data, 'args')).toBe(false)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(JSON.stringify(test.session.snapshotEvents()).match(/the diff view is unreadable/gu)).toHaveLength(1)
   })
 
   it('exports a command-independent feedback producer', async () => {
     const test = await harness()
     commandFeedback.recordFeedback(test.session, '  recorded outside a command  ')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.session.snapshotEvents().map(event => event.type)).toEqual(['feedback/record'])
     expect(feedbackTexts(test.session)).toEqual(['recorded outside a command'])
     expect(() => { commandFeedback.recordFeedback(test.session, ' \n\t ') })
@@ -125,6 +129,7 @@ describe('/feedback human command', () => {
   it('keeps command bookkeeping around the authoritative feedback event', async () => {
     const test = await harness()
     await run(test, ' nothing else happens')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.session.snapshotEvents().map(event => event.type)).toEqual([
       'command/run', 'feedback/record', 'command/done',
     ])
@@ -161,10 +166,12 @@ describe('/feedback human command', () => {
   it('keeps every recorded event out of model context and derived history', async () => {
     const test = await harness()
     await run(test, ' invisible to the model')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     for (const event of test.session.snapshotEvents()) {
       expect('surfaceOp' in event).toBe(false)
       expect(test.session.deriveEventMessage(event)).toBeNull()
     }
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldSurface(test.session.snapshotEvents()).nodes).toEqual([])
     expect(test.session.surface.nodes).toEqual([])
     expect(test.session.deriveMessages()).toEqual([])
@@ -180,8 +187,10 @@ describe('/feedback human command', () => {
     await expect(run(test, '   \n\t ')).resolves.toEqual(expected)
     expect(getOrCreateAnonymousUserId).not.toHaveBeenCalled()
     expect(feedbackTexts(test.session)).toEqual([])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const done = test.session.snapshotEvents().filter(event => event.type === 'command/done')
     expect(done.map(event => event.data.kind)).toEqual(['error', 'error'])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     for (const event of test.session.snapshotEvents()) {
       if (event.type === 'command/run') expect(Object.hasOwn(event.data, 'args')).toBe(false)
     }
@@ -193,6 +202,7 @@ describe('/feedback human command', () => {
     controller.abort(new Error('user cancelled the command'))
     await expect(test.ctx.commands.execute(test.agent, '/feedback too late', [], controller.signal))
       .rejects.toThrow('user cancelled the command')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.session.snapshotEvents()).toEqual([])
   })
 })
diff --git a/packages/feedback/command-feedback/tests/loader-composition.spec.ts b/packages/feedback/command-feedback/tests/loader-composition.spec.ts
index 6ab826e516..6867625302 100644
--- a/packages/feedback/command-feedback/tests/loader-composition.spec.ts
+++ b/packages/feedback/command-feedback/tests/loader-composition.spec.ts
@@ -102,12 +102,16 @@ describe('/feedback real Loader composition through cordis.yml', () => {
     })
 
     // The domain event owns the payload; generic command bookkeeping omits it.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(owner.session.snapshotEvents().map(event => event.type))
       .toEqual(['command/run', 'feedback/record', 'command/done', 'command/run', 'command/done'])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const run = owner.session.snapshotEvents().find(event => event.type === 'command/run')
     expect(run?.type === 'command/run' && Object.hasOwn(run.data, 'args')).toBe(false)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const feedback = owner.session.snapshotEvents().find(event => event.type === 'feedback/record')
     expect(feedback?.type === 'feedback/record' && feedback.data.text).toBe('the diff view is unreadable')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(JSON.stringify(owner.session.snapshotEvents()).match(/the diff view is unreadable/gu)).toHaveLength(1)
 
     // Nothing reached the model.
diff --git a/packages/feedback/message-feedback/src/index.ts b/packages/feedback/message-feedback/src/index.ts
index 7530ccaa70..2b2fc5ccee 100644
--- a/packages/feedback/message-feedback/src/index.ts
+++ b/packages/feedback/message-feedback/src/index.ts
@@ -226,10 +226,12 @@ export class MessageFeedbackService extends TypertRemoteService {
     }
     const live = this.ctx.sessions.get(sessionId)
     if (live !== undefined) {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       return operation(live.snapshotEvents(), async (event) => {
         if (event !== undefined) {
           live.append(event.type, event.data)
         }
+        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         const last = live.snapshotEvents().at(-1)
         if (!(await this.ctx.sessions.flush(live))) {
           throw new Error(
diff --git a/packages/feedback/message-feedback/tests/helpers.ts b/packages/feedback/message-feedback/tests/helpers.ts
index b2ac2f1943..8f3f6c3bb8 100644
--- a/packages/feedback/message-feedback/tests/helpers.ts
+++ b/packages/feedback/message-feedback/tests/helpers.ts
@@ -186,6 +186,7 @@ class TestPersistence extends SessionPersistence {
   }
 
   persist(session: Session): void {
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     this.durable.set(session.id, { meta: session.header, events: [...session.snapshotEvents()] })
   }
 
diff --git a/packages/feedback/message-feedback/tests/message-feedback.spec.ts b/packages/feedback/message-feedback/tests/message-feedback.spec.ts
index 7a94fefca2..039c0b1388 100644
--- a/packages/feedback/message-feedback/tests/message-feedback.spec.ts
+++ b/packages/feedback/message-feedback/tests/message-feedback.spec.ts
@@ -62,6 +62,7 @@ describe('MessageFeedbackService public contract', () => {
     })
 
     const fixture = messageFixture('corrupt-session')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     persistence.setDurable({ meta: fixture.session.header, events: fixture.session.snapshotEvents() })
     const corruption = new Error('stored log checksum mismatch')
     persistence.readFailure = corruption
@@ -414,6 +415,7 @@ describe('MessageFeedbackService item concurrency', () => {
 
     const replacement = Session.create(
       old.session.id,
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       old.session.snapshotEvents(),
       { ...old.session.header, createdAt: 20, cwd: '/new' },
     )
@@ -493,6 +495,7 @@ describe('canonical message feedback history', () => {
     const sessionId = fixture.session.id
     const messageId = fixture.assistantMessageIds[0]
     persistence.persist(fixture.session)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const prefix = fixture.session.snapshotEvents()
     const lifecycle: string[] = []
     ctx.on('session/created', () => { lifecycle.push('created') })
@@ -538,6 +541,7 @@ describe('canonical message feedback history', () => {
     const { ctx, persistence } = await harness()
     const session = ctx.sessions.create(SessionId('live-log'))
     const fixture = appendMessageFixture(session)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const before = session.snapshotEvents().length
     const failure = new Error('disk unavailable')
     let fail = true
@@ -552,7 +556,9 @@ describe('canonical message feedback history', () => {
     const item = listed.value.items[0]!
     fail = false
     expectItem(await ctx.messageFeedback.put({ ...request, ifVersion: item.version }))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(before + 1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(persistence.durable.get(session.id)?.events).toEqual(session.snapshotEvents())
     expect(persistence.openCalls).toEqual(['read'])
   })
@@ -563,6 +569,7 @@ describe('canonical message feedback history', () => {
       const session = ctx.sessions.create(SessionId('mismatched-checkpoint'))
       const fixture = appendMessageFixture(session)
       ctx.on('session/flush', () => {
+        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         const events = [...session.snapshotEvents()]
         if (kind === 'missing-tail') events.pop()
         if (kind === 'different-tail') events[events.length - 1] = { ...events.at(-1)!, time: 0 }
@@ -587,6 +594,7 @@ describe('canonical message feedback history', () => {
     expectItem(await ctx.messageFeedback.put({
       sessionId: session.id, messageId: fixture.assistantMessageIds[0], rating: 'positive', ifVersion: null,
     }))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(persistence.durable.get(session.id)!.events.length).toBe(session.snapshotEvents().length - 1)
   })
 
@@ -624,6 +632,7 @@ describe('canonical message feedback history', () => {
   ])('rejects malformed durable feedback payload %#', async (record) => {
     const { ctx, persistence } = await harness()
     const fixture = messageFixture('invalid-feedback')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = fixture.session.snapshotEvents()
     persistence.setDurable({ meta: fixture.session.header, events: [...events, {
       ...record, seq: SessionSeq(events.length), time: 1,
diff --git a/packages/fs/tool-fs/tests/fs-tools.e2e.ts b/packages/fs/tool-fs/tests/fs-tools.e2e.ts
index 9e15589025..79bddaa090 100644
--- a/packages/fs/tool-fs/tests/fs-tools.e2e.ts
+++ b/packages/fs/tool-fs/tests/fs-tools.e2e.ts
@@ -43,6 +43,7 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('fs tools with-key smoke', () =>
     expect(content).not.toContain('draft')
 
     // The log records real read/write/edit tool calls (not bash).
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const calls = agent.session.snapshotEvents().filter(e => e.type === 'tool/call').map(e => e.data.name)
     expect(calls).toContain('write')
     expect(calls).toContain('read')
diff --git a/packages/fs/tool-present/tests/present.spec.ts b/packages/fs/tool-present/tests/present.spec.ts
index 95606e09dc..4c805c2395 100644
--- a/packages/fs/tool-present/tests/present.spec.ts
+++ b/packages/fs/tool-present/tests/present.spec.ts
@@ -84,6 +84,7 @@ describe('present', () => {
     if (result.isError) throw new Error('present failed')
     const files = (result.value as unknown as { files: PresentedFile[] }).files
     expect(files).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(owner.session.snapshotEvents().find(event => event.type === 'deliverables/presented')?.data.files).toEqual(files)
     expect(files).toEqual([{ path: '报告.docx', description: 'Report' }])
     expect(read).not.toHaveBeenCalled()
@@ -109,6 +110,7 @@ describe('present', () => {
       execute: async () => ({ turn: 1, files: [] }),
     }))
     expect((await execute([])).isError).toBe(false)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(owner.session.snapshotEvents().filter(event => event.type === 'deliverables/presented')).toEqual([])
   })
 
@@ -117,6 +119,7 @@ describe('present', () => {
     await owner.ctx.plugin(Present, { maxFiles: 2 })
     await writeFile(join(root, 'a'), 'a')
     expect((await execute([{ path: 'a' }])).isError).toBe(false)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const deliveries = owner.session.snapshotEvents().filter(event => event.type === 'deliverables/presented')
     expect(deliveries).toHaveLength(1)
     expect(deliveries[0]?.data.files[0]?.path).toBe('a')
@@ -130,6 +133,7 @@ describe('present', () => {
       return { kind: 'block', feedback: [{ type: 'text', text: 'blocked' }] }
     })
     expect((await execute([{ path: 'a' }])).isError).toBe(true)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(owner.session.snapshotEvents().some(event => event.type === 'deliverables/presented')).toBe(false)
   })
 
@@ -141,6 +145,7 @@ describe('present', () => {
       const result = await execute(files)
       expect(result.isError, JSON.stringify(files)).toBe(true)
     }
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(owner.session.snapshotEvents().some(event => event.type === 'deliverables/presented')).toBe(false)
   })
 
diff --git a/packages/goal/command-goal/tests/command-goal.spec.ts b/packages/goal/command-goal/tests/command-goal.spec.ts
index 1c1761cf74..94f42cdfe8 100644
--- a/packages/goal/command-goal/tests/command-goal.spec.ts
+++ b/packages/goal/command-goal/tests/command-goal.spec.ts
@@ -59,15 +59,19 @@ async function harness(): Promise<Harness> {
 /** The log with executor-owned command lifecycle bookkeeping stripped (goal assertions target domain events). */
 function domainEvents(session: Session): readonly SessionEvent[] {
   const lifecycle = new Set<number>()
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   for (const event of session.snapshotEvents()) {
     if (event.type !== 'command/run' && event.type !== 'command/done') continue
     lifecycle.add(event.seq)
     // The zero-step wrap around a lifecycle event is bookkeeping too.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const before = session.snapshotEvents()[event.seq - 1]
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const after = session.snapshotEvents()[event.seq + 1]
     if (before?.type === 'turn/start') lifecycle.add(before.seq)
     if (after?.type === 'turn/end') lifecycle.add(after.seq)
   }
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return session.snapshotEvents().filter(event => !lifecycle.has(event.seq))
 }
 
diff --git a/packages/goal/goal-round-driver/src/invariant.ts b/packages/goal/goal-round-driver/src/invariant.ts
index 22ca5c39a1..e716422f27 100644
--- a/packages/goal/goal-round-driver/src/invariant.ts
+++ b/packages/goal/goal-round-driver/src/invariant.ts
@@ -61,6 +61,7 @@ function validateEvent(
 const install: InvariantInstaller = Object.assign((ctx: Context, fail: InvariantFailure) => {
   for (const session of ctx.sessions.list()) {
     const prior: SessionEvent[] = []
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     for (const event of session.snapshotEvents()) {
       validateEvent(prior, event, fail)
       prior.push(event)
@@ -70,6 +71,7 @@ const install: InvariantInstaller = Object.assign((ctx: Context, fail: Invariant
   ctx.on('internal/dispatch', (_mode, eventName, args) => {
     if (eventName !== 'session/event') return
     const [session, event] = args as [Session, SessionEvent]
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     validateEvent(session.snapshotEvents(), event, fail)
   }, { global: true })
 }, { inject: ['sessions'] })
diff --git a/packages/goal/goal-round-driver/tests/goal-round-driver.spec.ts b/packages/goal/goal-round-driver/tests/goal-round-driver.spec.ts
index 2ec805d71b..4732334ddc 100644
--- a/packages/goal/goal-round-driver/tests/goal-round-driver.spec.ts
+++ b/packages/goal/goal-round-driver/tests/goal-round-driver.spec.ts
@@ -197,6 +197,7 @@ describe('same-session goal driving', () => {
     })
     expect(test.adapter.requests).toHaveLength(2)
     const rounds: number[] = []
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     for (const event of test.agent.session.snapshotEvents()) {
       // Round zero is a durable goal state change; positive rounds are the
       // admitted continuation prompts this test counts.
@@ -207,6 +208,7 @@ describe('same-session goal driving', () => {
     expect(rounds).toEqual([1, 2])
     expect(requestText(test.adapter.requests[0]!)).toContain('Round: 1/2')
     expect(requestText(test.adapter.requests[1]!)).toContain('Round: 2/2')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().flatMap(event =>
       event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial', 'series'])
   })
@@ -262,6 +264,7 @@ describe('same-session goal driving', () => {
       message: 'Goal round was rejected before entering its step.',
     })
     expect(test.adapter.requests).toHaveLength(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().some(event => event.type === 'turn/start')).toBe(true)
   })
 
@@ -299,6 +302,7 @@ describe('same-session goal driving', () => {
     expect(test.adapter.requests).toHaveLength(0)
     // No admitted continuation round reached the model; goal state changes are
     // represented by their own durable event.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().some(event => event.type === 'user/message'
       && event.data.source.kind === 'goal' && event.data.source.round > 0)).toBe(false)
   })
@@ -377,6 +381,7 @@ describe('same-session goal driving', () => {
 
     expect(goal).toMatchObject({ phase: 'paused', roundsStarted: 1 })
     expect(test.adapter.requests).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEndKinds = test.agent.session.snapshotEvents().flatMap(event =>
       event.type === 'turn/end' ? [event.data.reason.kind] : [])
     expect(turnEndKinds).toContain('completed')
@@ -394,6 +399,7 @@ describe('same-session goal driving', () => {
     expect(requestText(test.adapter.requests[0]!)).toContain('human goes first')
     expect(requestText(test.adapter.requests[0]!)).not.toContain('<goal_round>')
     expect(requestText(test.adapter.requests[1]!)).toContain('<goal_round>')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().flatMap(event =>
       event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial', 'series'])
   })
@@ -431,6 +437,7 @@ describe('same-session goal driving', () => {
     const goal = await waitForGoal(test.ctx, test.agent, current => current?.phase === 'blocked')
 
     expect(goal).toMatchObject({ revision: 3, objective: 'new objective', roundsStarted: 1 })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const admitted = test.agent.session.snapshotEvents().find(event => event.type === 'user/message'
       && event.data.source.kind === 'goal' && event.data.source.round > 0)
     expect(admitted?.type === 'user/message' && admitted.data.source.kind === 'goal'
@@ -817,6 +824,7 @@ describe('same-session goal driving', () => {
     await test.agent.whenIdle()
 
     expect(test.adapter.requests).toHaveLength(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().some(event => event.type === 'turn/start')).toBe(true)
   })
 
@@ -991,6 +999,7 @@ describe('same-session goal driving', () => {
     })
     handle.agent.followup(createUserMessage({ content: [{ type: 'text', text: 'one ordinary turn' }], source: { kind: 'user' } }))
     await handle.agent.whenIdle()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const closed = handle.agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')
     if (closed?.type !== 'turn/end') throw new Error('expected a closed turn')
     await handle.dispose()
@@ -1096,6 +1105,7 @@ describe('same-session goal driving', () => {
 
     expect(test.ctx.goals.get(test.agent)).toMatchObject({ phase: 'active', roundsStarted: 0 })
     expect(test.adapter.requests).toHaveLength(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().some(event => event.type === 'turn/start')).toBe(true)
   })
 
diff --git a/packages/goal/goal/src/invariant.ts b/packages/goal/goal/src/invariant.ts
index 3d8e6a46f0..8c0004f42a 100644
--- a/packages/goal/goal/src/invariant.ts
+++ b/packages/goal/goal/src/invariant.ts
@@ -43,6 +43,7 @@ const install: InvariantInstaller = Object.assign((ctx: Context, fail: Invariant
 
   const seed = (session: Session): GoalFoldState => {
     const state = emptyGoalFoldState()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     for (const event of session.snapshotEvents()) applyChecked(state, event, fail)
     states.set(session, state)
     return state
diff --git a/packages/goal/goal/tests/goal.spec.ts b/packages/goal/goal/tests/goal.spec.ts
index ac32cd3765..7281859055 100644
--- a/packages/goal/goal/tests/goal.spec.ts
+++ b/packages/goal/goal/tests/goal.spec.ts
@@ -27,6 +27,7 @@ const sessionStubs = new WeakMap<Session, StubAgent>()
 
 /** Number the next balanced test-fixture turn. */
 function nextTurn(session: Session): number {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return session.snapshotEvents().reduce((max, event) => event.type === 'turn/start' ? Math.max(max, event.data.turn) : max, 0) + 1
 }
 
@@ -131,7 +132,9 @@ describe('GoalService creation and replay', () => {
     })
     expect(goal.id).toMatch(/^goal-/)
     expect(seen).toEqual(['create'])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().map(event => event.type)).toEqual(['goal/change'])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const context = session.snapshotEvents()[0]
     expect(context?.type).toBe('goal/change')
     if (context?.type !== 'goal/change') throw new Error('expected durable goal change')
@@ -140,6 +143,7 @@ describe('GoalService creation and replay', () => {
     expect(change).toMatchObject({ operation: 'create', goal: { id: goal.id } })
     expect(agent.inbox.nextStep).toEqual([])
     expect(session.deriveMessages()).toEqual([])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldGoal(session.snapshotEvents())).toMatchObject({ goal: { id: goal.id }, roundsStarted: 0 })
     vi.useRealTimers()
   })
@@ -192,6 +196,7 @@ describe('GoalService creation and replay', () => {
     await ctx.plugin(AgentRegistry)
     await ctx.plugin(SessionProjectionRegistry)
     await ctx.plugin(GoalService)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const resumed = stubAgent('seeded-goal', first.session.snapshotEvents())
     ctx.agents.register(resumed.agent)
     expect(ctx.goals.get(resumed.agent)).toMatchObject({
@@ -240,12 +245,14 @@ describe('GoalService creation and replay', () => {
     expect(activations.map(entry => entry.activation)).toEqual(['armed', 'disarmed', 'armed'])
     expect(activations.map(entry => entry.id)).toEqual([goal.id, goal.id, goal.id])
     expect(activations.map(entry => entry.revision)).toEqual([1, 1, 2])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(() => foldGoal(session.snapshotEvents())).not.toThrow()
   })
 
   it('lets a lifecycle owner disarm without writing a durable revision', async () => {
     const { ctx, agent, session } = await harness()
     const goal = ctx.goals.create(agent, { objective: 'survive driver reload' })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const before = session.snapshotEvents().length
     expect(ctx.goals.disarm(agent)).toMatchObject({
       id: goal.id,
@@ -253,6 +260,7 @@ describe('GoalService creation and replay', () => {
       phase: 'active',
       activation: 'disarmed',
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(before)
     expect(ctx.goals.resume(agent, goal)).toMatchObject({ revision: 2, activation: 'armed' })
   })
@@ -416,6 +424,7 @@ describe('GoalService mutations', () => {
     const tombstone = ctx.goals.clear(agent, goal)
     expect(tombstone).toEqual({ id: goal.id, revision: 2 })
     expect(ctx.goals.get(agent)).toBeUndefined()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldGoal(session.snapshotEvents())).toEqual({ roundsStarted: 0, lastRef: tombstone })
     expect(() => ctx.goals.clear(agent, goal)).toThrow(expect.objectContaining({ code: 'GOAL_NOT_FOUND' }))
     const next = ctx.goals.create(agent, { objective: 'fresh' })
@@ -432,11 +441,13 @@ describe('GoalService mutations', () => {
     expect(goal.updatedAt).toBe(100)
     vi.setSystemTime(80)
     ctx.goals.clear(agent, goal)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const clear = session.snapshotEvents()
       .filter(event => event.type === 'goal/change')
       .map(event => event.type === 'goal/change' ? decodeGoalChange(event.data) : undefined)
       .at(-1)
     expect(clear).toMatchObject({ operation: 'clear', clearedAt: 100 })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(() => foldGoal(session.snapshotEvents())).not.toThrow()
     vi.useRealTimers()
   })
@@ -458,10 +469,12 @@ describe('GoalService mutations', () => {
     goal = ctx.goals.edit(agent, goal, { objective: 'deferred edit' })
     goal = ctx.goals.pause(agent, goal)
     expect(goal).toMatchObject({ revision: 3, phase: 'paused', activation: 'disarmed' })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().map(event => event.type)).toEqual([
       'goal/change', 'goal/change', 'goal/change',
     ])
     expect(ctx.goals.get(agent)).toMatchObject({ revision: 3, phase: 'paused' })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldGoal(session.snapshotEvents())).toMatchObject({ goal: { revision: 3, phase: 'paused' } })
   })
 
@@ -482,6 +495,7 @@ describe('GoalService mutations', () => {
 
     expect(observed).toEqual(created)
     expect(ctx.goals.get(stub.agent)).toEqual(created)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldGoal(stub.session.snapshotEvents())).toMatchObject({ goal: { id: created.id, revision: 1 } })
   })
 
@@ -499,6 +513,7 @@ describe('GoalService mutations', () => {
       revision: 1,
     })
     expect(stub.agent.inbox.nextStep).toEqual([])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(stub.session.snapshotEvents().map(event => event.type)).toEqual(['goal/change'])
   })
 
@@ -584,6 +599,7 @@ describe('goal replay validation', () => {
   function oneChange(change: GoalChangeMeta) {
     const session = Session.create(SessionId(`validation-${Math.random()}`))
     appendChange(session, change)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     return session.snapshotEvents()
   }
 
@@ -615,6 +631,7 @@ describe('goal replay validation', () => {
     const change = snapshotChange()
     const session = Session.create(SessionId('inbox-independent-change'))
     appendChange(session, change)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldGoal(session.snapshotEvents())).toMatchObject({ goal: { id: change.goal.id, revision: 1 } })
     const message = createUserMessage({
       content: [{ type: 'text', text: 'unrelated pending context' }],
@@ -623,6 +640,7 @@ describe('goal replay validation', () => {
     const inbox = stubAgentForSession(session).agent.inbox
     inbox.append('next-step', message)
     expect(inbox.remove(message.id)).toBe(true)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldGoal(session.snapshotEvents())).toMatchObject({ goal: { id: change.goal.id, revision: 1 } })
   })
 
@@ -630,6 +648,7 @@ describe('goal replay validation', () => {
     const session = Session.create(SessionId(`validation-pair-${Math.random()}`))
     appendChange(session, first)
     appendChange(session, second)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     return foldGoal(session.snapshotEvents())
   }
 
@@ -641,6 +660,7 @@ describe('goal replay validation', () => {
       content: [{ type: 'text', text: 'other' }],
       source: { kind: 'plugin', plugin: 'test' },
     }))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldGoal(session.snapshotEvents())).toEqual({ roundsStarted: 0 })
     const source = { kind: 'plugin', plugin: 'ordinary-user-message' } as const
     const turn = nextTurn(session)
@@ -649,6 +669,7 @@ describe('goal replay validation', () => {
       content: [{ type: 'text', text: 'ordinary' }], source,
     }), { surfaceOp: 'append' })
     session.append('turn/end', { turn, reason: { kind: 'completed' } })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldGoal(session.snapshotEvents())).toEqual({ roundsStarted: 0 })
   })
 
@@ -656,6 +677,7 @@ describe('goal replay validation', () => {
     const change = snapshotChange()
     const session = Session.create(SessionId('other-goal-round'), oneChange(change))
     appendRound(session, { id: GoalId('goal-other'), revision: 1 }, 1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(() => foldGoal(session.snapshotEvents())).toThrow('not the next admitted round')
   })
 
@@ -732,6 +754,7 @@ describe('goal replay validation', () => {
     appendRound(session, base.goal, 2)
     appendChange(session, { ...paused, roundsStarted: 2 })
     appendChange(session, exhausted)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(() => foldGoal(session.snapshotEvents())).toThrow('exhausted round budget')
   })
 
@@ -756,6 +779,7 @@ describe('goal replay validation', () => {
     appendChange(completedSession, base)
     appendChange(completedSession, complete)
     appendChange(completedSession, sameCurrentId)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(() => foldGoal(completedSession.snapshotEvents())).toThrow('fresh active revision-one')
 
     const second = snapshotChange({
@@ -770,6 +794,7 @@ describe('goal replay validation', () => {
     appendChange(nonAdjacentReuse, second)
     appendChange(nonAdjacentReuse, secondComplete)
     appendChange(nonAdjacentReuse, { ...sameCurrentId, createdAt: 30, updatedAt: 30 })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(() => foldGoal(nonAdjacentReuse.snapshotEvents())).toThrow('fresh active revision-one')
 
     const clear: GoalChangeMeta = {
@@ -779,6 +804,7 @@ describe('goal replay validation', () => {
     appendChange(clearedSession, base)
     appendChange(clearedSession, clear)
     appendChange(clearedSession, sameCurrentId)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(() => foldGoal(clearedSession.snapshotEvents())).toThrow('fresh active revision-one')
   })
 
@@ -791,6 +817,7 @@ describe('goal replay validation', () => {
       content: [{ type: 'text', text: 'missing' }], source,
     }), { surfaceOp: 'append' })
     session.append('turn/end', { turn, reason: { kind: 'completed' } })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(() => foldGoal(session.snapshotEvents())).toThrow('goal message source is invalid')
   })
 
@@ -838,6 +865,7 @@ describe('goal replay validation', () => {
       clearedAt: 20,
     }
     appendChange(session, clear)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldGoal(session.snapshotEvents())).toEqual({
       roundsStarted: 0,
       lastRef: { id: change.goal.id, revision: 2 },
diff --git a/packages/goal/goal/tests/projection.spec.ts b/packages/goal/goal/tests/projection.spec.ts
index 45cd1ddb37..77c2e23818 100644
--- a/packages/goal/goal/tests/projection.spec.ts
+++ b/packages/goal/goal/tests/projection.spec.ts
@@ -137,6 +137,7 @@ describe('goal projection unit', () => {
     })
 
     expect(bench.tailValues().goal).toBeNull()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldGoal(bench.session.snapshotEvents()).goal).toBeUndefined()
   })
 
diff --git a/packages/goal/tool-goal/src/authority.ts b/packages/goal/tool-goal/src/authority.ts
index 34d3108e5d..eadc0bd8f9 100644
--- a/packages/goal/tool-goal/src/authority.ts
+++ b/packages/goal/tool-goal/src/authority.ts
@@ -30,6 +30,7 @@ function openTurnEvents(
   ctx: Context,
   agent: Agent,
 ): Pick<GoalToolExecution, 'events' | 'openTurnStartSeq'> {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   const events = agent.session.snapshotEvents()
   const boundary = ctx.sessionProjections.stateOf(agent.session, 'turnBoundary')
   if (boundary === undefined || boundary.openTurnStartSeq === null) {
diff --git a/packages/goal/tool-goal/tests/tool-goal.spec.ts b/packages/goal/tool-goal/tests/tool-goal.spec.ts
index b4b4d54808..00b2feabe2 100644
--- a/packages/goal/tool-goal/tests/tool-goal.spec.ts
+++ b/packages/goal/tool-goal/tests/tool-goal.spec.ts
@@ -68,6 +68,7 @@ function stubAgent(rawId: string, supplied?: Session, suppliedCtx?: Context): St
 
 /** Open one message-triggered turn with its accepted model-visible input. */
 function openTurn(stub: StubAgent, source: MessageSource, text = 'prompt'): number {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   const turn = stub.session.snapshotEvents()
     .filter(event => event.type === 'turn/start')
     .reduce((max, event) => Math.max(max, event.data.turn), 0) + 1
@@ -282,6 +283,7 @@ describe('goal tool execution authority', () => {
     const created = ctx.goals.create(root.agent, { objective: 'resume the fork' })
     closeTurn(root, originalTurn)
     const forkId = SessionId('goal-tool-resumed-fork')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const forkSession = Session.create(forkId, root.session.snapshotEvents(), {
       version: SESSION_FORMAT_VERSION,
       id: forkId,
diff --git a/packages/guard/repeat-tool-reminder/tests/repeat-tool-reminder.spec.ts b/packages/guard/repeat-tool-reminder/tests/repeat-tool-reminder.spec.ts
index 4c505d6cf0..e83b99d1ec 100644
--- a/packages/guard/repeat-tool-reminder/tests/repeat-tool-reminder.spec.ts
+++ b/packages/guard/repeat-tool-reminder/tests/repeat-tool-reminder.spec.ts
@@ -37,6 +37,7 @@ function waitForIdle(ctx: Context, agent: Agent): Promise<void> {
 
 /** Every injected-context user message in the agent's log, flattened to joined text + source for terse assertions. */
 function reminders(agent: Agent): { text: string; source: unknown }[] {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return agent.session.snapshotEvents()
     .filter((e): e is SessionEvent<'user/message'> => e.type === 'user/message' && e.data.source.kind !== 'user')
     .map(e => ({
@@ -337,6 +338,7 @@ describe('fold onto the downstream decision', () => {
     expect(found[1]!.source).toEqual(guardSource('probe', 2))
     expect(found[2]).toEqual({ text: 'downstream-ctx', source: { kind: 'plugin', plugin: 'test' } })
     // The block's feedback reached the tool result unchanged.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const results = agent.session.snapshotEvents().filter((e): e is SessionEvent<'tool/result'> => e.type === 'tool/result')
     expect(results.every(r => r.data.message.content[0].isError)).toBe(true)
     expect(results[1]!.data.message.content[0].content).toEqual([{ type: 'text', text: 'nope' }])
@@ -361,6 +363,7 @@ describe('fold onto the downstream decision', () => {
     const found = reminders(agent)
     expect(found).toHaveLength(1)
     expect(found[0]!.text).toContain('repeating the exact same tool call')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const results = agent.session.snapshotEvents().filter((e): e is SessionEvent<'tool/result'> => e.type === 'tool/result')
     expect(results[1]!.data.message.content[0].content).toEqual([{ type: 'text', text: 'replaced' }])
   })
diff --git a/packages/hooks/hook-protocol/src/invariant.ts b/packages/hooks/hook-protocol/src/invariant.ts
index 660241f8fd..73a817f7de 100644
--- a/packages/hooks/hook-protocol/src/invariant.ts
+++ b/packages/hooks/hook-protocol/src/invariant.ts
@@ -74,6 +74,7 @@ const install: InvariantInstaller = Object.assign((ctx: Context, fail: Invariant
   const seed = (session: Session): HookTrace => {
     const trace: HookTrace = { openTurn: null, pending: new Map() }
     traces.set(session, trace)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     for (const event of session.snapshotEvents()) {
       if (event.type === 'turn/start') trace.openTurn = event.data.turn
       else if (event.type === 'turn/end') trace.openTurn = null
diff --git a/packages/hooks/hook-protocol/tests/events.spec.ts b/packages/hooks/hook-protocol/tests/events.spec.ts
index 45aeca1050..5da0f91911 100644
--- a/packages/hooks/hook-protocol/tests/events.spec.ts
+++ b/packages/hooks/hook-protocol/tests/events.spec.ts
@@ -12,6 +12,7 @@ describe('hook/* session events', () => {
     const session = Session.create(SessionId('s'))
     appendHookInvoked(session, { turn: 1, point: 'PreToolUse', dialect: 'claude-code', handlerId: 'h1', matcher: 'Bash' })
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const ev = session.snapshotEvents().find(e => e.type === 'hook/invoked')
     expect(ev?.type).toBe('hook/invoked')
     if (ev?.type === 'hook/invoked') {
@@ -25,6 +26,7 @@ describe('hook/* session events', () => {
     const session = Session.create(SessionId('s'))
     appendHookInvoked(session, { turn: 2, point: 'Stop', dialect: 'codex', handlerId: 'h2' })
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const ev = session.snapshotEvents().find(e => e.type === 'hook/invoked')
     if (ev?.type === 'hook/invoked') {
       expect('matcher' in ev.data).toBe(false)
@@ -37,6 +39,7 @@ describe('hook/* session events', () => {
       turn: 1, point: 'PreToolUse', handlerId: 'h1',
       stderrSummaryMaxChars: 500, durationMs: 5, output: output({ exitCode: 2, stderr: 'blocked', decision: 'deny' }),
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const full = session.snapshotEvents().find(e => e.type === 'hook/result')
     if (full?.type === 'hook/result') {
       expect(full.data).toEqual({ turn: 1, point: 'PreToolUse', handlerId: 'h1', decision: 'deny', exitCode: 2, stderrSummary: 'blocked', durationMs: 5 })
@@ -48,6 +51,7 @@ describe('hook/* session events', () => {
       turn: 1, point: 'Stop', handlerId: 'h3',
       stderrSummaryMaxChars: 500, durationMs: 5, output: output({ exitCode: undefined, decision: 'allow' }),
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const sparse = session2.snapshotEvents().find(e => e.type === 'hook/result')
     if (sparse?.type === 'hook/result') {
       expect('exitCode' in sparse.data).toBe(false)
@@ -63,6 +67,7 @@ describe('hook/* session events', () => {
     // An explicit decision wins over the continue:false fallback.
     appendHookResult(session, { turn: 1, point: 'Stop', handlerId: 'both', stderrSummaryMaxChars: 500, durationMs: 5, output: output({ continue: false, decision: 'block' }) })
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const decisions = session.snapshotEvents()
       .filter(e => e.type === 'hook/result')
       .map(e => e.type === 'hook/result' ? [e.data.handlerId, e.data.decision] : [])
@@ -75,6 +80,7 @@ describe('hook/* session events', () => {
       turn: 1, point: 'PreToolUse', handlerId: 'long',
       stderrSummaryMaxChars: 500, durationMs: 5, output: output({ exitCode: 2, stderr: `  ${'x'.repeat(600)}  ` }),
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const ev = session.snapshotEvents().find(e => e.type === 'hook/result')
     if (ev?.type === 'hook/result') {
       expect(ev.data.stderrSummary).toBe('x'.repeat(500) + '…')
@@ -87,6 +93,7 @@ describe('hook/* session events', () => {
       turn: 1, point: 'PreToolUse', handlerId: 'edge',
       stderrSummaryMaxChars: 500, durationMs: 5, output: output({ exitCode: 2, stderr: 'y'.repeat(500) }),
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const ev = session.snapshotEvents().find(e => e.type === 'hook/result')
     if (ev?.type === 'hook/result') {
       expect(ev.data.stderrSummary).toBe('y'.repeat(500))
@@ -98,7 +105,9 @@ describe('hook/* session events', () => {
     appendHookInvoked(session, { turn: 1, point: 'PreToolUse', dialect: 'claude-code', handlerId: 'pair-1' })
     appendHookResult(session, { turn: 1, point: 'PreToolUse', handlerId: 'pair-1', stderrSummaryMaxChars: 500, durationMs: 5, output: output({ decision: 'allow' }) })
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const invoked = session.snapshotEvents().find(e => e.type === 'hook/invoked')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const result = session.snapshotEvents().find(e => e.type === 'hook/result')
     expect(invoked?.type === 'hook/invoked' && invoked.data.handlerId).toBe('pair-1')
     expect(result?.type === 'hook/result' && result.data.handlerId).toBe('pair-1')
diff --git a/packages/hooks/hooks-claude-code/tests/bridge.spec.ts b/packages/hooks/hooks-claude-code/tests/bridge.spec.ts
index 68f6c8319d..ec6a9c2453 100644
--- a/packages/hooks/hooks-claude-code/tests/bridge.spec.ts
+++ b/packages/hooks/hooks-claude-code/tests/bridge.spec.ts
@@ -71,6 +71,7 @@ function waitForIdle(_ctx: Context, agent: Agent): Promise<void> {
 }
 
 function events(agent: Agent): readonly SessionEvent[] {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return agent.session.snapshotEvents()
 }
 
diff --git a/packages/hooks/hooks-claude-code/tests/coverage-cases.ts b/packages/hooks/hooks-claude-code/tests/coverage-cases.ts
index 8627a970cd..1edfcb2500 100644
--- a/packages/hooks/hooks-claude-code/tests/coverage-cases.ts
+++ b/packages/hooks/hooks-claude-code/tests/coverage-cases.ts
@@ -52,6 +52,7 @@ async function harness(configPath: string, adapter: MockAdapter, opts: HarnessOp
 function waitForIdle(_ctx: Context, agent: Agent): Promise<void> {
   return agent.whenIdle()
 }
+// oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
 function events(agent: Agent): readonly SessionEvent[] { return agent.session.snapshotEvents() }
 /** Poll until `predicate` holds or the deadline passes — robust to detached
  * emit-listener hooks firing on a `.then` (a fixed sleep flakes under load). */
diff --git a/packages/hooks/hooks-codex/tests/bridge.spec.ts b/packages/hooks/hooks-codex/tests/bridge.spec.ts
index 1ef87de7c1..2ffb062a0c 100644
--- a/packages/hooks/hooks-codex/tests/bridge.spec.ts
+++ b/packages/hooks/hooks-codex/tests/bridge.spec.ts
@@ -54,6 +54,7 @@ async function harness(dir: string, adapter: MockAdapter, beforeHooks?: (ctx: Co
 function waitForIdle(_ctx: Context, agent: Agent): Promise<void> {
   return agent.whenIdle()
 }
+// oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
 function events(agent: Agent): readonly SessionEvent[] { return agent.session.snapshotEvents() }
 
 /** Poll `predicate` until true or the deadline passes (detached hook effects can't be awaited directly). */
diff --git a/packages/hooks/hooks-codex/tests/coverage-cases.ts b/packages/hooks/hooks-codex/tests/coverage-cases.ts
index 12a3c370ab..91956f33a5 100644
--- a/packages/hooks/hooks-codex/tests/coverage-cases.ts
+++ b/packages/hooks/hooks-codex/tests/coverage-cases.ts
@@ -42,6 +42,7 @@ async function harness(configPath: string, adapter: MockAdapter, opts: HarnessOp
 function waitForIdle(_ctx: Context, agent: Agent): Promise<void> {
   return agent.whenIdle()
 }
+// oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
 function events(agent: Agent): readonly SessionEvent[] { return agent.session.snapshotEvents() }
 /** Poll until `predicate` holds or the deadline passes — robust to detached
  * emit-listener hooks firing on a `.then` (a fixed sleep flakes under load). */
diff --git a/packages/interaction/commands/src/invariant.ts b/packages/interaction/commands/src/invariant.ts
index 7bce241224..5eb8194b1a 100644
--- a/packages/interaction/commands/src/invariant.ts
+++ b/packages/interaction/commands/src/invariant.ts
@@ -35,6 +35,7 @@ const install: InvariantInstaller = Object.assign((ctx: Context, fail: Invariant
       fail(`command/done ${JSON.stringify(event.data.commandId)} pairs no prior command/run in this log`)
     }
     const source = event.data.sourceEventSeq
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const sourceEvent = source === undefined ? undefined : session.eventAt(source)
     if (source !== undefined
       && (event.data.kind !== 'success'
@@ -46,6 +47,7 @@ const install: InvariantInstaller = Object.assign((ctx: Context, fail: Invariant
     }
   }
   for (const session of ctx.sessions.list()) {
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     for (const event of session.snapshotEvents()) validateEvent(session, event)
   }
   ctx.on('internal/dispatch', (_mode, eventName, args) => {
diff --git a/packages/interaction/commands/tests/commands.spec.ts b/packages/interaction/commands/tests/commands.spec.ts
index 92a12d921d..aef91060c8 100644
--- a/packages/interaction/commands/tests/commands.spec.ts
+++ b/packages/interaction/commands/tests/commands.spec.ts
@@ -33,6 +33,7 @@ async function mintAgentScope(ctx: Context, name: string): Promise<{ scope: Scop
 
 /** The lifecycle slice of one agent's log (boundary markers stripped). */
 function lifecycleOf(agent: Agent): Array<{ type: string; data: unknown }> {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return agent.session.snapshotEvents()
     .filter(event => event.type === 'command/run' || event.type === 'command/done')
     .map(event => ({ type: event.type, data: event.data }))
@@ -316,6 +317,7 @@ describe('CommandRuntime', () => {
     // The execution's pairing id is the logged one (RPC-level correlation).
     expect(execution?.commandId).toBe(ids[0])
     // Direct log-only appends: no turn is opened for the pair on an idle log.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().map(event => event.type)).toEqual([
       'command/run', 'command/done',
     ])
@@ -354,6 +356,7 @@ describe('CommandRuntime', () => {
     await ctx.commands.execute(agent, '/private keep this once', [], new AbortController().signal)
 
     expect(seen).toHaveBeenCalledWith(expect.objectContaining({ rawInput: ' keep this once' }))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const run = agent.session.snapshotEvents().find(event => event.type === 'command/run')
     expect(run?.type).toBe('command/run')
     expect(run?.type === 'command/run' && Object.hasOwn(run.data, 'args')).toBe(false)
@@ -428,6 +431,7 @@ describe('CommandRuntime', () => {
     const signal = new AbortController().signal
     await ctx.commands.execute(agent, 'not a command', [], signal)
     await ctx.commands.execute(agent, '/missing', [], signal)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents()).toEqual([])
   })
 
@@ -437,6 +441,7 @@ describe('CommandRuntime', () => {
     ctx.commands.register(command('mid'))
     agent.session.append('turn/start', { turn: 1 })
     await ctx.commands.execute(agent, '/mid', [], new AbortController().signal)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().map(event => event.type)).toEqual([
       'turn/start', 'command/run', 'command/done',
     ])
diff --git a/packages/interaction/permission-presets/src/invariant.ts b/packages/interaction/permission-presets/src/invariant.ts
index dee9db2451..700b42ba6c 100644
--- a/packages/interaction/permission-presets/src/invariant.ts
+++ b/packages/interaction/permission-presets/src/invariant.ts
@@ -21,6 +21,7 @@ function validateEvent(ctx: Context, event: SessionEvent, fail: InvariantFailure
 /** Install validation that loaded and newly appended preset events remain resolvable. */
 const install: InvariantInstaller = Object.assign((ctx: Context, fail: InvariantFailure) => {
   for (const session of ctx.sessions.list()) {
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     for (const event of session.snapshotEvents()) validateEvent(ctx, event, fail)
   }
   ctx.on('internal/dispatch', (_mode, eventName, args) => {
diff --git a/packages/interaction/permission-presets/tests/permission-presets.spec.ts b/packages/interaction/permission-presets/tests/permission-presets.spec.ts
index 3da5749e2b..552373474f 100644
--- a/packages/interaction/permission-presets/tests/permission-presets.spec.ts
+++ b/packages/interaction/permission-presets/tests/permission-presets.spec.ts
@@ -151,6 +151,7 @@ describe('PermissionPresetService', () => {
     const ctx = await mounted()
     const session = freshSession('sess-set')
     ctx.permissionPresets.set(session, 'danger-full-access')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().map(e => [e.type, e.data])).toEqual([
       ['permission/preset', { preset: 'danger-full-access' }],
       ['sandbox/mode', { mode: 'danger-full-access' }],
@@ -162,6 +163,7 @@ describe('PermissionPresetService', () => {
     const ctx = await mounted()
     const session = freshSession('sess-noop')
     ctx.permissionPresets.set(session, 'workspace-write')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(0)
   })
 
@@ -173,6 +175,7 @@ describe('PermissionPresetService', () => {
     // the changed knob.
     session.append('sandbox/mode', { mode: 'read-only' })
     ctx.permissionPresets.set(session, 'danger-full-access')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const tail = session.snapshotEvents().slice(4)
     expect(tail.map(e => [e.type, e.data])).toEqual([
       ['permission/preset', { preset: 'danger-full-access' }],
@@ -208,6 +211,7 @@ describe('PermissionPresetService', () => {
     const ctx = await mounted({ approvalDefault: undefined })
     const session = freshSession('sess-standin')
     ctx.permissionPresets.set(session, 'workspace-write')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(0)
     expect(ctx.permissionPresets.current(session)).toBe('workspace-write')
   })
@@ -217,6 +221,7 @@ describe('new-session default', () => {
   it('pins the current setting into each new session without changing earlier sessions', async () => {
     const ctx = await mountedStore()
     const first = ctx.sessions.create(SessionId('first'))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(first.snapshotEvents().map(event => [event.type, event.data])).toEqual([
       ['permission/preset', { preset: 'workspace-write' }],
       ['sandbox/mode', { mode: 'workspace-write' }],
@@ -230,6 +235,7 @@ describe('new-session default', () => {
     const second = ctx.sessions.create(SessionId('second'))
     expect(ctx.permissionPresets.current(first)).toBe('workspace-write')
     expect(ctx.permissionPresets.current(second)).toBe('danger-full-access')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(second.snapshotEvents().map(event => event.type)).toEqual([
       'permission/preset', 'sandbox/mode', 'approval/policy',
     ])
@@ -243,8 +249,10 @@ describe('new-session default', () => {
     const legacy = freshSession('legacy-source')
     legacy.append('turn/start', { turn: 1 })
     legacy.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const resumed = ctx.sessions.create(SessionId('legacy-resumed'), { seed: legacy.snapshotEvents() })
     expect(ctx.permissionPresets.current(resumed)).toBe('workspace-write')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(resumed.snapshotEvents().slice(-3).map(event => event.type)).toEqual([
       'permission/preset', 'sandbox/mode', 'approval/policy',
     ])
@@ -257,6 +265,7 @@ describe('new-session default', () => {
     })
     const resumed = ctx.sessions.create(SessionId('empty-resumed'), { seed: [] })
     expect(ctx.permissionPresets.current(resumed)).toBe('workspace-write')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(resumed.snapshotEvents().map(event => event.type)).toEqual([
       'session/end-seed', 'permission/preset', 'sandbox/mode', 'approval/policy',
     ])
@@ -274,9 +283,11 @@ describe('new-session default', () => {
     })
     ctx.provide('approval', { config: { policy: 'ask' } })
     const existing = ctx.sessions.create(SessionId('existing-before-permission'))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(existing.snapshotEvents()).toEqual([])
 
     await ctx.plugin(PermissionPresetService, {})
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(existing.snapshotEvents().map(event => event.type)).toEqual([
       'permission/preset', 'sandbox/mode', 'approval/policy',
     ])
@@ -302,6 +313,7 @@ describe('new-session default', () => {
     // The remount sweep must read the folded knob events instead of treating
     // the session as fresh; no default preset events may overwrite the
     // overrides (read-only + never matches no preset table entry).
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(existing.snapshotEvents().map(event => event.type)).toEqual([
       'sandbox/mode', 'approval/policy',
     ])
@@ -313,7 +325,9 @@ describe('new-session default', () => {
     const partial = freshSession('partial-source')
     partial.append('sandbox/mode', { mode: 'workspace-write' })
     partial.append('approval/policy', { policy: 'ask' })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const resumed = ctx.sessions.create(SessionId('partial-resumed'), { seed: partial.snapshotEvents() })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(resumed.snapshotEvents().at(-1)).toMatchObject({
       type: 'permission/preset',
       data: { preset: 'workspace-write' },
@@ -322,8 +336,10 @@ describe('new-session default', () => {
     const custom = freshSession('custom-source')
     custom.append('sandbox/mode', { mode: 'read-only' })
     custom.append('approval/policy', { policy: 'never' })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const unmatched = ctx.sessions.create(SessionId('custom-resumed'), { seed: custom.snapshotEvents() })
     expect(ctx.permissionPresets.current(unmatched)).toBe(CUSTOM_PRESET)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(unmatched.snapshotEvents().at(-1)?.type).toBe('session/end-seed')
   })
 
@@ -331,7 +347,9 @@ describe('new-session default', () => {
     const ctx = await mountedStore({ approvalDefault: undefined })
     const partial = freshSession('approval-fallback-source')
     partial.append('sandbox/mode', { mode: 'workspace-write' })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const resumed = ctx.sessions.create(SessionId('approval-fallback-resumed'), { seed: partial.snapshotEvents() })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(resumed.snapshotEvents().at(-1)).toMatchObject({
       type: 'approval/policy',
       data: { policy: 'ask' },
diff --git a/packages/interaction/permission-presets/tests/projection.spec.ts b/packages/interaction/permission-presets/tests/projection.spec.ts
index 53022e9089..9a7ef5d0d3 100644
--- a/packages/interaction/permission-presets/tests/projection.spec.ts
+++ b/packages/interaction/permission-presets/tests/projection.spec.ts
@@ -99,6 +99,7 @@ describe('/permission command', () => {
         text: 'The approval policy changed from "ask" to "never" (changed by the user).',
       }],
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const run = session.snapshotEvents().find(event => event.type === 'command/run')
     expect(run?.data).toMatchObject({ name: 'permission', args: ' danger-full-access' })
   })
@@ -111,12 +112,14 @@ describe('/permission command', () => {
       kind: 'success',
       text: 'current preset workspace-write (available: workspace-write, danger-full-access)',
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event => event.type === 'permission/preset')).toHaveLength(1)
   })
 
   it('rejects an unknown preset without touching the log', async () => {
     const { ctx, session } = await harness()
     const { agent } = await agentFor(ctx, session)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const before = session.snapshotEvents().filter(event =>
       event.type !== 'command/run' && event.type !== 'command/done')
     const execution = await ctx.commands.execute(agent, '/permission yolo', [], new AbortController().signal)
@@ -127,6 +130,7 @@ describe('/permission command', () => {
       kind: 'error',
       text: 'unknown preset "yolo" (available: workspace-write, danger-full-access)',
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event =>
       event.type !== 'command/run' && event.type !== 'command/done')).toEqual(before)
   })
diff --git a/packages/interaction/user-approval/src/index.ts b/packages/interaction/user-approval/src/index.ts
index 8e1a8d05d4..8a5f506bf1 100644
--- a/packages/interaction/user-approval/src/index.ts
+++ b/packages/interaction/user-approval/src/index.ts
@@ -76,6 +76,7 @@ const ASK_SENTENCE = 'Approval policy: ask. Operations that require approval may
  */
 function hasOpenTurn(session: Session): boolean {
   for (let seq = session.seq - 1; seq >= 0; seq -= 1) {
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const type = session.eventAt(SessionSeq(seq))?.type
     if (type === 'turn/start') return true
     if (type === 'turn/end') return false
@@ -243,6 +244,7 @@ export class ApprovalService extends Service {
    */
   overrideOf(session: Session): ApprovalPolicy | undefined {
     for (let seq = session.seq - 1; seq >= 0; seq -= 1) {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const event = session.eventAt(SessionSeq(seq))
       if (event?.type === 'approval/policy') return event.data.policy
     }
diff --git a/packages/interaction/user-approval/src/invariant.ts b/packages/interaction/user-approval/src/invariant.ts
index 8ff7a9953e..d356ca3698 100644
--- a/packages/interaction/user-approval/src/invariant.ts
+++ b/packages/interaction/user-approval/src/invariant.ts
@@ -64,6 +64,7 @@ const install: InvariantInstaller = Object.assign((ctx: Context, fail: Invariant
   const seed = (session: Session): ApprovalTrace => {
     const trace: ApprovalTrace = { openTurn: null, pending: new Set() }
     traces.set(session, trace)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     for (const event of session.snapshotEvents()) {
       if (event.type === 'turn/start') trace.openTurn = event.data.turn
       else if (event.type === 'turn/end') trace.openTurn = null
diff --git a/packages/interaction/user-approval/tests/approval.spec.ts b/packages/interaction/user-approval/tests/approval.spec.ts
index 70e1abcf4e..c0fce76425 100644
--- a/packages/interaction/user-approval/tests/approval.spec.ts
+++ b/packages/interaction/user-approval/tests/approval.spec.ts
@@ -132,8 +132,11 @@ describe('ApprovalService.request', () => {
 
     await expect(ctx.approval.request(requestOf(agent))).resolves.toBe('allowed-once')
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const audit = session.snapshotEvents().filter(event => event.type.startsWith('approval/'))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const asked = session.snapshotEvents().find((event): event is SessionEvent<'approval/asked'> => event.type === 'approval/asked')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const decided = session.snapshotEvents().find((event): event is SessionEvent<'approval/decided'> => event.type === 'approval/decided')
     expect(audit.map(event => event.type)).toEqual(['approval/asked', 'approval/decided'])
     expect(decided?.data.id).toBe(asked?.data.id)
@@ -155,8 +158,11 @@ describe('ApprovalService.request', () => {
 
     await expect(ctx.approval.request(requestOf(agent))).resolves.toBe('rejected')
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const audit = session.snapshotEvents().filter(event => event.type.startsWith('approval/'))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const asked = session.snapshotEvents().find((event): event is SessionEvent<'approval/asked'> => event.type === 'approval/asked')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const decided = session.snapshotEvents().find((event): event is SessionEvent<'approval/decided'> => event.type === 'approval/decided')
     expect(audit.map(event => event.type)).toEqual(['approval/asked', 'approval/decided'])
     expect(decided?.data).toMatchObject({ id: asked?.data.id, outcome: 'rejected' })
@@ -376,6 +382,7 @@ describe('approval policy (the approval/policy fold)', () => {
     setApprovalPolicy(session, 'never')
     setApprovalPolicy(session, 'ask')
     expect(service.overrideOf(session)).toBe('ask')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().at(-1)).toMatchObject({ type: 'approval/policy', data: { policy: 'ask' } })
   })
 
@@ -415,7 +422,9 @@ describe('approval policy (the approval/policy fold)', () => {
     await expect(ctx.approval.request({ agent, toolName: 'bash' })).resolves.toBe('rejected')
     expect(consulted).not.toHaveBeenCalled()
     // The audit pair still lands on the session log.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(e => e.type === 'approval/asked')).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(e => e.type === 'approval/decided')).toHaveLength(1)
   })
 
diff --git a/packages/llm/llm-retry/src/invariant.ts b/packages/llm/llm-retry/src/invariant.ts
index 8655f6d661..afd1be1ccd 100644
--- a/packages/llm/llm-retry/src/invariant.ts
+++ b/packages/llm/llm-retry/src/invariant.ts
@@ -147,6 +147,7 @@ function validateStarted(
 
 /** Validate every retry record already present in one loaded session. */
 function validateSession(session: Session, fail: InvariantFailure): void {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   const events = session.snapshotEvents()
   for (const [index, event] of events.entries()) {
     if (event.type === 'llm/retry') validateRetry(events.slice(0, index), event, fail)
@@ -161,7 +162,9 @@ const install: InvariantInstaller = Object.assign((ctx: Context, fail: Invariant
   ctx.on('internal/dispatch', (_mode, eventName, args) => {
     if (eventName !== 'session/event') return
     const [session, event] = args as [Session, SessionEvent]
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     if (event.type === 'llm/retry') validateRetry(session.snapshotEvents(), event, fail)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     else if (event.type === 'llm/retry-started') validateStarted(session.snapshotEvents(), event, fail)
   }, { global: true })
 }, { inject: ['sessions'] })
diff --git a/packages/llm/llm-retry/tests/loader-composition.spec.ts b/packages/llm/llm-retry/tests/loader-composition.spec.ts
index 5c5a177040..7b95f6982d 100644
--- a/packages/llm/llm-retry/tests/loader-composition.spec.ts
+++ b/packages/llm/llm-retry/tests/loader-composition.spec.ts
@@ -112,6 +112,7 @@ describe('real Loader composition', () => {
     await agent.whenIdle()
 
     expect(adapter.requests).toBe(2)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'llm/retry')).toHaveLength(1)
     expect(agent.session.deriveMessages().at(-1)).toMatchObject({
       role: 'assistant',
diff --git a/packages/llm/llm-retry/tests/retry.spec.ts b/packages/llm/llm-retry/tests/retry.spec.ts
index e7f0ededb2..cf61fcd4fa 100644
--- a/packages/llm/llm-retry/tests/retry.spec.ts
+++ b/packages/llm/llm-retry/tests/retry.spec.ts
@@ -215,6 +215,7 @@ describe('provider-routed retry policy', () => {
     await idle
 
     expect(adapter.requests).toHaveLength(2)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(item => item.type === 'step/start').map(item => item.data))
       .toEqual([{ turn: 1, step: 1 }])
     expect(agent.session.deriveMessages().at(-1)).toEqual({
@@ -250,6 +251,7 @@ describe('provider-routed retry policy', () => {
     await idle
 
     expect(adapter.requests).toHaveLength(2)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'assistant/message').map(event => ({
       turn: event.data.turn,
       step: event.data.step,
@@ -286,7 +288,9 @@ describe('provider-routed retry policy', () => {
     await vi.advanceTimersByTimeAsync(500)
     await idle
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const retryEvent = agent.session.snapshotEvents().find(event => event.type === 'llm/retry')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const failedAttempts = agent.session.snapshotEvents().filter((event): event is SessionEvent<'assistant/attempt'> =>
       event.type === 'assistant/attempt'
       && retryEvent !== undefined
@@ -294,12 +298,14 @@ describe('provider-routed retry policy', () => {
     )
     expect(failedAttempts).toHaveLength(1)
     expect(expandAssistantStream(failedAttempts[0]!.data.stream)).toHaveLength(7)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const assistantMessages = agent.session.snapshotEvents().filter(event => event.type === 'assistant/message')
     expect(assistantMessages.map(event => ({
       turn: event.data.turn,
       step: event.data.step,
     }))).toEqual([{ turn: 1, step: 1 }])
     expect(assistantMessages[0]?.sourceEventSeqs).toBeUndefined()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'tool/call')).toBe(false)
     expect(toolExecutions).toBe(0)
     expect(agent.session.deriveMessages().at(-1)).toMatchObject({
@@ -337,7 +343,9 @@ describe('provider-routed retry policy', () => {
     await idle
 
     expect(adapter.requests).toHaveLength(3)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'llm/retry')).toHaveLength(2)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
       type: 'turn/end',
       data: { reason: { kind: 'error', error: { message: 'busy three', code: 'SERVER' } } },
@@ -393,6 +401,7 @@ describe('provider-routed retry policy', () => {
     rejectedAgent.followup(createUserMessage({ content: [{ type: 'text', text: 'go' }], source: { kind: 'user' } }))
     await rejectedIdle
     expect(rejected.requests).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(rejectedAgent.session.snapshotEvents().some(event => event.type === 'llm/retry')).toBe(false)
   })
 
@@ -431,6 +440,7 @@ describe('provider-routed retry policy', () => {
     agent.followup(createUserMessage({ content: [{ type: 'text', text: 'go' }], source: { kind: 'user' } }))
     await idle
     expect(adapter.requests).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'llm/retry')).toBe(false)
     expect(vi.getTimerCount()).toBe(0)
   })
@@ -450,7 +460,9 @@ describe('provider-routed retry policy', () => {
     await idle
 
     expect(adapter.requests).toHaveLength(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'llm/retry')).toBe(false)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = agent.session.snapshotEvents().at(-1)
     expect(end).toMatchObject({
       type: 'turn/end',
@@ -479,6 +491,7 @@ describe('provider-routed retry policy', () => {
     const normalIdle = waitForIdle(context, normalAgent)
     normalAgent.followup(createUserMessage({ content: [{ type: 'text', text: 'normal' }], source: { kind: 'user' } }))
     await normalIdle
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(normalAgent.session.snapshotEvents().some(event => event.type === 'llm/retry')).toBe(false)
 
     const alwaysAgent = await context.agentLoop.create(SessionId('retry-provider-always'), {
@@ -565,6 +578,7 @@ describe('provider-routed retry policy', () => {
     await idle
 
     expect(adapter.requests.map(request => request.provider)).toEqual(['mock', 'other', 'other'])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'llm/retry').map(event => ({
       provider: event.data.provider,
       retry: event.data.retry,
@@ -676,6 +690,7 @@ describe('provider-routed retry policy', () => {
     await vi.runAllTimersAsync()
     await idle
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = agent.session.snapshotEvents().filter(event => event.type === 'llm/retry')
     expect(adapter.requests).toHaveLength(5)
     expect(events.map(event => ({
@@ -720,6 +735,7 @@ describe('provider-routed retry policy', () => {
     const retriedContext = JSON.stringify(adapter.requests[1]?.messages)
     expect(retriedContext).not.toContain(diagnostic)
     expect(retriedContext).not.toContain('discarded partial output')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event =>
       event.type === 'llm/retry' && event.data.failure.message === diagnostic,
     )).toBe(true)
@@ -742,6 +758,7 @@ describe('provider-routed retry policy', () => {
     await idle
 
     expect(adapter.requests).toHaveLength(2)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'llm/retry')).toBe(false)
   })
 
@@ -793,6 +810,7 @@ describe('provider-routed retry policy', () => {
     await vi.advanceTimersByTimeAsync(60_000)
 
     expect(adapter.requests).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'step/start')).toHaveLength(1)
     expect(vi.getTimerCount()).toBe(0)
   })
@@ -834,6 +852,7 @@ describe('provider-routed retry policy', () => {
     expect(order[0]).toBe('downstream')
     expect(order).toEqual(expect.arrayContaining(['disposed', 'idle']))
     expect(adapter.requests).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'llm/retry')).toBe(false)
   })
 
@@ -872,6 +891,7 @@ describe('provider-routed retry policy', () => {
 
     expect(order).toEqual(['downstream', 'idle'])
     expect(adapter.requests).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
       type: 'turn/end',
       data: { reason: { kind: 'aborted' } },
@@ -909,6 +929,7 @@ describe('provider-routed retry policy', () => {
     await idle
 
     expect(adapter.requests).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
       type: 'turn/end',
       data: { reason: { kind: 'aborted' } },
@@ -966,6 +987,7 @@ describe('provider-routed retry policy', () => {
     await idle
 
     expect(adapter.requests).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
       type: 'turn/end',
       data: { reason: { kind: 'aborted' } },
@@ -995,7 +1017,9 @@ describe('provider-routed retry policy', () => {
     await idle
 
     expect(adapter.requests).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'llm/retry')).toBe(false)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
       type: 'turn/end',
       data: { reason: { kind: 'aborted' } },
@@ -1019,6 +1043,7 @@ describe('provider-routed retry policy', () => {
     await idle
 
     expect(adapter.requests).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'llm/retry')).toHaveLength(1)
     expect(vi.getTimerCount()).toBe(0)
   })
diff --git a/packages/llm/llm-retry/tests/transport-recovery.spec.ts b/packages/llm/llm-retry/tests/transport-recovery.spec.ts
index ba218842de..b14db6e47e 100644
--- a/packages/llm/llm-retry/tests/transport-recovery.spec.ts
+++ b/packages/llm/llm-retry/tests/transport-recovery.spec.ts
@@ -102,9 +102,11 @@ describe('bounded retry through the real DeepSeek HTTP/SSE adapter', () => {
 
     expect(server).toBeDefined()
     expect(server?.requests).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'step/start')
       .map(event => [event.data.turn, event.data.step]))
       .toEqual([[1, 1]])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'llm/retry').map(event => event.data.failure.code))
       .toEqual(['TRANSPORT'])
     expect(finalAssistantText(agent)).toBe('connected after retry')
@@ -131,7 +133,9 @@ describe('bounded retry through the real DeepSeek HTTP/SSE adapter', () => {
 
     expect(server.requests).toHaveLength(2)
     expect(server.requests[0]?.body).toEqual(server.requests[1]?.body)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const retryEvent = agent.session.snapshotEvents().find(event => event.type === 'llm/retry')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const failedAttempts = agent.session.snapshotEvents().filter((event): event is SessionEvent<'assistant/attempt'> =>
       event.type === 'assistant/attempt'
       && retryEvent !== undefined
@@ -139,9 +143,11 @@ describe('bounded retry through the real DeepSeek HTTP/SSE adapter', () => {
     )
     expect(failedAttempts).toHaveLength(1)
     expect(expandAssistantStream(failedAttempts[0]!.data.stream)).toHaveLength(failedChunkCount)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'assistant/message')
       .map(event => [event.data.turn, event.data.step]))
       .toEqual([[1, 1]])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'llm/retry').map(event => event.data.failure.code))
       .toEqual(['TRANSPORT'])
     expect(finalAssistantText(agent)).toBe('recovered response')
@@ -162,11 +168,14 @@ describe('bounded retry through the real DeepSeek HTTP/SSE adapter', () => {
 
     expect(server.requests).toHaveLength(2)
     expect(server.requests[0]?.body).toEqual(server.requests[1]?.body)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'llm/retry').map(event => event.data.failure.code))
       .toEqual(['EMPTY_RESPONSE'])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'assistant/message')
       .map(event => [event.data.turn, event.data.step]))
       .toEqual([[1, 1]])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
       type: 'turn/end',
       data: { reason: { kind: 'completed' } },
@@ -189,10 +198,14 @@ describe('bounded retry through the real DeepSeek HTTP/SSE adapter', () => {
     await sendAndWait(context, agent)
 
     expect(server.requests).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const attempt = agent.session.snapshotEvents().find(event => event.type === 'assistant/attempt' && event.data.turn === 1)
     expect(attempt?.type === 'assistant/attempt' ? expandAssistantStream(attempt.data.stream) : []).toHaveLength(3)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'assistant/message')).toBe(false)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'llm/retry')).toBe(false)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
       type: 'turn/end',
       data: { reason: { kind: 'error', error: { message: 'SSE stream ended without [DONE]', code: 'STREAM_CLOSED' } } },
@@ -215,6 +228,7 @@ describe('bounded retry through the real DeepSeek HTTP/SSE adapter', () => {
     await sendAndWait(context, agent)
 
     expect(server.requests.map(record => record.behavior)).toEqual(['stall', 'success'])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'llm/retry').map(event => event.data.failure.code))
       .toEqual(['TIMEOUT'])
     expect(finalAssistantText(agent)).toBe('recovered after timeout')
@@ -233,8 +247,11 @@ describe('bounded retry through the real DeepSeek HTTP/SSE adapter', () => {
     await sendAndWait(context, agent)
 
     expect(server.requests).toHaveLength(3)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'step/start')).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'llm/retry')).toHaveLength(2)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = agent.session.snapshotEvents().at(-1)
     expect(end).toMatchObject({
       type: 'turn/end',
diff --git a/packages/llm/token-meter/src/index.ts b/packages/llm/token-meter/src/index.ts
index 348213ef4d..2693af5913 100644
--- a/packages/llm/token-meter/src/index.ts
+++ b/packages/llm/token-meter/src/index.ts
@@ -229,7 +229,8 @@ export class TokenMeter extends Service {
     }
 
     while (state.consumedEvents < session.seq) {
-      // oxlint-disable-next-line typescript/no-non-null-assertion -- contiguous session seqs index the durable log
+      // Contiguous session seqs index the durable log; existing Session history read, migration deferred.
+      // oxlint-disable-next-line typescript/no-non-null-assertion, typescript/no-deprecated
       const event = session.eventAt(SessionSeq(state.consumedEvents))!
       this._foldEvent(state, event)
       state.consumedEvents = SessionLogOffset(state.consumedEvents + 1)
diff --git a/packages/llm/token-meter/tests/context-breakdown-projection.spec.ts b/packages/llm/token-meter/tests/context-breakdown-projection.spec.ts
index 769f00e0ec..35f64858f9 100644
--- a/packages/llm/token-meter/tests/context-breakdown-projection.spec.ts
+++ b/packages/llm/token-meter/tests/context-breakdown-projection.spec.ts
@@ -292,6 +292,7 @@ describe('contextBreakdown session projection', () => {
     const first = appendUser(session, 'first message')
     const last = appendUser(session, 'last message')
     const definition = contextBreakdownProjectionDefinition
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const state = session.snapshotEvents().reduce(definition.apply, definition.init())
     const before = JSON.stringify(state)
     const replacement = session.append('user/message', createUserMessage({
@@ -382,8 +383,10 @@ describe('contextBreakdown session projection', () => {
     const { session } = await harness()
     const head = appendSystem(session, 'head')
     const definition = contextBreakdownProjectionDefinition
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const state = session.snapshotEvents().reduce(definition.apply, definition.init())
     replaceSystem(session, head, 'same')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const next = definition.apply(state, session.snapshotEvents().at(-1)!)
     expect(next).not.toBe(state)
     expect(definition.wire.view(next)).toBe(definition.wire.view(state))
@@ -421,6 +424,7 @@ describe('contextBreakdown session projection', () => {
       stale, [replacement], SessionLogOffset(replacement.seq), session.header, session.inheritedEventCount,
     )).toThrow('re-read from seq 0')
     const replayed = ctx.sessionProjections.restore(
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       stale, session.snapshotEvents(), SessionLogOffset(0), session.header, session.inheritedEventCount,
     )
     expect(replayed.snapshot.values.contextBreakdown).toEqual(projected(ctx, session))
@@ -433,6 +437,7 @@ describe('contextBreakdown session projection', () => {
       },
     }
     expect(() => ctx.sessionProjections.restore(
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       invalid, session.snapshotEvents(), SessionLogOffset(0), session.header, session.inheritedEventCount,
     )).toThrow()
   })
@@ -452,6 +457,7 @@ describe('contextBreakdown session projection', () => {
       expect.soft(ctx.sessionProjections.viewCheckpoint(checkpoint)).not.toHaveProperty('contextBreakdown')
       expect.soft(ctx.sessionProjections.restoreFloor(checkpoint)).toBe(0)
       const restored = ctx.sessionProjections.restore(
+        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         checkpoint, session.snapshotEvents(), SessionLogOffset(0), session.header, session.inheritedEventCount,
       )
       expect(restored.snapshot.values.contextBreakdown).toEqual({
diff --git a/packages/llm/token-meter/tests/token-meter.spec.ts b/packages/llm/token-meter/tests/token-meter.spec.ts
index e795ea5507..bd8218beb0 100644
--- a/packages/llm/token-meter/tests/token-meter.spec.ts
+++ b/packages/llm/token-meter/tests/token-meter.spec.ts
@@ -230,6 +230,7 @@ describe('TokenMeter pricing', () => {
     const result = service.measure(session)
     expect(result.baseline.kind).toBe('estimated')
     expect(result.totalTokens).toBeGreaterThan(result.surfaceTokens)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(result.logRevision).toBe(session.snapshotEvents().length)
     expectSurfaceTotal(result)
   })
@@ -423,6 +424,7 @@ describe('replay anchors and surface folds', () => {
       content: [{ type: 'text', text: 'new tail' }],
       source: { kind: 'user' },
     }), { surfaceOp: 'append' })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const seeded = Session.create(SessionId('surface-seeded'), original.snapshotEvents())
     const before = service.measure(seeded)
     expect(before.nodes).toHaveLength(2)
@@ -436,7 +438,9 @@ describe('replay anchors and surface folds', () => {
     }), { surfaceOp: { op: 'replace', startSeq: first, endSeq: first }, sourceEventSeqs: [first] })
     const after = service.measure(seeded)
     expect(after.nodes).toHaveLength(2)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(after.nodes[0]!.seq).toBe(seeded.snapshotEvents().length - 1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(after.logRevision).toBe(seeded.snapshotEvents().length)
     expect(Object.isFrozen(after.nodes)).toBe(true)
     expect(Object.isFrozen(after.nodes[0])).toBe(true)
@@ -444,6 +448,7 @@ describe('replay anchors and surface folds', () => {
     expectSurfaceTotal(after)
     expect(before.nodes).toHaveLength(2)
     // The earlier snapshot still reports the log it measured: seed + boundary.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(before.logRevision).toBe(original.snapshotEvents().length + 1)
     expect(before.surfaceDeltaTokens).toBeGreaterThan(0)
   })
@@ -455,6 +460,7 @@ describe('replay anchors and surface folds', () => {
       durableText: '',
     })
     const measurement = meter().measure(session)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const assistant = session.snapshotEvents().find(event => event.type === 'assistant/message')!
     expect(measurement.nodes).toEqual([{ seq: assistant.seq, tokens: 0, heuristicTokens: 0 }])
     expect(measurement.surfaceTokens).toBe(0)
diff --git a/packages/plan/plan-mode/src/invariant.ts b/packages/plan/plan-mode/src/invariant.ts
index 72a319fc45..60389c8879 100644
--- a/packages/plan/plan-mode/src/invariant.ts
+++ b/packages/plan/plan-mode/src/invariant.ts
@@ -28,6 +28,7 @@ function validateEvent(event: SessionEvent, fail: InvariantFailure): void {
 /** Install validation for loaded and newly appended plan-mode state. */
 const install: InvariantInstaller = Object.assign((ctx: Context, fail: InvariantFailure) => {
   const seed = (session: Session): void => {
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     for (const event of session.snapshotEvents()) validateEvent(event, fail)
   }
   for (const session of ctx.sessions.list()) seed(session)
diff --git a/packages/plan/plan-mode/tests/integration.spec.ts b/packages/plan/plan-mode/tests/integration.spec.ts
index ac82e45822..4b0eb97f01 100644
--- a/packages/plan/plan-mode/tests/integration.spec.ts
+++ b/packages/plan/plan-mode/tests/integration.spec.ts
@@ -105,6 +105,7 @@ describe('plan mode through the agent loop', () => {
     agent.followup(createUserMessage({ content: [{ type: 'text', text: 'explore the repo' }], source: { kind: 'user' } }))
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const log = agent.session.snapshotEvents()
     const planMode = findEvent(log, 'plan/mode')
     const header = findEvent(log, 'request/header')
@@ -138,8 +139,10 @@ describe('plan mode through the agent loop', () => {
     agent.followup(createUserMessage({ content: [{ type: 'text', text: 'hello' }], source: { kind: 'user' } }))
     await waitForIdle(ctx, agent)
     expect(planActive(ctx, agent)).toBe(false)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const first = findEvent(agent.session.snapshotEvents(), 'request/header')
     expect(first.data.header.tools?.map(tool => tool.name)).toEqual(['exit_plan_mode', 'read', 'write'])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const firstSystem = findEvent(agent.session.snapshotEvents(), 'system/message')
     expect(systemText(agent)).not.toContain(PLAN_CONFIG.section)
 
@@ -147,6 +150,7 @@ describe('plan mode through the agent loop', () => {
     agent.followup(createUserMessage({ content: [{ type: 'text', text: 'now plan' }], source: { kind: 'user' } }))
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const log = agent.session.snapshotEvents()
     expect(planActive(ctx, agent)).toBe(true)
     const notices = log.filter(event => event.type === 'user/message' && event.data.source.kind === 'plugin')
@@ -196,6 +200,7 @@ describe('plan mode through the agent loop', () => {
     expect(requestSystem(adapter.requests[1])).not.toContain(PLAN_CONFIG.section)
     expect(adapter.requests[1]?.tools).toEqual(adapter.requests[0]?.tools)
     expect(ctx.planMode.get(agent)).toEqual({ active: false, pending: true })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'plan/mode')).toBe(false)
 
     const nextIdle = waitForIdle(ctx, agent)
@@ -205,6 +210,7 @@ describe('plan mode through the agent loop', () => {
     expect(adapter.requests).toHaveLength(3)
     expect(requestSystem(adapter.requests[2])).toContain(PLAN_CONFIG.section)
     expect(adapter.requests[2]?.tools).toEqual(adapter.requests[0]?.tools)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const log = agent.session.snapshotEvents()
     const planMode = findEvent(log, 'plan/mode')
     const firstEnd = log.find(event => event.type === 'step/end'
diff --git a/packages/plan/plan-mode/tests/plan-mode.spec.ts b/packages/plan/plan-mode/tests/plan-mode.spec.ts
index 2e3bd89949..9bd0e7c87c 100644
--- a/packages/plan/plan-mode/tests/plan-mode.spec.ts
+++ b/packages/plan/plan-mode/tests/plan-mode.spec.ts
@@ -142,6 +142,7 @@ function header(session: Session): void {
 }
 
 function noticeTexts(session: Session): string[] {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return session.snapshotEvents()
     .filter(event => event.type === 'user/message' && event.data.source.kind === 'plugin')
     .map(event => (event.data as { content: { type: string; text?: string }[] }).content.map(block => block.text ?? '').join(''))
@@ -205,10 +206,12 @@ describe('resolveConfig', () => {
 describe('foldPlanMode', () => {
   it('folds an empty log to inactive and takes the last plan/mode otherwise', () => {
     const session = Session.create(SessionId('fold'))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(session.snapshotEvents())).toBe(false)
     session.append('plan/mode', { active: true })
     session.append('plan/mode', { active: false })
     session.append('plan/mode', { active: true })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(session.snapshotEvents())).toBe(true)
   })
 
@@ -216,7 +219,9 @@ describe('foldPlanMode', () => {
     const session = Session.create(SessionId('fold-prefix'))
     session.append('plan/mode', { active: true })
     session.append('plan/mode', { active: false })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(session.snapshotEvents(), 1)).toBe(true)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(session.snapshotEvents(), 0)).toBe(false)
   })
 })
@@ -281,13 +286,16 @@ describe('ctx.planMode: get/set', () => {
     const ctx = await setup()
     const agent = await agentWithSession(ctx, 'agent-idle')
     expect(ctx.planMode.set(agent, true)).toBe('committed')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
     expect(ctx.planMode.get(agent)).toEqual({ active: true })
     // Immediately reversible, still without a boundary.
     expect(ctx.planMode.set(agent, false)).toBe('committed')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(false)
     // A later boundary finds nothing pending — no double append.
     await boundary(ctx, agent, 'step-start')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'plan/mode')).toHaveLength(2)
   })
 
@@ -299,6 +307,7 @@ describe('ctx.planMode: get/set', () => {
     closeTurn(agent.session)
     // Back to the logged state: the pending intent clears, nothing lands.
     expect(ctx.planMode.set(agent, false)).toBe('cancelled')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'plan/mode')).toBe(false)
     expect(ctx.planMode.get(agent)).toEqual({ active: false })
   })
@@ -319,6 +328,7 @@ describe('the boundary flush', () => {
     const service = ctx.planMode as unknown as { onBoundary(session: Session): void }
 
     expect(() => { service.onBoundary(agent.session) }).not.toThrow()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'plan/mode')).toBe(false)
   })
 
@@ -328,6 +338,7 @@ describe('the boundary flush', () => {
     openTurn(agent.session)
     ctx.planMode.set(agent, true)
     await boundary(ctx, agent, 'pre-step')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
     expect(ctx.planMode.get(agent)).toEqual({ active: true })
   })
@@ -343,6 +354,7 @@ describe('the boundary flush', () => {
     ctx.planMode.set(agent, true)
     await fiber.dispose()
     await boundary(ctx, agent, 'pre-step')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'plan/mode')).toBe(false)
   })
 
@@ -351,6 +363,7 @@ describe('the boundary flush', () => {
     const agent = await agentWithSession(ctx)
     ctx.planMode.set(agent, true)
     await boundary(ctx, agent, 'step-start')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
   })
 
@@ -362,6 +375,7 @@ describe('the boundary flush', () => {
     ctx.planMode.set(agent, true)
     ctx.planMode.set(agent, false)
     await boundary(ctx, agent, 'pre-step')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'plan/mode')).toBe(false)
     expect(noticeTexts(agent.session)).toEqual([])
   })
@@ -403,6 +417,7 @@ describe('the boundary flush', () => {
     agent.session.append('plan/mode', { active: false })
     ctx.planMode.set(agent, true)
     await boundary(ctx, agent, 'step-start')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
     expect(noticeTexts(agent.session)).toEqual([])
   })
@@ -430,6 +445,7 @@ describe('the boundary flush', () => {
     expect(ctx.planMode.get(agent)).toEqual({ active: false, pending: true })
     agent.session.append = original
     await boundary(ctx, agent, 'step-start')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
     expect(ctx.planMode.get(agent).pending).toBeUndefined()
   })
@@ -674,6 +690,7 @@ describe('/plan', () => {
     expect(enteringSteer).not.toHaveBeenCalled()
     await boundary(ctx, entering, 'step-start')
     expect(ctx.planMode.get(entering)).toEqual({ active: false })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(entering.session.snapshotEvents().some(event => event.type === 'plan/mode')).toBe(false)
 
     const active = await agentWithSession(ctx, 'active-plan-command', { active: true })
@@ -698,9 +715,11 @@ describe('/plan', () => {
     const agent = await agentWithSession(ctx, 'idle-plan-command')
     expect((await ctx.commands.execute(agent, '/plan', [], signal))?.result)
       .toEqual({ kind: 'success', text: 'Plan mode on. Use /plan off to leave.' })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
     expect((await ctx.commands.execute(agent, '/plan off', [], signal))?.result)
       .toEqual({ kind: 'success', text: 'Plan mode off.' })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(false)
   })
 
@@ -864,6 +883,7 @@ describe('exit_plan_mode', () => {
       expect(result.content).toEqual([{ type: 'text', text: 'Error: exit_plan_mode requires a non-empty markdown plan starting with a # heading' }])
     }
     expect(asked).toHaveLength(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
   })
 
@@ -873,6 +893,7 @@ describe('exit_plan_mode', () => {
     const result = await callExit(ctx, agent)
     expect(result.isError).toBe(true)
     expect(result.content).toEqual([{ type: 'text', text: 'Error: no user-questions channel is available to review the plan; ask the user to switch the session mode instead' }])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
   })
 
@@ -881,6 +902,7 @@ describe('exit_plan_mode', () => {
     const result = await callExit(ctx, agent)
     expect(result.isError).toBe(true)
     expect(result.content).toEqual([{ type: 'text', text: 'Error: no user-questions answerer accepted the request' }])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
   })
 
@@ -901,6 +923,7 @@ describe('exit_plan_mode', () => {
       text: "Error: human interaction is unavailable while the calling agent is owned by another live agent; include the unresolved question or decision in the child agent's final result",
     }])
     expect(ask).not.toHaveBeenCalled()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(child.session.snapshotEvents())).toBe(true)
   })
 
@@ -913,9 +936,11 @@ describe('exit_plan_mode', () => {
     expect(result.content).toEqual([{ type: 'text', text: 'Plan approved — plan mode exited; carry out the plan starting with your next step.' }])
     // Boundary-applied, not a direct append: the fold stays plan until the
     // step's end, so the plan policy covers any remaining call of the SAME batch.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
     expect(ctx.planMode.get(agent)).toEqual({ active: true, pending: false })
     await boundary(ctx, agent, 'step-start')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(false)
     expect(asked).toHaveLength(1)
     expect(asked[0]?.agent).toBe(agent)
@@ -966,6 +991,7 @@ describe('exit_plan_mode', () => {
       question: 'Approve this plan and leave plan mode?',
       detail: plan,
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().find(event => event.type === 'tool/ptc-dispatch')?.data).toMatchObject({
       name: EXIT_PLAN_MODE,
       arguments: { plan },
@@ -981,11 +1007,13 @@ describe('exit_plan_mode', () => {
     // Calls of the SAME assistant response were requested under the existing
     // plan-shaped header. Pending state shapes only the proposed next
     // assembly; the accepted boundary then commits the matching durable fold.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
     const assembly = await ctx.systemPrompt.assemble({ agent })
     expect(assembly.tools.some(tool => tool.name === EXIT_PLAN_MODE)).toBe(true)
     expect(assembly.sections.find(section => section.name === 'plan:policy')?.text).toBe('')
     await boundary(ctx, agent, 'step-start')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(false)
     const afterExit = await ctx.systemPrompt.assemble({ agent })
     expect(afterExit.tools).toEqual(assembly.tools)
@@ -997,6 +1025,7 @@ describe('exit_plan_mode', () => {
     header(agent.session)
     await callExit(ctx, agent)
     await boundary(ctx, agent, 'step-start')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(false)
     expect(noticeTexts(agent.session)).toEqual([])
   })
@@ -1006,6 +1035,7 @@ describe('exit_plan_mode', () => {
     const result = await callExit(ctx, agent)
     expect(result.isError).toBe(true)
     expect(result.content).toEqual([{ type: 'text', text: 'Error: The user chose to keep planning; their feedback: consider the resume path' }])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
   })
 
@@ -1021,6 +1051,7 @@ describe('exit_plan_mode', () => {
     const result = await callExit(ctx, agent)
     expect(result.isError).toBe(true)
     expect(result.content).toEqual([{ type: 'text', text: 'Error: The user chose to keep planning; their feedback: add tests first' }])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
   })
 
@@ -1029,6 +1060,7 @@ describe('exit_plan_mode', () => {
     const result = await callExit(ctx, agent)
     expect(result.isError).toBe(true)
     expect(result.content).toEqual([{ type: 'text', text: 'Error: The user chose to keep planning; revise the plan and present it again.' }])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
   })
 
@@ -1037,6 +1069,7 @@ describe('exit_plan_mode', () => {
     const result = await callExit(ctx, agent)
     expect(result.isError).toBe(true)
     expect(result.content).toEqual([{ type: 'text', text: 'Error: The user chose to keep planning; their feedback: change the tests' }])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
   })
 
@@ -1051,6 +1084,7 @@ describe('exit_plan_mode', () => {
     const result = await callExit(ctx, agent)
     expect(result.isError).toBe(true)
     expect(result.content).toEqual([{ type: 'text', text: 'Error: The user chose to keep planning; revise the plan and present it again.' }])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
   })
 
@@ -1083,6 +1117,7 @@ describe('exit_plan_mode', () => {
     const result = await callExit(ctx, agent)
     expect(result.isError).toBe(true)
     expect(result.content).toEqual([{ type: 'text', text: 'Error: The user dismissed the plan review to speak instead; stay in plan mode, stop here, and wait for their message.' }])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
   })
 
@@ -1095,6 +1130,7 @@ describe('exit_plan_mode', () => {
     const result = await callExit(ctx, agent)
     expect(result.isError).toBe(true)
     expect(result.content).toEqual([{ type: 'text', text: 'Error: ask_user_question was aborted before the user answered' }])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
   })
 
@@ -1135,6 +1171,7 @@ describe('exit_plan_mode', () => {
     const result = await pending
     expect(result.isError).toBe(true)
     expect(result.content).toEqual([{ type: 'text', text: 'Error: the plan-mode service was reloaded while the plan was under review; present the plan again' }])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
   })
 
@@ -1144,6 +1181,7 @@ describe('exit_plan_mode', () => {
     const result = await callExit(ctx, agent)
     expect(result.isError).toBe(true)
     expect(result.content).toEqual([{ type: 'text', text: 'Error: review aborted' }])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
   })
 
@@ -1195,6 +1233,7 @@ describe('HMR disposal', () => {
     expect(ctx.tools.get(EXIT_PLAN_MODE)).toBeUndefined()
     expect((await ctx.systemPrompt.assemble()).sections.map(section => section.name)).not.toContain('plan:policy')
     await boundary(ctx, agent, 'step-start')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'plan/mode')).toBe(false)
   })
 })
diff --git a/packages/plan/plan-mode/tests/projection.spec.ts b/packages/plan/plan-mode/tests/projection.spec.ts
index f4d46d5b62..1e15df94b4 100644
--- a/packages/plan/plan-mode/tests/projection.spec.ts
+++ b/packages/plan/plan-mode/tests/projection.spec.ts
@@ -155,6 +155,7 @@ describe('plan projection unit', () => {
     // A second registry over the same log (the cold-read shape): no service
     // memory involved, the fold alone answers {active:false, pending:true}.
     const cold = await harness(true)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     for (const event of bench.session.snapshotEvents()) {
       if (event.type === 'command/run' || event.type === 'command/done' || event.type === 'plan/mode') {
         cold.session.append(event.type, event.data)
diff --git a/packages/preset/agent-presets/tests/remote.spec.ts b/packages/preset/agent-presets/tests/remote.spec.ts
index b1a685d019..f02651d2f5 100644
--- a/packages/preset/agent-presets/tests/remote.spec.ts
+++ b/packages/preset/agent-presets/tests/remote.spec.ts
@@ -98,6 +98,7 @@ async function agentOn(ctx: Context, id: string, presetId?: string): Promise<Age
 
 /** The recorded preset a restart replays, which is what a switch must move. */
 const recordedPreset = (agent: Agent): unknown =>
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   agent.session.snapshotEvents().findLast(event => event.type === 'agent-preset/selected')?.data
 
 describe('the roster a client reads', () => {
diff --git a/packages/sandbox/sandbox-policy/src/invariant.ts b/packages/sandbox/sandbox-policy/src/invariant.ts
index 6f3d5ca654..62ae2446ae 100644
--- a/packages/sandbox/sandbox-policy/src/invariant.ts
+++ b/packages/sandbox/sandbox-policy/src/invariant.ts
@@ -23,6 +23,7 @@ function validateEvent(event: SessionEvent, fail: InvariantFailure): void {
 /** Install validation for loaded and newly appended sandbox modes. */
 const install: InvariantInstaller = Object.assign((ctx: Context, fail: InvariantFailure) => {
   for (const session of ctx.sessions.list()) {
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     for (const event of session.snapshotEvents()) validateEvent(event, fail)
   }
   ctx.on('internal/dispatch', (_mode, eventName, args) => {
diff --git a/packages/sandbox/sandbox-policy/tests/policy.spec.ts b/packages/sandbox/sandbox-policy/tests/policy.spec.ts
index 608abeeade..543fbff319 100644
--- a/packages/sandbox/sandbox-policy/tests/policy.spec.ts
+++ b/packages/sandbox/sandbox-policy/tests/policy.spec.ts
@@ -207,6 +207,7 @@ describe('sandbox:policy request context', () => {
   it('reconstructs resumed policy from the session log and omits diagnostics without an agent', async () => {
     const active = session('sess-resume', '/projects/current')
     setSandboxMode(active, 'workspace-write')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const resumed = Session.create(active.id, active.snapshotEvents(), active.header)
     const ctx = await promptMounted({ mode: 'read-only' })
 
@@ -232,6 +233,7 @@ describe('the sandbox/mode session kit', () => {
   it('setSandboxMode appends exactly one sandbox/mode event per switch', () => {
     const session = Session.create(SessionId('sess-write'))
     setSandboxMode(session, 'danger-full-access')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const modeEvents = session.snapshotEvents().filter(e => e.type === 'sandbox/mode')
     expect(modeEvents).toHaveLength(1)
     expect(modeEvents[0]?.data).toEqual({ mode: 'danger-full-access' })
diff --git a/packages/schedule/schedule/src/index.ts b/packages/schedule/schedule/src/index.ts
index 9364fc53e0..7049246bdf 100644
--- a/packages/schedule/schedule/src/index.ts
+++ b/packages/schedule/schedule/src/index.ts
@@ -55,6 +55,7 @@ export function apply(ctx: Context): void {
       const cleanup: OwnerCleanup = agent.ctx.effect(() => {
         const disposeTools = registerScheduleTools(ctx, agent.ctx, agent, () => { runtime.requestDrive() })
         const stopStatus = agent.ctx.on('agent/status', ({ status }) => {
+          // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
           if (status === 'idle' && agent.session.snapshotEvents().some(event => event.type === 'schedule/change')) {
             runtime.requestDrive()
           }
diff --git a/packages/schedule/schedule/src/invariant.ts b/packages/schedule/schedule/src/invariant.ts
index 248e7df710..0d5a89f926 100644
--- a/packages/schedule/schedule/src/invariant.ts
+++ b/packages/schedule/schedule/src/invariant.ts
@@ -30,15 +30,18 @@ function validate(events: readonly SessionEvent[], fail: InvariantFailure): void
 /** Install replay and pre-append validation for the owned event stream. */
 const install: InvariantInstaller = Object.assign((ctx: Context, fail: InvariantFailure) => {
   for (const session of ctx.sessions.list()) {
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     validate(session.ownEvents(), fail)
   }
   ctx.on('session/created', (session) => {
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     validate(session.ownEvents(), fail)
   }, { global: true })
   ctx.on('internal/dispatch', (_mode, eventName, args) => {
     if (eventName !== 'session/event') return
     const [session, event] = args as [Session, SessionEvent]
     if (event.type !== 'schedule/change') return
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     validate([...session.ownEvents(), event], fail)
   }, { global: true })
 }, { inject: ['sessions'] })
diff --git a/packages/schedule/schedule/src/runtime.ts b/packages/schedule/schedule/src/runtime.ts
index 5b141f5728..1574574c3d 100644
--- a/packages/schedule/schedule/src/runtime.ts
+++ b/packages/schedule/schedule/src/runtime.ts
@@ -205,6 +205,7 @@ export class ScheduleRuntime {
   /** Fold the current exact runtime suffix and contain a corrupt durable stream. */
   private readFolded(): FoldedSchedules | undefined {
     try {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       return foldScheduleEvents(this.agent.session.ownEvents())
     } catch (error: unknown) {
       this.faulted = true
diff --git a/packages/schedule/schedule/src/tools.ts b/packages/schedule/schedule/src/tools.ts
index c4ac651634..83162ae2a9 100644
--- a/packages/schedule/schedule/src/tools.ts
+++ b/packages/schedule/schedule/src/tools.ts
@@ -221,6 +221,7 @@ function inputError(error: ScheduleInputError): ScheduleToolError {
 /** Fold only after a successful preflight, mapping corruption to a stable value. */
 function foldForTool(agent: Agent): ReturnType<typeof foldScheduleEvents> | ScheduleToolError {
   try {
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     return foldScheduleEvents(agent.session.ownEvents())
   } catch (error: unknown) {
     return error instanceof ScheduleLogError ? corruptLogError() : internalError()
diff --git a/packages/schedule/schedule/tests/invariant.spec.ts b/packages/schedule/schedule/tests/invariant.spec.ts
index f595bfa081..5600ea2635 100644
--- a/packages/schedule/schedule/tests/invariant.spec.ts
+++ b/packages/schedule/schedule/tests/invariant.spec.ts
@@ -53,6 +53,7 @@ describe('Schedule package invariant', () => {
     const session = ctx.sessions.create(SessionId('schedule-invariant'))
     session.append('turn/start', { turn: 1 })
     session.append('schedule/change', create('schedule-1'))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(2)
 
     expect(() => session.append('schedule/change', {
@@ -60,9 +61,11 @@ describe('Schedule package invariant', () => {
       operation: 'delete',
       id: ScheduleId('missing'),
     })).toThrow(InvariantError)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(2)
 
     session.append('schedule/change', { version: 1, operation: 'dispatch', id: ScheduleId('schedule-1') })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(3)
     await ctx.fiber.dispose()
   })
@@ -82,6 +85,7 @@ describe('Schedule package invariant', () => {
       id: ScheduleId('schedule-every'),
       acceptedAt: '2026-08-05T12:17:34.000Z',
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(2)
     await ctx.fiber.dispose()
   })
@@ -118,6 +122,7 @@ describe('Schedule package invariant', () => {
     })
     const fiber = await ctx.plugin(scheduleInvariant)
     child.append('schedule/change', create('child'))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.snapshotEvents().at(-1)?.data).toMatchObject({ operation: 'create' })
     await fiber.dispose()
     await ctx.fiber.dispose()
diff --git a/packages/schedule/schedule/tests/jsonl-restart.spec.ts b/packages/schedule/schedule/tests/jsonl-restart.spec.ts
index baf02e4702..3a86c940d6 100644
--- a/packages/schedule/schedule/tests/jsonl-restart.spec.ts
+++ b/packages/schedule/schedule/tests/jsonl-restart.spec.ts
@@ -107,6 +107,7 @@ describe('Schedule production JSONL restart', () => {
     )
     pending.append('schedule/change', { version: 1, operation: 'create', schedule: pendingRecord })
     const seed = await first.sessionPersistence.create(pending.header)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     await seed.append(pending.snapshotEvents())
     await seed.close()
     await disposeContext(first)
@@ -143,6 +144,7 @@ describe('Schedule production JSONL restart', () => {
     await replayed.sessions.flush(replayHandle.agent.session)
 
     expect(replayAdapter.requests).toEqual([])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(replayHandle.agent.session.snapshotEvents().filter(event =>
       event.type === 'schedule/change' && event.data.operation === 'dispatch')).toHaveLength(1)
     const replayedStored = await readStored(replayed, sessionId)
diff --git a/packages/schedule/schedule/tests/runtime.spec.ts b/packages/schedule/schedule/tests/runtime.spec.ts
index f216babd7d..a1daefbef8 100644
--- a/packages/schedule/schedule/tests/runtime.spec.ts
+++ b/packages/schedule/schedule/tests/runtime.spec.ts
@@ -173,6 +173,7 @@ describe('Schedule timer and admission runtime', () => {
     await settle()
     expect(test.followed).toHaveLength(1)
     expect(test.controls.releaseCount).toBe(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().find(event =>
       event.type === 'schedule/change' && event.data.operation === 'dispatch')).toBeDefined()
     await runtime.dispose()
@@ -223,6 +224,7 @@ describe('Schedule timer and admission runtime', () => {
 
     expect(test.followed).toEqual([])
     expect(test.controls.whenIdleCount).toBe(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().at(-1)?.data).toMatchObject({ operation: 'create' })
 
     runtime.requestDrive()
@@ -295,12 +297,14 @@ describe('Schedule timer and admission runtime', () => {
       ].join('\n'),
     }])
     expect(test.followed[0]?.source).toEqual({ kind: 'plugin', plugin: 'schedule' })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const dispatches = test.agent.session.snapshotEvents().filter(event =>
       event.type === 'schedule/change' && event.data.operation === 'dispatch')
     expect(dispatches.map(event => event.data)).toEqual([
       { version: 1, operation: 'dispatch', id: 'schedule-fast', acceptedAt: '2026-08-05T12:00:00.000Z' },
       { version: 1, operation: 'dispatch', id: 'schedule-slow', acceptedAt: '2026-08-05T12:00:00.000Z' },
     ])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldScheduleEvents(test.agent.session.snapshotEvents()).active).toEqual([
       expect.objectContaining({ id: 'schedule-fast', scheduledAt: '2026-08-05T12:05:00.000Z' }),
       expect.objectContaining({ id: 'schedule-slow', scheduledAt: '2026-08-05T12:09:00.000Z' }),
@@ -370,6 +374,7 @@ describe('Schedule timer and admission runtime', () => {
 
     expect(test.controls.releaseCount).toBe(1)
     expect(test.followed).toEqual([])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().at(-1)?.data).toMatchObject({ operation: 'delete' })
     runtime.requestDrive()
     await settle()
@@ -429,6 +434,7 @@ describe('Schedule runtime failure and teardown boundaries', () => {
     await settle()
 
     expect(test.controls.releaseCount).toBe(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().filter(event =>
       event.type === 'schedule/change' && event.data.operation === 'dispatch')).toEqual([])
     await runtime.dispose()
@@ -460,6 +466,7 @@ describe('Schedule runtime failure and teardown boundaries', () => {
 
     expect(test.followed).toHaveLength(1)
     expect(test.controls.releaseCount).toBe(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().filter(event =>
       event.type === 'schedule/change' && event.data.operation === 'dispatch')).toEqual([])
     runtime.requestDrive()
@@ -487,6 +494,7 @@ describe('Schedule runtime failure and teardown boundaries', () => {
 
     expect(test.followed).toHaveLength(1)
     expect(test.controls.releaseCount).toBe(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().filter(event => (
       event.type === 'schedule/change' && event.data.operation === 'dispatch'
     )).map(event => event.data)).toEqual([{
@@ -495,6 +503,7 @@ describe('Schedule runtime failure and teardown boundaries', () => {
       id: 'schedule-first',
       acceptedAt: '2026-08-05T12:00:00.000Z',
     }])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldScheduleEvents(test.agent.session.snapshotEvents()).active).toEqual([
       expect.objectContaining({ id: 'schedule-first', scheduledAt: '2026-08-05T12:05:00.000Z' }),
       expect.objectContaining({ id: 'schedule-second', scheduledAt: '2026-08-05T11:55:00.000Z' }),
@@ -545,6 +554,7 @@ describe('Schedule runtime failure and teardown boundaries', () => {
     await settle()
     expect(test.controls.flushCount).toBe(1)
     expect(test.followed).toEqual([])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().at(-1)?.data).toMatchObject({ operation: 'create' })
     await runtime.dispose()
 
@@ -607,6 +617,7 @@ describe('Schedule runtime failure and teardown boundaries', () => {
     }
     await settle()
     expect(test.followed).toEqual([])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().filter(event =>
       event.type === 'schedule/change' && event.data.operation === 'dispatch')).toEqual([])
   })
diff --git a/packages/schedule/schedule/tests/tools.spec.ts b/packages/schedule/schedule/tests/tools.spec.ts
index 35e4dc1724..467bc4f288 100644
--- a/packages/schedule/schedule/tests/tools.spec.ts
+++ b/packages/schedule/schedule/tests/tools.spec.ts
@@ -160,6 +160,7 @@ describe('Schedule tool protocol', () => {
     expect(value(await execute(test, 'schedule_create', { prompt: 'x', every_seconds: 299 })))
       .toEqual({ code: 'frequency_too_high', message: 'every_seconds must be at least 300.' })
     expect(test.flushes.count).toBe(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().filter(event => event.type === 'schedule/change')).toEqual([])
   })
 
@@ -233,6 +234,7 @@ describe('Schedule tool protocol', () => {
       expect.objectContaining({ id: 'schedule-1', kind: 'at' }),
       expect.objectContaining({ id: 'schedule-2', kind: 'at' }),
     ])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const changes = test.agent.session.snapshotEvents()
       .filter(event => event.type === 'schedule/change' && event.data.operation === 'create')
     expect(changes.map((change) => {
@@ -301,6 +303,7 @@ describe('Schedule tool protocol', () => {
       message: 'The scheduled time must be strictly in the future.',
     })
     expect(test.flushes.count).toBe(3)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().filter(event => event.type === 'schedule/change')).toEqual([])
   })
 
@@ -313,6 +316,7 @@ describe('Schedule tool protocol', () => {
       message: 'The scheduled time must be representable as a four-digit-year RFC 3339 UTC instant.',
     })
     expect(test.flushes.count).toBe(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().filter(event => event.type === 'schedule/change')).toEqual([])
 
     const internal = await harness()
@@ -439,6 +443,7 @@ describe('Schedule persistence failure boundaries', () => {
       error: { info: { name: 'AbortError', code: 'ABORTED' } },
     })
     expect(test.flushes.count).toBe(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().filter(event => event.type === 'schedule/change')).toEqual([])
   })
 
@@ -463,6 +468,7 @@ describe('Schedule persistence failure boundaries', () => {
       error: { info: { name: 'AbortError', code: 'ABORTED' } },
     })
     expect(test.flushes.count).toBe(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().filter(event => event.type === 'schedule/change')).toEqual([])
   })
 
@@ -486,6 +492,7 @@ describe('Schedule persistence failure boundaries', () => {
       error: { info: { name: 'AbortError', code: 'ABORTED' } },
     })
     expect(test.flushes.count).toBe(3)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().filter(event => event.type === 'schedule/change'))
       .toHaveLength(1)
     expect(value(await execute(test, 'schedule_list', {})))
@@ -497,6 +504,7 @@ describe('Schedule persistence failure boundaries', () => {
     createTest.flushes.outcomes.push('reject')
     expect(value(await execute(createTest, 'schedule_create', { prompt: 'later', after_seconds: 1 })))
       .toMatchObject({ code: 'persistence_uncertain', operation: 'create' })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(createTest.agent.session.snapshotEvents().filter(event => event.type === 'schedule/change')).toEqual([])
 
     const deleteTest = await harness()
@@ -504,6 +512,7 @@ describe('Schedule persistence failure boundaries', () => {
     deleteTest.flushes.outcomes.push('reject')
     expect(value(await execute(deleteTest, 'schedule_delete', { id: 'schedule-1' })))
       .toMatchObject({ code: 'persistence_uncertain', operation: 'delete', id: 'schedule-1' })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(deleteTest.agent.session.snapshotEvents().at(-1)?.data).toMatchObject({ operation: 'create' })
   })
 
diff --git a/packages/session-query/session-log-export/tests/loader-composition.host.spec.ts b/packages/session-query/session-log-export/tests/loader-composition.host.spec.ts
index 1d61e0ef3a..afb9125448 100644
--- a/packages/session-query/session-log-export/tests/loader-composition.host.spec.ts
+++ b/packages/session-query/session-log-export/tests/loader-composition.host.spec.ts
@@ -65,6 +65,7 @@ describe('session-log-download real Loader composition', () => {
     })
     const execution = await context.commands.execute(agent, '/export', [], new AbortController().signal)
     expect(execution?.result).toEqual({ kind: 'success', text: 'Session log download requested.' })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().map(event => event.type)).toEqual(['command/run', 'command/done'])
     expect(session.deriveMessages()).toEqual([])
   })
diff --git a/packages/session-query/session-query-sqlite/src/index.ts b/packages/session-query/session-query-sqlite/src/index.ts
index 0fd390ee6a..e0b24b3c39 100644
--- a/packages/session-query/session-query-sqlite/src/index.ts
+++ b/packages/session-query/session-query-sqlite/src/index.ts
@@ -871,6 +871,7 @@ function selectedDocumentsParams(query: string, persistenceVisible: boolean): Ar
 }
 
 function observeLive(session: Session): ObservedSession {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return observeSession(session.header, session.inheritedEventCount, session.snapshotEvents())
 }
 
diff --git a/packages/session-query/session-query/src/corpus.ts b/packages/session-query/session-query/src/corpus.ts
index a6e44c85ad..cd01ca8234 100644
--- a/packages/session-query/session-query/src/corpus.ts
+++ b/packages/session-query/session-query/src/corpus.ts
@@ -243,6 +243,7 @@ function projectSource<Value>(
 }
 
 function sourceLive(session: Session): LogicalSessionSource {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return { header: session.header, events: session.snapshotEvents() }
 }
 
@@ -298,6 +299,7 @@ function snapshotLive(session: Session): LogicalSession {
   return {
     header: structuredClone(session.header),
     inheritedEventCount: session.inheritedEventCount,
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     events: session.snapshotEvents().map(event => structuredClone(event)),
   }
 }
diff --git a/packages/session-query/session-query/src/observation.ts b/packages/session-query/session-query/src/observation.ts
index 7ef86cebd4..8c08108775 100644
--- a/packages/session-query/session-query/src/observation.ts
+++ b/packages/session-query/session-query/src/observation.ts
@@ -289,6 +289,7 @@ export class SessionObservationReader {
         header: session.header,
         inheritedEventCount: session.inheritedEventCount,
         get events() {
+          // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
           materialized ??= session.snapshotEvents(SessionLogOffset(0), seq)
           return materialized
         },
diff --git a/packages/session-query/session-query/tests/session-query.spec.ts b/packages/session-query/session-query/tests/session-query.spec.ts
index ea89275ef3..b1cfa90c28 100644
--- a/packages/session-query/session-query/tests/session-query.spec.ts
+++ b/packages/session-query/session-query/tests/session-query.spec.ts
@@ -1034,6 +1034,7 @@ describe('session-query exact reads', () => {
     }).toThrow()
     Object.assign(snapshot.session, { cwd: '/mutated' })
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const logged = session.eventAt(SessionSeq(4))
     expect(logged?.type === 'user/message' && logged.data.content).toHaveLength(1)
     expect(session.header.cwd).toBe('/work')
@@ -1071,6 +1072,7 @@ describe('session-query exact reads', () => {
       (result.events[0]!.data as { content: unknown[] }).content = []
     }).toThrow()
     expect(session.header.createdAt).not.toBe(-1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const logged = session.eventAt(SessionSeq(1))
     expect(logged?.type === 'user/message' && logged.data.content).toHaveLength(1)
 
diff --git a/packages/session-query/tool-session-query/tests/tool-session-query.spec.ts b/packages/session-query/tool-session-query/tests/tool-session-query.spec.ts
index c127c2a127..0ca1de7052 100644
--- a/packages/session-query/tool-session-query/tests/tool-session-query.spec.ts
+++ b/packages/session-query/tool-session-query/tests/tool-session-query.spec.ts
@@ -2006,6 +2006,7 @@ describe('trace and exact read rendering', () => {
     expect(text(result)).toContain('Replacement chain: 1')
     expect(text(result)).toContain('Events cited directly as sources: none')
     expect(text(result)).toContain('Direct derived events: 1')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(text(result)).toContain(new Date(session.snapshotEvents()[0]?.time ?? 0).toISOString())
   })
 
diff --git a/packages/session/session-log-deepseek/src/index.ts b/packages/session/session-log-deepseek/src/index.ts
index 4c35021c8d..1147927bd5 100644
--- a/packages/session/session-log-deepseek/src/index.ts
+++ b/packages/session/session-log-deepseek/src/index.ts
@@ -120,6 +120,7 @@ export function acceptedThrough(session: Session): SessionSeqCursor {
   const length = session.seq
   const start = previous?.scannedEvents ?? SessionLogOffset(0)
   for (let index = start; index < length; index++) {
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const event = session.eventAt(SessionSeq(index))
     if (event === undefined) {
       throw new Error(`session-log-deepseek: missing event ${String(index)} below captured length ${String(length)}`)
@@ -164,9 +165,11 @@ export function apply(ctx: Context, config: Config): void {
       if (session === undefined) return undefined
 
       const afterSeq = acceptedThrough(session)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const snapshot = session.snapshotEvents()
       const throughSeq = snapshot.at(-1)?.seq
       if (throughSeq === undefined) return undefined
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const suffix = session.snapshotEvents(SessionLogOffset(afterSeq + 1))
       const value: DeepSeekSessionLogExtension = {
         version: 1,
diff --git a/packages/session/session-log-deepseek/src/invariant.ts b/packages/session/session-log-deepseek/src/invariant.ts
index c855666ded..f01d5aef9e 100644
--- a/packages/session/session-log-deepseek/src/invariant.ts
+++ b/packages/session/session-log-deepseek/src/invariant.ts
@@ -44,6 +44,7 @@ function validateDeliveryAccepted(session: Session, event: SessionEvent<'session
 
 /** Validate acceptance watermarks already present in one Session. */
 function validateSession(session: Session, fail: InvariantFailure): void {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   for (const event of session.snapshotEvents()) {
     if (event.type === 'session-log-deepseek/delivery-accepted') validateDeliveryAccepted(session, event, fail)
   }
diff --git a/packages/session/session-log-deepseek/tests/feedback-composition.spec.ts b/packages/session/session-log-deepseek/tests/feedback-composition.spec.ts
index 76702f4c38..31eb4d215f 100644
--- a/packages/session/session-log-deepseek/tests/feedback-composition.spec.ts
+++ b/packages/session/session-log-deepseek/tests/feedback-composition.spec.ts
@@ -84,6 +84,7 @@ it('uploads freeform feedback and message put/edit/delete through the unchanged
     recordFeedback(session, '  The session needs a clearer explanation.  ')
     const created = await ctx.messageFeedback.put({ sessionId: session.id, messageId: assistant.id, rating: 'negative', note: 'Explain the result.', ifVersion: null })
     if (!created.ok) throw new Error(created.error.code)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const initialPrefix = session.snapshotEvents()
     const request = async () => {
       const chunks = []
@@ -132,6 +133,7 @@ it('uploads freeform feedback and message put/edit/delete through the unchanged
       ] })
     }
     await ctx.sessions.flush(session)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect((await handle.read()).events).toEqual(session.snapshotEvents())
   } finally {
     await handle.close()
diff --git a/packages/session/session-log-deepseek/tests/upload.spec.ts b/packages/session/session-log-deepseek/tests/upload.spec.ts
index e92df32921..dc4eb3f1c3 100644
--- a/packages/session/session-log-deepseek/tests/upload.spec.ts
+++ b/packages/session/session-log-deepseek/tests/upload.spec.ts
@@ -117,6 +117,7 @@ describe('incremental DeepSeek session-log upload', () => {
       turn: 1, step: 3, message: createSystemMessage('new head', 'fixture'),
     }, { surfaceOp: { op: 'replace', startSeq: head.seq, endSeq: head.seq }, sourceEventSeqs: [head.seq] })
     const prepared = await ctx.deepseekLlmApiExtensions.prepare({ body: body(), signal: SIGNAL, sessionId: session.id })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(prepared.fields.dsh_session_log?.events).toEqual(session.snapshotEvents())
   })
 
@@ -176,6 +177,7 @@ describe('incremental DeepSeek session-log upload', () => {
     expect(firstPayload?.events).toHaveLength(2)
     await first.accept()
     expect(SessionLogDeepSeek.acceptedThrough(session)).toBe(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().at(-1)?.data).toEqual({
       sessionId: session.id,
       throughSeq: 1,
@@ -197,6 +199,7 @@ describe('incremental DeepSeek session-log upload', () => {
     first.session.append('turn/start', { turn: 1 })
     const prepared = await first.ctx.deepseekLlmApiExtensions.prepare({ body: body(), signal: SIGNAL, sessionId: first.session.id })
     await prepared.accept()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const seed = first.session.snapshotEvents()
 
     const resumed = await harness('parent', seed)
@@ -361,6 +364,7 @@ describe('incremental DeepSeek session-log upload', () => {
     const { ctx, session } = await harness('direct-events')
     session.append('turn/start', { turn: 1 })
     const prepared = await ctx.deepseekLlmApiExtensions.prepare({ body: {}, signal: SIGNAL, sessionId: session.id })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(prepared.fields.dsh_session_log?.events).toEqual(session.snapshotEvents())
   })
 
diff --git a/packages/session/session-persistence-jsonl/tests/multi-edge-publication.spec.ts b/packages/session/session-persistence-jsonl/tests/multi-edge-publication.spec.ts
index 9be35ec1bf..814da947a6 100644
--- a/packages/session/session-persistence-jsonl/tests/multi-edge-publication.spec.ts
+++ b/packages/session/session-persistence-jsonl/tests/multi-edge-publication.spec.ts
@@ -176,6 +176,7 @@ function assertMigrated(result: Awaited<ReturnType<typeof readSession>>) {
   expect(session.firstLiveSeq).toBe(23)
   expect(session.isOwnSeq(SessionSeq(8))).toBe(false)
   expect(session.isOwnSeq(SessionSeq(9))).toBe(true)
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   expect(session.ownEvents()).toEqual([
     ...events.slice(9),
     expect.objectContaining({ type: 'session/end-seed', seq: 23, data: {} }),
diff --git a/packages/session/session-persistence-jsonl/tests/v2-system-migration.spec.ts b/packages/session/session-persistence-jsonl/tests/v2-system-migration.spec.ts
index b8a7fad132..3c40b96b20 100644
--- a/packages/session/session-persistence-jsonl/tests/v2-system-migration.spec.ts
+++ b/packages/session/session-persistence-jsonl/tests/v2-system-migration.spec.ts
@@ -131,6 +131,7 @@ describe('V2 system prompts through current Session and JSONL persistence', () =
       const session = await restore(reader)
       expect(messages(session)).toEqual([human])
       expect(session.surface.nodes).toEqual([8, 3])
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(session.eventAt(SessionSeq(8))?.type).toBe('system/message')
     } finally {
       await reader.close()
@@ -207,6 +208,7 @@ describe('V2 system prompts through current Session and JSONL persistence', () =
       expect(session.firstLiveSeq).toBe(15)
       expect(session.surface.nodes).toEqual([4, 8])
       expect(messages(session)).toEqual([prompt('seed prompt'), { role: 'user', content: [{ type: 'text', text: 'summary' }] }])
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(session.ownEvents()).toEqual([prepared[14]])
     } finally {
       await reader.close()
@@ -227,7 +229,9 @@ describe('V2 system prompts through current Session and JSONL persistence', () =
       }, { surfaceOp: { op: 'replace', startSeq: SessionSeq(4), endSeq: SessionSeq(4) }, sourceEventSeqs: [SessionSeq(4)] })
       session.append('step/end', { turn: 2, step: 1 })
       session.append('turn/end', { turn: 2, reason: { kind: 'completed' } })
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expected = session.snapshotEvents()
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       await writer.append(session.snapshotEvents(session.firstLiveSeq))
       await writer.flush()
     } finally {
@@ -286,6 +290,7 @@ describe('V2 system prompts through current Session and JSONL persistence', () =
       }, { surfaceOp: 'append' })
       session.append('step/end', { turn: 1, step: 1 })
       session.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       await writer.append(session.snapshotEvents())
       await writer.flush()
     } finally {
@@ -294,6 +299,7 @@ describe('V2 system prompts through current Session and JSONL persistence', () =
     const reopened = await mount()
     const reader = await reopened.sessionPersistence.open(id, 'read')
     try {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect((await reader.read()).events).toEqual(session.snapshotEvents())
       const restored = await restore(reader)
       expect(restored.surface.nodes).toEqual([2, 3, 4])
diff --git a/packages/session/session-projection/src/index.ts b/packages/session/session-projection/src/index.ts
index d29c5bb021..6d28631ddc 100644
--- a/packages/session/session-projection/src/index.ts
+++ b/packages/session/session-projection/src/index.ts
@@ -619,6 +619,7 @@ export class SessionProjectionRegistry extends Service {
         registration.def,
         session.header,
         session.inheritedEventCount,
+        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         session.snapshotEvents(),
       )
       registration.cells.set(session, cell)
@@ -637,6 +638,7 @@ export class SessionProjectionRegistry extends Service {
   ): void {
     if (cell.observedSeq >= throughSeq) return
     for (let seq = cell.observedSeq + 1; seq <= throughSeq; seq++) {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const event = session.eventAt(SessionSeq(seq))
       if (event === undefined || event.seq !== seq) {
         throw new Error(`session projection ${JSON.stringify(def.key)} cannot advance across missing seq ${String(seq)}`)
@@ -663,6 +665,7 @@ export class SessionProjectionRegistry extends Service {
           registration.def,
           session.header,
           session.inheritedEventCount,
+          // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
           session.snapshotEvents(SessionLogOffset(0), SessionLogOffset(event.seq)),
         )
         registration.cells.set(session, cell)
diff --git a/packages/session/session-telemetry-otel/src/index.ts b/packages/session/session-telemetry-otel/src/index.ts
index 43c93fb8ec..0722845a3b 100644
--- a/packages/session/session-telemetry-otel/src/index.ts
+++ b/packages/session/session-telemetry-otel/src/index.ts
@@ -246,6 +246,7 @@ export class OpenTelemetrySessionBackend extends SessionTelemetryBackend {
     ctx.on('session/event', (session, event) => {
       if (!isFeedback(session, event)) return
       // Only the canonical appended event authorizes this exact prefix.
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       if (session.eventAt(event.seq) !== event) {
         ctx.logger.warn(NON_CANONICAL_EVENT_WARNING)
         return
diff --git a/packages/session/session-telemetry-otel/tests/otel.spec.ts b/packages/session/session-telemetry-otel/tests/otel.spec.ts
index b8919024bd..35c2b89e11 100644
--- a/packages/session/session-telemetry-otel/tests/otel.spec.ts
+++ b/packages/session/session-telemetry-otel/tests/otel.spec.ts
@@ -175,6 +175,7 @@ describe('OpenTelemetrySessionBackend wire', () => {
     const start = ledger.find(r => r.record.attributes?.some(a => a.key === 'event.type' && a.value.stringValue === 'turn/start'))
     expect(start).toBeDefined()
     expect(start?.record.severityNumber).toBe(9)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(BigInt(start!.record.timeUnixNano)).toBe(BigInt(session.snapshotEvents().find(event => event.type === 'turn/start')!.time) * 1_000_000n)
     expect(start?.record.attributes).toContainEqual({
       key: 'session.format_version',
@@ -240,6 +241,7 @@ describe('OpenTelemetrySessionBackend wire', () => {
       },
     })
     expect(eventTypes(captures)).not.toContain('manual')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(eventTypes(captures)).toEqual(session.snapshotEvents().map(event => event.type))
     expect(ops).toHaveLength(0)
   })
@@ -493,6 +495,7 @@ describe('OpenTelemetrySessionBackend wire', () => {
       session.append('turn/start', { turn: 1 })
       expect(captures).toEqual([])
       recordFeedback(session, 'explicit report')
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const submitted = session.snapshotEvents().map(event => event.type)
       await expect.poll(() => eventTypes(captures)).toEqual(submitted)
       session.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
@@ -518,6 +521,7 @@ describe('OpenTelemetrySessionBackend route and feedback', () => {
       session.append('turn/start', { turn: 1 })
       expect(captures).toEqual([])
       recordFeedback(session, 'explicit report')
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const expected = session.snapshotEvents().map(event => event.type)
       await expect.poll(() => eventTypes(captures)).toEqual(expected)
       session.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
@@ -535,6 +539,7 @@ describe('OpenTelemetrySessionBackend route and feedback', () => {
     await ctx.plugin(SessionStore)
     const donor = Session.create(SessionId('stored-feedback'))
     recordFeedback(donor, 'old feedback is not a submission')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const restored = ctx.sessions.create(donor.id, { seed: donor.snapshotEvents(), meta: donor.header })
     try {
       const first = await ctx.plugin(OpenTelemetrySessionBackend, { mode: SessionTelemetryMode.FEEDBACK_ONLY, exporter: { url } })
@@ -545,8 +550,10 @@ describe('OpenTelemetrySessionBackend route and feedback', () => {
         session.append('request/header', { header: { config: { provider, model: 'm' } }, reason: 'change' })
       }
       const child = ctx.sessions.fork(restored, undefined, SessionId('child'))
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const inherited = child.snapshotEvents().find(event => event.type === 'feedback/record')!
       ctx.emit('session/event', child, inherited)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const opened = ctx.sessions.create(SessionId('opened'), { seed: donor.snapshotEvents() })
       ctx.emit('session/created', opened)
       await first.dispose()
@@ -581,6 +588,7 @@ describe('OpenTelemetrySessionBackend route and feedback', () => {
         expect(captures).toEqual([])
         const put = await ctx.messageFeedback.put(request)
         if (!put.ok) throw new Error('live put failed')
+        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         await expect.poll(() => eventTypes(captures)).toEqual(session.snapshotEvents().map(event => event.type))
         const throughPut = session.seq
         await ctx.messageFeedback.put({ ...request, ifVersion: put.value.version })
@@ -588,8 +596,10 @@ describe('OpenTelemetrySessionBackend route and feedback', () => {
         expect(session.seq).toBe(throughPut)
         const edit = await ctx.messageFeedback.put({ ...request, ifVersion: put.value.version, note: 'edited note' })
         if (!edit.ok) throw new Error('live note failed')
+        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         await expect.poll(() => eventTypes(captures)).toEqual(session.snapshotEvents().map(event => event.type))
         await ctx.messageFeedback.delete({ sessionId: session.id, messageId: message.id, ifVersion: edit.value.version })
+        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         await expect.poll(() => eventTypes(captures)).toEqual(session.snapshotEvents().map(event => event.type))
         const submitted = eventTypes(captures)
         const throughDelete = session.seq
@@ -612,6 +622,7 @@ describe('OpenTelemetrySessionBackend route and feedback', () => {
     const { ctx, fiber } = await boot(url)
     const session = Session.create(SessionId('cold-not-submitted'))
     const notify = async () => ctx.parallel('feedback/committed', {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       meta: session.header, events: session.snapshotEvents(), inheritedEventCount: session.inheritedEventCount,
     })
     await notify()
@@ -623,6 +634,7 @@ describe('OpenTelemetrySessionBackend route and feedback', () => {
     child.append('feedback/message-delete', { sessionId: session.id, messageId: message.id })
     await ctx.parallel('feedback/committed', {
       meta: { ...session.header, id: SessionId('inherited-cold'), parentSession: session.id, isSeeded: true },
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       events: session.snapshotEvents(SessionLogOffset(0), SessionLogOffset(1)), inheritedEventCount: SessionLogOffset(1),
     })
     await fiber.dispose()
@@ -642,12 +654,14 @@ describe('OpenTelemetrySessionBackend route and feedback', () => {
       parent.append('request/header', { header: { config: { provider: 'mock', model: 'm' } }, reason: 'initial' })
       const message = createAssistantMessage({ content: [{ type: 'text', text: 'inherited answer' }], source: { provider: 'mock', model: 'm' } })
       parent.append('assistant/message', { message, stream: [], turn: 1, step: 1 }, { surfaceOp: 'append' })
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const child = Session.create(SessionId('cold-child'), parent.snapshotEvents(), {
         ...parent.header, id: SessionId('cold-child'), parentSession: parent.id, isSeeded: true,
       }, parent.seq)
       recordFeedback(child, 'child-owned stored feedback')
       const handle = await ctx.sessionPersistence.create(child.header, { inheritedEventCount: child.inheritedEventCount })
       try {
+        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         await handle.append(child.snapshotEvents())
       } finally {
         await handle.close()
@@ -695,6 +709,7 @@ describe('OpenTelemetrySessionBackend route and feedback', () => {
       session.append('assistant/message', { message, stream: [], turn: 1, step: 1 }, { surfaceOp: 'append' })
       const handle = await ctx.sessionPersistence.create(session.header)
       try {
+        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         await handle.append(session.snapshotEvents())
       } finally {
         await handle.close()
diff --git a/packages/session/session-telemetry/src/coordinator.ts b/packages/session/session-telemetry/src/coordinator.ts
index 773aecb923..14c9916c64 100644
--- a/packages/session/session-telemetry/src/coordinator.ts
+++ b/packages/session/session-telemetry/src/coordinator.ts
@@ -153,6 +153,7 @@ export class SessionTelemetryCoordinator {
       ?? (this.options.includeHistory === true || session.firstLiveSeq === 0 ? -1 : SessionSeq(session.firstLiveSeq - 1))
     // Containment is PER EVENT: one rejected record is withheld fail-closed
     // while the rest of the historical replay proceeds.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     for (const event of session.snapshotEvents(SessionLogOffset(cursor + 1))) {
       if (throughSeq !== undefined && event.seq > throughSeq) break
       this.contain(() => {
diff --git a/packages/session/session-telemetry/tests/redact.spec.ts b/packages/session/session-telemetry/tests/redact.spec.ts
index b563d9c469..7ecdc624a0 100644
--- a/packages/session/session-telemetry/tests/redact.spec.ts
+++ b/packages/session/session-telemetry/tests/redact.spec.ts
@@ -72,6 +72,7 @@ describe('session-telemetry/record waterfall', () => {
     session.append('user/message', createUserMessage({
       content: [{ type: 'text', text: FIXTURE_SECRET }], source: { kind: 'user' },
     }), { surfaceOp: 'append' })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const logged = session.snapshotEvents()[0]!.data as { content: { text: string }[] }
     expect(logged.content[0]!.text).toBe(FIXTURE_SECRET)
   })
@@ -124,6 +125,7 @@ describe('session-telemetry/record waterfall', () => {
       content: [{ type: 'text', text: 'hi' }], source: { kind: 'user' },
     }), { surfaceOp: 'append' })
     expect(backend.records).toHaveLength(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(1)
   })
 })
diff --git a/packages/session/session-telemetry/tests/telemetry.spec.ts b/packages/session/session-telemetry/tests/telemetry.spec.ts
index ac9ffdcfc0..8a5b50bbe7 100644
--- a/packages/session/session-telemetry/tests/telemetry.spec.ts
+++ b/packages/session/session-telemetry/tests/telemetry.spec.ts
@@ -128,11 +128,13 @@ describe('SessionTelemetryCoordinator capture', () => {
       'event.type': 'turn/start',
       'event.seq': 0,
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(start.time).toBe(session.snapshotEvents()[0]!.time)
     expect(start.severity).toBe('info')
     expect(message.attributes['event.seq']).toBe(1)
     // Deep-copy isolation: mutating the handed-off body never reaches the log.
     ;(message.body as { content: { text: string }[] }).content[0]!.text = 'tampered'
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const logged = session.snapshotEvents()[1] as SessionEvent<'user/message'>
     expect(logged.data.content[0]).toMatchObject({ text: 'hello' })
   })
@@ -244,6 +246,7 @@ describe('SessionTelemetryCoordinator on-demand capture', () => {
     const session = liveSession(ctx, 'on-demand-prefix')
     appendTurn(session)
     appendAssistantMessage(session, 1, 1, ['first'], 100)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const firstBoundary = session.snapshotEvents()[2]!.seq
     appendAssistantMessage(session, 1, 2, ['second'], 200)
     session.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
@@ -299,6 +302,7 @@ describe('SessionTelemetryCoordinator on-demand capture', () => {
       })
       const parent = liveSession(ctx, 'history-parent')
       appendTurn(parent)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const child = ctx.sessions.create(SessionId('history-child'), { seed: [...parent.snapshotEvents()] })
       const boundary = child.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
       child.append('turn/start', { turn: 2 })
@@ -398,6 +402,7 @@ describe('SessionTelemetryCoordinator adoption', () => {
       inject: ['sessions'],
       apply: (inner: Context) => void new SessionTelemetryCoordinator(inner, backend),
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const child = ctx.sessions.prepare(SessionId('seeded'), { seed: [...parent.snapshotEvents()], meta: {} })
     child.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
     ctx.sessions.enter(child)
@@ -427,6 +432,7 @@ describe('SessionTelemetryCoordinator adoption', () => {
     // telemetry therefore receives a current-format object with the complete
     // migrated canonical seed.
     const resumed = ctx.sessions.prepare(SessionId('resumed'), {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       seed: structuredClone(donor.snapshotEvents()) as SessionEvent[],
       meta: {
         version: SESSION_FORMAT_VERSION,
@@ -460,7 +466,9 @@ describe('SessionTelemetryCoordinator adoption', () => {
     const parent = liveSession(ctx, 'stitch-parent')
     appendTurn(parent)
     const child = ctx.sessions.create(SessionId('stitch-child'), {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       seed: [...parent.snapshotEvents()],
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       inheritedEventCount: SessionLogOffset(parent.snapshotEvents().length),
       meta: { parentSession: SessionId('stitch-parent'), isSeeded: true },
     })
diff --git a/packages/session/session-title-all-prompts-llm/tests/provider.spec.ts b/packages/session/session-title-all-prompts-llm/tests/provider.spec.ts
index 429f1f5bd3..ef37a9d131 100644
--- a/packages/session/session-title-all-prompts-llm/tests/provider.spec.ts
+++ b/packages/session/session-title-all-prompts-llm/tests/provider.spec.ts
@@ -53,6 +53,7 @@ describe('all-messages LLM title provider', () => {
     ctx.llm.registerAdapter(['current-route'], adapter)
     await ctx.plugin(providerPlugin, LLM_CONFIG)
     const session = ctx.sessions.create(SessionId('all-plugin'), {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       seed: seeded.snapshotEvents(),
       inheritedEventCount: seeded.seq,
       meta: { parentSession: seeded.id, isSeeded: true },
diff --git a/packages/session/session-title-llm/tests/llm.spec.ts b/packages/session/session-title-llm/tests/llm.spec.ts
index 240ddefa2b..bd9ce65dc4 100644
--- a/packages/session/session-title-llm/tests/llm.spec.ts
+++ b/packages/session/session-title-llm/tests/llm.spec.ts
@@ -126,6 +126,7 @@ describe('generateSessionTitleWithLlm', () => {
     const providerRequest = request(ctx)
     let requestWasLoggedAtDispatch = false
     const adapter = new RecordingAdapter(SCRIPT, () => {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       requestWasLoggedAtDispatch = providerRequest.session.snapshotEvents()
         .some(event => event.type === 'session/title-llm-request')
     })
@@ -162,6 +163,7 @@ describe('generateSessionTitleWithLlm', () => {
     const prompt = options.messages[0]?.content[0]
     expect(prompt?.type === 'text' && prompt.text).toContain('first prompt')
     expect(prompt?.type === 'text' && prompt.text).toContain('第二个问题')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(providerRequest.session.snapshotEvents().findLast(event => event.type === 'session/title-llm-request')?.data)
       .toEqual({
         titleProvider: TITLE_PROVIDER,
@@ -193,6 +195,7 @@ describe('generateSessionTitleWithLlm', () => {
     await expect(generateSessionTitleWithLlm(ctx, config, oversized, [selected], TITLE_PROVIDER))
       .rejects.toThrow(/input.*bytes.*maxInputBytes/i)
     expect(adapter.requests).toEqual([])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(oversized.session.snapshotEvents().some(event => event.type === 'session/title-llm-request')).toBe(false)
 
     const withinLimit = resolveSessionTitleLlmConfig({ ...config, maxInputBytes: 1_000 })
@@ -261,6 +264,7 @@ describe('generateSessionTitleWithLlm', () => {
       providerRequest.messages,
       TITLE_PROVIDER,
     )).rejects.toMatchObject({ message, code })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(providerRequest.session.snapshotEvents().some(event => event.type === 'session/title-llm-request')).toBe(true)
   })
 
diff --git a/packages/session/session-title/src/index.ts b/packages/session/session-title/src/index.ts
index 3e36f1d588..014310b529 100644
--- a/packages/session/session-title/src/index.ts
+++ b/packages/session/session-title/src/index.ts
@@ -383,6 +383,7 @@ export class SessionTitleService extends Service {
    * @returns latest title snapshot, or `undefined` before eligible input.
    */
   get(session: Session): SessionTitleSnapshot | undefined {
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     return foldSessionTitle(session.snapshotEvents())
   }
 
@@ -593,6 +594,7 @@ export class SessionTitleService extends Service {
       this.assertCurrent(session, work)
       await this.ensureFallback(session)
       this.assertCurrent(session, work)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const messages = collectSessionTitleMessages(session.snapshotEvents(), work.throughSeq)
       const result = await work.registration.provider.generate({
         session,
diff --git a/packages/session/session-title/src/invariant.ts b/packages/session/session-title/src/invariant.ts
index e12cd6ca25..986b95f81d 100644
--- a/packages/session/session-title/src/invariant.ts
+++ b/packages/session/session-title/src/invariant.ts
@@ -46,6 +46,7 @@ function validate(
       fail(`session/title event ${String(event.seq)} repeats message seq ${checked}`)
     }
     seen.add(checked)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const cited = checked < event.seq ? session.eventAt(checked) : undefined
     if (cited?.type !== 'user/message' || cited.data.source.kind !== 'user') {
       fail(`session/title event ${String(event.seq)} message seq ${checked} must name an earlier human user/message`)
@@ -55,6 +56,7 @@ function validate(
 
 const install: InvariantInstaller = Object.assign((ctx: Context, fail: InvariantFailure) => {
   const validateExisting = (session: Session): void => {
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     for (const event of session.snapshotEvents()) {
       if (event.type === 'session/title') validate(session, event, fail)
     }
diff --git a/packages/session/session-title/tests/projection.spec.ts b/packages/session/session-title/tests/projection.spec.ts
index df2b5f1f91..90f6a207bb 100644
--- a/packages/session/session-title/tests/projection.spec.ts
+++ b/packages/session/session-title/tests/projection.spec.ts
@@ -17,6 +17,7 @@ async function harness(withTitleService: boolean): Promise<{ ctx: Context; sessi
 }
 
 function appendTitle(session: Session, title: string): SessionSeqType {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   const messageSeq = session.snapshotEvents().find(event =>
     event.type === 'user/message' && event.data.source.kind === 'user')?.seq
     ?? session.append('user/message', createUserMessage({
diff --git a/packages/session/session-title/tests/provider.spec.ts b/packages/session/session-title/tests/provider.spec.ts
index d9632ea3b6..2708d51e2c 100644
--- a/packages/session/session-title/tests/provider.spec.ts
+++ b/packages/session/session-title/tests/provider.spec.ts
@@ -66,7 +66,9 @@ describe('SessionTitleService Provider lifecycle', () => {
 
     const child = ctx.sessions.fork(parent, undefined, SessionId('title-child'))
     expect(ctx.sessionTitle.get(child)).toEqual(ctx.sessionTitle.get(parent))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.snapshotEvents().find(event => event.type === 'session/title'))
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       .toEqual(parent.snapshotEvents().find(event => event.type === 'session/title'))
 
     const firstGenerate = vi.fn(async (request: SessionTitleProviderRequest) => ({
@@ -377,6 +379,7 @@ describe('SessionTitleService Provider lifecycle', () => {
     })))
     await settle()
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event => event.type === 'request/header')).toHaveLength(1)
     expect(requests).toHaveLength(2)
     expect(requests[1]).toMatchObject({
diff --git a/packages/session/session-title/tests/rename.spec.ts b/packages/session/session-title/tests/rename.spec.ts
index 9654c18edc..706511d2e3 100644
--- a/packages/session/session-title/tests/rename.spec.ts
+++ b/packages/session/session-title/tests/rename.spec.ts
@@ -46,6 +46,7 @@ describe('SessionTitleService.rename', () => {
       messageSeqs: [],
       source: { kind: 'user' },
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const event = session.snapshotEvents().findLast(item => item.type === 'session/title')
     expect(event?.data).toEqual({
       title: 'Hand picked name',
@@ -53,6 +54,7 @@ describe('SessionTitleService.rename', () => {
       source: { kind: 'user' },
     })
     // foldSessionTitle round-trips the third source kind.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldSessionTitle(session.snapshotEvents())?.source).toEqual({ kind: 'user' })
   })
 
@@ -164,6 +166,7 @@ describe('SessionTitleService.rename', () => {
     await settle()
     // The released provider result must not append over the user title, and
     // the swallowed abort must not surface as an unhandled rejection.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const latest = session.snapshotEvents().findLast(item => item.type === 'session/title')
     expect(latest?.data).toMatchObject({ title: 'User wins', source: { kind: 'user' } })
   })
diff --git a/packages/session/session-title/tests/service-contracts.spec.ts b/packages/session/session-title/tests/service-contracts.spec.ts
index c6e0dc93c3..c0b13910fe 100644
--- a/packages/session/session-title/tests/service-contracts.spec.ts
+++ b/packages/session/session-title/tests/service-contracts.spec.ts
@@ -171,6 +171,7 @@ describe('SessionTitleService configuration and refresh boundaries', () => {
     })
     const source = appendPrompt(seed, 'Create exactly one fallback title')
     seed.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const session = ctx.sessions.create(SessionId('fallback-concurrency'), { seed: seed.snapshotEvents() })
 
     const results = await Promise.all([
@@ -179,7 +180,9 @@ describe('SessionTitleService configuration and refresh boundaries', () => {
     ])
 
     expect(results[0]).toEqual(results[1])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event => event.type === 'session/title')).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().map(event => event.type)).toEqual([
       'turn/start',
       'user/message',
@@ -204,6 +207,7 @@ describe('SessionTitleService configuration and refresh boundaries', () => {
     })
 
     await expect(refresh).resolves.toMatchObject({ title: 'Already accepted' })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event => event.type === 'session/title')).toHaveLength(1)
   })
 
@@ -266,6 +270,7 @@ describe('SessionTitleService configuration and refresh boundaries', () => {
     await fiber.dispose()
     await settle()
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'session/title')).toBe(false)
     const inactiveError = await lifecycle.inactiveRefresh
     expect(inactiveError).toBeInstanceOf(Error)
@@ -285,6 +290,7 @@ describe('SessionTitleService configuration and refresh boundaries', () => {
     await Promise.resolve()
     await fiber.dispose()
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'session/title')).toBe(false)
     expect(warn).not.toHaveBeenCalled()
   })
diff --git a/packages/session/session-title/tests/session-title.spec.ts b/packages/session/session-title/tests/session-title.spec.ts
index 69edbb84ff..b5cbf31c3c 100644
--- a/packages/session/session-title/tests/session-title.spec.ts
+++ b/packages/session/session-title/tests/session-title.spec.ts
@@ -53,6 +53,7 @@ describe('SessionTitleService', () => {
 
     await settleTitles()
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const titleEvent = session.snapshotEvents().findLast(event => event.type === 'session/title')
     expect(titleEvent).toMatchObject({
       type: 'session/title',
@@ -140,6 +141,7 @@ describe('SessionTitleService', () => {
 
     expect(first?.messageSeqs).toEqual([eligible.seq])
     expect(ctx.sessionTitle.get(session)).toEqual(first)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event => event.type === 'session/title')).toHaveLength(1)
   })
 
@@ -160,6 +162,7 @@ describe('SessionTitleService', () => {
       },
     })
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldSessionTitle(seed.snapshotEvents())).toEqual({
       title: 'Later',
       messageSeqs: [1, 4],
@@ -169,6 +172,7 @@ describe('SessionTitleService', () => {
         model: { provider: 'mock', model: 'title-model' },
       },
       eventSeq: 1,
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       updatedAt: seed.snapshotEvents()[1]?.time,
     })
   })
@@ -176,6 +180,7 @@ describe('SessionTitleService', () => {
   it('folds an empty or title-less log to undefined', () => {
     expect(foldSessionTitle([])).toBeUndefined()
     const empty = Session.create(SessionId('no-title'))
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldSessionTitle(empty.snapshotEvents())).toBeUndefined()
   })
 })
diff --git a/packages/shell/tool-bash/tests/integration.spec.ts b/packages/shell/tool-bash/tests/integration.spec.ts
index cf2a4e1d2e..d561bed780 100644
--- a/packages/shell/tool-bash/tests/integration.spec.ts
+++ b/packages/shell/tool-bash/tests/integration.spec.ts
@@ -58,6 +58,7 @@ function waitForIdle(ctx: Context, agent: Agent): Promise<void> {
 }
 
 function events(agent: Agent): readonly SessionEvent[] {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return agent.session.snapshotEvents()
 }
 
diff --git a/packages/shell/tool-bash/tests/tools.spec.ts b/packages/shell/tool-bash/tests/tools.spec.ts
index 1dfbd27b81..b70b02691c 100644
--- a/packages/shell/tool-bash/tests/tools.spec.ts
+++ b/packages/shell/tool-bash/tests/tools.spec.ts
@@ -631,6 +631,7 @@ describe('sandbox escalation through the generic task producer', () => {
     expect(prompted).not.toHaveBeenCalled()
 
     const malformed = sandboxAgent()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ;(malformed.session.snapshotEvents() as unknown as Array<{ type: string; data: { mode: string }; seq: number }>).push({
       type: 'sandbox/mode',
       data: { mode: 'unknown-mode' },
diff --git a/packages/skill/tool-skill/src/index.ts b/packages/skill/tool-skill/src/index.ts
index 3465cd843c..0099332fa2 100644
--- a/packages/skill/tool-skill/src/index.ts
+++ b/packages/skill/tool-skill/src/index.ts
@@ -362,6 +362,7 @@ function catalogHistory(agent: Agent): { visibleDigest?: string; published: bool
   const visible = new Set(agent.session.surface.nodes)
   let published = false
   for (let index = agent.session.seq - 1; index >= 0; index -= 1) {
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const event = agent.session.eventAt(SessionSeq(index))
     if (event === undefined) {
       throw new Error(`skill catalog cannot read seq ${String(index)} below the current Session length`)
diff --git a/packages/skill/tool-skill/tests/tool-skill.spec.ts b/packages/skill/tool-skill/tests/tool-skill.spec.ts
index 603166de04..7fe649b1a8 100644
--- a/packages/skill/tool-skill/tests/tool-skill.spec.ts
+++ b/packages/skill/tool-skill/tests/tool-skill.spec.ts
@@ -124,6 +124,7 @@ async function proposeStep(
 }
 
 function catalogMessages(session: Session): Extract<SessionEvent, { type: 'user/message' }>[] {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return session.snapshotEvents().filter((event): event is Extract<SessionEvent, { type: 'user/message' }> => event.type === 'user/message'
     && event.data.source.kind === 'skill-catalog')
 }
diff --git a/packages/subagent/subagent-fork-in-process/src/index.ts b/packages/subagent/subagent-fork-in-process/src/index.ts
index 0e0311ebb5..0e69915b60 100644
--- a/packages/subagent/subagent-fork-in-process/src/index.ts
+++ b/packages/subagent/subagent-fork-in-process/src/index.ts
@@ -46,6 +46,7 @@ export const Config: z<Config> = z.object({
  * @returns the seed events, contiguous from seq 0; empty when no turn has completed.
  */
 function completedTurnPrefix(parent: Agent): SessionEvent[] {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   const events = parent.session.snapshotEvents()
   const lastEnd = events.findLast(e => e.type === 'turn/end')
   if (lastEnd === undefined) return []
diff --git a/packages/subagent/subagent-fork-in-process/tests/multi-subagent.spec.ts b/packages/subagent/subagent-fork-in-process/tests/multi-subagent.spec.ts
index 35c8af4df3..04238d479b 100644
--- a/packages/subagent/subagent-fork-in-process/tests/multi-subagent.spec.ts
+++ b/packages/subagent/subagent-fork-in-process/tests/multi-subagent.spec.ts
@@ -67,6 +67,7 @@ describe('multi-subagent coexistence (spawn + fork on one context)', () => {
     // Parent does one real turn first, so the fork has a completed turn to seed.
     parent.followup(createUserMessage({ content: [{ type: 'text', text: 'parent q1' }], source: { kind: 'user' } }))
     await parent.whenIdle()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const parentPrefixLen = parent.session.snapshotEvents().length
 
     // Delegate to a fresh spawn child.
@@ -88,6 +89,7 @@ describe('multi-subagent coexistence (spawn + fork on one context)', () => {
     expect(spawnChild.session.header.parentSession).toBe(parent.session.header.id)
     expect(forkChild.session.header.parentSession).toBe(parent.session.header.id)
     // The fork child inherited the parent's prefix; the spawn child did not.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(forkChild.session.snapshotEvents().slice(0, parentPrefixLen).some(e => e.type === 'user/message')).toBe(true)
 
     await spawnRun.dispose()
@@ -96,12 +98,14 @@ describe('multi-subagent coexistence (spawn + fork on one context)', () => {
     // The parent is unaffected and keeps working after both delegations.
     parent.followup(createUserMessage({ content: [{ type: 'text', text: 'parent q2' }], source: { kind: 'user' } }))
     await parent.whenIdle()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const lastParentMessage = parent.session.snapshotEvents().findLast(e => e.type === 'assistant/message')
     expect(lastParentMessage?.type === 'assistant/message' && text(lastParentMessage.data.message.content)).toBe('parent turn two')
     // The parent's OWN log never recorded the children's internal steps — its
     // only subagent-related entries would be tool/call+tool/result IF it had
     // used the tool, but here we called the service directly, so the parent log
     // is purely its own two turns.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(parent.session.snapshotEvents().filter(e => e.type === 'turn/end')).toHaveLength(2)
   })
 })
diff --git a/packages/subagent/subagent-fork-in-process/tests/subagent-fork-in-process.spec.ts b/packages/subagent/subagent-fork-in-process/tests/subagent-fork-in-process.spec.ts
index 6f7080cd31..2e557bebb0 100644
--- a/packages/subagent/subagent-fork-in-process/tests/subagent-fork-in-process.spec.ts
+++ b/packages/subagent/subagent-fork-in-process/tests/subagent-fork-in-process.spec.ts
@@ -84,6 +84,7 @@ describe('dsh-subagent-fork-in-process', () => {
     expect(text(result.output)).toBe('fresh child')
     const child = ctx.agents.get(run.id)!
     // Only the child's own turn — no seeded parent turns.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().filter(e => e.type === 'turn/end')).toHaveLength(1)
     expect(child.session.header.isSeeded).toBe(false)
     expect(child.session.inheritedEventCount).toBe(0)
@@ -96,6 +97,7 @@ describe('dsh-subagent-fork-in-process', () => {
     await parent.whenIdle()
     parent.followup(createUserMessage({ content: [{ type: 'text', text: 'q2' }], source: { kind: 'user' } }))
     await parent.whenIdle()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const parentPrefixLen = parent.session.snapshotEvents().length
 
     const run = await start(ctx, 'fork', { prompt: [{ type: 'text', text: 'child q' }], parent })
@@ -103,7 +105,9 @@ describe('dsh-subagent-fork-in-process', () => {
     const child = ctx.agents.get(run.id)!
     expect(child.session.header.isSeeded).toBe(true)
     expect(child.session.inheritedEventCount).toBe(parentPrefixLen)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().slice(0, parentPrefixLen).at(-1)?.type).toBe('turn/end')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().slice(0, parentPrefixLen).filter(e => e.type === 'turn/end')).toHaveLength(2)
     await run.dispose()
   })
@@ -112,6 +116,7 @@ describe('dsh-subagent-fork-in-process', () => {
     const { ctx, parent } = await setup([textResponse('parent answer'), textResponse('child answer')])
     parent.followup(createUserMessage({ content: [{ type: 'text', text: 'parent question' }], source: { kind: 'user' } }))
     await parent.whenIdle()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const parentPrefixLen = parent.session.snapshotEvents().length
 
     const run = await start(ctx, 'fork', { prompt: [{ type: 'text', text: 'child question' }], parent })
@@ -121,8 +126,10 @@ describe('dsh-subagent-fork-in-process', () => {
 
     const child = ctx.agents.get(run.id)!
     // The child's log STARTS with the parent's prefix (seeded), then its own turn.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().length).toBeGreaterThan(parentPrefixLen)
     // The seeded prefix carried the parent's user message.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const seededUser = child.session.snapshotEvents().slice(0, parentPrefixLen).find(e => e.type === 'user/message')
     expect(seededUser).toBeDefined()
     // Lineage stamped.
@@ -153,6 +160,7 @@ describe('dsh-subagent-fork-in-process', () => {
 
     const child = ctx.agents.get(run.id)!
     // The child's seed has exactly the ONE completed parent turn (the open one excluded).
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const seedTurnEnds = child.session.snapshotEvents().filter(e => e.type === 'turn/end')
     // 1 from the seeded parent turn + 1 from the child's own completed turn.
     expect(seedTurnEnds.length).toBe(2)
diff --git a/packages/subagent/subagent-in-process-driver/src/index.ts b/packages/subagent/subagent-in-process-driver/src/index.ts
index c0886dc104..91348b2da9 100644
--- a/packages/subagent/subagent-in-process-driver/src/index.ts
+++ b/packages/subagent/subagent-in-process-driver/src/index.ts
@@ -215,6 +215,7 @@ function readResult(
   cancelled: boolean,
   structured?: { captured?: { value: unknown } | undefined },
 ): SubagentResult {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   const own = child.session.snapshotEvents(boundary)
   // `droppedUnrun` is deliberately unread: a one-shot prompt is claimed by its
   // awaited first turn almost immediately, and the owner's own teardown is the
diff --git a/packages/subagent/subagent-in-process-driver/tests/inheritance.spec.ts b/packages/subagent/subagent-in-process-driver/tests/inheritance.spec.ts
index d3fc067a5a..72d3426a8a 100644
--- a/packages/subagent/subagent-in-process-driver/tests/inheritance.spec.ts
+++ b/packages/subagent/subagent-in-process-driver/tests/inheritance.spec.ts
@@ -69,6 +69,7 @@ function spawnRequest(parent: Agent) {
 }
 
 function toolResultTexts(agent: Agent): string[] {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return agent.session.snapshotEvents()
     .filter((event): event is SessionEvent<'tool/result'> => event.type === 'tool/result')
     .map(event => event.data.message.content
@@ -86,6 +87,7 @@ describe('in-process policy inheritance', () => {
     setSandboxMode(parent.session, 'read-only')
     // No parent approval override: the child pin must not depend on one.
     expect(ctx.approval.overrideOf(parent.session)).toBeUndefined()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const parentLogLength = parent.session.snapshotEvents().length
     script.push(
       toolCallResponse('write', 'write', { file_path: blocked, content: 'escaped' }),
@@ -100,6 +102,7 @@ describe('in-process policy inheritance', () => {
       await expect(readFile(blocked, 'utf8')).rejects.toMatchObject({ code: 'ENOENT' })
       expect(toolResultTexts(child).join('\n')).toContain(READ_ONLY_DENIAL)
       expect(result.stopReason).toBe('completed')
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(child.session.snapshotEvents().slice(0, 2)).toMatchObject([
         { type: 'sandbox/mode', seq: 0, data: { mode: 'read-only', source: 'delegation' } },
         { type: 'approval/policy', seq: 1, data: { policy: 'never', source: 'delegation' } },
@@ -109,12 +112,15 @@ describe('in-process policy inheritance', () => {
       expect(child.session.inheritedEventCount).toBe(0)
       expect(ctx.sandboxPolicy.overrideOf(child.session)).toBe('read-only')
       expect(ctx.approval.overrideOf(child.session)).toBe('never')
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const request = child.session.snapshotEvents().find(
         (event): event is SessionEvent<'request/header'> => event.type === 'request/header',
       )
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const systemNode = child.session.snapshotEvents().find(
         (event): event is SessionEvent<'system/message'> => event.type === 'system/message',
       )
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const runtimeContext = child.session.snapshotEvents().find(
         (event): event is SessionEvent<'user/message'> => event.type === 'user/message'
           && event.data.source.kind === 'plugin'
@@ -142,6 +148,7 @@ describe('in-process policy inheritance', () => {
         .join('\n')
       expect(systemText).not.toContain('Approval prompts are disabled')
       expect(systemText).not.toContain('You are a delegated subagent')
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(parent.session.snapshotEvents()).toHaveLength(parentLogLength)
     } finally {
       await run.dispose()
@@ -153,6 +160,7 @@ describe('in-process policy inheritance', () => {
     const { ctx, parent } = await setupWalled(script)
     const blocked = join(workspace, 'fork-blocked.txt')
     setSandboxMode(parent.session, 'workspace-write')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const seed = parent.session.snapshotEvents()
     setSandboxMode(parent.session, 'read-only')
     script.push(
@@ -169,6 +177,7 @@ describe('in-process policy inheritance', () => {
       expect(child.session.inheritedEventCount).toBe(1)
       expect(child.session.firstLiveSeq).toBe(seed.length)
       // seq 1 is the constructor's end-seed marker.
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(child.session.snapshotEvents().filter(event => event.type === 'sandbox/mode')).toMatchObject([
         { seq: 0, data: { mode: 'workspace-write' } },
         { seq: 2, data: { mode: 'read-only', source: 'delegation' } },
@@ -215,7 +224,9 @@ describe('in-process policy inheritance', () => {
       await run.result
       const child = run.localAgent as Agent
       expect(await readFile(allowed, 'utf8')).toBe('fine')
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(child.session.snapshotEvents().some(event => event.type === 'sandbox/mode')).toBe(false)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(child.session.snapshotEvents().filter(event => event.type === 'approval/policy')).toMatchObject([
         { seq: 0, data: { policy: 'never', source: 'delegation' } },
       ])
@@ -255,9 +266,11 @@ describe('in-process policy inheritance', () => {
       expect(consulted).toBe(false)
       expect(toolResultTexts(child).join('\n'))
         .toContain('the user rejected escalating this operation to "workspace-write"')
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const asked = child.session.snapshotEvents().find(
         (event): event is SessionEvent<'approval/asked'> => event.type === 'approval/asked',
       )
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const decided = child.session.snapshotEvents().find(
         (event): event is SessionEvent<'approval/decided'> => event.type === 'approval/decided',
       )
diff --git a/packages/subagent/subagent-in-process-driver/tests/preset-inheritance.spec.ts b/packages/subagent/subagent-in-process-driver/tests/preset-inheritance.spec.ts
index 106b9e3eaa..e4ec2605b0 100644
--- a/packages/subagent/subagent-in-process-driver/tests/preset-inheritance.spec.ts
+++ b/packages/subagent/subagent-in-process-driver/tests/preset-inheritance.spec.ts
@@ -85,6 +85,7 @@ describe('a child agent composed in-process', () => {
     const run = await startInProcessRun(spawnRequest(parent), {})
     await run.result
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(run.localAgent?.session.snapshotEvents().some(event =>
       event.type === 'system/message'
       && JSON.stringify(event.data.message.content).includes('section for preset_only'))).toBe(true)
diff --git a/packages/subagent/subagent-in-process-driver/tests/structured.spec.ts b/packages/subagent/subagent-in-process-driver/tests/structured.spec.ts
index fa4bfdb22b..70398a2f9f 100644
--- a/packages/subagent/subagent-in-process-driver/tests/structured.spec.ts
+++ b/packages/subagent/subagent-in-process-driver/tests/structured.spec.ts
@@ -196,6 +196,7 @@ describe('in-process structured output', () => {
     expect(result.structured).toEqual({ answer: 5 })
     expect(sideEffectRan).toBe(false)
     const child = ctx.agents.get(run.id)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const sideEffectResult = child?.session.snapshotEvents().find(event =>
       event.type === 'tool/result' && event.data.message.source.callId === 'c2')
     expect(sideEffectResult?.type === 'tool/result' && sideEffectResult.data.message.content[0].isError).toBe(true)
@@ -240,6 +241,7 @@ describe('in-process structured output', () => {
     expect(result.stopReason).toBe('completed')
     // The child's log carries the isError tool/result for the invalid call.
     const child = ctx.agents.get(run.id)!
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const results = child.session.snapshotEvents().filter(e => e.type === 'tool/result')
     expect(results.length).toBe(2)
     expect(results[0]!.data.message.content[0].isError).toBe(true)
@@ -258,6 +260,7 @@ describe('in-process structured output', () => {
     // Exactly one model request and one caller-supplied user message: no nudge turn exists.
     expect(adapter.requests.length).toBe(1)
     const child = ctx.agents.get(run.id)!
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().filter(e => e.type === 'user/message' && e.data.source.kind !== 'plugin').length).toBe(1)
     await run.dispose()
   })
@@ -323,6 +326,7 @@ describe('in-process structured output', () => {
     expect(result.stopReason).toBe('error')
     // ...the logged tool result is the blocked isError with the feedback...
     const child = ctx.agents.get(run.id)!
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const results = child.session.snapshotEvents().filter(e => e.type === 'tool/result')
     expect(results[0]!.data.message.content[0].isError).toBe(true)
     expect(JSON.stringify(results[0]!.data.message.content)).toContain('capture rejected by hook')
@@ -368,6 +372,7 @@ describe('in-process structured output', () => {
     expect(result.structured).toBeUndefined()
     expect(result.stopReason).toBe('error')
     const child = ctx.agents.get(run.id)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const captureResult = child?.session.snapshotEvents().find(event =>
       event.type === 'tool/result' && event.data.message.source.callId === 'c1')
     expect(captureResult?.type === 'tool/result' && captureResult.data.message.content[0].isError).toBe(true)
@@ -440,6 +445,7 @@ describe('in-process structured output', () => {
     expect(result.stopReason).toBe('error')
     expect(adapter.requests).toHaveLength(2)
     const child = ctx.agents.get(run.id)!
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const outer = child.session.snapshotEvents().find(event =>
       event.type === 'tool/result' && event.data.message.source.callId === ToolCallId('c1'))
     expect(outer?.type === 'tool/result' && outer.data.message.content[0].isError).toBe(true)
diff --git a/packages/subagent/subagent-in-process-driver/tests/subagent-in-process-driver.spec.ts b/packages/subagent/subagent-in-process-driver/tests/subagent-in-process-driver.spec.ts
index d11fa73b05..e274ac7cb4 100644
--- a/packages/subagent/subagent-in-process-driver/tests/subagent-in-process-driver.spec.ts
+++ b/packages/subagent/subagent-in-process-driver/tests/subagent-in-process-driver.spec.ts
@@ -150,6 +150,7 @@ describe('startInProcessRun', () => {
     let injected = false
     ctx.on('session/flush', (session) => {
       if (injected || session.header.parentSession === undefined) return
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const lastEnd = session.snapshotEvents().findLast(event => event.type === 'turn/end')
       if (lastEnd?.type !== 'turn/end' || lastEnd.data.reason.kind !== 'max-tokens') return
       injected = true
@@ -164,6 +165,7 @@ describe('startInProcessRun', () => {
     const child = ctx.agents.get(run.id)!
 
     expect(injected).toBe(false)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().findLast(event => event.type === 'turn/end'))
       .toMatchObject({ data: { reason: { kind: 'max-tokens' } } })
     expect(result.stopReason).toBe('max-tokens')
@@ -199,6 +201,7 @@ describe('startInProcessRun', () => {
     const { ctx, parent } = await setup([textResponse('parent answer'), textResponse('child answer')])
     parent.followup(createUserMessage({ content: [{ type: 'text', text: 'parent question' }], source: { kind: 'user' } }))
     await parent.whenIdle()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const seed = parent.session.snapshotEvents()
     const run = await startInProcessRun(request(parent), { seed })
     const result = await run.result
@@ -206,11 +209,13 @@ describe('startInProcessRun', () => {
     const child = ctx.agents.get(run.id)!
     expect(child.session.header.isSeeded).toBe(true)
     expect(child.session.inheritedEventCount).toBe(seed.length)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().slice(0, seed.length)).toEqual(seed)
     // The seeded `system/message` stays surface node 0: the child renders the
     // same prompt, so its loop appends no second system node.
     const seededSystem = seed.find(event => event.type === 'system/message')
     expect(seededSystem).toBeDefined()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().filter(event => event.type === 'system/message')).toHaveLength(1)
     expect(child.session.surface.nodes[0]).toBe(seededSystem?.seq)
     expect(child.session.deriveMessages()[0]).toEqual(parent.session.deriveMessages()[0])
@@ -221,6 +226,7 @@ describe('startInProcessRun', () => {
     const { ctx, parent, adapter } = await setup([textResponse('parent answer'), textResponse('child answer')])
     parent.followup(createUserMessage({ content: [{ type: 'text', text: 'parent question' }], source: { kind: 'user' } }))
     await parent.whenIdle()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const seed = parent.session.snapshotEvents()
     const seededSystem = seed.find(event => event.type === 'system/message')
     if (seededSystem === undefined) throw new Error('the parent log lacks a system node')
@@ -229,6 +235,7 @@ describe('startInProcessRun', () => {
     const run = await startInProcessRun(request(parent), { seed })
     await run.result
     const child = ctx.agents.get(run.id)!
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const systemNodes = child.session.snapshotEvents().filter(event => event.type === 'system/message')
     expect(systemNodes.map(event => event.seq)).toEqual([seededSystem.seq, systemNodes[1]?.seq])
     expect(systemNodes[1]?.surfaceOp).toEqual({ op: 'replace', startSeq: seededSystem.seq, endSeq: seededSystem.seq })
@@ -360,6 +367,7 @@ describe('startInProcessRun', () => {
     })
     expect(adapter.requests[0]?.signal?.reason).toEqual({ kind: 'parent' })
     const child = parent.ctx.agents.get(signalled.id)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = child?.session.snapshotEvents().findLast(event => event.type === 'turn/end')
     expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason).toEqual({ kind: 'aborted', reason: { kind: 'parent' } })
     await signalled.dispose()
diff --git a/packages/subagent/subagent-spawn-in-process/tests/spawn-in-process.e2e.ts b/packages/subagent/subagent-spawn-in-process/tests/spawn-in-process.e2e.ts
index 3e764070f7..c031772384 100644
--- a/packages/subagent/subagent-spawn-in-process/tests/spawn-in-process.e2e.ts
+++ b/packages/subagent/subagent-spawn-in-process/tests/spawn-in-process.e2e.ts
@@ -38,6 +38,7 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('spawn backend with-key smoke', (
 
     // The parent's log records the subagent tool/call + its result (not the
     // child's internal steps).
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = parent.session.snapshotEvents()
     const subagentCalls = events.filter(e => e.type === 'tool/call' && e.data.name === 'subagent')
     expect(subagentCalls.length).toBeGreaterThan(0)
diff --git a/packages/subagent/subagent-spawn-in-process/tests/subagent-spawn-in-process.spec.ts b/packages/subagent/subagent-spawn-in-process/tests/subagent-spawn-in-process.spec.ts
index b678f5c263..957496e492 100644
--- a/packages/subagent/subagent-spawn-in-process/tests/subagent-spawn-in-process.spec.ts
+++ b/packages/subagent/subagent-spawn-in-process/tests/subagent-spawn-in-process.spec.ts
@@ -118,6 +118,7 @@ describe('dsh-subagent-spawn-in-process', () => {
     const { ctx, parent } = await setup([textResponse('parent turn'), textResponse('child sees nothing')])
     parent.followup(createUserMessage({ content: [{ type: 'text', text: 'parent prompt' }], source: { kind: 'user' } }))
     await parent.whenIdle()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const parentEventCount = parent.session.snapshotEvents().length
     expect(parentEventCount).toBeGreaterThan(0)
 
@@ -125,6 +126,7 @@ describe('dsh-subagent-spawn-in-process', () => {
     await run.result
     const child = ctx.agents.get(run.id)!
     // The child's first user/message is its OWN prompt, not the parent's history.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const firstUser = child.session.snapshotEvents().find(e => e.type === 'user/message')
     expect(firstUser).toBeDefined()
     await run.dispose()
@@ -439,6 +441,7 @@ describe('dsh-subagent-spawn-in-process', () => {
       expect((childRequest.tools ?? []).map(t => t.name)).not.toContain('forbidden_tool')
       // …and the attempted call executed as UNKNOWN_TOOL (visible in the log).
       const child = ctx.agents.get(run.id)!
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const toolResult = child.session.snapshotEvents().find(e => e.type === 'tool/result')!
       expect(JSON.stringify(toolResult.data)).toContain('unknown tool')
       await run.dispose()
diff --git a/packages/subagent/subagent/src/lifecycle.ts b/packages/subagent/subagent/src/lifecycle.ts
index ba2db8e62c..adeba106f6 100644
--- a/packages/subagent/subagent/src/lifecycle.ts
+++ b/packages/subagent/subagent/src/lifecycle.ts
@@ -198,6 +198,7 @@ export function createActivationObserver(
       emit('subagent/start', identity, parent)
     },
     capture: (child: Agent): void => {
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const own = child.session.snapshotEvents(boundary)
       const output = finalAssistantOutput(own)
       captured = {
diff --git a/packages/subagent/subagent/tests/continuation.spec.ts b/packages/subagent/subagent/tests/continuation.spec.ts
index f2bbd16ef5..ecaa72a347 100644
--- a/packages/subagent/subagent/tests/continuation.spec.ts
+++ b/packages/subagent/subagent/tests/continuation.spec.ts
@@ -258,6 +258,7 @@ describe('SubagentRuntime.startContinuable', () => {
     ctx.on('agent/inbox/inserted', ({ agent, message }) => {
       // Acceptance is the boundary `startContinuable` resolves at, so observe
       // the log state exactly there rather than after later microtasks.
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       enqueued.push({ id: message.id, loggedYet: hasUserText(agent.session.snapshotEvents(), 'child task') })
     })
 
@@ -450,6 +451,7 @@ describe('SubagentRuntime.startContinuable', () => {
     })).rejects.toBe(catalogFailure)
 
     await vi.waitFor(() => { expect(ctx.agents.get(childId)).toBeUndefined() })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(parent.session.snapshotEvents().filter(event => event.type === 'subagent/catalog')).toEqual([])
   })
 
@@ -529,6 +531,7 @@ describe('SubagentRuntime.startContinuable', () => {
       expect(found).toBeDefined()
       return found!
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const descriptor = child.session.snapshotEvents().find(event => event.type === 'subagent/descriptor')
 
     expect(descriptor?.data).toEqual({
@@ -564,6 +567,7 @@ describe('SubagentRuntime.startContinuable', () => {
       return found!
     })
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().find(event => event.type === 'subagent/descriptor')?.data)
       .toEqual({
         version: SUBAGENT_DESCRIPTOR_VERSION,
@@ -1155,6 +1159,7 @@ describe('continuable durability and teardown', () => {
     child.followup(createUserMessage({ content: message('accepted during flush'), source: { kind: 'user' } }))
     await vi.waitFor(() => {
       expect(adapter.requests).toHaveLength(2)
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(hasAssistantText(child.session.snapshotEvents(), 'late answer')).toBe(true)
     })
     await child.whenIdle()
@@ -1882,6 +1887,7 @@ describe('continuable review regressions', () => {
     const started = await ctx.subagents.startContinuable(startSpec(parent))
     await vi.waitFor(() => { expect(adapter.requests).toHaveLength(1) })
     const child = ctx.agents.get(started.childId)!
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const before = child.session.snapshotEvents().length
 
     const controller = new AbortController()
@@ -2343,6 +2349,7 @@ describe('continuable review regressions', () => {
 
 /** Every settlement notice this agent received, in order, as flat text. */
 function settlementNotices(agent: Agent): { sender: string; text: string; summary: string }[] {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   const logged = agent.session.snapshotEvents().flatMap(event => event.type === 'user/message' ? [event.data] : [])
   return [...logged, ...agent.inbox.nextStep, ...agent.inbox.nextTurn].flatMap((message) => {
     if (message.source.kind !== 'subagent-settled') return []
@@ -2405,6 +2412,7 @@ describe('continuable adjacent-Agent delivery', () => {
     await vi.waitFor(() => {
       expect(adapter.requests.filter(request => request.sessionId === parent.id)).toHaveLength(1)
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const delivered = parent.session.snapshotEvents().flatMap(event => event.type === 'user/message'
       && event.data.source.kind === 'agent-message' ? [event.data] : [])[0]
     expect(delivered?.id).toBe(messageId)
@@ -2699,6 +2707,7 @@ describe('continuable settlement delivery', () => {
 
     // Turn 1 closed cleanly and no later turn opened, so the cancelled queue is
     // the only record that this epoch was cut short.
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(hasUserText(child.session.snapshotEvents(), 'never runs')).toBe(false)
     await vi.waitFor(() => { expect(settlementNotices(parent)).toHaveLength(1) })
     expect(settlementNotices(parent)[0]!.text).toBe(
@@ -2867,7 +2876,9 @@ describe('continuable settlement delivery', () => {
       `Background subagent ${started.childId} was stopped before it finished.`
       + '\nIt left no closing message.',
     )
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(parent.session.snapshotEvents().some(event => event.type === 'agent/inbox/spliced')).toBe(true)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(parent.session.snapshotEvents().some(event => event.type === 'turn/start')).toBe(false)
     expect(parent.status).toBe('idle')
   })
@@ -2884,6 +2895,7 @@ describe('continuable settlement delivery', () => {
     await drained
 
     expect(settlementNotices(parent)).toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(parent.session.snapshotEvents().some(event => event.type === 'turn/start')).toBe(false)
   })
 
diff --git a/packages/subagent/tool-subagent/src/index.ts b/packages/subagent/tool-subagent/src/index.ts
index 5ca770d7d7..4e8cc4b6b1 100644
--- a/packages/subagent/tool-subagent/src/index.ts
+++ b/packages/subagent/tool-subagent/src/index.ts
@@ -619,6 +619,7 @@ export function apply(ctx: Context, config: Config, session?: Session): void {
   }
   const selectForSession = (target: Session): ModelSelectionPolicy | undefined => {
     const freshSession = target.firstLiveSeq === 0
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       && target.eventAt(SessionSeq(0))?.type !== 'session/end-seed'
     let allowedModels = subagentModelSelectionPolicy(ctx.sessionProjections, target)
     if (allowedModels === undefined) {
diff --git a/packages/subagent/tool-subagent/tests/model-selection-settings.spec.ts b/packages/subagent/tool-subagent/tests/model-selection-settings.spec.ts
index f5921a3fab..2af3149716 100644
--- a/packages/subagent/tool-subagent/tests/model-selection-settings.spec.ts
+++ b/packages/subagent/tool-subagent/tests/model-selection-settings.spec.ts
@@ -347,6 +347,7 @@ describe('SubagentModelSelectionConfig', () => {
 
     const enabledSeed = Session.create(SessionId('enabled-seed'))
     enabledSeed.append('subagent/model-selection-policy', { allowedModels: ALLOWED_MODELS })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const resumedEnabled = await createAgent(ctx, 'resumed-enabled', { seed: enabledSeed.snapshotEvents() })
     expect(selectable(ctx, resumedEnabled)).toBe(true)
 
@@ -359,6 +360,7 @@ describe('SubagentModelSelectionConfig', () => {
     expect(selectable(ctx, resumedEmpty)).toBe(false)
     expect(subagentModelSelectionPolicy(ctx.sessionProjections, resumedEmpty.session)).toBeUndefined()
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const resumedDisabled = await createAgent(ctx, 'resumed-disabled', { seed: oldSeed.snapshotEvents() })
     expect(selectable(ctx, resumedDisabled)).toBe(false)
     expect(subagentModelSelectionPolicy(ctx.sessionProjections, resumedDisabled.session)).toBeUndefined()
diff --git a/packages/terminal/terminal-bash/tests/index.spec.ts b/packages/terminal/terminal-bash/tests/index.spec.ts
index af707d8269..78216805a3 100644
--- a/packages/terminal/terminal-bash/tests/index.spec.ts
+++ b/packages/terminal/terminal-bash/tests/index.spec.ts
@@ -618,6 +618,7 @@ describe('terminal-bash plugin shape', () => {
     expect(() => { setSandboxMode(session, 'read-only') }).toThrow(
       'cannot change sandbox mode from "danger-full-access" to "read-only" while persistent terminal sessions are open or being created; wait for creation to settle and close them first',
     )
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event => event.type === 'sandbox/mode')).toHaveLength(1)
 
     const replacementFiber = await registerStubLocalBackend(ctx, () => stubLocalSession())
@@ -628,6 +629,7 @@ describe('terminal-bash plugin shape', () => {
     await ctx.terminals.kill(owner, created.sessionId)
     await ctx.terminals.kill(owner, second.sessionId)
     expect(() => { setSandboxMode(session, 'read-only') }).not.toThrow()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event => event.type === 'sandbox/mode')).toHaveLength(2)
   })
 
diff --git a/packages/test-support/agent-loop-testkit/tests/agent-loop-testkit.spec.ts b/packages/test-support/agent-loop-testkit/tests/agent-loop-testkit.spec.ts
index f4235aad18..f65454023a 100644
--- a/packages/test-support/agent-loop-testkit/tests/agent-loop-testkit.spec.ts
+++ b/packages/test-support/agent-loop-testkit/tests/agent-loop-testkit.spec.ts
@@ -96,6 +96,7 @@ describe('dsh-agent-loop-testkit', () => {
       { id: step.id, turn: 3 },
       { id: turn.id, turn: 3 },
     ])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().map(event => event.type)).toEqual([
       'agent/inbox/spliced',
       'agent/inbox/spliced',
diff --git a/packages/test-support/session-snapshot/tests/fixtures/workspace-context-compaction.ts b/packages/test-support/session-snapshot/tests/fixtures/workspace-context-compaction.ts
index f80929880d..31292f374c 100644
--- a/packages/test-support/session-snapshot/tests/fixtures/workspace-context-compaction.ts
+++ b/packages/test-support/session-snapshot/tests/fixtures/workspace-context-compaction.ts
@@ -19,11 +19,13 @@ export function apply(ctx: Context): void {
       || exec.arguments.file_path !== 'nested/task.txt') return downstream
     const agent = exec.agent
     const baseline = agent.session.surface.nodes
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       .map(seq => agent.session.snapshotEvents()[seq])
       .find(event => event?.type === 'user/message'
         && event.data.source.kind === 'agent-instructions'
         && event.data.source.baseline === true)
     if (baseline === undefined) throw new Error('workspace baseline missing before snapshot compaction')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const openTurn = agent.session.snapshotEvents().findLast(event => event.type === 'turn/start')
     if (openTurn?.type !== 'turn/start') throw new Error('workspace snapshot compaction has no open turn')
     const compactionId = CompactionId('workspace-context-fixture')
diff --git a/packages/todo/tool-todo/src/invariant.ts b/packages/todo/tool-todo/src/invariant.ts
index 21970cbcb9..d92563a06f 100644
--- a/packages/todo/tool-todo/src/invariant.ts
+++ b/packages/todo/tool-todo/src/invariant.ts
@@ -60,6 +60,7 @@ function validateEvent(event: SessionEvent, trace: TurnTrace, fail: InvariantFai
 /** Validate one existing log in a single pass and return its tail trace. */
 function seedTrace(session: Session, fail: InvariantFailure): TurnTrace {
   const trace: TurnTrace = { open: false }
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   for (const event of session.snapshotEvents()) {
     validateEvent(event, trace, fail)
     advanceTrace(trace, event)
diff --git a/packages/todo/tool-todo/tests/integration.spec.ts b/packages/todo/tool-todo/tests/integration.spec.ts
index 3384372a65..cde02c8482 100644
--- a/packages/todo/tool-todo/tests/integration.spec.ts
+++ b/packages/todo/tool-todo/tests/integration.spec.ts
@@ -63,6 +63,7 @@ describe('todo_write tool through the agent loop', () => {
     agent.followup(createUserMessage({ content: [{ type: 'text', text: 'plan a two-step task' }], source: { kind: 'user' } }))
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const log = agent.session.snapshotEvents()
     expect(findEvent(log, 'tool/call').data.name).toBe('todo_write')
     expect(findEvent(log, 'tool/result').data.message.content[0].isError).toBe(false)
@@ -91,8 +92,10 @@ describe('todo_write tool through the agent loop', () => {
     agent.followup(createUserMessage({ content: [{ type: 'text', text: 'plan then update' }], source: { kind: 'user' } }))
     await waitForIdle(ctx, agent)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const todoEvents = agent.session.snapshotEvents().filter(e => e.type === 'todo/write')
     expect(todoEvents).toHaveLength(2)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(findEvent(agent.session.snapshotEvents(), 'todo/write', 'last').data.todos).toEqual([
       { content: 'step one', status: 'completed' },
       { content: 'step two', status: 'in_progress' },
diff --git a/packages/todo/tool-todo/tests/invariant.spec.ts b/packages/todo/tool-todo/tests/invariant.spec.ts
index 4b41b6a301..0501982bdb 100644
--- a/packages/todo/tool-todo/tests/invariant.spec.ts
+++ b/packages/todo/tool-todo/tests/invariant.spec.ts
@@ -66,9 +66,11 @@ describe('todo snapshot invariants', () => {
     const session = ctx.sessions.create()
     session.append('turn/start', { turn: 1 })
     session.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const before = session.snapshotEvents()
 
     expect(() => session.append('todo/write', { todos: [] })).toThrow(/outside any open turn/)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual(before)
   })
 
diff --git a/packages/todo/tool-todo/tests/loader-composition.spec.ts b/packages/todo/tool-todo/tests/loader-composition.spec.ts
index b99909fa2a..039ba4dc1f 100644
--- a/packages/todo/tool-todo/tests/loader-composition.spec.ts
+++ b/packages/todo/tool-todo/tests/loader-composition.spec.ts
@@ -112,6 +112,7 @@ describe('tool-todo real Loader composition through cordis.yml', () => {
     })
     expect(result.isError).toBe(true)
     expect(resultText(result)).toContain('at most one task may be in_progress')
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(owner.session.snapshotEvents().some(e => e.type === 'todo/write')).toBe(false)
   }, 30_000)
 
@@ -129,6 +130,7 @@ describe('tool-todo real Loader composition through cordis.yml', () => {
       agent: owner,
     })
     expect(result.isError).toBe(false)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(owner.session.snapshotEvents().findLast(e => e.type === 'todo/write')?.data.todos).toEqual(PARALLEL_TODOS)
   }, 30_000)
 
diff --git a/packages/todo/tool-todo/tests/tool-todo.spec.ts b/packages/todo/tool-todo/tests/tool-todo.spec.ts
index a3d60f5b63..b045128eac 100644
--- a/packages/todo/tool-todo/tests/tool-todo.spec.ts
+++ b/packages/todo/tool-todo/tests/tool-todo.spec.ts
@@ -82,6 +82,7 @@ describe('dsh-tool-todo', () => {
     })
     expect(text(result)).toContain('1 pending, 1 in progress, 0 completed')
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const event = agent.session.snapshotEvents().findLast(e => e.type === 'todo/write')!
     expect(event.data.todos).toEqual(todos)
   })
@@ -92,6 +93,7 @@ describe('dsh-tool-todo', () => {
     const result = await callTodo(ctx, { todos: [{ content: '  plan the work  ', status: 'pending' }] }, { agent })
     expect(result.isError).toBe(false)
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const event = agent.session.snapshotEvents().findLast(e => e.type === 'todo/write')!
     expect(event.data.todos).toEqual([{ content: 'plan the work', status: 'pending' }])
   })
@@ -105,6 +107,7 @@ describe('dsh-tool-todo', () => {
       { content: 'b', status: 'in_progress' },
     ] }, { agent })
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const current = agent.session.snapshotEvents().findLast(e => e.type === 'todo/write')!.data.todos
     expect(current).toEqual([
       { content: 'a', status: 'completed' },
@@ -139,6 +142,7 @@ describe('dsh-tool-todo', () => {
       todos,
       counts: { pending: 1, inProgress: 2, completed: 0 },
     })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().findLast(e => e.type === 'todo/write')!.data.todos).toEqual(todos)
   })
 
@@ -155,6 +159,7 @@ describe('dsh-tool-todo', () => {
       expect(result.isError).toBe(true)
       expect(text(result)).toContain('at most one task may be in_progress')
       // A rejected call must not reach the durable log.
+      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().some(e => e.type === 'todo/write')).toBe(false)
     })
 
@@ -247,6 +252,7 @@ describe('todo/write event', () => {
     ]
     session.append('todo/write', { todos })
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const event = session.snapshotEvents().findLast(e => e.type === 'todo/write')!
     expect(event.type).toBe('todo/write')
     expect(event.data.todos).toEqual(todos)
@@ -268,6 +274,7 @@ describe('todo/write event', () => {
       { content: 'second', status: 'in_progress' },
     ] })
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const current = session.snapshotEvents().findLast(e => e.type === 'todo/write')!.data.todos
     expect(current).toEqual([
       { content: 'first', status: 'completed' },
@@ -293,10 +300,13 @@ describe('todo/write event', () => {
     original.append('turn/start', { turn: 1 })
     original.append('todo/write', { todos: [{ content: 'only', status: 'completed' }] })
     original.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const replayed = Session.create(SessionId('t4-replay'), original.snapshotEvents())
 
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(replayed.snapshotEvents().findLast(e => e.type === 'todo/write')!.data.todos)
       .toEqual([{ content: 'only', status: 'completed' }])
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(replayed.snapshotEvents(SessionLogOffset(0), original.seq)).toEqual(original.snapshotEvents())
     expect(replayed.firstLiveSeq).toBe(original.seq)
   })
diff --git a/packages/workflow/tool-workflow/src/invariant.ts b/packages/workflow/tool-workflow/src/invariant.ts
index d36174b94f..1d41b5c216 100644
--- a/packages/workflow/tool-workflow/src/invariant.ts
+++ b/packages/workflow/tool-workflow/src/invariant.ts
@@ -135,6 +135,7 @@ const install: InvariantInstaller = Object.assign((ctx: Context, fail: Invariant
 
   const seed = (session: Session): WorkflowTrace => {
     const trace: WorkflowTrace = new Map()
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     for (const event of session.snapshotEvents().filter(isWorkflowRecordEvent)) applyEvent(trace, event, fail)
     traces.set(session, trace)
     return trace
diff --git a/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts b/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts
index e3404d6c12..e752ae307c 100644
--- a/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts
+++ b/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts
@@ -146,6 +146,7 @@ describe('dsh-tool-workflow', () => {
     engine.settleRun(runId, { value: 1, stopReason: 'completed', agentsStarted: 1 })
     expect((await pending).isError).toBe(false)
     expect(engine.disposed).toBe(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().map(event => [event.type, event.data])).toEqual([
       ['tool-workflow/run-start', { runId: 'run-1', name: 'audit' }],
       ['tool-workflow/agent-start', {
@@ -166,9 +167,11 @@ describe('dsh-tool-workflow', () => {
       value: null, stopReason: 'completed', agentsStarted: 0,
     })
     await vi.waitFor(() => { expect(engine.disposed).toBe(1) })
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().map(event => event.type)).toEqual(['tool-workflow/run-start'])
     barrier.resolve(undefined)
     expect((await pending).isError).toBe(false)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().map(event => event.type)).toEqual([
       'tool-workflow/run-start', 'tool-workflow/run-end',
     ])
@@ -190,8 +193,10 @@ describe('dsh-tool-workflow', () => {
     engine.settleRun(secondId, { value: null, stopReason: 'error', error: 'child failed', agentsStarted: 1 })
     expect((await first).isError).toBe(false)
     expect((await second).isError).toBe(true)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event => event.type === 'tool-workflow/agent-start'))
       .toHaveLength(1)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event => event.type === 'tool-workflow/run-end').map(event => event.data))
       .toEqual([
         { runId: 'run-1', stopReason: 'completed' },
@@ -208,6 +213,7 @@ describe('dsh-tool-workflow', () => {
     await vi.waitFor(() => { expect(engine.requests).toHaveLength(1) })
     engine.settleRun(WorkflowRunId('run-1'), { value: null, stopReason: 'completed', agentsStarted: 0 })
     expect((await pending).isError).toBe(false)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([])
   })
 
@@ -240,6 +246,7 @@ describe('dsh-tool-workflow', () => {
     expect(engine.disposed).toBe(1)
     expect(warnings).toHaveLength(1)
     expect(warnings[0]).toContain(failedType)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const types = session.snapshotEvents().map(event => event.type)
     const expectedPrefixes = {
       'tool-workflow/run-start': [],
diff --git a/scripts/oxlint-contract.spec.ts b/scripts/oxlint-contract.spec.ts
index 1141067ad2..f358f71d9c 100644
--- a/scripts/oxlint-contract.spec.ts
+++ b/scripts/oxlint-contract.spec.ts
@@ -254,6 +254,59 @@ export const longProbe = 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 +
     }
   }, 90_000)
 
+  it('allows waived Session history reads while rejecting new reads and unrelated deprecations', async () => {
+    const suffix = randomUUID()
+    const configPath = await writeContractConfig(suffix)
+    const path = join(repositoryRoot, 'scripts', `oxlint-contract-${suffix}.ts`)
+    const existing = `import { Session, SessionSeq } from '@deepseek-ai/dsh-session'
+
+export function existingReads(session: Session): void {
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
+  session.snapshotEvents()
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
+  session.eventAt(SessionSeq(0))
+  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
+  session.ownEvents()
+}
+`
+    const added = `
+/** @deprecated Use the replacement API. */
+function oldApi(): void {}
+
+export function newReads(session: Session): void {
+  session.snapshotEvents()
+  session.eventAt(SessionSeq(0))
+  session.ownEvents()
+  oldApi()
+}
+`
+
+    try {
+      await writeFile(path, existing)
+      const args = ['--config', relative(repositoryRoot, configPath), '--format', 'unix', relative(repositoryRoot, path)]
+      const allowed = runRepositoryOxlint(args)
+      expect(allowed.error).toBeUndefined()
+      expect(allowed.signal).toBeNull()
+      expect(allowed.status, normalizedOutput(allowed)).toBe(0)
+
+      await writeFile(path, existing + added)
+      const rejected = runRepositoryOxlint(args)
+      const output = normalizedOutput(rejected)
+      expect(rejected.error).toBeUndefined()
+      expect(rejected.signal).toBeNull()
+      expect(rejected.status, output).toBe(1)
+      expect(output.match(/typescript\(no-deprecated\)/g), output).toHaveLength(4)
+      for (const method of ['snapshotEvents', 'eventAt', 'ownEvents', 'oldApi']) {
+        expect(output).toContain(`\`${method}\` is deprecated`)
+      }
+    } finally {
+      await Promise.all([
+        rm(path, { force: true }),
+        rm(configPath, { force: true }),
+      ])
+    }
+  }, 90_000)
+
   it('accepts an ignored-only staged selection', () => {
     const result = runOxlint([
       '--fix',
diff --git a/scripts/python-snapshot-workflow-order.spec.ts b/scripts/python-snapshot-workflow-order.spec.ts
index 964244f5da..84f401c51b 100644
--- a/scripts/python-snapshot-workflow-order.spec.ts
+++ b/scripts/python-snapshot-workflow-order.spec.ts
@@ -82,6 +82,7 @@ describe('advanced Python snapshot workflow ordering', () => {
     const child = await entered.promise
     expect(child.id).toBe(run.id)
     expect(adapter.requests).toHaveLength(0)
+    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().some(event => event.type === 'subagent/descriptor')).toBe(false)
     parent.session.append('tool-workflow/agent-start', {
       runId: WorkflowRunId('run'), seq: 1, label: 'workflow-child', childId: child.id,

From 8f986c8da63a212bfa6c64e4d58bbcafbc03a63e Mon Sep 17 00:00:00 2001
From: _Kerman <kermanx@qq.com>
Date: Wed, 9 Sep 2026 12:55:32 +0800
Subject: [PATCH 04/32] chore(session): scope history reader exemptions to
 tests

---
 ...-synchronous-session-event-reads.i18n.yaml |  4 +-
 ...precate-synchronous-session-event-reads.md |  8 ++-
 ...cate-synchronous-session-event-reads.zh.md |  8 ++-
 .oxlintrc.json                                | 13 ++++
 .../headless/tests/coding-task.e2e.ts         |  1 -
 .../profiles/headless/tests/compaction.e2e.ts |  1 -
 .../profiles/headless/tests/full-loop.e2e.ts  |  1 -
 .../tests/profiles/headless/tests/ptc.e2e.ts  |  3 -
 .../profiles/headless/tests/resume.e2e.ts     |  1 -
 .../profiles/headless/tests/todo-write.e2e.ts |  1 -
 .../tests/chat-continuous-conversation.e2e.ts |  1 -
 apps/web/tests/chat-long-interactions.e2e.ts  | 11 ---
 apps/web/tests/chat-scroll-fixture.ts         |  1 -
 apps/web/tests/clickable-links-gallery.e2e.ts |  1 -
 apps/web/tests/complex-history.perf.ts        |  1 -
 apps/web/tests/feedback-release.e2e.ts        |  1 -
 .../tests/goal-command-presentation.e2e.ts    |  1 -
 apps/web/tests/markdown-cjk-strong.e2e.ts     |  1 -
 apps/web/tests/markdown-images.e2e.ts         |  1 -
 .../tests/markdown-inline-code-links.e2e.ts   |  1 -
 apps/web/tests/markdown-wide-table.e2e.ts     |  1 -
 apps/web/tests/math-rendering.e2e.ts          |  1 -
 apps/web/tests/minimal-preset.snapshot.ts     |  1 -
 apps/web/tests/preset-migration.snapshot.ts   |  1 -
 apps/web/tests/produced-file-mentions.e2e.ts  |  1 -
 apps/web/tests/produced-files.e2e.ts          |  1 -
 apps/web/tests/reference-composer.e2e.ts      |  2 -
 apps/web/tests/scaffold.ts                    |  2 -
 apps/web/tests/schedule-after.e2e.ts          |  8 ---
 apps/web/tests/seeded-history.e2e.ts          |  1 -
 apps/web/tests/settings-chrome.e2e.ts         |  4 --
 apps/web/tests/subagent-interrupt-ui.e2e.ts   |  1 -
 apps/web/tests/subagent-interrupt.e2e.ts      |  2 -
 packages/acp/acp/tests/bridge.spec.ts         |  2 -
 packages/acp/acp/tests/turns.spec.ts          |  5 --
 .../commands-queue-attachment.host.spec.ts    |  1 -
 .../tests/session-cold.host.spec.ts           |  3 -
 .../tests/session-fork.host.spec.ts           |  6 --
 .../tests/session-projections.host.spec.ts    |  3 -
 .../tests/session-rename.host.spec.ts         |  1 -
 .../tests/transport.host.spec.ts              |  1 -
 .../spill-policy-terminal.client.spec.ts      |  1 -
 .../tests/command-compact.spec.ts             |  1 -
 .../tests/loader-composition.spec.ts          |  1 -
 .../tests/compaction-basic.spec.ts            | 29 --------
 .../tests/compaction-loop-repro.spec.ts       | 12 ----
 .../tests/manual-compaction.spec.ts           | 29 --------
 .../tests/tool-result-pruner.spec.ts          |  4 --
 .../compaction/tests/compaction.spec.ts       |  3 -
 .../compaction/tests/invariant.spec.ts        |  8 ---
 .../compaction/tests/tool-pairing.spec.ts     |  1 -
 .../tests/agent-instructions.e2e.ts           |  3 -
 .../tests/agent-instructions.spec.ts          | 34 ---------
 .../tests/loader-composition.spec.ts          |  1 -
 .../tests/session-reference.spec.ts           |  4 --
 .../time-context/tests/time-context.spec.ts   | 13 ----
 .../tmux-context/tests/tmux-context.spec.ts   |  2 -
 .../agent-loop/tests/agent-initiator.spec.ts  |  1 -
 packages/core/agent-loop/tests/agent.spec.ts  |  4 --
 packages/core/agent-loop/tests/cancel.spec.ts | 42 -----------
 .../tests/contract-regressions.spec.ts        | 40 -----------
 .../agent-loop/tests/coverage-edges.spec.ts   | 18 -----
 packages/core/agent-loop/tests/inbox.spec.ts  |  4 --
 .../agent-loop/tests/interception.spec.ts     |  1 -
 packages/core/agent-loop/tests/loop.spec.ts   | 69 -------------------
 .../core/agent-loop/tests/properties.spec.ts  |  4 --
 .../agent-loop/tests/request-cache.e2e.ts     |  1 -
 .../agent-loop/tests/request-error.spec.ts    |  6 --
 .../agent-loop/tests/request-freeze.spec.ts   |  3 -
 .../tests/request-reconstruction.spec.ts      | 41 -----------
 packages/core/agent-loop/tests/resume.spec.ts |  9 ---
 .../agent-loop/tests/scope-lifecycle.spec.ts  |  3 -
 .../tests/system-prompt-admission.spec.ts     | 20 ------
 .../core/agent-loop/tests/tool-calls.spec.ts  |  1 -
 .../core/agent-loop/tests/tool-order.spec.ts  |  8 ---
 .../core/agent/tests/consumed-work.spec.ts    | 13 ----
 packages/core/session/README.i18n.yaml        |  4 +-
 packages/core/session/README.md               |  2 +-
 packages/core/session/README.zh.md            |  2 +-
 .../session/tests/canonical-envelopes.spec.ts |  5 --
 .../core/session/tests/derived-cache.spec.ts  |  1 -
 packages/core/session/tests/fork.spec.ts      | 13 ----
 packages/core/session/tests/invariant.spec.ts |  2 -
 .../core/session/tests/properties.spec.ts     |  8 ---
 .../core/session/tests/request-header.spec.ts |  1 -
 .../core/session/tests/sequence-types.spec.ts |  4 --
 packages/core/session/tests/session.spec.ts   | 53 --------------
 packages/core/session/tests/surface.spec.ts   | 20 ------
 packages/core/tools/tests/invariant.spec.ts   |  1 -
 packages/core/tools/tests/ptc.spec.ts         |  1 -
 .../agent-team/tests/invariant.spec.ts        |  2 -
 .../agent-team/tests/persistence.spec.ts      |  3 -
 .../agent-team/tests/team.spec.ts             |  7 --
 .../agent-team/tests/test-session-query.ts    |  1 -
 .../tool-agent-team/tests/tool-team.spec.ts   |  1 -
 .../tests/command-feedback.spec.ts            | 10 ---
 .../tests/loader-composition.spec.ts          |  4 --
 .../message-feedback/tests/helpers.ts         |  1 -
 .../tests/message-feedback.spec.ts            |  9 ---
 packages/fs/tool-fs/tests/fs-tools.e2e.ts     |  1 -
 .../fs/tool-present/tests/present.spec.ts     |  5 --
 .../command-goal/tests/command-goal.spec.ts   |  4 --
 .../tests/goal-round-driver.spec.ts           | 10 ---
 packages/goal/goal/tests/goal.spec.ts         | 28 --------
 packages/goal/goal/tests/projection.spec.ts   |  1 -
 .../goal/tool-goal/tests/tool-goal.spec.ts    |  2 -
 .../tests/repeat-tool-reminder.spec.ts        |  3 -
 .../hooks/hook-protocol/tests/events.spec.ts  |  9 ---
 .../hooks-claude-code/tests/bridge.spec.ts    |  1 -
 .../hooks-claude-code/tests/coverage-cases.ts |  1 -
 .../hooks/hooks-codex/tests/bridge.spec.ts    |  1 -
 .../hooks/hooks-codex/tests/coverage-cases.ts |  1 -
 .../commands/tests/commands.spec.ts           |  5 --
 .../tests/permission-presets.spec.ts          | 18 -----
 .../tests/projection.spec.ts                  |  4 --
 .../user-approval/tests/approval.spec.ts      |  9 ---
 .../tests/loader-composition.spec.ts          |  1 -
 packages/llm/llm-retry/tests/retry.spec.ts    | 25 -------
 .../tests/transport-recovery.spec.ts          | 17 -----
 .../context-breakdown-projection.spec.ts      |  6 --
 .../llm/token-meter/tests/token-meter.spec.ts |  6 --
 .../plan/plan-mode/tests/integration.spec.ts  |  6 --
 .../plan/plan-mode/tests/plan-mode.spec.ts    | 39 -----------
 .../plan/plan-mode/tests/projection.spec.ts   |  1 -
 .../preset/agent-presets/tests/remote.spec.ts |  1 -
 .../sandbox-policy/tests/policy.spec.ts       |  2 -
 .../schedule/schedule/tests/invariant.spec.ts |  5 --
 .../schedule/tests/jsonl-restart.spec.ts      |  2 -
 .../schedule/schedule/tests/runtime.spec.ts   | 11 ---
 .../schedule/schedule/tests/tools.spec.ts     |  9 ---
 .../tests/loader-composition.host.spec.ts     |  1 -
 .../session-query/tests/session-query.spec.ts |  2 -
 .../tests/tool-session-query.spec.ts          |  1 -
 .../tests/feedback-composition.spec.ts        |  2 -
 .../session-log-deepseek/tests/upload.spec.ts |  4 --
 .../tests/multi-edge-publication.spec.ts      |  1 -
 .../tests/v2-system-migration.spec.ts         |  6 --
 .../session-telemetry-otel/tests/otel.spec.ts | 15 ----
 .../session-telemetry/tests/redact.spec.ts    |  2 -
 .../session-telemetry/tests/telemetry.spec.ts |  8 ---
 .../tests/provider.spec.ts                    |  1 -
 .../session-title-llm/tests/llm.spec.ts       |  4 --
 .../session-title/tests/projection.spec.ts    |  1 -
 .../session-title/tests/provider.spec.ts      |  3 -
 .../session-title/tests/rename.spec.ts        |  3 -
 .../tests/service-contracts.spec.ts           |  6 --
 .../session-title/tests/session-title.spec.ts |  5 --
 .../shell/tool-bash/tests/integration.spec.ts |  1 -
 packages/shell/tool-bash/tests/tools.spec.ts  |  1 -
 .../skill/tool-skill/tests/tool-skill.spec.ts |  1 -
 .../tests/multi-subagent.spec.ts              |  4 --
 .../tests/subagent-fork-in-process.spec.ts    |  8 ---
 .../tests/inheritance.spec.ts                 | 13 ----
 .../tests/preset-inheritance.spec.ts          |  1 -
 .../tests/structured.spec.ts                  |  6 --
 .../tests/subagent-in-process-driver.spec.ts  |  8 ---
 .../tests/spawn-in-process.e2e.ts             |  1 -
 .../tests/subagent-spawn-in-process.spec.ts   |  3 -
 .../subagent/tests/continuation.spec.ts       | 12 ----
 .../tests/model-selection-settings.spec.ts    |  2 -
 .../terminal-bash/tests/index.spec.ts         |  2 -
 .../tests/agent-loop-testkit.spec.ts          |  1 -
 .../fixtures/workspace-context-compaction.ts  |  2 -
 .../todo/tool-todo/tests/integration.spec.ts  |  3 -
 .../todo/tool-todo/tests/invariant.spec.ts    |  2 -
 .../tests/loader-composition.spec.ts          |  2 -
 .../todo/tool-todo/tests/tool-todo.spec.ts    | 10 ---
 .../tool-workflow/tests/tool-workflow.spec.ts |  7 --
 scripts/oxlint-contract.spec.ts               | 54 +++++++++++----
 .../python-snapshot-workflow-order.spec.ts    |  1 -
 170 files changed, 72 insertions(+), 1070 deletions(-)

diff --git a/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.i18n.yaml b/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.i18n.yaml
index 51e978ca70..7a61bc540e 100644
--- a/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.i18n.yaml
+++ b/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write .agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md
-2026-09-09-deprecate-synchronous-session-event-reads.md: 0fcbfbc2e21792f67d1bdbe6d32ac3106338ac45
-2026-09-09-deprecate-synchronous-session-event-reads.zh.md: d1f22b483380a7a38a5cd1208815c5fc0ae25348
+2026-09-09-deprecate-synchronous-session-event-reads.md: 1420227daf9a410e7db6a7a685bcf4433d7d7b0b
+2026-09-09-deprecate-synchronous-session-event-reads.zh.md: e546337bcb15cf6682935729de37aab0c579d2a2
diff --git a/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md b/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md
index 0fcbfbc2e2..1420227daf 100644
--- a/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md
+++ b/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md
@@ -16,6 +16,8 @@ All operations that synchronously read arbitrary positions or ranges of Session
 
 The three methods carry this rule in `@deprecated` JSDoc. This is an API-use decision; the current Session implementation still retains the complete event sequence in memory.
 
+Repository test files may call these three readers to inspect emitted events and exercise Session history behavior. Their existing lint override allows `snapshotEvents`, `eventAt`, and `ownEvents`; all other deprecated names remain errors. This allowance also covers unrelated declarations with the same three names under the current linter. It does not apply to production source or ordinary repository scripts.
+
 ### State needed after resume
 
 Design durable event fields and Session projections together so each domain can reconstruct the state its consumers need. Restore that state during resume, then maintain it incrementally from newly committed events. After resume, ordinary logic reads the projection or processes the delivered current event instead of looking back through historical events. Reading already-maintained projection state synchronously does not require arbitrary access to the event log.
@@ -34,13 +36,15 @@ Fork and a small number of operations may genuinely need a complete historical s
 
 **Require every existing caller to migrate immediately.** Existing logic may defer migration under this decision. Preventing new dependencies bounds the remaining work without making every existing consumer part of the same change.
 
-**Disable deprecation lint for these methods or whole files.** Such exemptions also admit new calls. Line-scoped waivers make the existing migration debt explicit while retaining the native type-aware rule for new reads.
+**Disable deprecation lint throughout test files or exempt production readers by name.** Tests only need the three reader names; other deprecated APIs must remain errors. Production code retains the prohibition on new synchronous reads.
+
+**Add a separate test-only reader API.** The three existing readers already expose the observations these tests need. Wrapping them adds an API and production-import checks without changing those observations.
 
 ## Consequences
 
 New domain behavior must make its event data and projected state sufficient for resumed execution. User-requested history may still load progressively, and genuine full-history operations still have a storage path to design. This decision does not claim that resume or fork already avoids loading the complete log.
 
-Existing calls carry line-scoped `typescript/no-deprecated` waivers with a migration-deferral reason. The rule stays enabled for new calls and unrelated deprecated APIs. Remove a waiver when its call migrates; copying a waiver to a new call violates this policy. The executable lint check exercises all three readers with and without waivers, plus an unrelated deprecated API. Documentation checks verify the source-equivalent API declarations and bilingual records.
+Existing calls outside test files carry line-scoped `typescript/no-deprecated` waivers with a migration-deferral reason. Remove a waiver when its call migrates; copying a waiver to a new production call violates this policy. The executable lint check accepts test reads and existing waived reads, rejects unwaived production reads, and rejects unrelated deprecated APIs in tests. Documentation checks verify the source-equivalent API declarations and bilingual records.
 
 ## Related decisions
 
diff --git a/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.zh.md b/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.zh.md
index d1f22b4833..e546337bcb 100644
--- a/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.zh.md
+++ b/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.zh.md
@@ -16,6 +16,8 @@ Status: implemented
 
 这三个方法通过 `@deprecated` JSDoc 声明该规则。这是 API 使用决策；当前 Session 实现仍在内存中保留完整事件序列。
 
+仓库测试文件可以调用这三个读取方法，以检查已发出的事件并验证 Session 历史行为。现有测试 lint override 允许 `snapshotEvents`、`eventAt` 和 `ownEvents`，其他弃用名称仍报错。在当前 linter 下，此豁免也覆盖使用这三个名称的其他声明。它不适用于生产源码或普通仓库脚本。
+
 ### 恢复后需要的状态
 
 结合设计持久事件字段与会话投影，使每个领域都能重建其消费方所需的状态。在恢复期间还原这些状态，随后通过新提交的事件增量维护。恢复后，普通逻辑读取投影或处理当前收到的事件，而不是回头查找历史事件。同步读取已经维护好的投影状态，不需要任意访问事件日志。
@@ -34,13 +36,15 @@ fork 等少数操作可能确实需要完整历史序列或继承前缀。它们
 
 **要求立即迁移所有现有调用方。** 本决策允许现有逻辑推迟迁移。禁止新增依赖可以限制剩余工作规模，无需将每个现有消费方都纳入同一次修改。
 
-**为这些方法或整个文件禁用弃用 lint。** 这种豁免也会放过新增调用。逐行豁免明确标出已有的迁移负担，同时继续由原生类型感知规则检查新增读取。
+**在整个测试文件中禁用弃用 lint，或按名称豁免生产代码中的读取方法。** 测试只需要这三个读取方法名；其他弃用 API 必须继续报错。生产代码仍禁止新增同步读取。
+
+**添加单独的测试专用读取 API。** 三个现有读取方法已经提供这些测试所需的观察结果。包装它们会增加一个 API 及生产代码导入检查，却不会改变这些观察结果。
 
 ## 后果
 
 新增领域行为必须使其事件数据与投影状态足以支持恢复后的执行。用户请求的历史仍可渐进式加载，确实需要完整历史的操作仍需设计存储读取路径。本决策不表示恢复或 fork 已经能够避免加载完整日志。
 
-现有调用带有逐行的 `typescript/no-deprecated` 豁免，并说明暂缓迁移的理由。该规则对新增调用及其他已弃用 API 继续生效。调用迁移后应删除豁免；将豁免复制到新增调用违反本策略。实际执行 lint 的检查覆盖三个读取方法有无豁免的情况，以及另一个已弃用 API。文档检查校验与源码一致的 API 声明及双语记录。
+测试文件之外的现有调用带有逐行的 `typescript/no-deprecated` 豁免，并说明暂缓迁移的理由。调用迁移后应删除豁免；将豁免复制到新增生产调用违反本策略。实际执行 lint 的检查允许测试读取和已有豁免调用，拒绝未豁免的生产读取，并拒绝测试中其他已弃用 API。文档检查校验与源码一致的 API 声明及双语记录。
 
 ## 相关决策
 
diff --git a/.oxlintrc.json b/.oxlintrc.json
index 1f11a9e989..348b057bc3 100644
--- a/.oxlintrc.json
+++ b/.oxlintrc.json
@@ -203,6 +203,19 @@
         "scripts/**/*.spec.{ts,tsx}"
       ],
       "rules": {
+        // Session assertions inspect the log; other deprecated APIs remain errors.
+        "typescript/no-deprecated": [
+          "error",
+          {
+            "allow": [
+              {
+                "from": "file",
+                "name": ["snapshotEvents", "eventAt", "ownEvents"],
+                "path": "packages/core/session/src/index.ts"
+              }
+            ]
+          }
+        ],
         "typescript/no-invalid-void-type": "error",
         "typescript/no-non-null-assertion": "off", // Assertions commonly follow an expect() that proves presence.
         "typescript/no-unnecessary-condition": "off",
diff --git a/apps/cli/tests/profiles/headless/tests/coding-task.e2e.ts b/apps/cli/tests/profiles/headless/tests/coding-task.e2e.ts
index 4b78389bb3..bb0b4297b8 100644
--- a/apps/cli/tests/profiles/headless/tests/coding-task.e2e.ts
+++ b/apps/cli/tests/profiles/headless/tests/coding-task.e2e.ts
@@ -67,7 +67,6 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('coding task: fix a failing test
     await waitForIdle(ctx, agent)
 
     // The agent claims success…
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const summary = finalText(agent.session.snapshotEvents()).toLowerCase()
     expect(summary.length).toBeGreaterThan(0)
 
diff --git a/apps/cli/tests/profiles/headless/tests/compaction.e2e.ts b/apps/cli/tests/profiles/headless/tests/compaction.e2e.ts
index 263b794778..6e3f46c266 100644
--- a/apps/cli/tests/profiles/headless/tests/compaction.e2e.ts
+++ b/apps/cli/tests/profiles/headless/tests/compaction.e2e.ts
@@ -56,7 +56,6 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('compaction: a long session compa
       }], source: { kind: 'user' } }))
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = agent.session.snapshotEvents()
 
     // A compaction ran: the start…end bracket landed in the real log.
diff --git a/apps/cli/tests/profiles/headless/tests/full-loop.e2e.ts b/apps/cli/tests/profiles/headless/tests/full-loop.e2e.ts
index 74db5cc44a..6816c60f61 100644
--- a/apps/cli/tests/profiles/headless/tests/full-loop.e2e.ts
+++ b/apps/cli/tests/profiles/headless/tests/full-loop.e2e.ts
@@ -34,7 +34,6 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('full loop: real model + real bas
     agent.followup(createUserMessage({ content: [{ type: 'text', text: 'Run `echo e2e-ok` with the bash tool and tell me its exact output.' }], source: { kind: 'user' } }))
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = agent.session.snapshotEvents()
     const calls = events.filter(event => event.type === 'tool/call')
     expect(calls.length).toBeGreaterThan(0)
diff --git a/apps/cli/tests/profiles/headless/tests/ptc.e2e.ts b/apps/cli/tests/profiles/headless/tests/ptc.e2e.ts
index 557b632132..c666871584 100644
--- a/apps/cli/tests/profiles/headless/tests/ptc.e2e.ts
+++ b/apps/cli/tests/profiles/headless/tests/ptc.e2e.ts
@@ -366,7 +366,6 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('PTC mode: real model writes a pr
         + 'and return only the joined string.',
       }], source: { kind: 'user' } }))
     await waitForIdle(ctx, agent)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events: readonly SessionEvent[] = agent.session.snapshotEvents()
 
     // The wire contract: every request this session made offered EXACTLY ONE
@@ -419,12 +418,10 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('PTC mode: real model writes a pr
       }], source: { kind: 'user' } }))
     await waitForIdle(ctx, handle.agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events: readonly SessionEvent[] = handle.agent.session.snapshotEvents()
     const dispatch = events.find(event => event.type === 'tool/ptc-dispatch' && event.data.name === 'read')
     const outerResult = events.find(event => event.type === 'tool/result')
     const workspaceContext = await vi.waitFor(() => {
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const splice = handle.agent.session.snapshotEvents().findLast(event => event.type === 'agent/inbox/spliced'
         && event.data.inserted.some(message => message.source.kind === 'agent-instructions'))
       const inserted = splice?.type === 'agent/inbox/spliced'
diff --git a/apps/cli/tests/profiles/headless/tests/resume.e2e.ts b/apps/cli/tests/profiles/headless/tests/resume.e2e.ts
index ce8c0bd91d..579b082906 100644
--- a/apps/cli/tests/profiles/headless/tests/resume.e2e.ts
+++ b/apps/cli/tests/profiles/headless/tests/resume.e2e.ts
@@ -63,7 +63,6 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('resume: continue a persisted ses
     await waitForIdle(ctx, resumed)
 
     // The model recalls it — only possible from the resumed history.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(finalText(resumed.session.snapshotEvents())).toContain(SECRET)
   }, 180_000)
 })
diff --git a/apps/cli/tests/profiles/headless/tests/todo-write.e2e.ts b/apps/cli/tests/profiles/headless/tests/todo-write.e2e.ts
index 7a201279f8..4ff5fef99c 100644
--- a/apps/cli/tests/profiles/headless/tests/todo-write.e2e.ts
+++ b/apps/cli/tests/profiles/headless/tests/todo-write.e2e.ts
@@ -37,7 +37,6 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('todo_write: real model records a
       + 'Send all three in one todo_write call, then reply with the single word DONE.' }], source: { kind: 'user' } }))
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = agent.session.snapshotEvents()
 
     // The model actually called the tool.
diff --git a/apps/web/tests/chat-continuous-conversation.e2e.ts b/apps/web/tests/chat-continuous-conversation.e2e.ts
index 062f5bceac..c539a96601 100644
--- a/apps/web/tests/chat-continuous-conversation.e2e.ts
+++ b/apps/web/tests/chat-continuous-conversation.e2e.ts
@@ -334,7 +334,6 @@ describe('web e2e: continuous conversation grown through the composer', () => {
     }
 
     if (sessionId === undefined) throw new Error('continuous conversation completed no turn')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(scaffold.ctx.agents.get(sessionId)?.session.snapshotEvents().filter(event => (
       event.type === 'turn/end' && event.data.reason.kind === 'completed'
     ))).toHaveLength(TURN_COUNT)
diff --git a/apps/web/tests/chat-long-interactions.e2e.ts b/apps/web/tests/chat-long-interactions.e2e.ts
index fbc0424c8c..17e639814c 100644
--- a/apps/web/tests/chat-long-interactions.e2e.ts
+++ b/apps/web/tests/chat-long-interactions.e2e.ts
@@ -184,17 +184,12 @@ describe('web e2e: long Chat interaction contract', () => {
     const toolAssistantMarker = FIXTURE.markers.assistant(TOOL_TURN)
     const toolMarker1 = FIXTURE.markers.tool(TOOL_TURN, 1)
     const toolMarker2 = FIXTURE.markers.tool(TOOL_TURN, 2)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const toolUserEvent = requiredEvent(source.session.snapshotEvents(), 'user/message', toolUserMarker)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const toolAssistantEvent = requiredEvent(source.session.snapshotEvents(), 'assistant/message', toolAssistantMarker)
     const branchUserMarker = FIXTURE.markers.user(BRANCH_TURN)
     const branchAssistantMarker = FIXTURE.markers.assistant(BRANCH_TURN)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const branchUserEvent = requiredEvent(source.session.snapshotEvents(), 'user/message', branchUserMarker)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const branchAssistantEvent = requiredEvent(source.session.snapshotEvents(), 'assistant/message', branchAssistantMarker)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const boundary = source.session.snapshotEvents().find((event): event is SessionEvent<'turn/end'> => (
       event.type === 'turn/end' && event.data.turn === BRANCH_TURN
     ))
@@ -320,11 +315,8 @@ describe('web e2e: long Chat interaction contract', () => {
       .find(agent => agent.session.header.parentSession === SessionId(SESSION_ID))
     if (child === undefined) throw new Error('message branch did not create a child session')
     expect(child.session.inheritedEventCount).toBe(boundary.seq + 1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().some(event => carries(event, branchAssistantMarker))).toBe(true)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().some(event => carries(event, FIXTURE.markers.user(BRANCH_TURN + 1)))).toBe(false)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().some(event => carries(event, FIXTURE.markers.user(FIXTURE.turns)))).toBe(false)
 
     const currentCrumb = page.getByRole('navigation', { name: 'Session hierarchy' })
@@ -342,13 +334,10 @@ describe('web e2e: long Chat interaction contract', () => {
     await expect.poll(() => page.locator('[data-streaming="true"]').count(), { timeout: 15_000 }).toBe(0)
     expect(await composer.textContent()).toBe('')
     expect(await composer.isEnabled()).toBe(true)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(source.session.snapshotEvents().some(event => carries(event, CONTINUE_PROMPT))).toBe(false)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().filter(event => (
       event.type === 'user/message' && carries(event, CONTINUE_PROMPT)
     ))).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const lastTurnEnd = child.session.snapshotEvents().findLast((event): event is SessionEvent<'turn/end'> => (
       event.type === 'turn/end'
     ))
diff --git a/apps/web/tests/chat-scroll-fixture.ts b/apps/web/tests/chat-scroll-fixture.ts
index bd060c57ff..34ebcc8d1b 100644
--- a/apps/web/tests/chat-scroll-fixture.ts
+++ b/apps/web/tests/chat-scroll-fixture.ts
@@ -178,7 +178,6 @@ function fixtureLog(session: Session): string {
       isSeeded: false,
       delegationDepth: 0,
     }),
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ...session.snapshotEvents().map(event => JSON.stringify(event)),
     '',
   ].join('\n')
diff --git a/apps/web/tests/clickable-links-gallery.e2e.ts b/apps/web/tests/clickable-links-gallery.e2e.ts
index 09423cd4ac..ea3b86dbb5 100644
--- a/apps/web/tests/clickable-links-gallery.e2e.ts
+++ b/apps/web/tests/clickable-links-gallery.e2e.ts
@@ -287,7 +287,6 @@ function galleryFixture(imageUrl: string): string {
       isSeeded: false,
       delegationDepth: 0,
     }),
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ...session.snapshotEvents().map(event => JSON.stringify({
       ...event,
       time: eventTimeOrigin + event.seq * 1_000,
diff --git a/apps/web/tests/complex-history.perf.ts b/apps/web/tests/complex-history.perf.ts
index bc909b45f5..faa0146134 100644
--- a/apps/web/tests/complex-history.perf.ts
+++ b/apps/web/tests/complex-history.perf.ts
@@ -329,7 +329,6 @@ function fixtureLog(session: Session): string {
   }
   return [
     JSON.stringify(header),
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ...session.snapshotEvents().map(event => JSON.stringify(event)),
     '',
   ].join('\n')
diff --git a/apps/web/tests/feedback-release.e2e.ts b/apps/web/tests/feedback-release.e2e.ts
index 30e12833ee..b63f3c6213 100644
--- a/apps/web/tests/feedback-release.e2e.ts
+++ b/apps/web/tests/feedback-release.e2e.ts
@@ -275,7 +275,6 @@ describe.each(MODE === 'record' ? ['deepseek-official'] : ['deepseek-official',
     expect(captured()).toHaveLength(releasedCount)
     await input.press('Enter')
     const findHeaderless = () => scaffold.ctx.sessions.list().find(session => session.id !== sessionId
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       && session.snapshotEvents().some(event => event.type === 'feedback/record'))
     // A command-only session keeps the hero view; its durable event confirms submission.
     await expect.poll(findHeaderless, { timeout: 10_000 }).toBeDefined()
diff --git a/apps/web/tests/goal-command-presentation.e2e.ts b/apps/web/tests/goal-command-presentation.e2e.ts
index 157dbf947e..70ad37a799 100644
--- a/apps/web/tests/goal-command-presentation.e2e.ts
+++ b/apps/web/tests/goal-command-presentation.e2e.ts
@@ -124,7 +124,6 @@ describe('web e2e: /goal human transcript presentation', () => {
 
     const sessions = scaffold.ctx.sessions.list()
     expect(sessions).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const persisted = sessions[0]?.snapshotEvents() ?? []
     expect(persisted.filter(event => event.type === 'command/run' || event.type === 'command/done')
       .map(event => event.type)).toEqual(['command/run', 'command/done'])
diff --git a/apps/web/tests/markdown-cjk-strong.e2e.ts b/apps/web/tests/markdown-cjk-strong.e2e.ts
index 40994debcb..237bbd9d3d 100644
--- a/apps/web/tests/markdown-cjk-strong.e2e.ts
+++ b/apps/web/tests/markdown-cjk-strong.e2e.ts
@@ -79,7 +79,6 @@ function markdownFixture(): string {
       isSeeded: false,
       delegationDepth: 0,
     }),
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ...session.snapshotEvents().map(event => JSON.stringify({
       ...event,
       time: eventTimeOrigin + event.seq * 1_000,
diff --git a/apps/web/tests/markdown-images.e2e.ts b/apps/web/tests/markdown-images.e2e.ts
index f7f369096b..b8f18c6c67 100644
--- a/apps/web/tests/markdown-images.e2e.ts
+++ b/apps/web/tests/markdown-images.e2e.ts
@@ -144,7 +144,6 @@ function markdownImageFixture(remoteUrl: string, outsidePath: string): string {
     // the stats line renders its LLM segment only while the step's measured
     // milliseconds exceed zero, so a fixture that leaves the times unset lets
     // the replay's own speed decide whether the golden matches.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ...session.snapshotEvents().map(event => JSON.stringify({
       ...event,
       time: eventTimeOrigin + event.seq * 1_000,
diff --git a/apps/web/tests/markdown-inline-code-links.e2e.ts b/apps/web/tests/markdown-inline-code-links.e2e.ts
index ac7be4e205..62bbf589aa 100644
--- a/apps/web/tests/markdown-inline-code-links.e2e.ts
+++ b/apps/web/tests/markdown-inline-code-links.e2e.ts
@@ -76,7 +76,6 @@ function markdownFixture(linkUrl: string): string {
       isSeeded: false,
       delegationDepth: 0,
     }),
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ...session.snapshotEvents().map(event => JSON.stringify({
       ...event,
       time: eventTimeOrigin + event.seq * 1_000,
diff --git a/apps/web/tests/markdown-wide-table.e2e.ts b/apps/web/tests/markdown-wide-table.e2e.ts
index 9607969fef..09f980ab5c 100644
--- a/apps/web/tests/markdown-wide-table.e2e.ts
+++ b/apps/web/tests/markdown-wide-table.e2e.ts
@@ -142,7 +142,6 @@ function wideTableFixture(): string {
   return [
     JSON.stringify(header),
     // Spaced event times, as the sibling markdown fixtures pin them.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ...session.snapshotEvents().map(event => JSON.stringify({
       ...event,
       time: eventTimeOrigin + event.seq * 1_000,
diff --git a/apps/web/tests/math-rendering.e2e.ts b/apps/web/tests/math-rendering.e2e.ts
index 1363eb35cf..c826d5aff2 100644
--- a/apps/web/tests/math-rendering.e2e.ts
+++ b/apps/web/tests/math-rendering.e2e.ts
@@ -80,7 +80,6 @@ function mathFixture(): string {
       isSeeded: false,
       delegationDepth: 0,
     }),
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ...session.snapshotEvents().map(event => JSON.stringify({
       ...event,
       time: eventTimeOrigin + event.seq * 1_000,
diff --git a/apps/web/tests/minimal-preset.snapshot.ts b/apps/web/tests/minimal-preset.snapshot.ts
index 900cb34055..22ab1bc476 100644
--- a/apps/web/tests/minimal-preset.snapshot.ts
+++ b/apps/web/tests/minimal-preset.snapshot.ts
@@ -81,7 +81,6 @@ describe('minimal agent preset', () => {
     if (requestHeader === undefined) throw new Error('the minimal agent issued no model request')
     const systemPrompt = systemPromptText(agentHandle.agent.session)
     if (systemPrompt === undefined) throw new Error('the minimal agent issued no system prompt')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agentHandle.agent.session.snapshotEvents().some(event => event.type === 'user/message'
       && event.data.source.kind === 'plugin'
       && event.data.source.plugin === '@deepseek-ai/dsh-system-prompt')).toBe(false)
diff --git a/apps/web/tests/preset-migration.snapshot.ts b/apps/web/tests/preset-migration.snapshot.ts
index a68c5c9f30..7fb3d881d2 100644
--- a/apps/web/tests/preset-migration.snapshot.ts
+++ b/apps/web/tests/preset-migration.snapshot.ts
@@ -45,7 +45,6 @@ describe.skipIf(webSnapshotMode() === 'record')('historical preset restoration t
       if ('error' in resolved) throw resolved.error
       expect(scaffold.ctx.agentPresets.composedPreset(resolved.agent.ctx)).toBe('ptc')
       expect(resolved.agent.session.header.agentPreset).toBe('ptc')
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(resolved.agent.session.snapshotEvents()
         .filter(event => event.type === 'agent-preset/selected')
         .map(event => event.data.agentPreset)).toEqual(withSelections ? ['ptc', 'standard', 'ptc'] : [])
diff --git a/apps/web/tests/produced-file-mentions.e2e.ts b/apps/web/tests/produced-file-mentions.e2e.ts
index 91919dad25..b8ec77c693 100644
--- a/apps/web/tests/produced-file-mentions.e2e.ts
+++ b/apps/web/tests/produced-file-mentions.e2e.ts
@@ -112,7 +112,6 @@ function mentionFixture(): string {
       isSeeded: false,
       delegationDepth: 0,
     }),
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ...session.snapshotEvents().map(event => JSON.stringify({
       ...event,
       time: eventTimeOrigin + event.seq * 1_000,
diff --git a/apps/web/tests/produced-files.e2e.ts b/apps/web/tests/produced-files.e2e.ts
index acb267b644..1097ed3b1e 100644
--- a/apps/web/tests/produced-files.e2e.ts
+++ b/apps/web/tests/produced-files.e2e.ts
@@ -99,7 +99,6 @@ function producedFixture(): string {
       type: 'session', version: SESSION_FORMAT_VERSION, id: '{{sessionId}}',
       createdAt: 0, cwd: '{{cwd}}', isSeeded: false, delegationDepth: 0,
     }),
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ...session.snapshotEvents().map(event => JSON.stringify({
       ...event, time: eventTimeOrigin + event.seq * 1_000,
     })),
diff --git a/apps/web/tests/reference-composer.e2e.ts b/apps/web/tests/reference-composer.e2e.ts
index 3870715531..39c7786296 100644
--- a/apps/web/tests/reference-composer.e2e.ts
+++ b/apps/web/tests/reference-composer.e2e.ts
@@ -73,7 +73,6 @@ function sourceSessionFixture(): string {
       isSeeded: false,
       delegationDepth: 0,
     }),
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ...session.snapshotEvents().map(event => JSON.stringify(event)),
     '',
   ].join('\n')
@@ -123,7 +122,6 @@ function targetSessionFixture(): string {
       isSeeded: false,
       delegationDepth: 0,
     }),
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ...session.snapshotEvents().map(event => JSON.stringify(event)),
     '',
   ].join('\n')
diff --git a/apps/web/tests/scaffold.ts b/apps/web/tests/scaffold.ts
index ada371450b..4bc734aa4b 100644
--- a/apps/web/tests/scaffold.ts
+++ b/apps/web/tests/scaffold.ts
@@ -877,7 +877,6 @@ export async function launchWebScaffold(options: LaunchOptions = {}): Promise<We
  * in-memory record-mode harvest, so the on-disk zstd default never matters.
  */
 function rawSessionLog(session: Session): string {
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   const encodedEvents = (session.snapshotEvents() as unknown as readonly SessionFormatEvent[])
     .map(event => sessionFormatCatalog.encodeCurrentEvent(event))
   const header = sessionFormatCatalog.encodeCurrentHeader({
@@ -1031,7 +1030,6 @@ async function assertReplaySession(
   const userPrompts = fixtureUserPrompts(expected)
   const candidates = sessions.filter((session) => {
     if (session.header.parentSession !== undefined) return false
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const actual = session.snapshotEvents().flatMap((event) => {
       if (event.type !== 'user/message' || event.data.source.kind !== 'user') return []
       const text = event.data.content.filter(block => block.type === 'text').map(block => block.text).join('')
diff --git a/apps/web/tests/schedule-after.e2e.ts b/apps/web/tests/schedule-after.e2e.ts
index fd7a7bf461..587a355f4f 100644
--- a/apps/web/tests/schedule-after.e2e.ts
+++ b/apps/web/tests/schedule-after.e2e.ts
@@ -205,7 +205,6 @@ async function waitForReply(
 ): Promise<SessionEvent<'assistant/message'>> {
   const deadline = Date.now() + timeoutMs
   while (true) {
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const event = handle.agent.session.snapshotEvents().find((candidate): candidate is SessionEvent<'assistant/message'> => (
       candidate.type === 'assistant/message' && assistantText(candidate) === text
     ))
@@ -456,7 +455,6 @@ describe.skipIf(MODE === 'record')('web e2e: conversational reminders', () => {
   it('batches one latest occurrence per overdue Every record into an ordinary follow-up', async () => {
     onTestFailed(() => saveFailureShot(page, 'web-e2e-schedule-every'))
     const ids = new Set(everyRecords.map(record => record.id))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const dispatches = everyHandle.agent.session.snapshotEvents().filter(event => (
       event.type === 'schedule/change'
       && event.data.operation === 'dispatch'
@@ -472,7 +470,6 @@ describe.skipIf(MODE === 'record')('web e2e: conversational reminders', () => {
     const decision = acceptedAt[0]
     if (decision === undefined) throw new Error('missing Every decision time')
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const batch = everyHandle.agent.session.snapshotEvents().find(event => (
       event.type === 'user/message'
       && event.data.source.kind === 'plugin'
@@ -496,7 +493,6 @@ describe.skipIf(MODE === 'record')('web e2e: conversational reminders', () => {
     if (reminderRequest === undefined) throw new Error('model did not receive the Every batch')
     expect(requestText(reminderRequest)).toContain(batchBlock.text)
     expectReminderFraming(reminderRequest)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const active = foldScheduleEvents(everyHandle.agent.session.snapshotEvents()).active
     expect(active).toHaveLength(2)
     expect(active.every(record => Date.parse(record.scheduledAt) > Date.parse(decision))).toBe(true)
@@ -520,7 +516,6 @@ describe.skipIf(MODE === 'record')('web e2e: conversational reminders', () => {
 
   it('uses request-local browser context to create an explicit local At reminder', async () => {
     onTestFailed(() => saveFailureShot(page, 'web-e2e-schedule-at'))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const user = atHandle.agent.session.snapshotEvents().find(event => (
       event.type === 'user/message'
       && event.data.source.kind === 'user'
@@ -546,13 +541,11 @@ describe.skipIf(MODE === 'record')('web e2e: conversational reminders', () => {
     }
     expect(selectedAt.time_zone).toBe(AT_BROWSER_ZONE)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const toolCall = atHandle.agent.session.snapshotEvents().find(event => (
       event.type === 'tool/call' && event.data.name === 'schedule_create'
     ))
     if (toolCall?.type !== 'tool/call') throw new Error('missing schedule_create tool call')
     expect(JSON.parse(toolCall.data.arguments)).toEqual({ prompt: AT_PROMPT, at: selectedAt })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const created = atHandle.agent.session.snapshotEvents().find(event => (
       event.type === 'schedule/change'
       && event.data.operation === 'create'
@@ -567,7 +560,6 @@ describe.skipIf(MODE === 'record')('web e2e: conversational reminders', () => {
       prompt: AT_PROMPT,
       scheduledAt,
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(atHandle.agent.session.snapshotEvents().filter(event => (
       event.type === 'schedule/change'
       && event.data.operation === 'dispatch'
diff --git a/apps/web/tests/seeded-history.e2e.ts b/apps/web/tests/seeded-history.e2e.ts
index 3472c80c57..09110c5360 100644
--- a/apps/web/tests/seeded-history.e2e.ts
+++ b/apps/web/tests/seeded-history.e2e.ts
@@ -495,7 +495,6 @@ describe('web e2e: seeded history renders through cold resume', () => {
 
       const agent = scaffold.ctx.agents.get(SessionId(SEED_ID))
       if (agent === undefined) throw new Error('seeded session did not attach an agent')
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const done = agent.session.snapshotEvents().filter(event => event.type === 'command/done').at(-1)
       if (done?.type !== 'command/done') throw new Error('feedback command did not settle')
       const [sessionLine, userLine, extraLine] = done.data.text?.split('\n') ?? []
diff --git a/apps/web/tests/settings-chrome.e2e.ts b/apps/web/tests/settings-chrome.e2e.ts
index ed5b270188..8ef2af7048 100644
--- a/apps/web/tests/settings-chrome.e2e.ts
+++ b/apps/web/tests/settings-chrome.e2e.ts
@@ -144,7 +144,6 @@ describe('web e2e: settings modal and General preferences', () => {
   it('stores Permission as the default for future sessions without changing an existing session', async () => {
     onTestFailed(() => saveFailureShot(page, 'web-e2e-settings-permission'))
     const existing = scaffold.ctx.sessions.create(SessionId('settings-permission-before'))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(existing.snapshotEvents().find(event => event.type === 'permission/preset')?.data)
       .toEqual({ preset: 'workspace-write' })
 
@@ -161,12 +160,10 @@ describe('web e2e: settings modal and General preferences', () => {
     const document = await readFile(join(scaffold.harnessHome, 'settings.yaml'), 'utf8')
     expect(document).toContain('permission:')
     expect(document).toContain('defaultPreset: read-only')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(existing.snapshotEvents().find(event => event.type === 'permission/preset')?.data)
       .toEqual({ preset: 'workspace-write' })
 
     const created = scaffold.ctx.sessions.create(SessionId('settings-permission-after'))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(created.snapshotEvents().map(event => [event.type, event.data])).toEqual([
       ['permission/preset', { preset: 'read-only' }],
       ['sandbox/mode', { mode: 'read-only' }],
@@ -184,7 +181,6 @@ describe('web e2e: settings modal and General preferences', () => {
     const confirmedDocument = await readFile(join(scaffold.harnessHome, 'settings.yaml'), 'utf8')
     expect(confirmedDocument).toContain('defaultPreset: danger-full-access')
     const confirmed = scaffold.ctx.sessions.create(SessionId('settings-permission-confirmed'))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(confirmed.snapshotEvents().map(event => [event.type, event.data])).toEqual([
       ['permission/preset', { preset: 'danger-full-access' }],
       ['sandbox/mode', { mode: 'danger-full-access' }],
diff --git a/apps/web/tests/subagent-interrupt-ui.e2e.ts b/apps/web/tests/subagent-interrupt-ui.e2e.ts
index 7fe4b6f2de..11d96c63fd 100644
--- a/apps/web/tests/subagent-interrupt-ui.e2e.ts
+++ b/apps/web/tests/subagent-interrupt-ui.e2e.ts
@@ -320,7 +320,6 @@ describe.skipIf(MODE === 'record')('web e2e: composer interrupt for a running co
     const child = scaffold.ctx.agents.get(childId)
     expect(child).toBeDefined()
     expect(child!.inbox.nextTurn).toHaveLength(2)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child!.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(2)
     await page.getByRole('button', { name: 'Send message' }).waitFor({ timeout: 15_000 })
 
diff --git a/apps/web/tests/subagent-interrupt.e2e.ts b/apps/web/tests/subagent-interrupt.e2e.ts
index 9031d5577b..71e25c5918 100644
--- a/apps/web/tests/subagent-interrupt.e2e.ts
+++ b/apps/web/tests/subagent-interrupt.e2e.ts
@@ -159,9 +159,7 @@ describe.skipIf(MODE === 'record')('web e2e: subagents/interruptByParent over th
     expect(child).toBeDefined()
     expect(child!.status).toBe('idle')
     expect(child!.inbox.nextTurn).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child!.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const lastEnd = child!.session.snapshotEvents().filter(event => event.type === 'turn/end').at(-1)
     expect((lastEnd)?.data.reason.kind).toBe('aborted')
 
diff --git a/packages/acp/acp/tests/bridge.spec.ts b/packages/acp/acp/tests/bridge.spec.ts
index 218a88ada4..ad1fa30fac 100644
--- a/packages/acp/acp/tests/bridge.spec.ts
+++ b/packages/acp/acp/tests/bridge.spec.ts
@@ -902,7 +902,6 @@ describe('automation-only ACP bridge', () => {
     expect(secondImage.attachment.mediaType).toBe('image/jpeg')
     expect(secondImage.attachment.bytes).toBe(1)
     const agent = harness.ctx.agents.get(SessionId(sessionId))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(JSON.stringify(agent?.session.snapshotEvents())).not.toContain('AQ==')
   })
 
@@ -976,7 +975,6 @@ describe('automation-only ACP bridge', () => {
       sessionId,
       prompt: [{ type: 'image', data: '', mimeType: 'image/png' }],
     })).rejects.toThrow(/inline image prompts were not advertised/)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(harness.ctx.agents.get(SessionId(sessionId))?.session.snapshotEvents().some(event => event.type === 'turn/start')).toBe(false)
   })
 
diff --git a/packages/acp/acp/tests/turns.spec.ts b/packages/acp/acp/tests/turns.spec.ts
index 8b8e38d8ab..a17223750f 100644
--- a/packages/acp/acp/tests/turns.spec.ts
+++ b/packages/acp/acp/tests/turns.spec.ts
@@ -216,7 +216,6 @@ describe('ACP prompt lifecycle', () => {
     const prompt = harness.client.prompt({ sessionId, prompt: [{ type: 'text', text: 'go' }] })
       .finally(() => { settled = true })
     await vi.waitFor(() => {
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().filter(event => event.type === 'agent/inbox/spliced'
         && event.data.inserted.length > 0)).toHaveLength(2)
     })
@@ -317,7 +316,6 @@ describe('ACP prompt lifecycle', () => {
 
     await expect(first).resolves.toEqual({ stopReason: 'cancelled' })
     expect(harness.adapter.requests).toEqual([])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = harness.ctx.agents.get(SessionId(sessionId))?.session.snapshotEvents() ?? []
     expect(events.some(event => event.type === 'user/message' || event.type === 'turn/start')).toBe(false)
   })
@@ -445,7 +443,6 @@ describe('ACP prompt lifecycle', () => {
     await harness.client.cancel({ sessionId })
     await expect(prompt).resolves.toEqual({ stopReason: 'cancelled' })
     await agent.whenIdle()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')?.data.reason)
       .toEqual({ kind: 'aborted', reason: { kind: 'user' } })
   })
@@ -471,14 +468,12 @@ describe('ACP prompt lifecycle', () => {
       source: { kind: 'plugin', plugin: 'test' },
     }))
     await vi.waitFor(() => {
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().some(event => event.type === 'turn/start')).toBe(true)
     })
 
     await harness.client.cancel({ sessionId })
     await agent.whenIdle()
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')?.data.reason)
       .toEqual({ kind: 'aborted', reason: { kind: 'user' } })
   })
diff --git a/packages/api/session-controller/tests/commands-queue-attachment.host.spec.ts b/packages/api/session-controller/tests/commands-queue-attachment.host.spec.ts
index 22a38f92f9..d7559bc047 100644
--- a/packages/api/session-controller/tests/commands-queue-attachment.host.spec.ts
+++ b/packages/api/session-controller/tests/commands-queue-attachment.host.spec.ts
@@ -41,7 +41,6 @@ async function commandHarness(
   // never appends one: the identity folds as continuable, but from the
   // inherited prefix rather than this Session's own suffix.
   const lineage = childMode === 'seeded-continuable' || childMode === 'seed-only'
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ? ancestor.snapshotEvents()
     : undefined
   const session = ctx.sessions.create(sessionId, {
diff --git a/packages/api/session-controller/tests/session-cold.host.spec.ts b/packages/api/session-controller/tests/session-cold.host.spec.ts
index 54003d6a65..eaca25062f 100644
--- a/packages/api/session-controller/tests/session-cold.host.spec.ts
+++ b/packages/api/session-controller/tests/session-cold.host.spec.ts
@@ -203,7 +203,6 @@ describe('attached updatedAt tracks human prompts', () => {
       meta: { cwd: '/proj', createdAt: 500 },
     })
     ctx.agents.register({ id: resumed.id, session: resumed, status: 'idle', ctx } as Agent)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const boundary = resumed.snapshotEvents().at(-1)
     expect(boundary?.type).toBe('session/end-seed')
     expect(boundary?.time).toBeGreaterThan(worked)
@@ -718,7 +717,6 @@ describe('sessions.prompt synchronous rejection', () => {
       defaultModelSelection: () => ({ provider: 'p', model: 'm' }),
       cwd: '/tmp',
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const initialEvents = session.snapshotEvents()
     const rejectedContent: readonly SessionPromptRequest['content'][] = [
       [],
@@ -743,7 +741,6 @@ describe('sessions.prompt synchronous rejection', () => {
     }
     expect(followup).not.toHaveBeenCalled()
     expect(steer).not.toHaveBeenCalled()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual(initialEvents)
 
     const queued = await remote.prompt(promptRequest({
diff --git a/packages/api/session-controller/tests/session-fork.host.spec.ts b/packages/api/session-controller/tests/session-fork.host.spec.ts
index 355f99c0a6..1661f505bc 100644
--- a/packages/api/session-controller/tests/session-fork.host.spec.ts
+++ b/packages/api/session-controller/tests/session-fork.host.spec.ts
@@ -95,7 +95,6 @@ describe('sessions.fork', () => {
     expect(response.ok ? null : response.error).toBeNull()
     if (!response.ok) return
     const child = ctx.sessions.get(response.value.sessionId)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child?.snapshotEvents().map(event => event.type)).toEqual([
       'turn/start', 'user/message', 'turn/end', 'session/end-seed',
     ])
@@ -215,14 +214,12 @@ describe('sessions.fork', () => {
     const omitted = await proxy.fork(request({ sessionId: source.id }))
     expect(omitted.ok).toBe(true)
     if (omitted.ok) {
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(ctx.sessions.get(omitted.value.sessionId)?.snapshotEvents().map(event => event.type))
         .toEqual(expectedTypes)
     }
     const pastEnd = await proxy.fork(request({ sessionId: source.id, atSeq: 999 }))
     expect(pastEnd.ok).toBe(true)
     if (pastEnd.ok) {
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(ctx.sessions.get(pastEnd.value.sessionId)?.snapshotEvents().map(event => event.type))
         .toEqual(expectedTypes)
     }
@@ -246,12 +243,10 @@ describe('sessions.fork', () => {
     const source = liveAgent(ctx, 'session-aborted', 1, 'aborted')
     // What a stopped message's fork button anchors on: the frozen node sits
     // one event before its turn/end, floored client-side to that event's seq.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const anchor = (source.snapshotEvents().at(-1)?.seq ?? 0) - 1
     const response = await remote(ctx).fork(request({ sessionId: source.id, atSeq: anchor }))
     expect(response.ok).toBe(true)
     if (!response.ok) return
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(ctx.sessions.get(response.value.sessionId)?.snapshotEvents().map(event => event.type)).toEqual([
       'turn/start', 'user/message', 'turn/end',
       'turn/start', 'user/message', 'turn/end',
@@ -263,7 +258,6 @@ describe('sessions.fork', () => {
   it('rejects an in-log anchor whose turn is still open', async () => {
     const ctx = await composed()
     const source = liveAgent(ctx, 'session-open', 1, 'open')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const anchor = source.snapshotEvents().at(-1)?.seq ?? 0
     const response = await remote(ctx).fork(request({ sessionId: source.id, atSeq: anchor }))
     expect(response).toMatchObject({
diff --git a/packages/api/session-controller/tests/session-projections.host.spec.ts b/packages/api/session-controller/tests/session-projections.host.spec.ts
index 9339df6779..90ffb10456 100644
--- a/packages/api/session-controller/tests/session-projections.host.spec.ts
+++ b/packages/api/session-controller/tests/session-projections.host.spec.ts
@@ -172,7 +172,6 @@ describe('session.history projections block', () => {
     parent.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
     const inheritedEventCount = parent.seq
     const child = ctx.sessions.create(SessionId('wire-seed-child'), {
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       seed: parent.snapshotEvents(),
       inheritedEventCount,
       meta: {
@@ -449,7 +448,6 @@ describe('session.history projections block', () => {
     expect('test/last-user' in after.projections.values).toBe(false)
     expect(after.projections.values.sessionListMetadata).toEqual({
       blank: true,
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       lastPromptAt: session.eventAt(SessionSeq(session.seq - 1))?.time,
     })
   })
@@ -484,7 +482,6 @@ describe('session.list projections column', () => {
     expect(row?.projections?.values['test/last-user']).toEqual({ text: 'm0' })
     expect(row?.projections?.values.sessionListMetadata).toEqual({
       blank: false,
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       lastPromptAt: session.eventAt(SessionSeq(session.seq - 1))?.time,
     })
     expect(row?.projections?.asOfSeq).toBe(session.seq - 1)
diff --git a/packages/api/session-controller/tests/session-rename.host.spec.ts b/packages/api/session-controller/tests/session-rename.host.spec.ts
index 55ed1e32e0..60987608b9 100644
--- a/packages/api/session-controller/tests/session-rename.host.spec.ts
+++ b/packages/api/session-controller/tests/session-rename.host.spec.ts
@@ -76,7 +76,6 @@ describe('sessions.rename', () => {
     expect(renamed.ok).toBe(true)
     if (!renamed.ok) return
     expect(renamed.value.title).toBe('new name')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const event = source.snapshotEvents().findLast(item => item.type === 'session/title')
     expect(event?.seq).toBe(renamed.value.seq)
     expect(event?.data).toMatchObject({ title: 'new name', source: { kind: 'user' } })
diff --git a/packages/api/session-controller/tests/transport.host.spec.ts b/packages/api/session-controller/tests/transport.host.spec.ts
index 9ef70e5d8d..ebc731769e 100644
--- a/packages/api/session-controller/tests/transport.host.spec.ts
+++ b/packages/api/session-controller/tests/transport.host.spec.ts
@@ -230,7 +230,6 @@ describe('SessionHistoryController', () => {
     observed.resolve({
       source: 'live',
       header: attached.header,
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       events: attached.snapshotEvents(),
       cursor: attached.seq - 1,
       projections: { asOfSeq: attached.seq - 1, values: {} },
diff --git a/packages/client/ui-tool/tests/spill-policy-terminal.client.spec.ts b/packages/client/ui-tool/tests/spill-policy-terminal.client.spec.ts
index 0716dd609f..0db57e2139 100644
--- a/packages/client/ui-tool/tests/spill-policy-terminal.client.spec.ts
+++ b/packages/client/ui-tool/tests/spill-policy-terminal.client.spec.ts
@@ -70,7 +70,6 @@ async function executeShell(text: string, nested: boolean, name = 'bash', maxInl
     let block: ToolResultNode
     if (nested) {
       expect(result.value).toMatchObject({ result: true })
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const dispatches = session.snapshotEvents().filter(event => event.type === 'tool/ptc-dispatch')
       expect(dispatches).toHaveLength(1)
       const event = dispatches[0]!
diff --git a/packages/compaction/command-compact/tests/command-compact.spec.ts b/packages/compaction/command-compact/tests/command-compact.spec.ts
index 92013469ac..f2ab167d69 100644
--- a/packages/compaction/command-compact/tests/command-compact.spec.ts
+++ b/packages/compaction/command-compact/tests/command-compact.spec.ts
@@ -121,7 +121,6 @@ function expectLastLifecycle(
   args: string,
   outcome: CommandResult,
 ): string {
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   const lifecycle = test.agent.session.snapshotEvents()
     .filter(event => event.type === 'command/run' || event.type === 'command/done')
     .slice(-2)
diff --git a/packages/compaction/command-compact/tests/loader-composition.spec.ts b/packages/compaction/command-compact/tests/loader-composition.spec.ts
index 5b8402aae7..442d8196dc 100644
--- a/packages/compaction/command-compact/tests/loader-composition.spec.ts
+++ b/packages/compaction/command-compact/tests/loader-composition.spec.ts
@@ -130,7 +130,6 @@ describe('command-compact real Loader composition', () => {
       text: 'Compacted 3 history items (~99 tokens).',
       sourceEventSeq: RESULT.summarySeq,
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().map(event => ({ type: event.type, data: event.data }))).toEqual([
       {
         type: 'command/run',
diff --git a/packages/compaction/compaction-basic/tests/compaction-basic.spec.ts b/packages/compaction/compaction-basic/tests/compaction-basic.spec.ts
index df5cbce97c..bd6a48af66 100644
--- a/packages/compaction/compaction-basic/tests/compaction-basic.spec.ts
+++ b/packages/compaction/compaction-basic/tests/compaction-basic.spec.ts
@@ -625,7 +625,6 @@ describe('pressure measurement and retention', () => {
 
     await expect(compactIfNeeded(compact, session, 'context-overflow')).resolves.toBeNull()
     expect(session.surface.replaceGeneration).toBe(generation)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'compaction/start')).toBe(false)
   })
 
@@ -647,7 +646,6 @@ describe('pressure measurement and retention', () => {
     const compact = service(compactConfig, ctx)
     const session = conversation(4, undefined, 'SYSTEM HEAD')
     const [head, firstUser] = session.surface.nodes
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.eventAt(head!)?.type).toBe('system/message')
 
     const range = selectCompactableRange(session, ctx.tokenMeter.measure(session), compactConfig.retainTokens!)
@@ -891,11 +889,9 @@ describe('optional model-free tool-result pruning', () => {
 
     expect(await compactIfNeeded(compact, session)).not.toBeNull()
     expect(compact.calls).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const original = session.snapshotEvents().find(event => event.type === 'tool/result')
     expect(original?.type === 'tool/result' && original.data.message.content[0].content[0])
       .toEqual({ type: 'text', text: 'X'.repeat(3_000) })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event =>
       event.type === 'tool/result' && event.surfaceOp !== 'append')).toHaveLength(0)
   })
@@ -922,7 +918,6 @@ describe('compaction region transaction', () => {
     expect(result.shadowedTokenCount).toBeGreaterThan(0)
     expect(compact.calls[0]).toMatchObject({ signal: SIGNAL })
     expect(summarizedText(compact.calls[0]!.input)).toContain('fixture user 1')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const summary = session.snapshotEvents().findLast(event => event.type === 'compaction/summary')
     expect(summary?.data).toMatchObject({
       shadowedSeqs: result.shadowedSeqs,
@@ -939,7 +934,6 @@ describe('compaction region transaction', () => {
     expect(head.content[0]?.type === 'text' ? head.content[0].text : '').toContain('<compacted-summary>')
     expect(head.content.at(-1)).toEqual({ type: 'text', text: '</compacted-summary>' })
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const replay = Session.create(SessionId('replay'), session.snapshotEvents())
     expect(replay.deriveMessages()).toEqual(session.deriveMessages())
   })
@@ -964,7 +958,6 @@ describe('compaction region transaction', () => {
     const compact = service()
     const emptyHead = conversation(3, undefined, '')
     const emptyNodes = emptyHead.surface.nodes
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(emptyHead.eventAt(emptyNodes[0]!)?.type).toBe('system/message')
     await compact.compactRegion(emptyNodes[1]!, emptyNodes[2]!, agent(emptyHead, MODEL), SIGNAL)
     expect(compact.calls[0]!.input.messages[0]).toMatchObject({ role: 'user' })
@@ -986,7 +979,6 @@ describe('compaction region transaction', () => {
       .rejects.toThrow(/node 0 holds the system prompt/)
 
     expect(session.surface.nodes).toEqual(nodes)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = session.snapshotEvents().findLast(event => event.type === 'compaction/end')
     expect(end?.type === 'compaction/end' && end.data.error).toBeDefined()
   })
@@ -1100,7 +1092,6 @@ describe('compaction region transaction', () => {
       agent(session, MODEL),
     )).rejects.toThrow('summary unavailable')
     expect(session.surface.nodes).toEqual(before)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().findLast(event => event.type === 'compaction/end')?.data)
       .toMatchObject({ error: 'summary unavailable' })
   })
@@ -1115,7 +1106,6 @@ describe('compaction region transaction', () => {
       nodes[2]!,
       agent(session, MODEL),
     )).rejects.toBe('plain failure')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().findLast(event => event.type === 'compaction/end')?.data)
       .toMatchObject({ error: 'plain failure' })
   })
@@ -1136,7 +1126,6 @@ describe('compaction region transaction', () => {
       nodes[2]!,
       agent(session, MODEL),
     )).resolves.toMatchObject({ shadowedSeqs: nodes.slice(0, 3) })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'compaction/summary')).toBe(true)
   })
 
@@ -1156,7 +1145,6 @@ describe('compaction region transaction', () => {
       nodes[2]!,
       agent(session, MODEL),
     )).rejects.toThrow(/session surface changed/)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'compaction/summary')).toBe(false)
   })
 
@@ -1174,7 +1162,6 @@ describe('compaction region transaction', () => {
       nodes[2]!,
       agent(session, MODEL),
     )).rejects.toThrow(/summary is not smaller/)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'compaction/summary')).toBe(false)
   })
 
@@ -1448,7 +1435,6 @@ describe('default one-shot summarizer', () => {
     const session = conversation(3, 'large history '.repeat(500))
     const nodes = session.surface.nodes
     await compact.compactRegion(nodes[0]!, nodes[3]!, agent(session, MODEL), SIGNAL)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().findLast(event => event.type === 'compaction/summary')?.data).toMatchObject({
       summary: [{ type: 'text', text: 'routed summary' }],
       llmStreamCall: true,
@@ -1575,7 +1561,6 @@ describe('automatic listener and loader composition', () => {
     next: () => Promise<RequestErrorAction> = () => Promise.resolve(undefined),
   ): Promise<boolean> {
     const failure: LlmFailure = { message: error.message, code: error.code ?? 'UNKNOWN' }
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turn = owner.session.snapshotEvents().findLast(event => event.type === 'turn/start')?.data.turn ?? 1
     return agentEvents(ctx, owner).waterfall(
       'agent/request-error',
@@ -1596,12 +1581,10 @@ describe('automatic listener and loader composition', () => {
     })
     const pressured = conversation(4)
     await preStep(ctx, agent(pressured, 'unconfigured-agent-fallback'))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(pressured.snapshotEvents().some(event => event.type === 'compaction/summary')).toBe(true)
 
     const small = conversation(1)
     await preStep(ctx, agent(small, MODEL))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(small.snapshotEvents().some(event => event.type === 'compaction/start')).toBe(false)
     expect(compact.calls).toHaveLength(1)
   })
@@ -1619,7 +1602,6 @@ describe('automatic listener and loader composition', () => {
       .resolves.toEqual({ kind: 'enter', messages: [] })
 
     expect(compactIfNeeded).not.toHaveBeenCalled()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(pressured.snapshotEvents().some(event => event.type === 'compaction/start')).toBe(false)
   })
 
@@ -1636,7 +1618,6 @@ describe('automatic listener and loader composition', () => {
 
     await expect(preStep(ctx, agent(session, MODEL))).resolves.toEqual({ kind: 'enter', messages: [] })
     expect(warnings).toContainEqual(expect.stringContaining('temporary failure'))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'compaction/summary')).toBe(false)
   })
 
@@ -1696,7 +1677,6 @@ describe('automatic listener and loader composition', () => {
 
     expect(decision).toBe(true)
     expect(session.surface.replaceGeneration).toBe(beforeGeneration + 1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'compaction/summary')).toBe(true)
     expect(session.surface.nodes).toContain(retainedSeq)
   })
@@ -1716,7 +1696,6 @@ describe('automatic listener and loader composition', () => {
 
     expect(await recover(ctx, agent(session, MODEL), overflow())).toBe(true)
     expect(session.surface.replaceGeneration).toBe(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'compaction/summary')).toBe(false)
     expect(compact.calls).toHaveLength(0)
   })
@@ -1735,7 +1714,6 @@ describe('automatic listener and loader composition', () => {
     const session = toolConversation()
 
     expect(await recover(ctx, agent(session, MODEL), overflow())).toBe(true)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'compaction/summary')).toBe(true)
     expect(compact.calls).toHaveLength(1)
     expect(summarizedText(compact.calls[0]!.input)).toContain('tool result middle pruned')
@@ -1759,9 +1737,7 @@ describe('automatic listener and loader composition', () => {
 
     expect(await recover(ctx, agent(session, MODEL), overflow())).toBe(true)
     expect(session.surface.replaceGeneration).toBe(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event => event.type === 'tool/result')).toHaveLength(2)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().findLast(event => event.type === 'compaction/end')?.data)
       .toMatchObject({ error: 'summary unavailable after prune' })
     expect(warnings).toContainEqual(expect.stringContaining('retrying from the replacement surface'))
@@ -1964,11 +1940,9 @@ describe('automatic listener and loader composition', () => {
     })
     const session = conversation(4)
     await preStep(ctx, agent(session, MODEL))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const summaries = session.snapshotEvents().filter(event => event.type === 'compaction/summary').length
     expect(summaries).toBe(1)
     expect(await recover(ctx, agent(session, MODEL), overflow())).toBe(false)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event => event.type === 'compaction/summary')).toHaveLength(summaries)
   })
 
@@ -1981,7 +1955,6 @@ describe('automatic listener and loader composition', () => {
     })
     const session = conversation(4)
     await preStep(ctx, agent(session, MODEL))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'compaction/start')).toBe(false)
     expect(await recover(ctx, agent(session, MODEL), overflow())).toBe(false)
   })
@@ -2014,7 +1987,6 @@ describe('automatic listener and loader composition', () => {
 
     const session = conversation(4)
     await preStep(ctx, agent(session, MODEL))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'compaction/start')).toBe(false)
     expect(await recover(ctx, agent(session, MODEL), overflow())).toBe(false)
   })
@@ -2156,7 +2128,6 @@ describe('route-priced image pressure', () => {
 
     const result = await compact.compactIfNeeded(agent(session), 'pressure', SIGNAL)
     expect(result).not.toBeNull()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const summaryEvent = session.snapshotEvents().find(event => event.type === 'compaction/summary')
     expect(summaryEvent).toBeDefined()
     const shadowedHeuristic = before.nodes
diff --git a/packages/compaction/compaction-basic/tests/compaction-loop-repro.spec.ts b/packages/compaction/compaction-basic/tests/compaction-loop-repro.spec.ts
index a5834df1c7..a527226c03 100644
--- a/packages/compaction/compaction-basic/tests/compaction-loop-repro.spec.ts
+++ b/packages/compaction/compaction-basic/tests/compaction-loop-repro.spec.ts
@@ -212,7 +212,6 @@ function overflowHistorySeed(): readonly SessionEvent[] {
     session.append('step/end', { turn, step: 1 })
     session.append('turn/end', { turn, reason: { kind: 'completed' } })
   }
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return session.snapshotEvents()
 }
 
@@ -231,9 +230,7 @@ describe('CBR-001: a real-loop checkpoint is a valid boundary on both sides', ()
       await waitForIdle(ctx, agent)
 
       expect(agent.session.requestHeader()?.config.model).toBe('mock')
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().some(event => event.type === 'compaction/summary')).toBe(true)
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
         type: 'turn/end',
         data: { reason: { kind: 'completed' } },
@@ -250,7 +247,6 @@ describe('CBR-001: a real-loop checkpoint is a valid boundary on both sides', ()
       agent.followup(createUserMessage({ content: [{ type: 'text', text: 'do tool work' }], source: { kind: 'user' } }))
       await waitForIdle(ctx, agent)
 
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const events = agent.session.snapshotEvents()
       const compactStart = events.find(event => event.type === 'compaction/start')
       expect(compactStart).toBeDefined()
@@ -283,7 +279,6 @@ describe('CBR-001: a real-loop checkpoint is a valid boundary on both sides', ()
       agent.followup(createUserMessage({ content: [{ type: 'text', text: 'do a long multi-step task' }], source: { kind: 'user' } }))
       await waitForIdle(ctx, agent)
 
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const events = agent.session.snapshotEvents()
       // A compaction ran: at least one checkpoint landed on the surface.
       const checkpoints = events.filter(
@@ -352,7 +347,6 @@ describe('token pressure after loop-admitted system prompts', () => {
         prompt = nextPrompt
         agent.followup(createUserMessage({ content: [{ type: 'text', text: 'question' }], source: { kind: 'user' } }))
         await agent.whenIdle()
-        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
           type: 'turn/end', data: { reason: { kind: 'completed' } },
         })
@@ -360,13 +354,11 @@ describe('token pressure after loop-admitted system prompts', () => {
         expect(measured.baseline).toEqual({ kind: 'usage', tokens: 1110, usage })
         expect(measured.surfaceDeltaTokens).toBe(0)
         expect(measured.totalTokens).toBe(1110)
-        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         const replay = Session.create(SessionId('prompt-pressure-replay'), agent.session.snapshotEvents())
         expect(ctx.tokenMeter.measure(replay)).toMatchObject({
           baseline: measured.baseline, surfaceDeltaTokens: 0, totalTokens: 1110, nodes: measured.nodes,
         })
       }
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const events = agent.session.snapshotEvents()
       const prompts = events.filter(event => event.type === 'system/message')
       expect(prompts[0]?.surfaceOp).toBe('append')
@@ -436,7 +428,6 @@ describe('context-overflow recovery across the real loop and compaction-basic',
         expect(retry).toContain('RECOVERY CHECKPOINT')
         expect(retry).not.toContain('OLD HISTORY SENTINEL')
 
-        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         const events = agent.session.snapshotEvents()
         const stepStart = events.find(event =>
           event.type === 'step/start' && event.data.turn === 3 && event.data.step === 1,
@@ -499,13 +490,10 @@ describe('context-overflow recovery across the real loop and compaction-basic',
 
       expect(adapter.conversationRequests).toHaveLength(3)
       expect(adapter.summaryRequests).toHaveLength(1)
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().filter(event => event.type === 'llm/retry').map(event => event.data))
         .toEqual([expect.objectContaining({ turn: 3, step: 1, retry: 1, failure: { message: 'temporary provider outage', code: 'SERVER' } })])
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start').slice(-1).map(event => event.data.turn))
         .toEqual([3])
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
         type: 'turn/end',
         data: { reason: { kind: 'completed' } },
diff --git a/packages/compaction/compaction-basic/tests/manual-compaction.spec.ts b/packages/compaction/compaction-basic/tests/manual-compaction.spec.ts
index daef651acd..9a118cd5a9 100644
--- a/packages/compaction/compaction-basic/tests/manual-compaction.spec.ts
+++ b/packages/compaction/compaction-basic/tests/manual-compaction.spec.ts
@@ -233,7 +233,6 @@ function detachedService(): { ctx: Context; compact: GatedCompactionEngine; flus
 }
 
 function compactEvents(session: Session): SessionEvent[] {
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return session.snapshotEvents().filter(event => event.type.startsWith('compaction/'))
 }
 
@@ -296,16 +295,13 @@ describe('compactNow through the real loop', () => {
     const result = await compact.compactNow(agent, SIGNAL)
 
     expect(result).not.toBeNull()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const start = agent.session.snapshotEvents().findLast(event => event.type === 'compaction/start')
     const injected = agent.inbox.nextStep.find(message =>
       message.source.kind === 'plugin' && message.source.plugin === 'test')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = agent.session.snapshotEvents().findLast(event => event.type === 'compaction/end')
     expect(start).toBeDefined()
     expect(injected).toBeDefined()
     expect(end).toBeDefined()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'user/message'
       && event.data.id === injected?.id)).toBe(false)
 
@@ -340,7 +336,6 @@ describe('compactNow through the real loop', () => {
     expect(result).not.toBeNull()
     expect(agent.session.deriveMessages()[0]?.role).toBe('system')
     expect(derivedText(agent.session)[1]).toContain('checkpoint')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'user/message'
       && event.data.source.kind === 'plugin' && event.data.source.plugin === 'listener')).toHaveLength(0)
     const types = compactEvents(agent.session).map(event => event.type)
@@ -361,7 +356,6 @@ describe('compactNow through the real loop', () => {
 
     await agent.whenIdle()
     expect(adapter.requests).toHaveLength(2)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'compaction/start')).toBe(false)
   })
 
@@ -412,18 +406,13 @@ describe('compactNow transaction and failure classification', () => {
     expect(result).not.toBeNull()
     expect(result?.sourceCommandId).toBe(commandId)
     expect(flushes()).toBe(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event => event.type === 'turn/start').at(-1)?.data.turn).toBe(7)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const start = session.snapshotEvents().findLast(event => event.type === 'compaction/start')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const summaryEvent = session.snapshotEvents().findLast(event => event.type === 'compaction/summary')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const checkpoint = session.snapshotEvents().findLast(
       (event): event is SessionEvent<'user/message'> => event.type === 'user/message'
         && isCompactCheckpointSource(event.data.source),
     )
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = session.snapshotEvents().findLast(event => event.type === 'compaction/end')
     const correlated = { compactionId: result?.compactionId, sourceCommandId: commandId }
     expect(start?.data).toEqual({ ...correlated, turn: null })
@@ -454,11 +443,8 @@ describe('compactNow transaction and failure classification', () => {
       compactionId: CompactionId('stale-manual-compaction'),
       turn: null,
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const reloaded = Session.create(SessionId('stale-orphan'), original.snapshotEvents())
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const boundary = reloaded.snapshotEvents().findLast(event => event.type === 'session/end-seed')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const orphan = reloaded.snapshotEvents().find(event => event.type === 'compaction/start')
     const agent = fakeAgent(reloaded, () => () => undefined)
 
@@ -476,7 +462,6 @@ describe('compactNow transaction and failure classification', () => {
     })
     original.append('turn/start', { turn: 3 })
     original.append('turn/end', { turn: 3, reason: { kind: 'interrupted' } })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const reloaded = Session.create(SessionId('reloaded-orphan'), original.snapshotEvents())
     const agent = fakeAgent(reloaded, () => () => undefined)
 
@@ -580,7 +565,6 @@ describe('compactNow transaction and failure classification', () => {
     expect(session.surface.replaceGeneration).toBe(generation + 1)
     expect(session.surface.nodes).not.toContain(head)
     expect(compactEvents(session).map(event => event.type)).toEqual(['compaction/start', 'compaction/end'])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'user/message'
       && isCompactCheckpointSource(event.data.source))).toBe(false)
   })
@@ -600,7 +584,6 @@ describe('compactNow transaction and failure classification', () => {
     expect(causeOf(error).message).toBe('boundary rejected')
     vi.restoreAllMocks()
     expect(flushes()).toBe(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().findLast(event => event.type.startsWith('compaction/'))?.type)
       .toBe('compaction/summary')
     expect(compactEvents(session).filter(event => event.type === 'compaction/start')).toHaveLength(1)
@@ -667,7 +650,6 @@ describe('compactNow transaction and failure classification', () => {
     vi.restoreAllMocks()
     expect(error.code).toBe('commit')
     expect(released).toBe(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = session.snapshotEvents().findLast(event => event.type === 'compaction/end')
     expect(end?.type === 'compaction/end' && end.data.error).toContain('summary record rejected')
     expect(end?.type === 'compaction/end' && end.data.turn).toBeNull()
@@ -704,9 +686,7 @@ describe('compactNow transaction and failure classification', () => {
     const result = await compact.compactNow(agent, SIGNAL)
 
     expect(result).not.toBeNull()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'turn/start')).toBe(false)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().find(event => event.type === 'compaction/start')?.data)
       .toEqual({ compactionId: result?.compactionId, turn: null })
   })
@@ -719,11 +699,8 @@ describe('compactNow transaction and failure classification', () => {
 
     expect((await rejection(compact.compactNow(agent, SIGNAL))).code).toBe('persistence')
     vi.restoreAllMocks()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'compaction/summary')).toBe(true)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const start = session.snapshotEvents().findLast(event => event.type === 'compaction/start')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = session.snapshotEvents().findLast(event => event.type === 'compaction/end')
     expect(end?.data).toEqual({ compactionId: start?.data.compactionId, turn: null })
   })
@@ -740,7 +717,6 @@ describe('compactNow transaction and failure classification', () => {
       const reserve = vi.fn(() => testCase.release)
       const measure = vi.spyOn(ctx.tokenMeter, 'measure')
       const agent = fakeAgent(testCase.session, reserve)
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const before = testCase.session.snapshotEvents()
       const reason = Object.freeze({ kind: 'cancelled', case: testCase.name })
       const controller = new AbortController()
@@ -756,7 +732,6 @@ describe('compactNow transaction and failure classification', () => {
       expect(reserve).not.toHaveBeenCalled()
       expect(measure).not.toHaveBeenCalled()
       expect(compact.calls).toHaveLength(0)
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(testCase.session.snapshotEvents()).toEqual(before)
       vi.restoreAllMocks()
     }
@@ -806,7 +781,6 @@ describe('compactNow transaction and failure classification', () => {
 
     await expect(compact.compactNow(agent, controller.signal)).rejects.toBe(reason)
     expect(compactEvents(session).map(event => event.type)).toEqual(['compaction/start', 'compaction/end'])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'compaction/summary')).toBe(false)
   })
 
@@ -851,7 +825,6 @@ describe('compactNow transaction and failure classification', () => {
 
     await compact.compactNow(agent, SIGNAL)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const summary = session.snapshotEvents().find(event => event.type === 'compaction/summary')
     expect(summary?.type === 'compaction/summary' && summary.data.rawOutput).toEqual(compact.rawOutput)
     expect(summary?.type === 'compaction/summary' && summary.data.usage).toEqual(compact.usage)
@@ -867,9 +840,7 @@ describe('compactNow transaction and failure classification', () => {
 
     await compact.compactNow(agent, SIGNAL)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const start = session.snapshotEvents().findLast(event => event.type === 'compaction/start')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = session.snapshotEvents().findLast(event => event.type === 'compaction/end')
     expect(start).toBeDefined()
     expect(end).toBeDefined()
diff --git a/packages/compaction/compaction-tool-result-pruner/tests/tool-result-pruner.spec.ts b/packages/compaction/compaction-tool-result-pruner/tests/tool-result-pruner.spec.ts
index 7bcbd0ed62..a09d0a3c53 100644
--- a/packages/compaction/compaction-tool-result-pruner/tests/tool-result-pruner.spec.ts
+++ b/packages/compaction/compaction-tool-result-pruner/tests/tool-result-pruner.spec.ts
@@ -186,9 +186,7 @@ describe('ToolResultPruner session transaction', () => {
     expect(entry).toMatchObject({ originalSeq, callId: ToolCallId('one'), charsBefore: 100 })
     expect(entry.charsAfter).toBeLessThanOrEqual(50)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const original = session.snapshotEvents()[originalSeq]!
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const replacement = session.snapshotEvents()[entry.replacementSeq]! as SurfaceEvent
     expect(original).toMatchObject({
       type: 'tool/result',
@@ -223,7 +221,6 @@ describe('ToolResultPruner session transaction', () => {
     // Shadow-price protocol: the metering event sits directly before the
     // replacement and prices the shadowed node with the shared estimator.
     if (original.type !== 'tool/result') throw new Error('original is not a tool/result')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()[entry.replacementSeq - 1]).toMatchObject({
       type: 'compaction/prune',
       data: {
@@ -259,7 +256,6 @@ describe('ToolResultPruner session transaction', () => {
       turn: 2,
     })
     service().pruneSession(session)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const replay = Session.create(session.id, session.snapshotEvents())
     expect(replay.deriveMessages()).toEqual(session.deriveMessages())
     expect(replay.surface.replaceGeneration).toBe(session.surface.replaceGeneration)
diff --git a/packages/compaction/compaction/tests/compaction.spec.ts b/packages/compaction/compaction/tests/compaction.spec.ts
index 887362b18b..350d4b8308 100644
--- a/packages/compaction/compaction/tests/compaction.spec.ts
+++ b/packages/compaction/compaction/tests/compaction.spec.ts
@@ -131,7 +131,6 @@ describe('CompactionEngine seam', () => {
 
     const result = await svc.compactRegion(original.seq, original.seq, stubAgent(session, 'm'))
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const startEvent = session.snapshotEvents().find(e => e.type === 'compaction/start')
     expect(startEvent).toBeDefined()
     // Log-only: the compiler rejects surfaceOp on compaction/* (not a SurfaceEventType);
@@ -143,14 +142,12 @@ describe('CompactionEngine seam', () => {
     expect(result.endSeq).toBeGreaterThan(result.summarySeq)
     expect(result.shadowedRange).toEqual({ start: original.seq, end: original.seq })
     expect(result.shadowedSeqs).toEqual([original.seq])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const checkpoint = session.snapshotEvents().find(event => event.type === 'user/message'
       && isCompactCheckpointSource(event.data.source))
     expect(checkpoint?.type === 'user/message' && checkpoint.data.source)
       .toEqual(compactCheckpointSource(result.compactionId))
     expect(isCompactCheckpointSource({ kind: 'plugin', plugin: 'other' })).toBe(false)
     expect(isCompactCheckpointSource({ kind: 'user' })).toBe(false)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(e => e.type.startsWith('compaction/')).map(e => e.type))
       .toEqual(['compaction/start', 'compaction/summary', 'compaction/end'])
   })
diff --git a/packages/compaction/compaction/tests/invariant.spec.ts b/packages/compaction/compaction/tests/invariant.spec.ts
index 314ed70ba1..ff49a3400e 100644
--- a/packages/compaction/compaction/tests/invariant.spec.ts
+++ b/packages/compaction/compaction/tests/invariant.spec.ts
@@ -134,10 +134,8 @@ describe('compaction invariants', () => {
     const source = Session.create(SessionId('stale-compaction-source'))
     source.append('compaction/start', { compactionId: TEST_COMPACTION_ID, turn: null })
     const replayed = ctx.sessions.create(SessionId('stale-compaction-replay'), {
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       seed: source.snapshotEvents(),
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(replayed.snapshotEvents().map(event => event.type))
       .toEqual(['compaction/start', 'session/end-seed'])
 
@@ -157,10 +155,8 @@ describe('compaction invariants', () => {
     startTurn(source)
     source.append('compaction/start', { compactionId: TEST_COMPACTION_ID, turn: 1 })
     const replayed = ctx.sessions.create(SessionId('stale-numbered-compaction-replay'), {
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       seed: source.snapshotEvents(),
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(replayed.snapshotEvents().map(event => event.type))
       .toEqual(['turn/start', 'compaction/start', 'session/end-seed'])
 
@@ -181,10 +177,8 @@ describe('compaction invariants', () => {
     startTurn(source)
     source.append('turn/end', { turn: 1, reason: { kind: 'interrupted' } })
     const replayed = ctx.sessions.create(SessionId('stale-repaired-compaction-replay'), {
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       seed: source.snapshotEvents(),
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(replayed.snapshotEvents().map(event => event.type)).toEqual([
       'compaction/start',
       'turn/start',
@@ -210,10 +204,8 @@ describe('compaction invariants', () => {
     source.append('turn/end', { turn: 1, reason: { kind: 'interrupted' } })
     source.append('compaction/end', { compactionId: TEST_COMPACTION_ID, turn: null, error: 'failed after crossing turn' })
     const replayed = ctx.sessions.create(SessionId('closed-nested-compaction-replay'), {
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       seed: source.snapshotEvents(),
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(replayed.snapshotEvents().at(-1)?.type).toBe('session/end-seed')
 
     await ctx.plugin(InvariantRegistry)
diff --git a/packages/compaction/compaction/tests/tool-pairing.spec.ts b/packages/compaction/compaction/tests/tool-pairing.spec.ts
index a3dbb7e88c..a5694d1514 100644
--- a/packages/compaction/compaction/tests/tool-pairing.spec.ts
+++ b/packages/compaction/compaction/tests/tool-pairing.spec.ts
@@ -7,7 +7,6 @@ import type { SessionEvent, SessionSeq as SessionSeqType } from '@deepseek-ai/ds
 const SURFACE = { surfaceOp: 'append' as const }
 
 function seqOf(session: Session, type: SessionEvent['type'], nth = 0): SessionSeqType {
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return session.snapshotEvents().filter(event => event.type === type)[nth]!.seq
 }
 
diff --git a/packages/context/agent-instructions/tests/agent-instructions.e2e.ts b/packages/context/agent-instructions/tests/agent-instructions.e2e.ts
index 2c256150c8..7e35bdee21 100644
--- a/packages/context/agent-instructions/tests/agent-instructions.e2e.ts
+++ b/packages/context/agent-instructions/tests/agent-instructions.e2e.ts
@@ -77,7 +77,6 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('workspace context e2e: real mode
     live.agent.followup(createUserMessage({ content: [{ type: 'text', text: 'Workspace context handshake?' }], source: { kind: 'user' } }))
     await waitForIdle(live.ctx, live.agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(finalText(live.agent.session.snapshotEvents())).toContain(PROBE)
   }, 120_000)
 
@@ -90,7 +89,6 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('workspace context e2e: real mode
     live.agent.followup(createUserMessage({ content: [{ type: 'text', text: 'Use the read tool to inspect pkg/deep/file.txt. After reading it, answer: nested instruction handshake?' }], source: { kind: 'user' } }))
     await waitForIdle(live.ctx, live.agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(finalText(live.agent.session.snapshotEvents())).toContain(NESTED_PROBE)
   }, 120_000)
 
@@ -104,7 +102,6 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('workspace context e2e: real mode
     live.agent.followup(createUserMessage({ content: [{ type: 'text', text: 'You must use the read tool to inspect trigger.txt. After reading it, answer: updated workspace context handshake?' }], source: { kind: 'user' } }))
     await waitForIdle(live.ctx, live.agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = live.agent.session.snapshotEvents()
     const update = events.find(event => event.type === 'user/message'
       && event.data.source.kind === 'agent-instructions'
diff --git a/packages/context/agent-instructions/tests/agent-instructions.spec.ts b/packages/context/agent-instructions/tests/agent-instructions.spec.ts
index 259a419bb4..d477cf666e 100644
--- a/packages/context/agent-instructions/tests/agent-instructions.spec.ts
+++ b/packages/context/agent-instructions/tests/agent-instructions.spec.ts
@@ -277,7 +277,6 @@ async function syncedWorkspaceContext(ctx: Context, agent: Agent): Promise<UserM
 }
 
 function baselineEvents(agent: Agent): SessionEvent[] {
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return agent.session.snapshotEvents().filter(event =>
     event.type === 'user/message'
     && event.data.source.kind === 'agent-instructions'
@@ -1128,7 +1127,6 @@ describe('workspace context request injection', () => {
       const second = await composeBaselinePrefix(ctx, agent)
 
       expect(second).toEqual(first)
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().filter(event => event.type === 'user/message' && event.data.source.kind !== 'user')).toHaveLength(1)
       expect(derivedText(agent)).toContain('repo rule')
     } finally {
@@ -1148,16 +1146,13 @@ describe('workspace context request injection', () => {
       const original = await stubAgent(root)
       await composeBaselinePrefix(ctx, original)
 
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const firstResume = await stubAgent(root, original.session.snapshotEvents())
       await composeBaselinePrefix(ctx, firstResume)
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const secondResume = await stubAgent(root, firstResume.session.snapshotEvents())
       await composeBaselinePrefix(ctx, secondResume)
 
       expect(baselineEvents(firstResume)).toHaveLength(1)
       expect(baselineEvents(secondResume)).toHaveLength(1)
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(secondResume.session.snapshotEvents().filter(event => event.type === 'user/message'
         && event.data.source.kind === 'agent-instructions')).toHaveLength(1)
     } finally {
@@ -1180,12 +1175,10 @@ describe('workspace context request injection', () => {
       await composeBaselinePrefix(ctx, original)
 
       fs.throwOnStat.add(join(root, 'AGENTS.md'))
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const resumed = await stubAgent(root, original.session.snapshotEvents())
       await composeBaselinePrefix(ctx, resumed)
 
       expect(baselineEvents(resumed)).toHaveLength(1)
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(resumed.session.snapshotEvents().filter(event => event.type === 'user/message'
         && event.data.source.kind === 'agent-instructions')).toHaveLength(1)
     } finally {
@@ -1208,15 +1201,12 @@ describe('workspace context request injection', () => {
       const original = await stubAgent(cwd)
       await composeBaselinePrefix(ctx, original)
 
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const firstResume = await stubAgent(cwd, original.session.snapshotEvents())
       await composeBaselinePrefix(ctx, firstResume)
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const secondResume = await stubAgent(cwd, firstResume.session.snapshotEvents())
       await composeBaselinePrefix(ctx, secondResume)
 
       expect(baselineEvents(secondResume)).toHaveLength(1)
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(secondResume.session.snapshotEvents().filter(event => event.type === 'user/message'
         && event.data.source.kind === 'agent-instructions')).toHaveLength(1)
       expect(blocksText(secondResume.session.deriveMessages()[0]?.content)).toContain('omitted AGENTS.md')
@@ -1241,12 +1231,10 @@ describe('workspace context request injection', () => {
       await composeBaselinePrefix(ctx, original)
 
       await write(join(cwd, 'AGENTS.md'), 'package rule')
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const resumed = await stubAgent(cwd, original.session.snapshotEvents())
       await composeBaselinePrefix(ctx, resumed)
 
       expect(baselineEvents(resumed)).toHaveLength(1)
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const update = resumed.session.snapshotEvents().findLast(event => event.type === 'user/message'
         && event.data.source.kind === 'agent-instructions'
         && event.data.source.baseline !== true)
@@ -1280,7 +1268,6 @@ describe('workspace context request injection', () => {
         maxBytes: 65536,
         instructionFileCandidates: ['CLAUDE.md', 'AGENTS.md'],
       })
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const resumed = await stubAgent(root, original.session.snapshotEvents())
       await composeBaselinePrefix(resumedCtx, resumed)
 
@@ -1300,7 +1287,6 @@ describe('workspace context request injection', () => {
         : [])
       expect(new Set(baselineIdentities).size).toBe(2)
 
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const repeated = await stubAgent(root, resumed.session.snapshotEvents())
       await composeBaselinePrefix(resumedCtx, repeated)
       expect(baselineEvents(repeated)).toHaveLength(2)
@@ -1335,7 +1321,6 @@ describe('workspace context request injection', () => {
         maxBytes: 65536,
         instructionFileCandidates: ['CLAUDE.md'],
       })
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const claudeResume = await stubAgent(root, original.session.snapshotEvents())
       await composeBaselinePrefix(claudeCtx, claudeResume)
       const claudeBaseline = baselineEvents(claudeResume).at(-1)
@@ -1351,7 +1336,6 @@ describe('workspace context request injection', () => {
         maxBytes: 65536,
         instructionFileCandidates: ['AGENTS.md'],
       })
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const restored = await stubAgent(root, claudeResume.session.snapshotEvents())
       await composeBaselinePrefix(restoredCtx, restored)
       const restoredBaseline = baselineEvents(restored).at(-1)
@@ -1387,7 +1371,6 @@ describe('workspace context request injection', () => {
         maxBytes: 65536,
         instructionFileCandidates: ['POLICY.md'],
       })
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const resumed = await stubAgent(root, original.session.snapshotEvents())
       await composeBaselinePrefix(resumedCtx, resumed)
 
@@ -1402,7 +1385,6 @@ describe('workspace context request injection', () => {
         { action: 'remove', scope: sk('.', 'AGENTS.md'), path: 'AGENTS.md' },
       ])
 
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const repeated = await stubAgent(root, resumed.session.snapshotEvents())
       await composeBaselinePrefix(resumedCtx, repeated)
       expect(baselineEvents(repeated)).toHaveLength(2)
@@ -1433,7 +1415,6 @@ describe('workspace context request injection', () => {
 
       await fiber.dispose()
       await mountWorkspaceContextPlugin(ctx, { dshHome: home, maxBytes: 65536 })
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const resumed = await stubAgent(root, original.session.snapshotEvents())
       agentEvents(ctx, resumed).emit('agent/session-start', { source: 'resume' })
       const claimed = claimInbox(resumed, 'next-step')
@@ -1450,7 +1431,6 @@ describe('workspace context request injection', () => {
 
       expect(decision.messages.map(message => message.id)).toEqual([inserted?.id])
       expect(resumed.inbox.nextStep).toEqual([])
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(resumed.session.snapshotEvents().filter(event => event.type === 'agent/inbox/spliced'
         && event.data.inserted.some(message => message.source.kind === 'agent-instructions'
           && message.source.baseline === true))).toHaveLength(1)
@@ -1481,7 +1461,6 @@ describe('workspace context request injection', () => {
       await write(join(root, 'AGENTS.md'), 'new repo rule')
       await fiber.dispose()
       await mountWorkspaceContextPlugin(ctx, { dshHome: home, maxBytes: 65536 })
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const resumed = await stubAgent(root, original.session.snapshotEvents())
       agentEvents(ctx, resumed).emit('agent/session-start', { source: 'resume' })
       const staleClaim = claimInbox(resumed, 'next-step')
@@ -1535,7 +1514,6 @@ describe('workspace context request injection', () => {
       await originalCtx.fiber.dispose()
       if (provideFs) await resumedCtx.plugin(LocalFileSystem, { cwd: '/' })
       await mountWorkspaceContextPlugin(resumedCtx, { dshHome: home, maxBytes })
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const resumed = await stubAgent(root, original.session.snapshotEvents())
       agentEvents(resumedCtx, resumed).emit('agent/session-start', { source: 'resume' })
       const claimed = claimInbox(resumed, 'next-step')
@@ -1577,7 +1555,6 @@ describe('workspace context request injection', () => {
 
       await composeBaselinePrefix(ctx, agent)
 
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const removal = agent.session.snapshotEvents().find(event => event.type === 'user/message'
         && event.data.source.kind === 'agent-instructions'
         && event.data.source.changes.some(change => change.action === 'remove'))
@@ -1612,7 +1589,6 @@ describe('workspace context request injection', () => {
 
       await composeBaselinePrefix(ctx, agent)
 
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const workspaceEvents = agent.session.snapshotEvents().filter(event => event.type === 'user/message'
         && event.data.source.kind === 'agent-instructions')
       expect(workspaceEvents).toHaveLength(2)
@@ -1622,7 +1598,6 @@ describe('workspace context request injection', () => {
       expect(baselineEvents(agent)).toHaveLength(1)
 
       await composeBaselinePrefix(ctx, agent)
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().filter(event => event.type === 'user/message'
         && event.data.source.kind === 'agent-instructions')).toHaveLength(2)
     } finally {
@@ -1846,7 +1821,6 @@ describe('workspace context request injection', () => {
       // The first resumed pre-step retains the compatible visible baseline and
       // appends only the offline file transition needed to reach current state.
       await write(join(root, 'AGENTS.md'), 'new root rule after offline edit')
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const resumed = await stubAgent(root, original.session.snapshotEvents())
 
       // Resume announces its lifecycle start before the first step.
@@ -1855,7 +1829,6 @@ describe('workspace context request injection', () => {
 
       const baselines = baselineEvents(resumed)
       expect(baselines).toHaveLength(1)
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const latest = resumed.session.snapshotEvents().findLast(event =>
         event.type === 'user/message' && event.data.source.kind === 'agent-instructions')
       expect(latest?.type === 'user/message' ? latest.data.source : undefined).toMatchObject({
@@ -2037,7 +2010,6 @@ describe('workspace context request injection', () => {
 
       await composeBaselinePrefix(ctx, agent)
 
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const contexts = agent.session.snapshotEvents().filter(event =>
         event.type === 'user/message' && event.data.source.kind !== 'user',
       )
@@ -2679,7 +2651,6 @@ describe('dynamic nested workspace context injection', () => {
 
       agent.followup(createUserMessage({ content: [{ type: 'text', text: 'read and abort' }], source: { kind: 'user' } }))
       await agent.whenIdle()
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().filter(event =>
         event.type === 'user/message' && event.data.source.kind !== 'user',
       )).toHaveLength(0)
@@ -2687,7 +2658,6 @@ describe('dynamic nested workspace context injection', () => {
       agent.followup(createUserMessage({ content: [{ type: 'text', text: 'retry the read' }], source: { kind: 'user' } }))
       await agent.whenIdle()
 
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const contexts = agent.session.snapshotEvents().filter(event => event.type === 'user/message' && event.data.source.kind !== 'user')
       expect(contexts).toHaveLength(1)
       expect(adapter.requests).toHaveLength(3)
@@ -3663,7 +3633,6 @@ describe('dynamic nested workspace context injection', () => {
         agent,
       })
       await appendAdditionalContexts(ctx, agent)
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const resumed = await stubAgent(root, agent.session.snapshotEvents())
 
       const afterResume = await ctx.tools.execute({
@@ -3698,12 +3667,10 @@ describe('dynamic nested workspace context injection', () => {
       })
       await appendAdditionalContexts(ctx, original)
       await write(join(root, 'pkg/AGENTS.md'), 'new nested rule after resume')
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const resumed = await stubAgent(root, original.session.snapshotEvents())
 
       await composeBaselinePrefix(ctx, resumed)
 
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const update = resumed.session.snapshotEvents().findLast(event => event.type === 'user/message' && event.data.source.kind !== 'user')
       expect(update?.type === 'user/message' && update.data.source).toMatchObject({
         changes: [{ action: 'replace', scope: sk('pkg', 'AGENTS.md'), path: join('pkg', 'AGENTS.md') }],
@@ -4734,7 +4701,6 @@ describe('workspace context inbox synchronization', () => {
         callId: ToolCallId('recover-pending-a'), name: 'read', arguments: { file_path: join('a', 'file.txt') }, agent: original,
       })
       await syncWorkspaceContext(ctx, original)
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const resumed = await stubAgent(root, original.session.snapshotEvents())
 
       await ctx.tools.execute({
diff --git a/packages/context/session-reference/tests/loader-composition.spec.ts b/packages/context/session-reference/tests/loader-composition.spec.ts
index 624b28de33..c680e393ca 100644
--- a/packages/context/session-reference/tests/loader-composition.spec.ts
+++ b/packages/context/session-reference/tests/loader-composition.spec.ts
@@ -134,7 +134,6 @@ describe('session-reference real Loader composition', () => {
     ctx.sessions.get(SessionId('reference-source'))!.append('user/message', createUserMessage({
       content: [{ type: 'text', text: 'LATER_SOURCE_MUTATION' }], source: { kind: 'user' },
     }), { surfaceOp: 'append' })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(Session.create(SessionId('replayed-target'), target.snapshotEvents()).deriveMessages()).toEqual(captured)
     expect(await readFile(notice.fullSnapshot.locator, 'utf8')).toBe(transcript)
   })
diff --git a/packages/context/session-reference/tests/session-reference.spec.ts b/packages/context/session-reference/tests/session-reference.spec.ts
index cbb14be78d..dc2caa5067 100644
--- a/packages/context/session-reference/tests/session-reference.spec.ts
+++ b/packages/context/session-reference/tests/session-reference.spec.ts
@@ -322,7 +322,6 @@ describe('session reference spill outcomes', () => {
       const target = ctx.sessions.create(SessionId('target'))
       const source = ctx.sessions.create(SessionId('source'))
       for (const text of texts) appendText(source, text)
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const captured = source.snapshotEvents().at(-1)?.seq
       const read = vi.spyOn(ctx.sessionQuery, 'readSurface')
       const store = ctx.spillStore as RecordingSpill
@@ -372,7 +371,6 @@ describe('session reference spill outcomes', () => {
       const context = result.additionalContext!
       target.append('user/message', context, { surfaceOp: 'append' })
       for (const detach of detachSources) detach()
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const replayed = Session.create(SessionId('replayed'), target.snapshotEvents()).deriveMessages()
       expect(replayed).toEqual(target.deriveMessages())
       expect(JSON.stringify(replayed)).toContain('memory:session-reference-1.txt')
@@ -453,7 +451,6 @@ describe('session reference spill outcomes', () => {
       finish.resolve(undefined)
       await rejected
       await settled.promise
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(target.snapshotEvents().filter(event => event.type === 'user/message')).toEqual([])
     } finally { finish.resolve(undefined); await ctx.fiber.dispose() }
   })
@@ -1201,7 +1198,6 @@ describe('session reference discovery and preparation', () => {
     expect(JSON.stringify(before)).toContain('durable referenced fact')
     expect(JSON.stringify(before)).toContain('use @source')
     expect(JSON.stringify(before)).not.toContain('later source mutation')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(Session.create(SessionId('replayed-target'), target.snapshotEvents()).deriveMessages()).toEqual(before)
   })
 
diff --git a/packages/context/time-context/tests/time-context.spec.ts b/packages/context/time-context/tests/time-context.spec.ts
index 16e9a52a89..52700e6d62 100644
--- a/packages/context/time-context/tests/time-context.spec.ts
+++ b/packages/context/time-context/tests/time-context.spec.ts
@@ -68,7 +68,6 @@ function openMessageTurn(session: Session, turn: number, clientTimeZone?: string
 
 function contextTexts(session: Session): string[] {
   const texts: string[] = []
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   for (const event of session.snapshotEvents()) {
     if (event.type === 'user/message'
       && event.data.source.kind === 'plugin'
@@ -169,7 +168,6 @@ describe('durable step context', () => {
       + 'Browser time zone for this request: Asia/Shanghai. Interpret otherwise-unqualified dates and times in this zone.\n'
       + 'Elapsed since the preceding model-visible message: 1d 1h 1m 1s.',
     ])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const event = session.snapshotEvents().at(-1)
     expect(event?.type).toBe('user/message')
     if (event?.type !== 'user/message') throw new Error('missing time context')
@@ -293,9 +291,7 @@ describe('durable step context', () => {
     const original = Session.create(SessionId('seed-source'))
     openMessageTurn(original, 1)
     await fire(ctx, sessionAgent(original), 1, 1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const user = original.snapshotEvents().find(event => event.type === 'user/message' && event.data.source.kind === 'user')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const reading = original.snapshotEvents().find(event => event.type === 'user/message' && event.data.source.kind === 'plugin')
     if (user === undefined || reading === undefined) throw new Error('missing source surface events')
     original.append('user/message', createUserMessage({
@@ -308,17 +304,14 @@ describe('durable step context', () => {
     original.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
     expect(JSON.stringify(original.deriveMessages())).not.toContain('Time sampled while preparing')
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const resumed = Session.create(SessionId('resumed'), original.snapshotEvents())
     const resumedAgent = sessionAgent(resumed)
     vi.setSystemTime(BASE + 999)
     openMessageTurn(resumed, 2)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const beforeSkip = resumed.snapshotEvents().length
 
     await fire(ctx, resumedAgent, 2, 1)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(resumed.snapshotEvents()).toHaveLength(beforeSkip)
     expect(contextTexts(resumed)).toHaveLength(1)
 
@@ -341,7 +334,6 @@ describe('durable step context', () => {
 
     vi.setSystemTime(BASE + 500)
     openMessageTurn(first, 2)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const beforeSkip = first.snapshotEvents().length
     await fire(ctx, firstAgent, 2, 1)
 
@@ -349,7 +341,6 @@ describe('durable step context', () => {
     openMessageTurn(independent, 1)
     await fire(ctx, sessionAgent(independent, 'independent-agent'), 1, 1)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(first.snapshotEvents()).toHaveLength(beforeSkip)
     expect(contextTexts(first)).toHaveLength(1)
     expect(contextTexts(independent)).toHaveLength(1)
@@ -469,7 +460,6 @@ describe('real agent-loop request history', () => {
 
     expect(contextTexts(agent.session)).toHaveLength(0)
     expect(adapter.requests).toHaveLength(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'step/start')).toBe(false)
     await ctx.fiber.dispose()
   })
@@ -492,10 +482,8 @@ describe('real agent-loop request history', () => {
     await agent.whenIdle()
 
     expect(adapter.requests).toHaveLength(2)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const contexts = agent.session.snapshotEvents().filter(
       (event): event is SessionEvent<'user/message'> => event.type === 'user/message' && event.data.source.kind === 'plugin')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const starts = agent.session.snapshotEvents().filter(event => event.type === 'step/start')
     expect(contexts).toHaveLength(adapter.requests.length)
     expect(starts).toHaveLength(adapter.requests.length)
@@ -520,7 +508,6 @@ describe('real agent-loop request history', () => {
       expect(request.messages[0]?.role).toBe('system')
       expect(JSON.stringify(request.messages[0])).not.toContain('Time sampled while preparing')
     }
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const systemNodes = agent.session.snapshotEvents().filter(event => event.type === 'system/message')
     expect(JSON.stringify(systemNodes)).not.toContain('Time sampled while preparing')
     await ctx.fiber.dispose()
diff --git a/packages/context/tmux-context/tests/tmux-context.spec.ts b/packages/context/tmux-context/tests/tmux-context.spec.ts
index ef1b0e930c..bc9f9f0ed5 100644
--- a/packages/context/tmux-context/tests/tmux-context.spec.ts
+++ b/packages/context/tmux-context/tests/tmux-context.spec.ts
@@ -123,7 +123,6 @@ function openMessageTurn(session: Session, turn: number): void {
 
 function contextTexts(session: Session): string[] {
   const texts: string[] = []
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   for (const event of session.snapshotEvents()) {
     if (event.type === 'user/message'
       && event.data.source.kind === 'plugin'
@@ -172,7 +171,6 @@ describe('tmux-context injection', () => {
       + 'window active=1, pane active=0, '
       + 'layout d517,270x71,0,0{135x71,0,0,87,134x71,136,0[134x35,136,0,90,134x35,136,36,93]}',
     ])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const event = session.snapshotEvents().at(-1)
     if (event?.type !== 'user/message') throw new Error('missing tmux context')
     // `snapshot` form: one named contribution carrying exactly the reading the
diff --git a/packages/core/agent-loop/tests/agent-initiator.spec.ts b/packages/core/agent-loop/tests/agent-initiator.spec.ts
index f25740593a..0b9d32ec06 100644
--- a/packages/core/agent-loop/tests/agent-initiator.spec.ts
+++ b/packages/core/agent-loop/tests/agent-initiator.spec.ts
@@ -335,7 +335,6 @@ describe('AgentLoop initiator scope', () => {
     }])
     const schema = adapter.requests[0]?.tools?.find(tool => tool.name === 'capability-request')
     expect(JSON.stringify(schema?.parameters)).not.toMatch(/session|harness/i)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const call = handle.agent.session.snapshotEvents().find(event => event.type === 'tool/call')
     expect(call?.type === 'tool/call' ? call.data.arguments : undefined)
       .toBe(JSON.stringify({ path: '/v1/capability' }))
diff --git a/packages/core/agent-loop/tests/agent.spec.ts b/packages/core/agent-loop/tests/agent.spec.ts
index 1d5ea1ac41..2ec5bcf01c 100644
--- a/packages/core/agent-loop/tests/agent.spec.ts
+++ b/packages/core/agent-loop/tests/agent.spec.ts
@@ -35,7 +35,6 @@ describe('Agent', () => {
 
     agent.inject(createUserMessage({ content: [{ type: 'text', text: 'context' }], source: { kind: 'plugin', plugin: 'p' } }))
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().map(event => event.type)).toEqual(['agent/inbox/spliced'])
     expect(agent.status).toBe('idle')
     expect(adapter.requests).toHaveLength(0)
@@ -48,7 +47,6 @@ describe('Agent', () => {
 
     agent.inject(createUserMessage({ content: [{ type: 'text', text: 'empty plugin source' }], source: { kind: 'plugin', plugin: '' } }))
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const injected = agent.session.snapshotEvents().at(-1)
     expect(injected?.type === 'agent/inbox/spliced' && injected.data.inserted[0]?.source)
       .toEqual({ kind: 'plugin', plugin: '' })
@@ -99,7 +97,6 @@ describe('Agent', () => {
     expect(() => {
       agent.inject(createUserMessage({ content: [{ type: 'text', text: 'x', bad: 1n } as never], source: { kind: 'plugin', plugin: 'p' } }))
     }).toThrow(/non-JSON-serializable/)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents()).toHaveLength(0)
   })
 
@@ -111,7 +108,6 @@ describe('Agent', () => {
     agent.steer(createUserMessage({ content: [{ type: 'text', text: 'steer idle' }], source: { kind: 'plugin', plugin: 'test' } }))
     await agent.whenIdle()
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'user/message')).toBe(true)
     expect(adapter.requests).toHaveLength(1)
   })
diff --git a/packages/core/agent-loop/tests/cancel.spec.ts b/packages/core/agent-loop/tests/cancel.spec.ts
index 00d9339fa6..2b1781083c 100644
--- a/packages/core/agent-loop/tests/cancel.spec.ts
+++ b/packages/core/agent-loop/tests/cancel.spec.ts
@@ -50,7 +50,6 @@ function waitForIdle(ctx: Context, agent: Agent): Promise<void> {
 
 /** All user-message texts recorded in the log (to assert what actually ran). */
 function userTexts(agent: Agent): string[] {
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return agent.session.snapshotEvents()
     .filter(e => e.type === 'user/message')
     .flatMap(e => e.type === 'user/message' ? e.data.content : [])
@@ -72,7 +71,6 @@ describe('Agent.cancel()', () => {
 
     // The prompt ran: its user message is in the log and one turn completed.
     expect(userTexts(agent)).toEqual(['real prompt'])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'turn/end')).toBe(true)
   })
 
@@ -88,14 +86,12 @@ describe('Agent.cancel()', () => {
     // A waking send starts and claims synchronously, so keepInbox has no
     // pending item to preserve by the time this cancellation runs.
     agent.cancel({ kind: 'user' }, { keepInbox: true })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event =>
       event.type === 'agent/inbox/spliced' && event.data.outcome === 'canceled')).toBe(false)
     await agent.whenIdle()
     expect(agent.inbox.nextTurn).toHaveLength(0)
     expect(userTexts(agent)).toEqual([])
     expect(adapter.requests).toHaveLength(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')?.data.reason)
       .toEqual({ kind: 'aborted', reason: { kind: 'user' } })
 
@@ -150,7 +146,6 @@ describe('Agent.cancel()', () => {
     expect(userTexts(agent)).toEqual(['active', 'B'])
     expect(adapter.requests).toHaveLength(2)
     expect(agent.inbox.nextTurn).toHaveLength(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(e => e.type === 'turn/end').map(e =>
       e.type === 'turn/end' ? e.data.reason : null)).toEqual([
       { kind: 'aborted', reason: { kind: 'user' } },
@@ -201,7 +196,6 @@ describe('Agent.cancel()', () => {
     expect(agent.status).toBe('idle')
     // No replay with nothing to run: the latched message is gone, so no
     // empty follow-up turn is recorded.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(e => e.type === 'turn/start')).toHaveLength(1)
   })
 
@@ -261,11 +255,8 @@ describe('Agent.cancel()', () => {
     await new Promise(r => setTimeout(r, 30))
 
     expect(userTexts(agent)).toEqual([])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'step/start')).toHaveLength(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')?.data.reason)
       .toEqual({ kind: 'aborted', reason: { kind: 'user' } })
     expect(agent.status).toBe('idle')
@@ -295,7 +286,6 @@ describe('Agent.cancel()', () => {
     await driverDone(agent)
 
     expect(agent.status).toBe('idle')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'turn/start')).toBe(false)
     expect(userTexts(agent)).toEqual([])
     expect(adapter.requests).toHaveLength(0)
@@ -333,7 +323,6 @@ describe('Agent.cancel()', () => {
       replacementObservation = agent.whenIdle().then(() => ({
         status: agent.status,
         requests: adapter.requests.length,
-        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         turns: agent.session.snapshotEvents().filter(event => event.type === 'turn/start').length,
       }))
       agent.cancel({ kind: 'user' })
@@ -411,7 +400,6 @@ describe('Agent.cancel()', () => {
 
     expect(reasons).toEqual([{ kind: 'aborted', reason: { kind: 'user' } }])
     expect(userTexts(agent)).toEqual(['go'])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(1)
     expect(adapter.requests).toHaveLength(1)
   })
@@ -448,9 +436,7 @@ describe('Agent.cancel()', () => {
 
     expect(executions).toBe(0)
     expect(reasons).toEqual([{ kind: 'aborted', reason: { kind: 'user' } }])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const call = agent.session.snapshotEvents().find(event => event.type === 'tool/call')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const result = agent.session.snapshotEvents().find(event => event.type === 'tool/result')
     expect(call?.type === 'tool/call' ? call.data.callId : undefined).toBe('c1')
     expect(result?.type === 'tool/result' ? result.data : undefined).toMatchObject({
@@ -491,7 +477,6 @@ describe('Agent.cancel()', () => {
 
     expect(userTexts(agent)).toContain('second')
     // The second turn completed (its reply was streamed).
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const reasons = agent.session.snapshotEvents().filter(e => e.type === 'turn/end')
     expect(reasons.length).toBe(2)
   })
@@ -508,7 +493,6 @@ describe('Agent.cancel()', () => {
 
     // The prefix the user watched stream is committed as the step's message,
     // carrying the truncation marker and exact embedded stream that delivered it.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const message = agent.session.snapshotEvents().find(e => e.type === 'assistant/message')
     expect(message?.type === 'assistant/message' ? message.data.message.content : undefined)
       .toEqual([{ type: 'text', text: 'partial' }])
@@ -519,7 +503,6 @@ describe('Agent.cancel()', () => {
       ))
       : false).toBe(true)
     expect(message?.sourceEventSeqs).toBeUndefined()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const types = agent.session.snapshotEvents().map(e => e.type)
     expect(types.indexOf('assistant/message')).toBeLessThan(types.indexOf('step/end'))
     expect(types.indexOf('step/end')).toBeLessThan(types.indexOf('turn/end'))
@@ -554,14 +537,12 @@ describe('Agent.cancel()', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const message = agent.session.snapshotEvents().find(event => event.type === 'assistant/message')
     expect(message?.type === 'assistant/message' ? message.data.message.source.replayState : undefined)
       .toEqual(replayState)
     expect(message?.type === 'assistant/message' ? message.data.interrupted : undefined).toBe(true)
     expect(() => Session.fromRestore(
       agent.session.id,
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       structuredClone([...agent.session.snapshotEvents()]),
       structuredClone(agent.session.header),
       SessionLogOffset(0),
@@ -585,7 +566,6 @@ describe('Agent.cancel()', () => {
     agent.cancel({ kind: 'user' })
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const message = agent.session.snapshotEvents().find(e => e.type === 'assistant/message')
     expect(message?.type === 'assistant/message' ? message.data.message.content : undefined)
       .toEqual([{ type: 'reasoning', text: 'thinking about it' }])
@@ -613,11 +593,9 @@ describe('Agent.cancel()', () => {
     await waitForIdle(ctx, agent)
 
     // The undispatched call is dropped whole — no dangling tool_use to pair.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const message = agent.session.snapshotEvents().find(e => e.type === 'assistant/message')
     expect(message?.type === 'assistant/message' ? message.data.message.content : undefined)
       .toEqual([{ type: 'text', text: 'reading the file' }])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'tool/call')).toBe(false)
   })
 
@@ -640,9 +618,7 @@ describe('Agent.cancel()', () => {
 
     // The failed stream's prefix stays off the surface: clients reset it on
     // retry, and provider failures commit nothing.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'assistant/message')).toBe(false)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = agent.session.snapshotEvents().find(e => e.type === 'turn/end')
     expect(end?.type === 'turn/end' ? end.data.reason.kind : undefined).toBe('aborted')
   })
@@ -663,14 +639,12 @@ describe('Agent.cancel()', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const messages = agent.session.snapshotEvents().filter(e => e.type === 'assistant/message')
     expect(messages).toHaveLength(1)
     const message = messages[0]!
     expect(message.type === 'assistant/message' ? message.data.message.content : undefined)
       .toEqual([{ type: 'text', text: 'recovered' }])
     expect(message.type === 'assistant/message' ? message.data.interrupted : undefined).toBeUndefined()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const failed = agent.session.snapshotEvents().find(e => e.type === 'assistant/attempt')
     expect(failed?.type === 'assistant/attempt'
       ? expandAssistantStream(failed.data.stream).some(member => (
@@ -702,12 +676,10 @@ describe('Agent.cancel()', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const attempt = agent.session.snapshotEvents().find(event => event.type === 'assistant/attempt')
     expect(attempt?.type === 'assistant/attempt'
       ? expandAssistantStream(attempt.data.stream).map(member => member.chunk)
       : []).toContainEqual({ type: 'text-delta', index: 0, text: 'partial before failure' })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().find(event => event.type === 'turn/end')).toMatchObject({
       type: 'turn/end', data: { reason: { kind: 'error', error: { message: failure.message } } },
     })
@@ -728,7 +700,6 @@ describe('Agent.cancel()', () => {
     agent.cancel({ kind: 'user' })
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'assistant/message')).toBe(false)
   })
 
@@ -758,7 +729,6 @@ describe('Agent.cancel()', () => {
     // log is balanced (the open step was closed by the cancel branch).
     expect(streamed).toBe(false)
     expect(reasons).toEqual([{ kind: 'aborted', reason: { kind: 'user' } }])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const types = agent.session.snapshotEvents().map(e => e.type)
     expect(types.filter(t => t === 'step/start').length).toBe(types.filter(t => t === 'step/end').length)
   })
@@ -794,9 +764,7 @@ describe('Agent.cancel()', () => {
 
     expect(streamed).toBe(false)
     expect(adapter.requests).toHaveLength(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'turn/end')).toBe(false)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const types = agent.session.snapshotEvents().map(e => e.type)
     expect(types.filter(t => t === 'step/start').length).toBe(types.filter(t => t === 'step/end').length)
   })
@@ -850,7 +818,6 @@ describe('Agent.cancel()', () => {
     // No turn opened, no step streamed, and a later prompt still runs (the marker
     // was reset).
     expect(streamed).toBe(false)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'turn/start')).toBe(false)
   })
 
@@ -882,7 +849,6 @@ describe('Agent.cancel()', () => {
     await replacementIdle
     expect(userTexts(agent)).toEqual(['B', 'C'])
     expect(adapter.requests).toHaveLength(2)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/end')).toHaveLength(2)
   })
 
@@ -906,7 +872,6 @@ describe('Agent.cancel()', () => {
     await replacementIdle
     expect(userTexts(agent)).toEqual(['B', 'C'])
     expect(adapter.requests).toHaveLength(2)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/end')).toHaveLength(3)
   })
 
@@ -928,11 +893,9 @@ describe('Agent.cancel()', () => {
     // started from the dropped steering.
     await new Promise(r => setTimeout(r, 30))
     expect(agent.status).toBe('idle')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnStarts = agent.session.snapshotEvents().filter(e => e.type === 'turn/start')
     expect(turnStarts.length).toBe(1) // only the original (cancelled) turn
     // The steering text was dropped — it never reached the log.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const flat = agent.session.snapshotEvents()
       .filter(e => e.type === 'user/message')
       .flatMap(e => e.data.content)
@@ -964,7 +927,6 @@ describe('Agent.cancel()', () => {
             status: agent.status,
             requests: adapter.requests.length,
             users: userTexts(agent),
-            // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
             events: agent.session.snapshotEvents().map(event => event.type),
           })}`))
         }, 1000)
@@ -976,7 +938,6 @@ describe('Agent.cancel()', () => {
     expect(adapter.requests).toHaveLength(2)
     expect(userTexts(agent)).toEqual(['original', 'replacement'])
     expect(agent.inbox.nextTurn).toHaveLength(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const reasons = agent.session.snapshotEvents()
       .filter(event => event.type === 'turn/end')
       .map(event => event.type === 'turn/end' ? event.data.reason : undefined)
@@ -1004,7 +965,6 @@ describe('Agent.cancel()', () => {
     const runtimeReason: unknown = adapter.requests[0]?.signal?.reason
     expect(runtimeReason).toEqual({ kind: 'parent' })
     expect(runtimeReason).toBe(supplied)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')
     expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason).toEqual({
       kind: 'aborted',
@@ -1026,7 +986,6 @@ describe('Agent.cancel()', () => {
     agent.cancel({ kind: 'user' })
     await handle.dispose()
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')
     expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason).toEqual({ kind: 'aborted', reason: { kind: 'user' } })
   })
@@ -1098,7 +1057,6 @@ describe('Agent.cancel()', () => {
     const idle = agent.whenIdle()
     agent.cancel({ kind: 'user' })
     await idle
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')
     expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason)
       .toEqual({ kind: 'aborted', reason: { kind: 'user' } })
diff --git a/packages/core/agent-loop/tests/contract-regressions.spec.ts b/packages/core/agent-loop/tests/contract-regressions.spec.ts
index 841bbbd63f..68cb93f129 100644
--- a/packages/core/agent-loop/tests/contract-regressions.spec.ts
+++ b/packages/core/agent-loop/tests/contract-regressions.spec.ts
@@ -72,7 +72,6 @@ describe('assistant replay provider and model fields', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const recorded = agent.session.snapshotEvents().find(event => event.type === 'assistant/message')
     expect(recorded?.type === 'assistant/message' && recorded.data.message.source).toEqual({
       kind: 'model', provider: 'mock', model: 'next-model', replayState,
@@ -112,7 +111,6 @@ describe('abort during tool execution ends the turn', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents()
       .filter(event => event.type === 'tool/result'
         || (event.type === 'user/message' && event.data.source.kind === 'plugin')
@@ -126,7 +124,6 @@ describe('abort during tool execution ends the turn', () => {
     send(agent, 'wake')
     await idle
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents()
       .flatMap(event => event.type === 'user/message' && event.data.source.kind === 'plugin'
         ? [event.data.content]
@@ -177,7 +174,6 @@ describe('abort during tool execution ends the turn', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = agent.session.snapshotEvents()
     expect(events
       .filter(event => event.type === 'tool/result'
@@ -203,11 +199,9 @@ describe('abort during tool execution ends the turn', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
     expect(adapter.requests).toHaveLength(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start'
       || event.type === 'step/start' || event.type === 'turn/end').map(event => event.type))
       .toEqual(['turn/start', 'turn/end'])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().find(event => event.type === 'turn/end')?.data)
       .toEqual({ turn: 1, reason: { kind: 'completed' } })
     expect(agent.inbox.nextTurn).toHaveLength(0)
@@ -249,23 +243,19 @@ describe('abort during tool execution ends the turn', () => {
     await started.promise
     await fiber.dispose()
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents()
       .flatMap(event => event.type === 'user/message' && event.data.source.kind === 'plugin'
         ? [event.data.content]
         : []))
       .toEqual([])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents()
       .flatMap(event => event.type === 'agent/inbox/spliced' && event.data.target === 'next-step'
         ? [event.data.inserted.map(inboxText)]
         : [])
       .at(-1))
       .toEqual(['accepted result context during disposal'])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start'))
       .toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().find(event => event.type === 'turn/end')?.data.reason)
       .toEqual({ kind: 'aborted', reason: { kind: 'disposed' } })
   })
@@ -320,7 +310,6 @@ describe('abort during tool execution ends the turn', () => {
     send(agent, 'start a text-only turn')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event =>
       event.type === 'user/message' && event.data.source.kind === 'plugin'
         ? [event.data.content]
@@ -373,7 +362,6 @@ describe('plugin exceptions are contained', () => {
 
     send(agent, 'first')
     await waitForIdle(ctx, agent)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')).toMatchObject({
       data: { reason: { kind: 'error', error: { message: 'broken continuation plugin', code: 'UNKNOWN' } } },
     })
@@ -410,9 +398,7 @@ describe('disposal leaves the two-state status contract balanced', () => {
 
     expect(statuses).toEqual(['running', 'idle'])
     expect(reasons).toEqual([{ kind: 'aborted', reason: { kind: 'disposed' } }])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const messages = agent.session.snapshotEvents()
       .filter(event => event.type === 'user/message')
       .flatMap(event => event.data.content)
@@ -462,7 +448,6 @@ describe('adapter registration, routing, and accepted-input ownership', () => {
 
     send(agent, 'go')
     await waitForIdle(ctx, agent)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')
     expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason.kind === 'error'
       ? turnEnd.data.reason.error.message
@@ -525,7 +510,6 @@ describe('adapter registration, routing, and accepted-input ownership', () => {
       ['content', 'id', 'role', 'source'],
     ])
     expect(targets).toEqual(['next-turn', 'next-step'])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const steeringSources = agent.session.snapshotEvents().flatMap(e =>
       e.type === 'user/message' && e.data.source.kind === 'plugin' ? [e.data.source] : [])
     expect(steeringSources).toEqual([{ kind: 'plugin', plugin: 'goal' }])
@@ -559,7 +543,6 @@ describe('adapter registration, routing, and accepted-input ownership', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = agent.session.snapshotEvents()
     const claims = events.flatMap(event => event.type === 'agent/inbox/spliced'
       && event.data.target === 'next-step'
@@ -605,7 +588,6 @@ describe('turn numbering continues across seeded sessions', () => {
 
     const { agent: forked } = await ctx2.agents.create({
       sessionId: SessionId('forked'),
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       seed: agent.session.snapshotEvents(),
       agentOptions: { provider: 'mock', model: 'mock' },
     })
@@ -674,7 +656,6 @@ describe('a finish-error stream chunk ends the turn as error, not completed', ()
     expect(errors[0]).toBeInstanceOf(LlmError)
     expect((errors[0] as LlmError).failure).toEqual(failure)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = agent.session.snapshotEvents()
     const turnEnd = events.find(event => event.type === 'turn/end')
     expect(turnEnd).toMatchObject({ data: { reason: { kind: 'error', error: failure } } })
@@ -697,7 +678,6 @@ describe('a finish-error stream chunk ends the turn as error, not completed', ()
     await waitForIdle(ctx, agent)
 
     expect(reasons).toEqual([{ kind: 'error', error: { message: 'model stream aborted', code: 'ABORTED' } }])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'assistant/message')).toBe(false)
   })
 
@@ -728,7 +708,6 @@ describe('step boundary publication order', () => {
     const observed: { turn: number; step: number; lastEventType: string | undefined; sawStepStart: boolean }[] = []
     ctx.on('session/event', (subject, event) => {
       if (subject !== agent.session || event.type !== 'step/start') return
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const events = subject.snapshotEvents()
       const last = events.at(-1)
       observed.push({
@@ -765,7 +744,6 @@ describe('turn and step boundary recovery', () => {
 
   /** Count turn/step boundary events for balance assertions. */
   function boundaryCounts(agent: Agent) {
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const e = agent.session.snapshotEvents()
     return {
       turnStart: e.filter(x => x.type === 'turn/start').length,
@@ -796,7 +774,6 @@ describe('turn and step boundary recovery', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const e = agent.session.snapshotEvents()
     const c = boundaryCounts(agent)
     expect(c).toMatchObject({ turnStart: 1, turnEnd: 1, stepStart: 1, stepEnd: 1, errors: 0 })
@@ -830,7 +807,6 @@ describe('turn and step boundary recovery', () => {
     send(agent, 'rejected')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'turn/start'
       || event.type === 'user/message')).toBe(false)
     expect(agent.inbox.nextTurn).toHaveLength(1)
@@ -862,7 +838,6 @@ describe('turn and step boundary recovery', () => {
       stepEnd: 0,
       errors: 1,
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')).toMatchObject({
       data: { reason: { kind: 'error', error: { message: 'reject step-start before commit', code: 'UNKNOWN' } } },
     })
@@ -956,7 +931,6 @@ describe('turn and step boundary recovery', () => {
     await fiber.dispose() // dispose during the hanging step
     await driverDone(agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const e = agent.session.snapshotEvents()
     const turnStarts = e.filter(x => x.type === 'turn/start').length
     const turnEnds = e.filter(x => x.type === 'turn/end').length
@@ -990,7 +964,6 @@ describe('turn and step boundary recovery', () => {
     send(agent, 'go')
     await agent.whenIdle()
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const e = agent.session.snapshotEvents()
     expect(e.filter(x => x.type === 'turn/start' || x.type === 'turn/end').map(x => x.type))
       .toEqual(['turn/start', 'turn/end'])
@@ -1020,14 +993,11 @@ describe('turn and step boundary recovery', () => {
     expect(errors).toEqual([])
     // Session contains the observer failure per listener, so the committed turn
     // remains visible to later observers and executes normally.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const types = agent.session.snapshotEvents().map(e => e.type)
     expect(types.filter(t => t === 'turn/start')).toHaveLength(1)
     expect(types.filter(t => t === 'turn/end')).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const lastBoundary = agent.session.snapshotEvents().findLast(e => e.type === 'turn/start' || e.type === 'turn/end')
     expect(lastBoundary?.type).toBe('turn/end')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().at(-1)?.type).toBe('turn/end')
 
     // loop survives: a second turn runs normally.
@@ -1060,7 +1030,6 @@ describe('turn and step boundary recovery', () => {
       .toEqual({ kind: 'completed' })
 
     // step/end precedes turn/end (ordering contract)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const e = agent.session.snapshotEvents()
     const stepEndIdx = e.findIndex(x => x.type === 'step/end')
     const turnEndIdx = e.findIndex(x => x.type === 'turn/end')
@@ -1095,7 +1064,6 @@ describe('turn and step boundary recovery', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const e = agent.session.snapshotEvents()
     // Both step/end and turn/end are present — finalization ran to completion.
     expect(e.some(x => x.type === 'step/end')).toBe(true)
@@ -1126,7 +1094,6 @@ describe('turn and step boundary recovery', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
     // turn 1 is balanced despite the throwing turn/end listener.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const e1 = agent.session.snapshotEvents()
     expect(e1.filter(x => x.type === 'turn/start')).toHaveLength(1)
     expect(e1.filter(x => x.type === 'turn/end')).toHaveLength(1)
@@ -1136,7 +1103,6 @@ describe('turn and step boundary recovery', () => {
     send(agent, 'again')
     await waitForIdle(ctx, agent)
     expect(adapter.requests).toHaveLength(2)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(x => x.type === 'turn/end')).toHaveLength(2)
   })
 })
@@ -1169,7 +1135,6 @@ describe('tool result call identity', () => {
     await waitForIdle(ctx, agent)
 
     // The logged tool/result.callId is the originating call.id.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const resultEvent = agent.session.snapshotEvents().find(e => e.type === 'tool/result')
     expect(resultEvent?.type).toBe('tool/result')
     if (resultEvent?.type === 'tool/result') {
@@ -1234,7 +1199,6 @@ describe('disposal and cancellation during pre-step assembly', () => {
     await driverDone(agent)
     unlisten()
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const e = agent.session.snapshotEvents()
     expect(e.filter(x => x.type === 'turn/start' || x.type === 'turn/end').map(x => x.type))
       .toEqual(['turn/start', 'turn/end'])
@@ -1283,7 +1247,6 @@ describe('disposal and cancellation during pre-step assembly', () => {
     await driverDone(agent)
     unlisten()
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const e = agent.session.snapshotEvents()
     expect(e.filter(x => x.type === 'turn/start' || x.type === 'turn/end').map(x => x.type))
       .toEqual(['turn/start', 'turn/end'])
@@ -1334,7 +1297,6 @@ describe('disposal and cancellation during pre-step assembly', () => {
     await driverDone(agent)
 
     // The post-listener cancellation check catches disposal before any step or LLM call.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const e = agent.session.snapshotEvents()
     expect(e.filter(x => x.type === 'turn/start' || x.type === 'turn/end').map(x => x.type))
       .toEqual(['turn/start', 'turn/end'])
@@ -1382,7 +1344,6 @@ describe('disposal and cancellation during pre-step assembly', () => {
     await fiber.dispose()
     await driverDone(agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const e = agent.session.snapshotEvents()
     expect(e.filter(x => x.type === 'turn/start' || x.type === 'turn/end').map(x => x.type))
       .toEqual(['turn/start', 'turn/end'])
@@ -1428,7 +1389,6 @@ describe('disposal and cancellation during pre-step assembly', () => {
     await disposalDone
     await driverDone(agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const e = agent.session.snapshotEvents()
     expect(e.filter(x => x.type === 'turn/start' || x.type === 'turn/end').map(x => x.type))
       .toEqual(['turn/start', 'turn/end'])
diff --git a/packages/core/agent-loop/tests/coverage-edges.spec.ts b/packages/core/agent-loop/tests/coverage-edges.spec.ts
index f18e662e61..1fa24977b2 100644
--- a/packages/core/agent-loop/tests/coverage-edges.spec.ts
+++ b/packages/core/agent-loop/tests/coverage-edges.spec.ts
@@ -69,14 +69,12 @@ describe('tool JSON parse', () => {
     await waitForIdle(ctx, agent)
 
     // tool/call event should have recorded the raw arguments string
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const callEvent = agent.session.snapshotEvents().find(e => e.type === 'tool/call')
     expect(callEvent).toBeDefined()
     if (callEvent!.type === 'tool/call') {
       expect(callEvent!.data.arguments).toBe('not json')
     }
     // the loop did not crash — a result was produced
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'tool/result')).toBe(true)
   })
 
@@ -103,7 +101,6 @@ describe('tool JSON parse', () => {
     send(agent, 'use tool')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'tool/result')).toBe(true)
   })
 })
@@ -133,11 +130,8 @@ describe('thrown-value propagation', () => {
     expect(errors).toHaveLength(1)
     expect(errors[0]).toBe('naked string error')
     expect(adapter.requests).toHaveLength(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const starts = agent.session.snapshotEvents().filter(event => event.type === 'turn/start')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const ends = agent.session.snapshotEvents().filter(event => event.type === 'turn/end')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const messages = agent.session.snapshotEvents().filter(event => event.type === 'user/message')
     expect(starts).toHaveLength(0)
     expect(ends).toHaveLength(0)
@@ -161,7 +155,6 @@ describe('thrown-value propagation', () => {
 
     send(agent, 'go')
     await waitForIdle(ctx, agent)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = agent.session.snapshotEvents().find(e => e.type === 'turn/end')
     expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason.kind === 'error'
       ? turnEnd.data.reason.error.message
@@ -187,7 +180,6 @@ describe('durable error rendering', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = agent.session.snapshotEvents().find(e => e.type === 'turn/end')
     expect(turnEnd).toBeDefined()
     if (turnEnd?.type === 'turn/end' && turnEnd.data.reason.kind === 'error') {
@@ -244,7 +236,6 @@ describe('structured tool error propagation (the runtime-validation Agent Note,
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const toolResult = agent.session.snapshotEvents().find(e => e.type === 'tool/result')
     expect(toolResult?.type === 'tool/result' && toolResult.data.message.content[0].isError).toBe(true)
     expect(toolResult?.type === 'tool/result' && toolResult.data.error)
@@ -271,7 +262,6 @@ describe('request-error action edges', () => {
 
     // One failed request, no retry turn.
     expect(adapter.requests).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const ends = agent.session.snapshotEvents().filter(e => e.type === 'turn/end')
     expect(ends).toHaveLength(1)
   })
@@ -294,7 +284,6 @@ describe('request-error action edges', () => {
     await agent.whenIdle()
 
     expect(adapter.requests).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = agent.session.snapshotEvents().findLast(e => e.type === 'turn/end')
     expect(end?.type === 'turn/end' && end.data.reason.kind).toBe('aborted')
   })
@@ -324,7 +313,6 @@ describe('stream failure edges', () => {
 
     // No facts -> not offered to recovery; the turn fails through settle().
     expect(recoveries).toBe(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = agent.session.snapshotEvents().findLast(e => e.type === 'turn/end')
     expect(end?.type === 'turn/end' && end.data.reason.kind).toBe('error')
   })
@@ -400,7 +388,6 @@ describe('tool result meta persistence', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const result = agent.session.snapshotEvents().find(e => e.type === 'tool/result')
     expect(result?.type === 'tool/result' && result.data.meta).toEqual({ presentation: 'diff-card' })
   })
@@ -449,7 +436,6 @@ describe('recovery without a retry action', () => {
 
     expect(recoveries).toBe(1)
     expect(adapter.requests).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = agent.session.snapshotEvents().findLast(e => e.type === 'turn/end')
     expect(end?.type === 'turn/end' && end.data.reason.kind).toBe('error')
   })
@@ -475,7 +461,6 @@ describe('unrenderable failure settlement', () => {
     send(agent, 'go')
     await agent.whenIdle()
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = agent.session.snapshotEvents().findLast(e => e.type === 'turn/end')
     expect(end?.type === 'turn/end' && end.data.reason.kind).toBe('error')
     if (end?.type === 'turn/end' && end.data.reason.kind === 'error') {
@@ -517,7 +502,6 @@ describe('driver bookkeeping edges', () => {
 
     expect(proposals).toBe(2)
     expect(adapter.requests).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')
     expect(end?.type === 'turn/end' && end.data.reason).toEqual({ kind: 'blocked' })
   })
@@ -540,10 +524,8 @@ describe('driver bookkeeping edges', () => {
     send(agent, 'go')
     await agent.whenIdle()
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const types = agent.session.snapshotEvents().map(e => e.type)
     expect(types.filter(t => t === 'step/end')).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = agent.session.snapshotEvents().findLast(e => e.type === 'turn/end')
     expect(end?.type === 'turn/end' && end.data.reason.kind).toBe('error')
   })
diff --git a/packages/core/agent-loop/tests/inbox.spec.ts b/packages/core/agent-loop/tests/inbox.spec.ts
index 021e2339f7..028c42ca5c 100644
--- a/packages/core/agent-loop/tests/inbox.spec.ts
+++ b/packages/core/agent-loop/tests/inbox.spec.ts
@@ -142,7 +142,6 @@ describe('ReactLoopInbox', () => {
     const childAgent = stubAgent('inbox-fork-child', { ctx, session: child })
     const childInbox = new ReactLoopInbox(ctx.sessionProjections, child, agentEvents(ctx, childAgent))
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.inheritedEventCount).toBe(parent.snapshotEvents().length)
     expect(childInbox.nextTurn).toEqual([inherited])
 
@@ -247,7 +246,6 @@ describe('ReactLoopInbox', () => {
     const nextStep = createUserMessage({ content: [{ type: 'text', text: 'step' }], source: { kind: 'user' } })
     agent.inbox.append('next-turn', nextTurn)
     agent.inbox.append('next-step', nextStep)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const beforeClear = session.snapshotEvents().length
 
     agent.inbox.clear()
@@ -255,7 +253,6 @@ describe('ReactLoopInbox', () => {
     expect(agent.inbox.nextTurn).toEqual([])
     expect(agent.inbox.nextStep).toEqual([])
     expect(discarded).toEqual([nextStep, nextTurn])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().slice(beforeClear).map(event => event.type === 'agent/inbox/spliced'
       ? event.data
       : event.type)).toEqual([
@@ -264,7 +261,6 @@ describe('ReactLoopInbox', () => {
     ])
 
     agent.inbox.clear()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(beforeClear + 2)
   })
 })
diff --git a/packages/core/agent-loop/tests/interception.spec.ts b/packages/core/agent-loop/tests/interception.spec.ts
index 3decd9499e..b50fb45942 100644
--- a/packages/core/agent-loop/tests/interception.spec.ts
+++ b/packages/core/agent-loop/tests/interception.spec.ts
@@ -57,7 +57,6 @@ function send(agent: Agent, text: string) {
 }
 
 function events(agent: Agent): readonly SessionEvent[] {
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return agent.session.snapshotEvents()
 }
 
diff --git a/packages/core/agent-loop/tests/loop.spec.ts b/packages/core/agent-loop/tests/loop.spec.ts
index 68b8683cb0..fb98a37e31 100644
--- a/packages/core/agent-loop/tests/loop.spec.ts
+++ b/packages/core/agent-loop/tests/loop.spec.ts
@@ -53,7 +53,6 @@ function systemOf(request: GenerateOptions | undefined): string | undefined {
 
 /** All user-message texts recorded in the log (to assert what actually ran). */
 function userTexts(agent: Agent): string[] {
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return agent.session.snapshotEvents()
     .filter(e => e.type === 'user/message')
     .flatMap(e => e.type === 'user/message' ? e.data.content : [])
@@ -73,7 +72,6 @@ describe('agent loop', () => {
       if (subject !== agent) return
       frames.push(frame)
       if (frame.type === 'end' && frame.outcome.kind === 'committed') {
-        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         committedAfterMessage = agent.session.snapshotEvents().at(-1)?.type === 'assistant/message'
       }
     })
@@ -93,9 +91,7 @@ describe('agent loop', () => {
       (frame): frame is Extract<AssistantStreamFrame, { type: 'chunk' }> => frame.type === 'chunk',
     )
     expect(chunks.map(frame => frame.index)).toEqual(chunks.map((_frame, index) => index))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => (event.type as string) === 'assistant/chunk')).toBe(false)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const message = agent.session.snapshotEvents().findLast(event => event.type === 'assistant/message')
     expect(message?.type === 'assistant/message'
       ? expandAssistantStream(message.data.stream).map(member => member.chunk)
@@ -137,7 +133,6 @@ describe('agent loop', () => {
       type: 'end',
       outcome: { kind: 'abandoned' },
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'assistant/message')).toBe(false)
   })
 
@@ -165,11 +160,9 @@ describe('agent loop', () => {
       index: 2,
       outcome: { kind: 'abandoned' },
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => (
       event.type === 'assistant/message' || event.type === 'assistant/attempt'
     ))).toBe(false)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
       type: 'turn/end',
       data: { reason: { kind: 'error' } },
@@ -225,7 +218,6 @@ describe('agent loop', () => {
     await waitForIdle(ctx, agent)
 
     expect(frames).toEqual([])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
       type: 'turn/end',
       data: { reason: { kind: 'error' } },
@@ -441,7 +433,6 @@ describe('agent loop', () => {
 
     expect(userTexts(agent)).toEqual([])
     expect(adapter.requests).toEqual([])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(e => e.type === 'turn/start')).toHaveLength(0)
   })
 
@@ -465,14 +456,12 @@ describe('agent loop', () => {
 
     expect(order).toEqual(['turn/start', 'step/start', 'step/end', 'turn/end'])
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const types = agent.session.snapshotEvents().map(e => e.type)
     // Durable inbox receipt precedes the turn-owned transcript.
     expect(types[0]).toBe('agent/inbox/spliced')
     expect(types).toContain('turn/start')
     expect(types).toContain('user/message')
     expect(types).toContain('assistant/message')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const assistantMessage = agent.session.snapshotEvents().find(e => e.type === 'assistant/message')
     expect(assistantMessage?.type === 'assistant/message' && assistantMessage.data.usage).toEqual({ inputTokens: 10, outputTokens: 'hello there'.length })
     expect(types.at(-1)).toBe('turn/end')
@@ -515,7 +504,6 @@ describe('agent loop', () => {
     expect((block).content).toEqual([{ type: 'text', text: 'echo: ping' }])
 
     // session log records call + result
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const types = agent.session.snapshotEvents().map(e => e.type)
     expect(types).toContain('tool/call')
     expect(types).toContain('tool/result')
@@ -578,7 +566,6 @@ describe('agent loop', () => {
     expect(errors.map(error => error.message)).toEqual([
       'prompt variable "{{cwd}}" has no value for this assembly (section "deployment:persona-prefix")',
     ])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = agent.session.snapshotEvents().find(e => e.type === 'turn/end')
     expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason.kind).toBe('error')
     expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason.kind === 'error'
@@ -596,7 +583,6 @@ describe('agent loop', () => {
 
     expect(adapter.requests).toHaveLength(1)
     expect(systemOf(adapter.requests[0])).toBe('You are an AI agent powered by DeepSeek Harness.\n\nIn /rescued.')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnds = agent.session.snapshotEvents().filter(e => e.type === 'turn/end')
     expect(turnEnds).toHaveLength(2)
     expect(turnEnds[1]?.type === 'turn/end' && turnEnds[1].data.reason.kind).toBe('completed')
@@ -644,7 +630,6 @@ describe('agent loop', () => {
     expect(adapter.requests).toHaveLength(1)
     expect('system' in adapter.requests[0]!).toBe(false)
     expect(adapter.requests[0]!.messages.map(message => message.role)).toEqual(['user'])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'system/message')).toMatchObject([
       { data: { message: { role: 'system', content: [] } }, surfaceOp: 'append' },
     ])
@@ -659,7 +644,6 @@ describe('agent loop', () => {
       const firstIdle = waitForIdle(ctx, agent)
       send(agent, 'first')
       await firstIdle
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const head = agent.session.snapshotEvents().find(event => event.type === 'system/message')
       expect(adapter.requests[0]?.messages.map(message => message.role)).toEqual(['user'])
       expect(head).toMatchObject({ data: { message: { content: [] } }, surfaceOp: 'append' })
@@ -672,14 +656,12 @@ describe('agent loop', () => {
       expect(adapter.requests).toHaveLength(2)
       expect(systemOf(adapter.requests[1])).toBe('You are an AI agent powered by DeepSeek Harness.')
       expect(adapter.requests[1]?.messages.map(message => message.role)).toEqual(['system', 'user', 'assistant', 'user'])
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const replacement = agent.session.snapshotEvents().findLast(event => event.type === 'system/message')
       expect(replacement).toMatchObject({
         surfaceOp: { op: 'replace', startSeq: head?.seq, endSeq: head?.seq },
         sourceEventSeqs: [head?.seq],
       })
       expect(agent.session.surface.nodes[0]).toBe(replacement?.seq)
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().flatMap(event =>
         event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial', 'series'])
     } finally {
@@ -699,7 +681,6 @@ describe('agent loop', () => {
     let mode = 'read-only'
     const dispose = ctx.systemPrompt.context({ name: 'policy', order: 0, text: () => `Mode: ${mode}.` })
     const agent = await ctx.agentLoop.create(SessionId('a-runtime-context'), { provider: 'mock', model: 'mock' })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const contextEvents = () => agent.session.snapshotEvents().flatMap(event =>
       event.type === 'user/message'
         && event.data.source.kind === 'plugin'
@@ -741,9 +722,7 @@ describe('agent loop', () => {
     await waitForIdle(ctx, agent)
     expect(contextEvents()).toHaveLength(3)
     expect(adapter.requests.map(systemOf)).toEqual(Array(5).fill(systemOf(adapter.requests[0])))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'system/message')).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event =>
       event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial'])
   })
@@ -756,7 +735,6 @@ describe('agent loop', () => {
 
     send(agent, 'first')
     await waitForIdle(ctx, agent)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const contextEvent = agent.session.snapshotEvents().find(event =>
       event.type === 'user/message'
       && event.data.source.kind === 'plugin'
@@ -772,7 +750,6 @@ describe('agent loop', () => {
 
     send(agent, 'after compaction')
     await waitForIdle(ctx, agent)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const runtimeContexts = agent.session.snapshotEvents().flatMap(event =>
       event.type === 'user/message'
         && event.data.source.kind === 'plugin'
@@ -793,7 +770,6 @@ describe('agent loop', () => {
 
     send(agent, 'first')
     await waitForIdle(ctx, agent)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const contextEvent = agent.session.snapshotEvents().find(event =>
       event.type === 'user/message'
       && event.data.source.kind === 'plugin'
@@ -856,7 +832,6 @@ describe('agent loop', () => {
 
     send(agent, 'repair context')
     await waitForIdle(ctx, agent)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const runtimeContexts = agent.session.snapshotEvents().flatMap(event =>
       event.type === 'user/message'
         && event.data.source.kind === 'plugin'
@@ -878,7 +853,6 @@ describe('agent loop', () => {
     send(agent, 'hi')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const message = agent.session.snapshotEvents().find(e => e.type === 'assistant/message')
     const chunks = message?.type === 'assistant/message' ? expandAssistantStream(message.data.stream) : []
     // textResponse('abc') = block-start + 3 deltas + block-end + usage + finish = 7
@@ -913,14 +887,12 @@ describe('agent loop', () => {
     send(agent, 'start')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const steering = agent.session.snapshotEvents().find(e =>
       e.type === 'user/message' && JSON.stringify(e.data.content).includes('change of plans'))
     expect(steering).toBeDefined()
     // The entered batch is appended after the second step opens and before its
     // request derives history.
     const steeringSeq = steering!.seq
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const secondStepStart = agent.session.snapshotEvents().filter(e => e.type === 'step/start')[1]
     expect(secondStepStart).toBeDefined()
     expect(steeringSeq).toBeGreaterThan(secondStepStart!.seq)
@@ -939,14 +911,11 @@ describe('agent loop', () => {
     const idle = waitForIdle(ctx, agent)
     agent.steer(createUserMessage({ content: [{ type: 'text', text: 'first idle steer' }], source: { kind: 'user' } }))
     expect(agent.status).toBe('running')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(1)
     agent.steer(createUserMessage({ content: [{ type: 'text', text: 'second idle steer' }], source: { kind: 'user' } }))
     await idle
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents()
       .filter(event => event.type === 'user/message')
       .map(event => event.data.content)).toEqual([
@@ -975,9 +944,7 @@ describe('agent loop', () => {
     await waitForIdle(ctx, agent)
 
     expect(adapter.requests).toHaveLength(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/end')).toHaveLength(1)
     expect(agent.inbox.nextStep).toHaveLength(1)
 
@@ -985,7 +952,6 @@ describe('agent loop', () => {
     await waitForIdle(ctx, agent)
 
     expect(adapter.requests).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(2)
     expect(JSON.stringify(adapter.requests[0]?.messages)).toContain('pending steering')
   })
@@ -998,9 +964,7 @@ describe('agent loop', () => {
     agent.inject(createUserMessage({ content: [{ type: 'text', text: 'file changed: a.ts' }], source: { kind: 'plugin', plugin: 'watcher' } }))
     expect(agent.status).toBe('idle')
     expect(adapter.requests).toHaveLength(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
       type: 'agent/inbox/spliced',
       data: {
@@ -1015,7 +979,6 @@ describe('agent loop', () => {
 
     send(agent, 'go')
     await waitForIdle(ctx, agent)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(1)
     const flat = JSON.stringify(adapter.requests[0]!.messages)
     expect(flat).toContain('file changed: a.ts')
@@ -1031,7 +994,6 @@ describe('agent loop', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const contextEvent = agent.session.snapshotEvents().find(event => event.type === 'user/message' && event.data.source.kind === 'plugin')
     expect(contextEvent?.type === 'user/message' && contextEvent.data.source)
       .toEqual({ kind: 'plugin', plugin: 'agent-instructions' })
@@ -1058,7 +1020,6 @@ describe('agent loop', () => {
         agent.inject(createUserMessage({ content: [first], source: { kind: 'plugin', plugin: 'x' } }))
         first.text = 'mutated after inject'
         agent.inject(createUserMessage({ content: [{ type: 'text', text: 'second notice' }], source: { kind: 'plugin', plugin: 'x' } }))
-        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         visibleDuringTool = agent.session.snapshotEvents().some(e => e.type === 'user/message' && e.data.source.kind === 'plugin')
         return [{ type: 'text', text: 'ok' }]
       },
@@ -1071,12 +1032,9 @@ describe('agent loop', () => {
 
     // The injection stays in the open turn, but its user-role context cannot
     // split the assistant tool call from the provider's tool-result message.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnStarts = agent.session.snapshotEvents().filter(e => e.type === 'turn/start')
     expect(turnStarts).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const result = agent.session.snapshotEvents().find(e => e.type === 'tool/result')!
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const contexts = agent.session.snapshotEvents().filter(e => e.type === 'user/message' && e.data.source.kind === 'plugin')
     expect(contexts).toHaveLength(2)
     expect(result.seq).toBeLessThan(contexts[0]!.seq)
@@ -1121,7 +1079,6 @@ describe('agent loop', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'user/message' && event.data.source.kind === 'plugin')).toBe(false)
   })
 
@@ -1167,7 +1124,6 @@ describe('agent loop', () => {
     // only one model call despite the tool call requesting a follow-up
     expect(adapter.requests).toHaveLength(1)
     // The tool still executes and durably records its result.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'tool/result')).toBe(true)
   })
 
@@ -1194,7 +1150,6 @@ describe('agent loop', () => {
     await waitForIdle(ctx, agent)
 
     expect(adapter.requests).toHaveLength(2)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = agent.session.snapshotEvents().map(event => event.type)
     expect(events.filter(type => type === 'turn/end')).toHaveLength(1)
     expect(JSON.stringify(adapter.requests[1]?.messages)).toContain('late steering')
@@ -1224,7 +1179,6 @@ describe('agent loop', () => {
     expect(adapter.requests[0]!.model).toBe('other-model')
     // The header event records what the request ACTUALLY used — the switch is
     // a reconstructable fact, not silent drift.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const headerEvent = agent.session.snapshotEvents().find(e => e.type === 'request/header')
     expect(headerEvent?.type === 'request/header' && headerEvent.data.header.config.model).toBe('other-model')
   })
@@ -1264,7 +1218,6 @@ describe('agent loop', () => {
 
     let boundaryOpen = true
     ctx.on('agent/pre-step', ({ agent: subject }, next) => {
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       if (subject === agent) boundaryOpen = subject.session.snapshotEvents().at(-1)?.type === 'step/start'
       return next()
     })
@@ -1297,16 +1250,13 @@ describe('agent loop', () => {
     // The first proposal failed inside a balanced turn without calling the model.
     expect(errors.map(error => error.message)).toEqual(['boom in pre-step'])
     expect(adapter.requests.length).toBe(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'turn/start')).toBe(true)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'turn/end')).toBe(true)
 
     // The loop survived: a second prompt runs a normal completed turn.
     send(agent, 'second')
     await waitForIdle(ctx, agent)
     expect(adapter.requests.length).toBe(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const lastTurnEnd = agent.session.snapshotEvents().findLast(e => e.type === 'turn/end')
     expect(lastTurnEnd?.type === 'turn/end' && lastTurnEnd.data.reason).toEqual({ kind: 'completed' })
   })
@@ -1353,7 +1303,6 @@ describe('agent loop', () => {
     expect(adapter.requests).toHaveLength(1)
     expect(reasons).toEqual([{ kind: 'max-tokens' }])
     // Assert the durable row, not only the live listener.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = agent.session.snapshotEvents().findLast(e => e.type === 'turn/end')
     expect(turnEnd!.data.reason).toEqual({ kind: 'max-tokens' })
   })
@@ -1458,7 +1407,6 @@ describe('agent loop', () => {
     await waitForIdle(ctx, agent)
 
     expect(executions).toBe(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'tool/call')).toBe(false)
     expect(agent.session.deriveMessages().slice(1)).toEqual([{
       id: expect.any(String) as unknown,
@@ -1469,7 +1417,6 @@ describe('agent loop', () => {
     expect(reasons).toEqual([{ kind: 'max-tokens' }])
     // Empty content still needs an assistant/message to carry usage; derivation
     // skips that host so it does not create a spurious assistant turn.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const assistantMessage = agent.session.snapshotEvents().find(e => e.type === 'assistant/message')
     expect(assistantMessage?.type === 'assistant/message' && assistantMessage.data).toMatchObject({
       turn: 1,
@@ -1510,7 +1457,6 @@ describe('agent loop', () => {
     await waitForIdle(ctx, agent)
 
     expect(reasons).toEqual([{ kind: 'max-tokens' }])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const assistant = agent.session.snapshotEvents().find(e => e.type === 'assistant/message')!
     expect(assistant.type === 'assistant/message' && assistant.data).toMatchObject({
       turn: 1,
@@ -1546,7 +1492,6 @@ describe('agent loop', () => {
     await waitForIdle(ctx, agent)
 
     expect(reasons).toEqual([{ kind: 'completed' }])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const assistant = agent.session.snapshotEvents().find(e => e.type === 'assistant/message')!
     expect(assistant.type === 'assistant/message' && assistant.data).toMatchObject({
       turn: 1,
@@ -1590,7 +1535,6 @@ describe('agent loop', () => {
     send(agent, 'continue')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'tool/call')).toBe(false)
     // The follow-up request replays the truncated message with its replay
     // metadata pruned in step with the dropped tool call.
@@ -1659,7 +1603,6 @@ describe('agent loop', () => {
     await waitForIdle(ctx, agent)
 
     expect(adapter.requests).toHaveLength(2)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = agent.session.snapshotEvents().findLast(e => e.type === 'turn/end')
     expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason.kind).toBe('completed')
   })
@@ -1681,9 +1624,7 @@ describe('agent loop', () => {
     send(agent, 'outer message')
     await idle
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turns = agent.session.snapshotEvents().filter(event => event.type === 'turn/start')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const messages = agent.session.snapshotEvents()
       .filter(event => event.type === 'user/message')
       .map(event => event.data.content)
@@ -1702,9 +1643,7 @@ describe('agent loop', () => {
     agent.followup(createUserMessage({ content: [{ type: 'text', text: 'plugin message' }], source: { kind: 'plugin', plugin: 'test' } }))
     await idle
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turns = agent.session.snapshotEvents().filter(event => event.type === 'turn/start')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const sources = agent.session.snapshotEvents()
       .filter(event => event.type === 'user/message')
       .map(event => event.data.source)
@@ -1760,11 +1699,9 @@ describe('agent loop', () => {
     send(agent, 'outer message')
     await idle
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const messages = agent.session.snapshotEvents()
       .filter(event => event.type === 'user/message')
       .map(event => event.data.content)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(2)
     expect(messages).toEqual([
       [{ type: 'text', text: 'outer message' }],
@@ -1795,7 +1732,6 @@ describe('agent loop', () => {
     })
     expect(reasons[0]).toMatchObject({ kind: 'error' })
     // The durable failure and live relay describe the same failed turn.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = agent.session.snapshotEvents().find(e => e.type === 'turn/end')
     expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason).toMatchObject({ kind: 'error' })
   })
@@ -1849,7 +1785,6 @@ describe('agent loop', () => {
     await waitForIdle(ctx, agent)
     expect(adapter.requests).toHaveLength(1)
     expect(adapter.requests[0]?.reasoningEffort).toBe(effort)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const header = agent.session.snapshotEvents().find(event => event.type === 'request/header')
     expect(header?.type === 'request/header' && header.data.header.config.reasoningEffort).toBe(effort)
   })
@@ -1888,15 +1823,11 @@ describe('agent loop', () => {
     send(agent, 'run')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const replayed = ctx.sessions.create(SessionId('replayed'), { seed: [...agent.session.snapshotEvents()] })
     expect(replayed.deriveMessages()).toEqual(agent.session.deriveMessages())
     // event-by-event identity of types over the inherited prefix
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(replayed.snapshotEvents().slice(0, agent.session.seq).map(e => e.type)).toEqual(
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       agent.session.snapshotEvents().map(e => e.type))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(replayed.snapshotEvents().at(-1)?.type).toBe('session/end-seed')
   })
 })
diff --git a/packages/core/agent-loop/tests/properties.spec.ts b/packages/core/agent-loop/tests/properties.spec.ts
index bf3c723153..68e170f27e 100644
--- a/packages/core/agent-loop/tests/properties.spec.ts
+++ b/packages/core/agent-loop/tests/properties.spec.ts
@@ -72,21 +72,18 @@ function recordStatus(ctx: Context, agent: Agent): { seen: string[]; dispose: ()
 }
 
 function userMessageTexts(agent: Agent): string[] {
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return agent.session.snapshotEvents()
     .filter(e => e.type === 'user/message')
     .map(e => (e.data as { content: { type: string; text?: string }[] }).content.map(b => b.text ?? '').join(''))
 }
 
 function turnNumbers(agent: Agent): number[] {
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return agent.session.snapshotEvents()
     .filter(e => e.type === 'turn/start')
     .map(e => e.data.turn)
 }
 
 function turnEndNumbers(agent: Agent): number[] {
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return agent.session.snapshotEvents()
     .filter(e => e.type === 'turn/end')
     .map(e => (e.data as { turn: number }).turn)
@@ -94,7 +91,6 @@ function turnEndNumbers(agent: Agent): number[] {
 
 function userMessageCountsByTurn(agent: Agent): number[] {
   const counts: number[] = []
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   for (const event of agent.session.snapshotEvents()) {
     if (event.type === 'turn/start') counts.push(0)
     if (event.type === 'user/message') counts[counts.length - 1]! += 1
diff --git a/packages/core/agent-loop/tests/request-cache.e2e.ts b/packages/core/agent-loop/tests/request-cache.e2e.ts
index 5a1c912bc0..ceaa2b0b6d 100644
--- a/packages/core/agent-loop/tests/request-cache.e2e.ts
+++ b/packages/core/agent-loop/tests/request-cache.e2e.ts
@@ -82,7 +82,6 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('log-derived request cache hits (
     agent.followup(createUserMessage({ content: [{ type: 'text', text: 'Thanks. Repeat that value one more time.' }], source: { kind: 'user' } }))
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const usages = agent.session.snapshotEvents()
       .filter(e => e.type === 'assistant/message')
       .map(e => e.data.usage)
diff --git a/packages/core/agent-loop/tests/request-error.spec.ts b/packages/core/agent-loop/tests/request-error.spec.ts
index f0ae238d80..616a817082 100644
--- a/packages/core/agent-loop/tests/request-error.spec.ts
+++ b/packages/core/agent-loop/tests/request-error.spec.ts
@@ -92,14 +92,12 @@ describe('agent/request-error', () => {
         code: 'SERVICE_UNAVAILABLE',
       },
     ])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(1)
     expect(seen.map(item => item.retryPolicy)).toEqual([
       expect.objectContaining({ mode: 'normal' }),
       expect.objectContaining({ mode: 'normal' }),
     ])
     expect(statuses).toEqual(['running', 'idle'])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event =>
       event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial'])
   })
@@ -117,9 +115,7 @@ describe('agent/request-error', () => {
     await agent.whenIdle()
 
     expect(adapter.requests).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().find(event => event.type === 'turn/end')).toMatchObject({
       type: 'turn/end',
       data: { reason: { kind: 'aborted', reason: { kind: 'user' } } },
@@ -141,9 +137,7 @@ describe('agent/request-error', () => {
     await agent.whenIdle()
 
     expect(adapter.requests).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'turn/start')).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().find(event => event.type === 'turn/end')).toMatchObject({
       type: 'turn/end',
       data: { reason: { kind: 'error' } },
diff --git a/packages/core/agent-loop/tests/request-freeze.spec.ts b/packages/core/agent-loop/tests/request-freeze.spec.ts
index 82261178fe..560be88627 100644
--- a/packages/core/agent-loop/tests/request-freeze.spec.ts
+++ b/packages/core/agent-loop/tests/request-freeze.spec.ts
@@ -58,7 +58,6 @@ describe('loop-owned request freezing', () => {
       }),
       stream: [],
     }, { surfaceOp: 'append' })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = structuredClone(seed.snapshotEvents())
     const userEvent = events.find(event => event.type === 'user/message')!
     const assistantEvent = events.find(event => event.type === 'assistant/message')!
@@ -199,7 +198,6 @@ describe('loop-owned request freezing', () => {
       expect(() => request.stop!.push('mutate')).toThrow(TypeError)
       if (!registered) expect(request.stop).toBe(stops[index])
     }
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'request/header')).toHaveLength(1)
     expect(agent.session.requestHeader()!.tools).not.toBe(requests[0]!.tools)
     expect(agent.session.requestHeader()!.config.stop).not.toBe(requests[0]!.stop)
@@ -223,7 +221,6 @@ describe('loop-owned request freezing', () => {
       await agent.whenIdle()
       expect(request.signal!.aborted).toBe(true)
       expect(request.signal!.reason).toEqual({ kind: 'user' })
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
         type: 'turn/end', data: { reason: { kind: 'aborted', reason: { kind: 'user' } } },
       })
diff --git a/packages/core/agent-loop/tests/request-reconstruction.spec.ts b/packages/core/agent-loop/tests/request-reconstruction.spec.ts
index e5ec05cb60..2450a21999 100644
--- a/packages/core/agent-loop/tests/request-reconstruction.spec.ts
+++ b/packages/core/agent-loop/tests/request-reconstruction.spec.ts
@@ -94,7 +94,6 @@ describe('request stability across the loop', () => {
       expect(Object.isFrozen(request.messages)).toBe(true)
     }
     // One anchoring header snapshot; no further header events (nothing changed).
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const headerEvents = agent.session.snapshotEvents().filter(e => e.type === 'request/header')
     expect(headerEvents).toHaveLength(1)
     expect(headerEvents[0]?.type === 'request/header' && headerEvents[0].data.reason).toBe('initial')
@@ -112,7 +111,6 @@ describe('request stability across the loop', () => {
 
     expect(adapter.requests).toHaveLength(2)
     expectPrefixExtension(adapter.requests[0]!, adapter.requests[1]!)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event =>
       event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial'])
   })
@@ -134,7 +132,6 @@ describe('request stability across the loop', () => {
     await waitForIdle(ctx, agent)
 
     expectPrefixExtension(adapter.requests[0]!, adapter.requests[1]!)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event =>
       event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial', 'series'])
   })
@@ -160,7 +157,6 @@ describe('request stability across the loop', () => {
     await waitForIdle(ctx, agent)
 
     expectPrefixExtension(adapter.requests[0]!, adapter.requests[1]!)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event => event.type === 'request/header'
       ? [{ reason: event.data.reason, startsSeries: event.data.startsSeries }]
       : [])).toEqual([
@@ -198,7 +194,6 @@ describe('request stability across the loop', () => {
     await waitForIdle(ctx, agent)
 
     expectPrefixExtension(adapter.requests[0]!, adapter.requests[1]!)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event =>
       event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial', 'series'])
   })
@@ -228,7 +223,6 @@ describe('request stability across the loop', () => {
       ReasoningEffortId('high'),
       ReasoningEffortId('max'),
     ])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const headers = agent.session.snapshotEvents().filter(event => event.type === 'request/header')
     expect(headers.map(event => event.data.header.config.reasoningEffort)).toEqual([
       ReasoningEffortId('high'),
@@ -248,7 +242,6 @@ describe('request stability across the loop', () => {
       const resumedCtx = await harness(resumedAdapter)
       const resumedHandle = await resumedCtx.agents.create({
         sessionId: SessionId(`effort-${model}`),
-        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         seed: structuredClone(agent.session.snapshotEvents()),
         agentOptions: { provider: 'mock', model },
       })
@@ -257,7 +250,6 @@ describe('request stability across the loop', () => {
 
       expect(resumedAdapter.requests[0]?.model).toBe(model)
       expect(resumedAdapter.requests[0]?.reasoningEffort).toBe(effort)
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const resumedHeaders = resumedHandle.agent.session.snapshotEvents().filter(event => event.type === 'request/header')
       expect(resumedHeaders.at(-1)?.data.header.config.reasoningEffort).toBe(effort)
       expect(resumedHeaders.at(-1)?.data.reason).toBe('resume')
@@ -276,7 +268,6 @@ describe('request stability across the loop', () => {
     await waitForIdle(ctx, agent)
 
     expect(adapter.requests[0]?.maxTokens).toBe(256_000)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const header = agent.session.snapshotEvents().find(event => event.type === 'request/header')
     expect(header?.type === 'request/header' && header.data.header.config.maxTokens).toBe(256_000)
     expect(header?.type === 'request/header' && header.data.header.adapterDefaults)
@@ -308,7 +299,6 @@ describe('request stability across the loop', () => {
 
     expect(deepseek.requests[0]?.maxTokens).toBe(256_000)
     expect(other.requests[0]?.maxTokens).toBe(8_192)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const headers = agent.session.snapshotEvents().filter(event => event.type === 'request/header')
     expect(headers.map(event => event.data.header.config.maxTokens)).toEqual([256_000, 8_192])
     expect(headers.map(event => event.data.header.adapterDefaults)).toEqual([
@@ -343,7 +333,6 @@ describe('request stability across the loop', () => {
 
     expect(deepseek.requests[0]?.maxTokens).toBe(4_096)
     expect(other.requests[0]?.maxTokens).toBe(4_096)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const headers = agent.session.snapshotEvents().filter(event => event.type === 'request/header')
     expect(headers.map(event => event.data.header.config.maxTokens)).toEqual([4_096, 4_096])
     expect(headers.map(event => event.data.header.adapterDefaults)).toEqual([undefined, undefined])
@@ -396,7 +385,6 @@ describe('request stability across the loop', () => {
       ReasoningEffortId('high'),
     ])
     expect(second.requests).toHaveLength(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const headers = agent.session.snapshotEvents().filter(event => event.type === 'request/header')
     expect(headers.at(-1)?.data.header.config.reasoningEffort).toBe(ReasoningEffortId('high'))
   })
@@ -435,7 +423,6 @@ describe('request stability across the loop', () => {
     expect(signal.aborted).toBe(true)
     expect(handle.agent.status).toBe('idle')
     expect(adapter.requests).toHaveLength(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(handle.agent.session.snapshotEvents().some(event => event.type === 'request/header')).toBe(false)
   })
 
@@ -459,7 +446,6 @@ describe('request stability across the loop', () => {
       send(agent, 'go')
       await waitForIdle(ctx, agent)
 
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')).toMatchObject({
         data: {
           reason: failure instanceof LlmError
@@ -535,7 +521,6 @@ describe('request stability across the loop', () => {
     // The rewritten history: summary replaces turn 1's user+assistant pair behind the system prompt.
     expect(second.messages[0]!.role).toBe('system')
     expect(second.messages[1]!.content.some(b => b.type === 'text' && b.text.includes('[summary of turn 1]'))).toBe(true)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event => event.type === 'request/header'
       ? [{ reason: event.data.reason, startsSeries: event.data.startsSeries }]
       : [])).toEqual([
@@ -574,7 +559,6 @@ describe('request stability across the loop', () => {
     expect(adapter.requests[1]?.messages[1]?.content).toContainEqual({
       type: 'text', text: '[summary for retry]',
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event =>
       event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial', 'series'])
   })
@@ -588,7 +572,6 @@ describe('request stability across the loop', () => {
     await waitForIdle(ctx, agent)
     send(agent, 'second')
     await waitForIdle(ctx, agent)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event =>
       event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial'])
 
@@ -596,10 +579,8 @@ describe('request stability across the loop', () => {
     send(agent, 'third')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const snapshots = agent.session.snapshotEvents().filter(e => e.type === 'request/header')
     expect(snapshots.map(event => event.data.reason)).toEqual(['initial', 'series'])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const systemNodes = agent.session.snapshotEvents().filter(e => e.type === 'system/message')
     expect(systemNodes).toHaveLength(2)
     expect(systemNodes[1]?.surfaceOp).toEqual({ op: 'replace', startSeq: systemNodes[0]?.seq, endSeq: systemNodes[0]?.seq })
@@ -629,10 +610,8 @@ describe('request stability across the loop', () => {
     await waitForIdle(ctx, agent)
 
     // No new series: the header stays, node 0 stays, and the prompt update follows the cached prefix.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event =>
       event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial'])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const systemNodes = agent.session.snapshotEvents().filter(e => e.type === 'system/message')
     expect(systemNodes).toHaveLength(2)
     expect(systemNodes[1]?.surfaceOp).toBe('append')
@@ -646,7 +625,6 @@ describe('request stability across the loop', () => {
     // An unchanged prompt adds nothing on the next step.
     send(agent, 'fourth')
     await waitForIdle(ctx, agent)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(e => e.type === 'system/message')).toHaveLength(2)
     expectPrefixExtension(adapter.requests[2]!, adapter.requests[3]!)
   })
@@ -670,11 +648,9 @@ describe('request stability across the loop', () => {
     startSeries = true
     send(agent, 'second')
     await waitForIdle(ctx, agent)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     let systemNodes = agent.session.snapshotEvents().filter(e => e.type === 'system/message')
     expect(systemNodes).toHaveLength(2)
     expect(systemNodes[1]?.surfaceOp).toEqual({ op: 'replace', startSeq: systemNodes[0]?.seq, endSeq: systemNodes[0]?.seq })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event =>
       event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial', 'series'])
 
@@ -684,7 +660,6 @@ describe('request stability across the loop', () => {
     disposeSection = ctx.systemPrompt.section({ name: 'extra', order: 2, text: 'newer guidance' })
     send(agent, 'third')
     await waitForIdle(ctx, agent)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     systemNodes = agent.session.snapshotEvents().filter(e => e.type === 'system/message')
     expect(systemNodes).toHaveLength(3)
     expect(systemNodes[2]?.surfaceOp).toBe('append')
@@ -695,7 +670,6 @@ describe('request stability across the loop', () => {
     ctx.systemPrompt.section({ name: 'extra', order: 2, text: 'newest guidance' })
     send(agent, 'fourth')
     await waitForIdle(ctx, agent)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     systemNodes = agent.session.snapshotEvents().filter(e => e.type === 'system/message')
     expect(systemNodes).toHaveLength(5)
     expect(systemNodes[3]?.data.message.content).toEqual([])
@@ -729,12 +703,10 @@ describe('request stability across the loop', () => {
     send(agent, 'second')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const systemNodes = agent.session.snapshotEvents().filter(e => e.type === 'system/message')
     expect(systemNodes).toHaveLength(2)
     expect(systemNodes[1]?.surfaceOp).toEqual({ op: 'replace', startSeq: systemNodes[0]?.seq, endSeq: systemNodes[0]?.seq })
     expect(adapter.requests[1]!.messages.map(message => message.role)).toEqual(['system', 'user', 'user'])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event =>
       event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial', 'series'])
   })
@@ -753,10 +725,8 @@ describe('request stability across the loop', () => {
     send(agent, 'second')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const headers = agent.session.snapshotEvents().filter(e => e.type === 'request/header')
     expect(headers.map(event => [event.data.reason, event.data.startsSeries])).toEqual([['initial', undefined], ['change', true]])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const systemNodes = agent.session.snapshotEvents().filter(e => e.type === 'system/message')
     expect(systemNodes).toHaveLength(2)
     expect(systemNodes[1]?.surfaceOp).toEqual({ op: 'replace', startSeq: systemNodes[0]?.seq, endSeq: systemNodes[0]?.seq })
@@ -782,7 +752,6 @@ describe('request stability across the loop', () => {
     const first = adapter.requests[0]!
     // The inject landed in the log after the boundary: not in THIS request…
     expect(first.messages.some(m => m.content.some(b => b.type === 'text' && b.text.includes('[late context]')))).toBe(false)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'user/message' && e.data.source.kind === 'plugin')).toBe(true)
 
     send(agent, 'second')
@@ -810,7 +779,6 @@ describe('request stability across the loop', () => {
     send(agent, 'go')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')
     expect(turnEnd).toMatchObject({ data: { reason: { kind: 'error' } } })
     if (turnEnd?.type !== 'turn/end' || turnEnd.data.reason.kind !== 'error') throw new Error()
@@ -830,7 +798,6 @@ describe('request stability across the loop', () => {
     const ctx2 = await harness(adapter2)
     const handle = await ctx2.agents.create({
       sessionId: SessionId('gen2-session'),
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       seed: agent.session.snapshotEvents(),
       agentOptions: { provider: 'mock', model: 'mock' },
     })
@@ -838,13 +805,11 @@ describe('request stability across the loop', () => {
     send(agent2, 'second')
     await waitForIdle(ctx2, agent2)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const snapshots = agent2.session.snapshotEvents().filter(e => e.type === 'request/header')
     expect(snapshots).toHaveLength(2)
     expect(snapshots[1]?.data.reason).toBe('resume')
     // Identical header and an unchanged system node across the restart: byte-identical continuation.
     expect(adapter2.requests[0]!.messages[0]).toEqual(adapter.requests[0]!.messages[0])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent2.session.snapshotEvents().filter(event => event.type === 'system/message')).toHaveLength(1)
     expectPrefixExtension(adapter.requests[0]!, adapter2.requests[0]!)
   })
@@ -873,7 +838,6 @@ describe('request stability across the loop', () => {
 
     // The second turn reuses the same series and header; the session's own
     // fold remains immutable state.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().flatMap(event =>
       event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial'])
     expect(Object.isFrozen(agent.session.requestHeader())).toBe(true)
@@ -900,7 +864,6 @@ describe('request stability across the loop', () => {
     await waitForIdle(ctx, agent)
 
     expect(adapter.requests).toHaveLength(3)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = agent.session.snapshotEvents()
     const stepStarts = events.filter(e => e.type === 'step/start')
     expect(stepStarts).toHaveLength(3)
@@ -957,7 +920,6 @@ describe('request/context capacity records', () => {
     send(agent, 'second')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const records = agent.session.snapshotEvents().filter(event => event.type === 'request/context')
     expect(records).toHaveLength(1)
     expect(records[0]?.data).toEqual({ provider: 'mock', model: 'mock', contextWindow: 128_000 })
@@ -983,7 +945,6 @@ describe('request/context capacity records', () => {
     send(agent, 'second')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents()
       .filter(event => event.type === 'request/context')
       .map(event => event.data.contextWindow)).toEqual([64_000, 256_000])
@@ -996,7 +957,6 @@ describe('request/context capacity records', () => {
     await waitForIdle(ctx, agent)
     send(agent, 'second')
     await waitForIdle(ctx, agent)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents()
       .filter(event => event.type === 'request/context')
       .map(event => event.data)).toEqual([{ provider: 'mock', model: 'mock' }])
@@ -1017,7 +977,6 @@ describe('request/context capacity records', () => {
     send(agent, 'second')
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents()
       .filter(event => event.type === 'request/context')
       .map(event => event.data)).toEqual([
diff --git a/packages/core/agent-loop/tests/resume.spec.ts b/packages/core/agent-loop/tests/resume.spec.ts
index 838c3e7004..271849eba3 100644
--- a/packages/core/agent-loop/tests/resume.spec.ts
+++ b/packages/core/agent-loop/tests/resume.spec.ts
@@ -484,7 +484,6 @@ describe('the session-persistence Agent Note: AgentLoop factory create/resume',
     // Lifecycle 2: resume repairs the tail and stores the repair durably.
     const ctx2 = await mountPersistentHarness(root, new MockAdapter([]))
     const handle = await ctx2.agents.resume({ resumeSessionId: sessionId })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(handle.agent.session.snapshotEvents().map(event => event.type))
       .toEqual(['turn/start', 'turn/end', 'session/end-seed'])
     await handle.dispose()
@@ -553,7 +552,6 @@ describe('the session-persistence Agent Note: AgentLoop factory create/resume',
     // closers immediately after the committed prefix — no gap, no fragment.
     const ctx2 = await mountPersistentHarness(root, new MockAdapter([]), 'none')
     const handle = await ctx2.agents.resume({ resumeSessionId: sessionId })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(handle.agent.session.snapshotEvents().map(event => event.type))
       .toEqual(['turn/start', 'turn/end', 'session/end-seed'])
     await handle.dispose()
@@ -641,7 +639,6 @@ describe('the session-persistence Agent Note: AgentLoop factory create/resume',
       setup: async (agentCtx, agent) => {
         expect(agent.id).toBe(sessionId)
         // The two persisted events plus the end-seed marker.
-        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         expect(agent.session.snapshotEvents()).toHaveLength(3)
         agentCtx.on('session/created', () => void order.push('setup-listener:session/created'))
         agentCtx.on('agent/created', () => void order.push('setup-listener:agent/created'))
@@ -694,7 +691,6 @@ describe('the session-persistence Agent Note: AgentLoop factory create/resume',
     expect(stored.map(event => event.type)).toEqual(['turn/start', 'turn/end', 'session/end-seed'])
 
     const second = await ctx.agents.resume({ resumeSessionId: sessionId })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(second.agent.session.snapshotEvents().map(event => event.type))
       .toEqual(['turn/start', 'turn/end', 'session/end-seed'])
     await second.dispose()
@@ -987,7 +983,6 @@ describe('the session-persistence Agent Note: AgentLoop factory create/resume',
     const a1 = h1.agent
     a1.followup(createUserMessage({ content: [{ type: 'text', text: 'first question' }], source: { kind: 'user' } }))
     await waitForIdle(ctx1, a1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events1 = a1.session.snapshotEvents()
     const seqs1 = events1.map(e => e.seq)
     expect(seqs1).toEqual([...seqs1].sort((x, y) => x - y)) // contiguous
@@ -1001,10 +996,8 @@ describe('the session-persistence Agent Note: AgentLoop factory create/resume',
     // The resumed session carries the prior history…
     expect(a2.session.id).toBe('sess-resume')
     // …followed by one end-seed event marking the constructor seed.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(a2.session.snapshotEvents().length).toBe(events1.length + 1)
     expect(a2.session.firstLiveSeq).toBe(events1.length)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(a2.session.snapshotEvents().at(-1)?.type).toBe('session/end-seed')
     const replay = Session.create(SessionId('replay'), events1)
     expect(a2.session.deriveMessages()).toEqual(replay.deriveMessages())
@@ -1012,10 +1005,8 @@ describe('the session-persistence Agent Note: AgentLoop factory create/resume',
     // …and a new turn continues numbering (turn 2) with contiguous seqs.
     a2.followup(createUserMessage({ content: [{ type: 'text', text: 'second question' }], source: { kind: 'user' } }))
     await waitForIdle(ctx2, a2)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const allSeqs = a2.session.snapshotEvents().map(e => e.seq)
     expect(allSeqs).toEqual(allSeqs.map((_, i) => i)) // 0..N contiguous, no duplicates
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnStarts = a2.session.snapshotEvents().filter(e => e.type === 'turn/start')
     expect(turnStarts.map(e => e.type === 'turn/start' && e.data.turn)).toEqual([1, 2])
     await ctx2.fiber.dispose()
diff --git a/packages/core/agent-loop/tests/scope-lifecycle.spec.ts b/packages/core/agent-loop/tests/scope-lifecycle.spec.ts
index 851701a646..81bfc64abd 100644
--- a/packages/core/agent-loop/tests/scope-lifecycle.spec.ts
+++ b/packages/core/agent-loop/tests/scope-lifecycle.spec.ts
@@ -809,7 +809,6 @@ describe('agent scope lifecycle', () => {
     expect(statuses).toEqual([])
     expect(observerSawLive).toBe(true)
     expect(scopeDisposed).toBe(true)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(announced.session.snapshotEvents()).toEqual([])
     expect(ctx.agents.get(SessionId('session-start-dispose-s'))).toBeUndefined()
     expect(ctx.sessions.get(SessionId('session-start-dispose-s'))).toBeUndefined()
@@ -1115,10 +1114,8 @@ describe('agent scope lifecycle', () => {
     // are empty and nothing still drives the detached session.
     expect(ctx.agents.get(agent.id)).toBeUndefined()
     expect(ctx.sessions.get(agent.id)).toBeUndefined()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const eventsAfter = agent.session.snapshotEvents().length
     await new Promise(resolve => setTimeout(resolve, 30))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().length).toBe(eventsAfter)
     await ctx.fiber.dispose()
   })
diff --git a/packages/core/agent-loop/tests/system-prompt-admission.spec.ts b/packages/core/agent-loop/tests/system-prompt-admission.spec.ts
index e57df3e855..d3702147f6 100644
--- a/packages/core/agent-loop/tests/system-prompt-admission.spec.ts
+++ b/packages/core/agent-loop/tests/system-prompt-admission.spec.ts
@@ -39,7 +39,6 @@ async function harness(capable = new MockAdapter(Array.from({ length: 8 }, () =>
   ctx.on('llm/stream', (request, next) => {
     // Rebuild from copied source events, not the live projection's cached state.
     const subject = ctx.agents.get(request.sessionId!)!
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const replay = Session.create(subject.id, subject.session.snapshotEvents())
     expect(request.messages).toEqual(replay.deriveMessages())
     expect(request.system).toBeUndefined()
@@ -84,26 +83,21 @@ describe('prepared-route prompt admission', () => {
     expect(systemTexts(cleared)).toEqual([])
     expect(toPiContext(cleared).systemPrompt).toBeUndefined()
     expect(JSON.stringify(toPiContext(cleared))).not.toContain('prompt ')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const clearEvents = h.agent.session.snapshotEvents().filter(event => event.type === 'system/message').filter(event => event.data.turn === 4)
     expect(clearEvents).toHaveLength(3)
     for (const event of clearEvents) {
       expect(event.data.message.content).toEqual([])
       expect(event.surfaceOp).toEqual({ op: 'replace', startSeq: event.sourceEventSeqs?.[0], endSeq: event.sourceEventSeqs?.[0] })
     }
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const count = h.agent.session.snapshotEvents().filter(event => event.type === 'system/message').length
     await send(h.agent, 'still clear')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(h.agent.session.snapshotEvents().filter(event => event.type === 'system/message')).toHaveLength(count)
     expect(systemTexts(adapter.requests.at(-1)!)).toEqual([])
     const { agent: resumed } = await h.ctx.agents.create({
       sessionId: SessionId('cleared-resume'), agentOptions: { provider, model: 'model' },
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       seed: [...h.agent.session.snapshotEvents()],
     })
     await send(resumed, 'resume clear')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(resumed.session.snapshotEvents().filter(event => event.type === 'system/message')).toHaveLength(count)
     expect(systemTexts(adapter.requests.at(-1)!)).toEqual([])
     h.setPrompt('restored instruction')
@@ -130,7 +124,6 @@ describe('prepared-route prompt admission', () => {
     }
     await send(h.agent, 'third')
     expectPlain(h.capable.requests[2]!, 'prompt two')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const header = h.agent.session.snapshotEvents().filter(event => event.type === 'request/header').at(-1)
     expect(header?.data.reason).toBe(reason === 'explicit' ? 'series' : 'change')
     if (reason === 'tools') expect(header?.data.startsSeries).toBe(true)
@@ -154,7 +147,6 @@ describe('prepared-route prompt admission', () => {
       expect(failure.code).toBe('CONTEXT_LENGTH')
       if (attempts++ === 0) {
         const nodes = h.agent.session.surface.nodes
-        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         const latest = nodes.findLast(seq => h.agent.session.eventAt(seq)?.type === 'system/message')!
         const start = retainOlder ? latest : nodes[1]!
         const replaced = nodes.slice(nodes.indexOf(start), nodes.indexOf(latest) + 1)
@@ -174,7 +166,6 @@ describe('prepared-route prompt admission', () => {
     expectPlain(adapter.requests[3]!, 'prompt three')
     expect(adapter.requests[4]!.messages).toEqual(adapter.requests[3]!.messages)
     expect(adapter.requests[3]!.messages.at(-1)?.content).toEqual([{ type: 'text', text: 'third' }])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = h.agent.session.snapshotEvents()
     expect(events.filter(event => event.type === 'step/start')).toHaveLength(3)
     expect(events.filter(event => event.type === 'user/message' && event.data.source.kind === 'user')).toHaveLength(3)
@@ -192,7 +183,6 @@ describe('prepared-route prompt admission', () => {
     if (changed) h.setPrompt('prompt three')
     await send(h.agent, 'third')
     expectPlain(h.plain.requests[0]!, changed ? 'prompt three' : 'prompt two')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = h.agent.session.snapshotEvents()
     const replacements = events.filter(event => event.type === 'system/message').filter(event => event.surfaceOp !== 'append')
     expect(replacements).toHaveLength(2)
@@ -201,7 +191,6 @@ describe('prepared-route prompt admission', () => {
       expect(event.surfaceOp).toEqual({ op: 'replace', startSeq: event.sourceEventSeqs?.[0], endSeq: event.sourceEventSeqs?.[0] })
     }
     await send(h.agent, 'fourth')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(h.agent.session.snapshotEvents().filter(event => event.type === 'system/message')).toHaveLength(4)
     expectPlain(h.plain.requests[1]!, changed ? 'prompt three' : 'prompt two')
   })
@@ -225,7 +214,6 @@ describe('prepared-route prompt admission', () => {
     expect(messages.slice(-2).map(message => message.content)).toEqual([
       [{ type: 'text', text: 'second' }], notice,
     ])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const notices = h.agent.session.snapshotEvents().filter(event => event.type === 'user/message'
       && event.data.source.kind === 'plugin' && event.data.source.plugin === 'model-selection')
     expect(notices).toHaveLength(1)
@@ -242,12 +230,10 @@ describe('prepared-route prompt admission', () => {
     await send(h.agent, 'second')
     const { agent: resumed } = await h.ctx.agents.create({
       sessionId: SessionId('resumed-capable'), agentOptions: { provider: 'capable', model: 'model' },
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       seed: [...h.agent.session.snapshotEvents()],
     })
     h.ctx.on('agent/pre-step', ({ agent }, next) => {
       if (agent === resumed && replace) {
-        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         const seq = agent.session.surface.nodes.find(seq => agent.session.eventAt(seq)?.type === 'user/message')!
         agent.session.append('user/message', createUserMessage({
           content: [{ type: 'text', text: 'compacted history' }], source: { kind: 'plugin', plugin: 'test-compaction' },
@@ -259,7 +245,6 @@ describe('prepared-route prompt admission', () => {
     expect(systemTexts(h.capable.requests[2]!)).toEqual(replace
       ? [[{ type: 'text', text: 'prompt two' }]]
       : [[{ type: 'text', text: 'prompt one' }], [{ type: 'text', text: 'prompt two' }]])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(resumed.session.snapshotEvents().filter(event => event.type === 'request/header').map(event => event.data.reason))
       .toEqual(['initial', 'resume'])
   })
@@ -269,12 +254,10 @@ describe('prepared-route prompt admission', () => {
     await send(h.agent, 'first')
     h.setPrompt('prompt two')
     await send(h.agent, 'second')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const seed = h.agent.session.snapshotEvents()
     const { agent: resumed } = await h.ctx.agents.create({ sessionId: SessionId('resumed'), agentOptions: { provider: 'plain', model: 'model' }, seed: [...seed] })
     await send(resumed, 'resume')
     expectPlain(h.plain.requests[0]!, 'prompt two')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(resumed.session.snapshotEvents().filter(event => event.type === 'request/header').at(-1)?.data.reason).toBe('resume')
   })
 
@@ -283,7 +266,6 @@ describe('prepared-route prompt admission', () => {
     const entered = Promise.withResolvers<undefined>()
     const release = Promise.withResolvers<undefined>()
     const observe = async () => {
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const types = h.agent.session.snapshotEvents().map(event => event.type)
       expect(types).toContain('step/start')
       expect(types).not.toContain('system/message')
@@ -303,7 +285,6 @@ describe('prepared-route prompt admission', () => {
     release.resolve(undefined)
     await h.agent.whenIdle()
     expect(h.capable.requests).toHaveLength(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const types = h.agent.session.snapshotEvents().map(event => event.type)
     expect(types.filter(type => type === 'step/start' || type === 'step/end')).toEqual(['step/start', 'step/end'])
     expect(types.filter(type => ['system/message', 'user/message', 'request/header'].includes(type))).toEqual([])
@@ -322,7 +303,6 @@ describe('prepared-route prompt admission', () => {
     expect(h.plain.requests).toHaveLength(0)
     expect(h.capable.requests[1]).toMatchObject({ provider: 'capable', temperature: 0.5, maxTokens: 100 })
     expect(systemTexts(h.capable.requests[1]!)).toHaveLength(2)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(h.agent.session.snapshotEvents().filter(event => event.type === 'user/message')).toHaveLength(2)
   })
 })
diff --git a/packages/core/agent-loop/tests/tool-calls.spec.ts b/packages/core/agent-loop/tests/tool-calls.spec.ts
index dc6f783139..74871d4a0d 100644
--- a/packages/core/agent-loop/tests/tool-calls.spec.ts
+++ b/packages/core/agent-loop/tests/tool-calls.spec.ts
@@ -42,7 +42,6 @@ function waitForIdle(ctx: Context, agent: Agent): Promise<void> {
 }
 
 function events(agent: Agent): readonly SessionEvent[] {
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return agent.session.snapshotEvents()
 }
 
diff --git a/packages/core/agent-loop/tests/tool-order.spec.ts b/packages/core/agent-loop/tests/tool-order.spec.ts
index e4c05be289..287f5fe761 100644
--- a/packages/core/agent-loop/tests/tool-order.spec.ts
+++ b/packages/core/agent-loop/tests/tool-order.spec.ts
@@ -69,7 +69,6 @@ async function runTurn(registrationOrder: string[], toolOrder?: SystemPromptConf
 describe('loop-level canonical tool order', () => {
   it('logs the request/header with tools in canonical order, not registration order', async () => {
     const { agent, adapter } = await runTurn(['zulu', 'alpha', 'mike'])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const header = foldRequestHeader(agent.session.snapshotEvents())
     expect(header?.tools?.map(tool => tool.name)).toEqual(['alpha', 'mike', 'zulu'])
     // The dispatched request is built FROM the logged header (whose tools the
@@ -83,7 +82,6 @@ describe('loop-level canonical tool order', () => {
   it('produces the same header order for any registration order', async () => {
     const first = await runTurn(['alpha', 'mike', 'zulu'])
     const second = await runTurn(['zulu', 'mike', 'alpha'])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const names = (run: typeof first) => foldRequestHeader(run.agent.session.snapshotEvents())?.tools?.map(tool => tool.name)
     expect(names(first)).toEqual(['alpha', 'mike', 'zulu'])
     expect(names(second)).toEqual(names(first))
@@ -91,7 +89,6 @@ describe('loop-level canonical tool order', () => {
 
   it('honors a configured toolOrder in the logged header and the dispatched request', async () => {
     const { agent, adapter } = await runTurn(['alpha', 'zulu', 'mike'], ['zulu', TOOL_ORDER_REST])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const header = foldRequestHeader(agent.session.snapshotEvents())
     expect(header?.tools?.map(tool => tool.name)).toEqual(['zulu', 'alpha', 'mike'])
     expect(adapter.requests[0]?.tools?.map(tool => tool.name)).toEqual(['zulu', 'alpha', 'mike'])
@@ -106,15 +103,10 @@ describe('loop-level canonical tool order', () => {
     agent.followup(createUserMessage({ content: [{ type: 'text', text: 'go' }], source: { kind: 'user' } }))
     await waitForIdle(ctx, agent)
     expect(adapter.requests).toHaveLength(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldRequestHeader(agent.session.snapshotEvents())).toBeUndefined()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'turn/start')).toBe(true)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'turn/end')).toBe(true)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'step/start')).toBe(false)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(e => e.type === 'step/end')).toBe(false)
   })
 })
diff --git a/packages/core/agent/tests/consumed-work.spec.ts b/packages/core/agent/tests/consumed-work.spec.ts
index 221a5f7d0f..26808c5c81 100644
--- a/packages/core/agent/tests/consumed-work.spec.ts
+++ b/packages/core/agent/tests/consumed-work.spec.ts
@@ -40,7 +40,6 @@ describe('foldConsumedWork', () => {
     const session = Session.create(SessionId('empty'))
     accept(session, 'queued')
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldConsumedWork(session.snapshotEvents())).toEqual({ droppedUnrun: false })
   })
 
@@ -49,7 +48,6 @@ describe('foldConsumedWork', () => {
     steppedTurn(session, 1, { kind: 'completed' })
     steppedTurn(session, 2, { kind: 'max-tokens' })
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldConsumedWork(session.snapshotEvents()).end?.data)
       .toEqual({ turn: 2, reason: { kind: 'max-tokens' } })
   })
@@ -63,7 +61,6 @@ describe('foldConsumedWork', () => {
     claim(session)
     session.append('turn/end', { turn: 2, reason: { kind: 'error', error: { message: 'ENOSPC', code: 'UNKNOWN' } } })
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldConsumedWork(session.snapshotEvents()).end?.data.turn).toBe(2)
   })
 
@@ -74,7 +71,6 @@ describe('foldConsumedWork', () => {
     claim(session)
     session.append('turn/end', { turn: 2, reason: { kind: 'aborted', reason: { kind: 'user' } } })
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldConsumedWork(session.snapshotEvents()).end?.data.turn).toBe(2)
   })
 
@@ -89,7 +85,6 @@ describe('foldConsumedWork', () => {
     session.append('turn/end', { turn: 4, reason: { kind: 'blocked' } })
 
     // None of these turns describes work: they opened, found nothing of their own, and closed.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldConsumedWork(session.snapshotEvents()).end?.data.turn).toBe(1)
   })
 
@@ -102,7 +97,6 @@ describe('foldConsumedWork', () => {
 
     // Rejection does not retain the claimed messages, so the `blocked` end is
     // the only account of input that will never run.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldConsumedWork(session.snapshotEvents()).end?.data.turn).toBe(2)
   })
 
@@ -115,7 +109,6 @@ describe('foldConsumedWork', () => {
 
     // An emptied claim ran nothing and dropped nothing: a listener rewrote the
     // batch away, which is not this log's account of the work.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldConsumedWork(session.snapshotEvents()).end?.data.turn).toBe(1)
   })
 
@@ -127,7 +120,6 @@ describe('foldConsumedWork', () => {
     claim(session)
     session.append('turn/end', { turn: 2, reason: { kind: 'aborted', reason: { kind: 'user' } } })
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldConsumedWork(session.snapshotEvents()).end?.data.turn).toBe(1)
   })
 
@@ -138,9 +130,7 @@ describe('foldConsumedWork', () => {
     cancelPending(session)
 
     // No turn opened over it, so only the cancellation says the work was cut short.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldConsumedWork(session.snapshotEvents())).toEqual({
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       end: session.snapshotEvents().find(event => event.type === 'turn/end'),
       droppedUnrun: true,
     })
@@ -153,7 +143,6 @@ describe('foldConsumedWork', () => {
       target: 'next-turn', start: 0, removedCount: 1, inserted: [message('rewritten')], outcome: 'canceled',
     })
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldConsumedWork(session.snapshotEvents()).droppedUnrun).toBe(false)
   })
 
@@ -163,9 +152,7 @@ describe('foldConsumedWork', () => {
     cancelPending(session)
     steppedTurn(session, 2, { kind: 'completed' })
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldConsumedWork(session.snapshotEvents())).toEqual({
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       end: session.snapshotEvents().findLast(event => event.type === 'turn/end'),
       droppedUnrun: false,
     })
diff --git a/packages/core/session/README.i18n.yaml b/packages/core/session/README.i18n.yaml
index 773d428da8..2e2efcb90f 100644
--- a/packages/core/session/README.i18n.yaml
+++ b/packages/core/session/README.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write packages/core/session/README.md
-README.md: ebe4c1c29992b29b07ad38d7368ca5cef2253ee0
-README.zh.md: f5d0ac59f1276e4fe59c1cc449dcf6ce5a082aba
+README.md: e61481d1f5b62e24499b0db676a9ae62cce8f0c0
+README.zh.md: 9350a98c57261a4fc78487578717707a9393b502
diff --git a/packages/core/session/README.md b/packages/core/session/README.md
index ebe4c1c299..e61481d1f5 100644
--- a/packages/core/session/README.md
+++ b/packages/core/session/README.md
@@ -55,7 +55,7 @@ Append, seed/restore, and event adoption/snapshot reject any `header.system` and
 
 ### Read the log
 
-`session.seq` reads the current log length without materializing an array, and `session.eventAt(seq)` reads one accepted, deeply frozen event by sequence number. `session.snapshotEvents(fromSeq?, toSeqExclusive?)` materializes a frozen, stable snapshot of a half-open range; a complete current snapshot is cached until the next append. `eventAt()`, `snapshotEvents()`, and `ownEvents()` are deprecated: existing logic may remain unmigrated for now, but new calls are prohibited ([rationale](../../../.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md)). Callers that only need a length use `seq`.
+`session.seq` reads the current log length without materializing an array, and `session.eventAt(seq)` reads one accepted, deeply frozen event by sequence number. `session.snapshotEvents(fromSeq?, toSeqExclusive?)` materializes a frozen, stable snapshot of a half-open range; a complete current snapshot is cached until the next append. `eventAt()`, `snapshotEvents()`, and `ownEvents()` are deprecated: existing logic may remain unmigrated for now, but new production calls are prohibited. Repository test files may use these three readers under their scoped lint allowance ([policy](../../../.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md)). Callers that only need a length use `seq`.
 
 Session log positions use two numeric types. `SessionSeq` identifies an existing event or inclusive event watermark; `SessionLogOffset` identifies a gap, prefix length, or read boundary and may equal the event count. `SessionSeqCursor` adds the `-1` “no event yet” value, while `OptionalSessionSeq` uses `null` when absence is data. The constructors validate non-negative safe integers, and the brands disappear at runtime, so durable JSON and wire values remain ordinary numbers.
 
diff --git a/packages/core/session/README.zh.md b/packages/core/session/README.zh.md
index f5d0ac59f1..9350a98c57 100644
--- a/packages/core/session/README.zh.md
+++ b/packages/core/session/README.zh.md
@@ -55,7 +55,7 @@ session.deriveMessages()         // the derived model history
 
 ### 读取日志
 
-`session.seq` 无需物化数组即可读取当前日志长度，`session.eventAt(seq)` 按序列号读取单个已接受且深度冻结的事件。`session.snapshotEvents(fromSeq?, toSeqExclusive?)` 会物化半开区间的冻结稳定快照；当前完整快照会缓存到下一次追加。`eventAt()`、`snapshotEvents()` 和 `ownEvents()` 已弃用：现有逻辑可以暂不迁移，但禁止新增调用（[理由](../../../.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.zh.md)）。只需要长度的调用方使用 `seq`。
+`session.seq` 无需物化数组即可读取当前日志长度，`session.eventAt(seq)` 按序列号读取单个已接受且深度冻结的事件。`session.snapshotEvents(fromSeq?, toSeqExclusive?)` 会物化半开区间的冻结稳定快照；当前完整快照会缓存到下一次追加。`eventAt()`、`snapshotEvents()` 和 `ownEvents()` 已弃用：现有逻辑可以暂不迁移，但禁止新增生产调用。仓库测试文件可以在限定范围的 lint 豁免下使用这三个读取方法（[策略](../../../.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.zh.md)）。只需要长度的调用方使用 `seq`。
 
 会话日志位置使用两种数字类型。`SessionSeq` 标识已有事件或包含端点的事件水位；`SessionLogOffset` 标识间隙、前缀长度或读取边界，并且可以等于事件数量。`SessionSeqCursor` 添加 `-1` 这个“尚无事件”值，`OptionalSessionSeq` 则在缺失本身属于数据时使用 `null`。构造函数会校验非负安全整数，品牌在运行时会被擦除，因此持久 JSON 与 wire 值仍是普通数字。
 
diff --git a/packages/core/session/tests/canonical-envelopes.spec.ts b/packages/core/session/tests/canonical-envelopes.spec.ts
index 3177f333d6..123852762d 100644
--- a/packages/core/session/tests/canonical-envelopes.spec.ts
+++ b/packages/core/session/tests/canonical-envelopes.spec.ts
@@ -121,7 +121,6 @@ describe('canonical event payload acceptance', () => {
         expect(copy).toEqual(event)
         if (path === 'adopt' || path === 'snapshot') expect(accept(copy)).toEqual(event)
       }
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(Session.create(id, [event]).eventAt(SessionSeq(0))).toEqual(event)
     }
   })
@@ -179,7 +178,6 @@ describe('canonical event payload acceptance', () => {
       const prepared = ctx.sessions.prepare(id, {
         seed: [event], meta: { ...header }, inheritedEventCount: SessionLogOffset(0), eventState,
       })
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(prepared.eventAt(SessionSeq(0))).toBe(event)
       expect(prepared.requestHeader()).toEqual({ config })
       expect(ctx.sessions.get(id)).toBeUndefined()
@@ -205,7 +203,6 @@ describe('canonical event payload acceptance', () => {
       const published = vi.fn()
       ctx.on('session/created', created)
       ctx.on('session/event', published)
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const events = session.snapshotEvents()
       const messages = session.deriveMessages()
       for (const { event } of invalidData) {
@@ -213,7 +210,6 @@ describe('canonical event payload acceptance', () => {
         expect(() => ctx.sessions.create(SessionId('invalid-seed'), { seed: [event] })).toThrow()
         expect(ctx.sessions.get(SessionId('invalid-seed'))).toBeUndefined()
         expect(session.seq).toBe(0)
-        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         expect(session.snapshotEvents()).toBe(events)
         expect(session.surface.nodes).toEqual([])
         expect(session.surface.replaceGeneration).toBe(0)
@@ -283,7 +279,6 @@ describe('canonical event-local surface metadata', () => {
       expect(() => accept(structuredClone(event))).not.toThrow()
     }
     const session = Session.create(id, [event])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.eventAt(SessionSeq(0))).toEqual(event)
     expect(session.surface.nodes).toEqual([])
     expect(session.deriveMessages()).toEqual([])
diff --git a/packages/core/session/tests/derived-cache.spec.ts b/packages/core/session/tests/derived-cache.spec.ts
index 35bf0fa15d..21d2b7153b 100644
--- a/packages/core/session/tests/derived-cache.spec.ts
+++ b/packages/core/session/tests/derived-cache.spec.ts
@@ -16,7 +16,6 @@ function userText(session: Session, text: string): void {
 
 /** From-scratch oracle: replay the log into a fresh session and derive. */
 function scratch(session: Session): unknown {
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return Session.create(SessionId(`${session.id}-scratch-${session.seq}`), session.snapshotEvents()).deriveMessages()
 }
 
diff --git a/packages/core/session/tests/fork.spec.ts b/packages/core/session/tests/fork.spec.ts
index a62019e23c..d67538ded8 100644
--- a/packages/core/session/tests/fork.spec.ts
+++ b/packages/core/session/tests/fork.spec.ts
@@ -47,7 +47,6 @@ function firstUserMessage(events: readonly SessionEvent[]): SessionEvent<'user/m
 }
 
 function lastSeq(session: Session): SessionSeq {
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   const event = session.snapshotEvents().at(-1)
   if (event === undefined) throw new Error('missing last event')
   return event.seq
@@ -55,7 +54,6 @@ function lastSeq(session: Session): SessionSeq {
 
 /** A seeded child's fork-inherited prefix. */
 function inherited(session: Session): readonly SessionEvent[] {
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return session.snapshotEvents(SessionLogOffset(0), session.inheritedEventCount)
 }
 
@@ -83,19 +81,13 @@ describe('SessionStore.fork', () => {
 
     const child = sessions.fork(SessionId('parent'), undefined, SessionId('child'))
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(inherited(child)).toEqual(source.snapshotEvents())
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.snapshotEvents()).not.toBe(source.snapshotEvents())
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.snapshotEvents()[1]).not.toBe(source.snapshotEvents()[1])
     expect(() => {
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       firstUserMessage(child.snapshotEvents()).data.content[0] = { type: 'text', text: 'child mutation' }
     }).toThrow(TypeError)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(firstUserMessage(source.snapshotEvents()).data.content).toEqual([{ type: 'text', text: 'hello' }])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(firstUserMessage(child.snapshotEvents()).data.content).toEqual([{ type: 'text', text: 'hello' }])
     expect(child.header).toMatchObject({
       id: SessionId('child'),
@@ -114,7 +106,6 @@ describe('SessionStore.fork', () => {
 
     const child = sessions.fork(source, undefined, SessionId('log-only-child'))
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(inherited(child)).toEqual(source.snapshotEvents())
     expect(inherited(child).at(-1)).toMatchObject({
       type: 'test/log-only',
@@ -132,7 +123,6 @@ describe('SessionStore.fork', () => {
 
     const child = sessions.fork(source, firstBoundary, SessionId('child-from-first'))
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(inherited(child)).toEqual(source.snapshotEvents().slice(0, firstBoundary + 1))
     expect(child.inheritedEventCount).toBe(firstBoundary + 1)
     expect(child.deriveMessages()).toEqual([{
@@ -176,12 +166,9 @@ describe('SessionStore.fork', () => {
     const child = sessions.fork(parent, undefined, SessionId('bracket-child'))
 
     // Parent: no end-seed event follows the bracket, so its owner treats it as live.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(parent.snapshotEvents().at(-1)).toBe(open)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(parent.snapshotEvents().some(event => event.type === 'session/end-seed')).toBe(false)
     // Child: the same bracket is before end-seed, so it belongs to the seed.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const boundary = child.snapshotEvents().at(-1)
     expect(boundary).toMatchObject({ type: 'session/end-seed' })
     expect(boundary!.seq).toBeGreaterThan(open.seq)
diff --git a/packages/core/session/tests/invariant.spec.ts b/packages/core/session/tests/invariant.spec.ts
index 778e4b560f..9b8b281cf5 100644
--- a/packages/core/session/tests/invariant.spec.ts
+++ b/packages/core/session/tests/invariant.spec.ts
@@ -83,7 +83,6 @@ describe('session-log invariants', () => {
     expect(() => session.append('turn/start', {
       turn: 1,
     })).toThrow('later dispatch veto')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([])
     expect(() => {
       session.append('turn/start', { turn: 1 })
@@ -429,7 +428,6 @@ describe('session-log invariants', () => {
     const open = ctx.sessions.create(SessionId('inherited-inside-open-turn'), { seed: [
       { type: 'turn/start', seq: SessionSeq(0), time: 1, data: { turn: 1 } },
     ] })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(open.snapshotEvents().map(event => event.type)).toEqual(['turn/start', 'session/end-seed'])
     // Still open afterwards: the boundary moves no cursor.
     expect(() => open.append('turn/start', { turn: 2 }))
diff --git a/packages/core/session/tests/properties.spec.ts b/packages/core/session/tests/properties.spec.ts
index 200a1107f0..07bf37ac02 100644
--- a/packages/core/session/tests/properties.spec.ts
+++ b/packages/core/session/tests/properties.spec.ts
@@ -107,7 +107,6 @@ describe('Session properties', () => {
   it('seq is strictly monotonic and zero-based contiguous', () => {
     fc.assert(fc.property(logArb, (events) => {
       const session = build(events)
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       session.snapshotEvents().forEach((event, i) => { expect(event.seq).toBe(i) })
       expect(session.seq).toBe(events.length)
     }))
@@ -116,11 +115,9 @@ describe('Session properties', () => {
   it('replay-from-seed reproduces the derivation identically', () => {
     fc.assert(fc.property(logArb, (events) => {
       const original = build(events)
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const replayed = Session.create(SessionId(`replay-${counter++}`), original.snapshotEvents())
       expect(replayed.deriveMessages()).toEqual(original.deriveMessages())
       // Every explicit replay grows by exactly one log-only boundary.
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(replayed.snapshotEvents().slice(0, original.seq)).toEqual(original.snapshotEvents())
       expect(replayed.seq).toBe(original.seq + 1)
     }))
@@ -129,12 +126,9 @@ describe('Session properties', () => {
   it('replaying a log that already ends in end-seed adds no further marker', () => {
     fc.assert(fc.property(logArb, (events) => {
       const original = build(events)
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const once = Session.create(SessionId(`idem-a-${counter++}`), original.snapshotEvents())
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const twice = Session.create(SessionId(`idem-b-${counter++}`), once.snapshotEvents())
       // Lazy resume makes browsing a pickup, so this must not grow per open.
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(twice.snapshotEvents()).toEqual(once.snapshotEvents())
     }))
   })
@@ -168,7 +162,6 @@ describe('Session properties', () => {
     fc.assert(fc.property(logArb, (events) => {
       const session = build(events)
       const messages = session.deriveMessages()
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const before = structuredClone(session.snapshotEvents())
       for (const m of messages) {
         expect(['user', 'assistant', 'system']).toContain(m.role)
@@ -177,7 +170,6 @@ describe('Session properties', () => {
         expect(Object.isFrozen(m)).toBe(true)
         expect(() => { m.content.push({ type: 'text', text: 'mutation' }) }).toThrow(TypeError)
       }
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(session.snapshotEvents()).toEqual(before)
     }))
   })
diff --git a/packages/core/session/tests/request-header.spec.ts b/packages/core/session/tests/request-header.spec.ts
index 5aa4a5695b..c7b2719b6e 100644
--- a/packages/core/session/tests/request-header.spec.ts
+++ b/packages/core/session/tests/request-header.spec.ts
@@ -80,7 +80,6 @@ describe('foldRequestHeader', () => {
       content: [{ type: 'text', text: 'hi' }], source: { kind: 'user' },
     }), { surfaceOp: 'append' })
     session.append('request/header', { header: { config: { provider: 'mock', model: 'other' } }, reason: 'change' })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldRequestHeader(session.snapshotEvents())).toEqual({ config: { provider: 'mock', model: 'other' } })
   })
 })
diff --git a/packages/core/session/tests/sequence-types.spec.ts b/packages/core/session/tests/sequence-types.spec.ts
index b6aaee8a16..d20d2c721f 100644
--- a/packages/core/session/tests/sequence-types.spec.ts
+++ b/packages/core/session/tests/sequence-types.spec.ts
@@ -69,13 +69,11 @@ describe('Session log positions', () => {
       isSeeded: true,
     }
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const child = Session.create(id, source.snapshotEvents(), header, source.seq)
 
     expect(child.header.isSeeded).toBe(true)
     expect('seedLength' in child.header).toBe(false)
     expect(child.inheritedEventCount).toBe(2)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.ownEvents().map(event => event.type)).toEqual(['session/end-seed'])
     expect(child.isOwnSeq(SessionSeq(1))).toBe(false)
     expect(child.isOwnSeq(SessionSeq(2))).toBe(true)
@@ -92,7 +90,6 @@ describe('Session log positions', () => {
     parent.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
     const id = SessionId('suffix-child')
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const child = Session.create(id, parent.snapshotEvents(), {
       version: SESSION_FORMAT_VERSION,
       id,
@@ -101,7 +98,6 @@ describe('Session log positions', () => {
     }, parent.seq)
     child.append('request/context', { provider: 'provider', model: 'model' })
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.ownEvents().map(event => event.type)).toEqual([
       'session/end-seed',
       'request/context',
diff --git a/packages/core/session/tests/session.spec.ts b/packages/core/session/tests/session.spec.ts
index ed5dfe46d4..d6762ba147 100644
--- a/packages/core/session/tests/session.spec.ts
+++ b/packages/core/session/tests/session.spec.ts
@@ -71,7 +71,6 @@ describe('Session', () => {
     session.append('turn/start', { turn: 1 })
     session.append('turn/end', { turn: 1, reason: { kind: 'max-tokens' } })
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = session.snapshotEvents().findLast(e => e.type === 'turn/end')!
     expect(turnEnd.data.reason).toEqual({ kind: 'max-tokens' })
     // survives a structuredClone (the persistence-serialization boundary)
@@ -82,11 +81,8 @@ describe('Session', () => {
     const session = Session.create(SessionId('aborted'))
     session.append('turn/start', { turn: 1 })
     session.append('turn/end', { turn: 1, reason: { kind: 'aborted', reason: { kind: 'user' } } })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const replayed = Session.create(SessionId('aborted-replay'), structuredClone(session.snapshotEvents()))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(replayed.snapshotEvents().slice(0, -1)).toEqual(session.snapshotEvents())
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = replayed.snapshotEvents().findLast(event => event.type === 'turn/end')
     expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason)
       .toEqual({ kind: 'aborted', reason: { kind: 'user' } })
@@ -119,7 +115,6 @@ describe('Session', () => {
     session.append('user/message', message, { surfaceOp: 'append' })
 
     expect(session.deriveMessages()).toEqual([message])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const event = session.snapshotEvents()[0]
     expect(event?.type === 'user/message' && event.data.source).toEqual({ kind: 'plugin', plugin: 'agent-instructions' })
   })
@@ -144,11 +139,9 @@ describe('Session', () => {
     }, { surfaceOp: 'append' })
     original.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const replayed = Session.create(SessionId('s3-replay'), original.snapshotEvents())
     expect(replayed.deriveMessages()).toEqual(original.deriveMessages())
     // The seed verbatim, plus the end-seed event the constructor appends.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(replayed.snapshotEvents().slice(0, original.seq)).toEqual(original.snapshotEvents())
     expect(replayed.seq).toBe(original.seq + 1)
     expect(replayed.firstLiveSeq).toBe(original.seq)
@@ -156,20 +149,16 @@ describe('Session', () => {
 
   it('marks an explicitly empty seed without marking a fresh session', () => {
     const fresh = Session.create(SessionId('fresh-empty'))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(fresh.snapshotEvents()).toEqual([])
 
     const resumed = Session.create(SessionId('resumed-empty'), [])
     expect(resumed.firstLiveSeq).toBe(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(resumed.snapshotEvents()).toMatchObject([
       { type: 'session/end-seed', seq: 0, data: {} },
     ])
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const reopened = Session.create(SessionId('reopened-empty'), resumed.snapshotEvents())
     expect(reopened.firstLiveSeq).toBe(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(reopened.snapshotEvents()).toEqual(resumed.snapshotEvents())
   })
 
@@ -199,7 +188,6 @@ describe('Session', () => {
     const unrelatedPrimitiveData = {
       type: 'plugin/event', seq: 0, time: 1, data: null,
     } as unknown as SessionEvent
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(Session.create(SessionId('primitive-plugin-data'), [unrelatedPrimitiveData]).snapshotEvents().slice(0, 1))
       .toEqual([unrelatedPrimitiveData])
   })
@@ -262,7 +250,6 @@ describe('Session', () => {
       SessionLogOffset(0),
       'detached',
     )
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(restored.eventAt(SessionSeq(0))).toBe(mismatchedMessage)
     expect(Object.isFrozen(mismatchedMessage)).toBe(false)
   })
@@ -532,7 +519,6 @@ describe('Session', () => {
         reason: 'initial',
       },
     } as const
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(Session.create(SessionId('reasoning-effort'), [valid]).snapshotEvents()[0])
       .toEqual(valid)
 
@@ -563,7 +549,6 @@ describe('Session', () => {
         reason: 'initial',
       },
     } as const
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(Session.create(SessionId('adapter-defaults'), [valid]).snapshotEvents()[0]).toEqual(valid)
 
     for (const adapterDefaults of [
@@ -594,7 +579,6 @@ describe('Session', () => {
         isError: false,
       }),
     }, { surfaceOp: 'append' })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const before = structuredClone(session.snapshotEvents())
 
     // A misbehaving consumer tries to mutate the messages it was handed.
@@ -611,7 +595,6 @@ describe('Session', () => {
     messages.reverse()
 
     // The log is unchanged: deep-equal to the snapshot taken before mutation.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual(before)
     // And a fresh derivation still reflects the original content and order.
     expect(session.deriveMessages()[0]!.content).toEqual([{ type: 'text', text: 'original' }])
@@ -641,7 +624,6 @@ describe('Session', () => {
     cyclic['self'] = cyclic
     expect(bad(cyclic)).toThrow(/non-JSON-serializable/)
     // The rejected appends never entered the log.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(0)
   })
 
@@ -656,14 +638,12 @@ describe('Session', () => {
     })))
       .toThrow(/surface-eligible and requires a surfaceOp marker/)
     // The rejected append never entered the log (only turn/start is present).
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(1)
   })
 
   it('accepts dense arrays and nested plain objects', () => {
     const session = Session.create(SessionId('s6'))
     expect(() => session.append('user/message', { content: [{ type: 'text', text: 'x' }], source: { kind: 'user' }, extra: [1, 2, [3, { a: null, b: true }]] } as never, { surfaceOp: 'append' })).not.toThrow()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(1)
   })
 
@@ -708,7 +688,6 @@ describe('Session', () => {
       { type: 'turn/end' as const, seq: 2, time: 3, data: { turn: 1, reason: { kind: 'completed' as const } } },
     ] as SessionEvent[]
     const session = Session.create(SessionId('seed-ok'), goodSeed)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().slice(0, 3)).toEqual(goodSeed)
     expect(session.firstLiveSeq).toBe(3)
   })
@@ -734,7 +713,6 @@ describe('Session', () => {
     const session = Session.create(SessionId('seed-entry-snapshot'), seed)
 
     expect(reads).toBe(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().slice(0, 1)).toEqual([accepted])
   })
 
@@ -752,7 +730,6 @@ describe('Session', () => {
     const session = Session.create(SessionId('seed-nested-drift'), seed)
 
     expect(reads).toBe(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()[0]!.data).toEqual({ value: 'accepted' })
   })
 
@@ -814,7 +791,6 @@ describe('Session', () => {
 
     const session = Session.create(SessionId('seed-null-prototype'), [event])
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().slice(0, 1)).toEqual([{ ...event }])
   })
 
@@ -847,7 +823,6 @@ describe('Session', () => {
     }] as unknown as SessionEvent[]
 
     const session = Session.create(SessionId('seed-unstable-metadata'), seed)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const event = session.snapshotEvents()[1]!
     if (event.type !== 'user/message') throw new Error('test fixture must remain a user/message')
 
@@ -908,7 +883,6 @@ describe('Session', () => {
     const um = seed[1]!
     ;(um.data as { content: { type: 'text'; text: string }[] }).content[0]!.text = 'HACKED'
     ;(um.data as Record<string, unknown>)['injected'] = 1n // would have failed validation
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const logged = session.snapshotEvents()[1]!
     expect(logged.type === 'user/message' && (logged.data.content[0] as { text: string }).text).toBe('original')
     expect((logged.data as Record<string, unknown>)['injected']).toBeUndefined()
@@ -927,7 +901,6 @@ describe('Session', () => {
     // make session.snapshotEvents() diverge from the value that passed validation.
     data.content[0]!.text = 'HACKED'
     ;(data as Record<string, unknown>)['injected'] = 1n
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const logged = session.snapshotEvents()[0]!
     expect(logged.type === 'user/message' && (logged.data.content[0] as { text: string }).text).toBe('original')
     expect((logged.data as Record<string, unknown>)['injected']).toBeUndefined()
@@ -950,7 +923,6 @@ describe('Session', () => {
 
     expect(reads).toBe(1)
     expect(event.data).toEqual({ value: 'accepted' })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([event])
   })
 
@@ -964,7 +936,6 @@ describe('Session', () => {
       }),
       { surfaceOp: { op: 'replace', startSeq: 1n, endSeq: 2 } } as never,
     )).toThrow(/non-JSON-serializable surface metadata/)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([])
   })
 
@@ -983,7 +954,6 @@ describe('Session', () => {
       }),
       { surfaceOp: new ReplaceOp() },
     )).toThrow(/non-JSON-serializable surface metadata/)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([])
   })
 
@@ -1015,7 +985,6 @@ describe('Session', () => {
 
     expect(reads).toBe(1)
     expect(event.surfaceOp).toEqual({ op: 'replace', startSeq: 0, endSeq: 0 })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([source, event])
   })
 
@@ -1037,7 +1006,6 @@ describe('Session', () => {
       surfaceOp: 'append',
       sourceEventSeqs: [0, -1],
     })).toThrow(/non-negative safe integers/)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([])
   })
 
@@ -1061,7 +1029,6 @@ describe('Session', () => {
       data: { turn: 1 },
       surfaceOp: 'append',
     } as unknown as SessionEvent])).toThrow(/invalid seed event.*not surface-eligible/)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([])
   })
 
@@ -1072,7 +1039,6 @@ describe('Session', () => {
       time: 1,
       data: { turn: 1 },
     }])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const seededEvent = seeded.snapshotEvents()[0]!
     if (seededEvent.type !== 'turn/start') throw new Error('test fixture must remain a turn/start')
     expect(Object.isFrozen(seededEvent)).toBe(true)
@@ -1093,24 +1059,20 @@ describe('Session', () => {
   it('returns cached frozen event-array snapshots that do not grow after append', () => {
     const session = Session.create(SessionId('events-snapshot'))
     session.append('turn/start', { turn: 1 })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const before = session.snapshotEvents()
     const beforeEvent = before[0]!
     if (beforeEvent.type !== 'turn/start') throw new Error('test fixture must remain a turn/start')
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toBe(before)
     expect(Object.isFrozen(before)).toBe(true)
     expect(() => { (before as SessionEvent[]).push(beforeEvent) }).toThrow(TypeError)
     expect(() => { beforeEvent.data.turn = 99 }).toThrow(TypeError)
 
     session.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const after = session.snapshotEvents()
     expect(before).toHaveLength(1)
     expect(after).toHaveLength(2)
     expect(after).not.toBe(before)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toBe(after)
   })
 
@@ -1119,14 +1081,10 @@ describe('Session', () => {
     const start = session.append('turn/start', { turn: 1 })
     const end = session.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.eventAt(SessionSeq(0))).toBe(start)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.eventAt(SessionSeq(1))).toBe(end)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.eventAt(SessionSeq(2))).toBeUndefined()
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const range = session.snapshotEvents(SessionLogOffset(1), SessionLogOffset(2))
     expect(range).toEqual([end])
     expect(Object.isFrozen(range)).toBe(true)
@@ -1272,7 +1230,6 @@ describe('Session', () => {
     const marked = Session.create(SessionId('ignorable-envelope'), [
       { ...base, ignorable: true } as SessionEvent,
     ])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(marked.snapshotEvents()[0]?.ignorable).toBe(true)
   })
 })
@@ -1317,7 +1274,6 @@ describe('SessionStore', () => {
     a.append('user/message', createUserMessage({
       content: [{ type: 'text', text: 'q' }], source: { kind: 'user' },
     }), { surfaceOp: 'append' })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const forked = ctx.sessions.create(SessionId('fork'), { seed: a.snapshotEvents() })
     expect(forked.deriveMessages()).toEqual(a.deriveMessages())
   })
@@ -1581,7 +1537,6 @@ describe('SessionStore', () => {
     const heard: SessionEvent[] = []
     let committedBeforeNotify = false
     ctx.on('session/event', (observedSession, event) => {
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       committedBeforeNotify = observedSession.snapshotEvents().at(-1) === event
       throw new Error('sync event observer')
     })
@@ -1595,7 +1550,6 @@ describe('SessionStore', () => {
       })
     }).not.toThrow()
     expect(committedBeforeNotify).toBe(true)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([appended])
     expect(heard).toEqual([appended])
     await Promise.resolve()
@@ -1619,7 +1573,6 @@ describe('SessionStore', () => {
       const [observedSession, event] = args as [Session, SessionEvent]
       validations.push({
         event,
-        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         logLength: observedSession.snapshotEvents().length,
         frozen: Object.isFrozen(event) && Object.isFrozen(event.data),
       })
@@ -1633,7 +1586,6 @@ describe('SessionStore', () => {
     expect(() => session.append('turn/start', {
       turn: 1,
     })).toThrow('reject first candidate')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([])
     expect(observed).toEqual([])
 
@@ -1646,7 +1598,6 @@ describe('SessionStore', () => {
     ])
     expect(validations.map(({ event }) => event.seq)).toEqual([0, 0])
     expect(validations[1]!.event).toBe(appended)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([appended])
     expect(observed).toEqual([appended])
   })
@@ -1678,7 +1629,6 @@ describe('SessionStore', () => {
       sourceEventSeqs: [SessionSeq(2)],
     })).toThrow('reject surface candidate')
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(3)
     expect(surface.nodes).toEqual([2])
     expect(surface.replaceGeneration).toBe(0)
@@ -1704,7 +1654,6 @@ describe('SessionStore', () => {
     expect(() => session.append('turn/start', {
       turn: 1,
     })).toThrow('dispatch instrumentation rejected the carrier')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([])
     expect(observed).toEqual([])
   })
@@ -1724,7 +1673,6 @@ describe('SessionStore', () => {
     const appended = session.append('turn/start', {
       turn: 1,
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([appended])
     expect(heard).toEqual([appended])
     expect(warnings).toEqual([
@@ -1756,7 +1704,6 @@ describe('SessionStore', () => {
       turn: 1,
     })
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([appended])
     expect(order).toEqual(['resolve:live', 'observe:live', 'dispose:detached'])
     expect(ctx.sessions.get(session.id)).toBeUndefined()
diff --git a/packages/core/session/tests/surface.spec.ts b/packages/core/session/tests/surface.spec.ts
index 5436777e22..6d10e22335 100644
--- a/packages/core/session/tests/surface.spec.ts
+++ b/packages/core/session/tests/surface.spec.ts
@@ -328,7 +328,6 @@ describe('SurfaceManager', () => {
       sourceEventSeqs: sourceSeqs(2, 1),
     })
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const folded = foldSurface(s.snapshotEvents())
     expect(folded.nodes).toEqual(s.surface.nodes)
     expect(folded.replacements).toEqual([
@@ -338,9 +337,7 @@ describe('SurfaceManager', () => {
     folded.nodes[0] = SessionSeq(99)
     folded.replacements[0]!.shadowedSeqs.push(SessionSeq(99))
     expect(s.surface.nodes).toEqual([3])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldSurface(s.snapshotEvents()).nodes).toEqual([3])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldSurface(s.snapshotEvents()).replacements[0]!.shadowedSeqs).toEqual([0])
   })
 
@@ -357,7 +354,6 @@ describe('SurfaceManager', () => {
     expect(s.surface.nodes).toEqual([1])
     const manager = s.surface as unknown as { _state: object }
     expect(Object.hasOwn(manager._state, 'replacements')).toBe(false)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldSurface(s.snapshotEvents()).replacements).toEqual([
       { seq: 1, start: 0, end: 0, shadowedSeqs: [0] },
     ])
@@ -392,7 +388,6 @@ describe('SurfaceManager', () => {
     const surface = s.surface
     const nodes = surface.nodes
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(nodes).toEqual(foldSurface(s.snapshotEvents()).nodes)
     expect(surface.replaceGeneration).toBe(0)
 
@@ -413,12 +408,10 @@ describe('SurfaceManager', () => {
       { surfaceOp: surfaceOp({ op: 'replace', startSeq: 0, endSeq: 0 }) },
     )).toThrow(/missing 0/)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(s.snapshotEvents()).toHaveLength(1)
     expect(s.surface).toBe(surface)
     expect(surface.nodes).toEqual([0])
     expect(surface.replaceGeneration).toBe(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(surface.nodes).toEqual(foldSurface(s.snapshotEvents()).nodes)
 
     s.append('user/message', createUserMessage({
@@ -427,7 +420,6 @@ describe('SurfaceManager', () => {
     expect(surface.nodes).toBe(nodes)
     expect(surface.nodes).toEqual([0, 1])
     expect(surface.replaceGeneration).toBe(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(surface.nodes).toEqual(foldSurface(s.snapshotEvents()).nodes)
   })
 
@@ -501,7 +493,6 @@ describe('SurfaceManager', () => {
         isError: false,
       }),
     }, { surfaceOp: 'append' })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const replayed = Session.create(SessionId('replay'), original.snapshotEvents())
     expect(replayed.surface.nodes).toEqual([1, 2, 4])
     expect(replayed.deriveMessages()).toEqual(original.deriveMessages())
@@ -603,7 +594,6 @@ describe('SurfaceManager', () => {
     // Mutate caller's array after append.
     sources.push(SessionSeq(1))
     sources[0] = SessionSeq(99)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const logged = s.snapshotEvents()[1]! as SurfaceEvent
     expect(logged.sourceEventSeqs).toEqual([0])
   })
@@ -639,7 +629,6 @@ describe('SurfaceManager', () => {
     })
     // Mutate caller's object after append.
     op.startSeq = SessionSeq(99)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const logged = s.snapshotEvents()[1]! as SurfaceEvent
     expect(logged.surfaceOp).toEqual({ op: 'replace', startSeq: 0, endSeq: 0 })
   })
@@ -730,9 +719,7 @@ describe('Session.append surface opts', () => {
     expect(event.sourceEventSeqs).toEqual([0, 1])
     expect(event.surfaceOp).toBe('append')
     // The logged event matches the returned event.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect((s.snapshotEvents()[2]! as SurfaceEvent).sourceEventSeqs).toEqual([0, 1])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect((s.snapshotEvents()[2]! as SurfaceEvent).surfaceOp).toBe('append')
   })
 
@@ -766,9 +753,7 @@ describe('Session.append surface opts', () => {
   it('a non-surface event carries no surface fields', () => {
     const s = Session.create(SessionId('noopts'))
     s.append('turn/start', { turn: 1 })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect((s.snapshotEvents()[0] as SessionEvent<SurfaceEventType>).sourceEventSeqs).toBeUndefined()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect((s.snapshotEvents()[0] as SessionEvent<SurfaceEventType>).surfaceOp).toBeUndefined()
   })
 
@@ -821,14 +806,12 @@ describe('surface type guards', () => {
 
   it('isSurfaceEvent narrows a fully-formed surface event', () => {
     const s = surfaceSession()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const userMessage = s.snapshotEvents().find(e => e.type === 'user/message')!
     expect(isSurfaceEvent(userMessage)).toBe(true)
   })
 
   it('isSurfaceEvent rejects a non-surface-eligible type', () => {
     const s = surfaceSession()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnStart = s.snapshotEvents().find(e => e.type === 'turn/start')!
     expect(isSurfaceEvent(turnStart)).toBe(false)
   })
@@ -852,9 +835,7 @@ describe('surface type guards', () => {
     s.append('user/message', createUserMessage({
       content: [{ type: 'text', text: 'checkpoint' }], source: { kind: 'plugin', plugin: 'compact' },
     }), { surfaceOp: surfaceOp({ op: 'replace', startSeq: 1, endSeq: 2 }), sourceEventSeqs: sourceSeqs(1, 2) })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const appended = s.snapshotEvents().find(e => e.type === 'user/message')!
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const replacement = s.snapshotEvents().at(-1)!
 
     expect(isAppendSurfaceEvent(appended)).toBe(true)
@@ -865,7 +846,6 @@ describe('surface type guards', () => {
 
   it('rejects log-only and markerless events from both marker guards', () => {
     const s = surfaceSession()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnStart = s.snapshotEvents().find(e => e.type === 'turn/start')!
     // A surface-eligible type whose mandatory marker is absent has no origin at
     // all: it never entered the surface.
diff --git a/packages/core/tools/tests/invariant.spec.ts b/packages/core/tools/tests/invariant.spec.ts
index 795bef2ad8..202963379e 100644
--- a/packages/core/tools/tests/invariant.spec.ts
+++ b/packages/core/tools/tests/invariant.spec.ts
@@ -152,7 +152,6 @@ describe('tool-pipeline invariants', () => {
       name: 'echo',
       arguments: {},
     })).toThrow(/parentCallId child does not belong to rootCallId another-root/)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'tool/ptc-dispatch-start'
       && String(event.data.subCallId) === 'invalid-grandchild')).toBe(false)
   })
diff --git a/packages/core/tools/tests/ptc.spec.ts b/packages/core/tools/tests/ptc.spec.ts
index 2f2dfebd1a..11bf14e01a 100644
--- a/packages/core/tools/tests/ptc.spec.ts
+++ b/packages/core/tools/tests/ptc.spec.ts
@@ -1484,7 +1484,6 @@ describe('the run_code dispatch bridge', () => {
     expect(result.isError).toBe(false)
     expect(result.isError ? undefined : result.value).toEqual({ logs: [], result: depth })
     expect({ observedDepth, observedLeaf }).toEqual({ observedDepth: depth, observedLeaf: 'leaf' })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const dispatch = session.snapshotEvents().find(event => event.type === 'tool/ptc-dispatch')
     if (dispatch === undefined) throw new Error('expected a durable tool/ptc-dispatch event')
     const logged = dispatch.data.arguments as { nested: JsonValue }
diff --git a/packages/experimental/agent-team/tests/invariant.spec.ts b/packages/experimental/agent-team/tests/invariant.spec.ts
index df9ec3b3a7..5dd8dba256 100644
--- a/packages/experimental/agent-team/tests/invariant.spec.ts
+++ b/packages/experimental/agent-team/tests/invariant.spec.ts
@@ -44,7 +44,6 @@ describe('Agent Teams stream invariant', () => {
       code: 'INVARIANT',
       packageName: '@deepseek-ai/dsh-experimental-agent-team',
     }))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(invalid.snapshotEvents()).toEqual([])
   })
 
@@ -70,7 +69,6 @@ describe('Agent Teams stream invariant', () => {
       code: 'INVARIANT',
       packageName: '@deepseek-ai/dsh-experimental-agent-team',
     }))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([])
   })
 })
diff --git a/packages/experimental/agent-team/tests/persistence.spec.ts b/packages/experimental/agent-team/tests/persistence.spec.ts
index c7d4414792..5237fc0301 100644
--- a/packages/experimental/agent-team/tests/persistence.spec.ts
+++ b/packages/experimental/agent-team/tests/persistence.spec.ts
@@ -31,7 +31,6 @@ function durable(agent: Agent): {
   pendingMessages: TeamMessageSnapshot[]
 } {
   let projected = teamProjectionDefinition.init(agent.session.header)
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   for (const event of agent.session.snapshotEvents()) projected = teamProjectionDefinition.apply(projected, event)
   if (projected.failure !== undefined) throw new Error(projected.failure)
   const state = projected
@@ -159,7 +158,6 @@ async function persistedChild(
   // Live sessions persist only through an attached agent-loop writer; this
   // bare fixture session seeds its durable log directly for the cold restart.
   const handle = await ctx.sessionPersistence.create(child.header)
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   await handle.append(child.snapshotEvents())
   await handle.close()
   return child
@@ -395,7 +393,6 @@ for (const backend of backends) {
       const checkpointEntered = Promise.withResolvers<undefined>()
       const releaseCheckpoint = Promise.withResolvers<undefined>()
       const delayedCheckpoint = vi.spyOn(second.ctx.sessions, 'flush').mockImplementation(async (session) => {
-        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         if (session.id === rootId && session.snapshotEvents().some(event =>
           event.type === 'team/message/delivered' && event.data.messageId === messageId)) {
           checkpointEntered.resolve(undefined)
diff --git a/packages/experimental/agent-team/tests/team.spec.ts b/packages/experimental/agent-team/tests/team.spec.ts
index d19f1522b7..79354a6427 100644
--- a/packages/experimental/agent-team/tests/team.spec.ts
+++ b/packages/experimental/agent-team/tests/team.spec.ts
@@ -35,7 +35,6 @@ function durable(agent: Agent): {
   pendingMessages: TeamMessageSnapshot[]
 } {
   let projected = teamProjectionDefinition.init(agent.session.header)
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   for (const event of agent.session.snapshotEvents()) projected = teamProjectionDefinition.apply(projected, event)
   if (projected.failure !== undefined) throw new Error(projected.failure)
   const state = projected
@@ -271,7 +270,6 @@ describe('Team identity and provisioning', () => {
     // Live sessions persist only through an attached agent-loop writer; this
     // bare fixture session seeds its durable log directly for the cold reread.
     const persisted = await ctx.sessionPersistence.create(liveSession.header)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     await persisted.append(liveSession.snapshotEvents())
     await persisted.close()
     await liveFiber.dispose()
@@ -471,7 +469,6 @@ describe('Team identity and provisioning', () => {
     await ctx.agentTeams.createTask(lead, { subject: 'parent task', description: 'belongs to parent' })
     const handle = await ctx.agents.create({
       sessionId: SessionId('ordinary-fork'),
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       seed: lead.session.snapshotEvents(),
       meta: { parentSession: lead.id, isSeeded: true },
       inheritedEventCount: SessionLogOffset(lead.session.seq),
@@ -954,7 +951,6 @@ describe('Team mailbox and waiting', () => {
     })
 
     await expect(teamInternals(ctx).mailbox.tryDispatch(lead, message, SIGNAL)).resolves.toBe(true)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(lead.session.snapshotEvents().some(event => event.type === 'agent/inbox/spliced'
       && event.data.inserted.some(input => input.source.kind === 'team-message'
         && input.source.messageId === message.id))).toBe(true)
@@ -999,14 +995,12 @@ describe('Team mailbox and waiting', () => {
       'team/message/delivered',
     ])
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const receiptCount = lead.session.snapshotEvents().filter(event => event.type === 'agent/inbox/spliced'
       && event.data.inserted.some(message => message.source.kind === 'team-message'
         && messageIds.has(message.source.messageId))).length
     await teamFiber.dispose()
     await ctx.plugin(TeamService, { maxPendingMessagesPerMember: 1 })
     await vi.waitFor(() => { expect(durable(lead).pendingMessages).toEqual([]) })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(lead.session.snapshotEvents().filter(event => event.type === 'agent/inbox/spliced'
       && event.data.inserted.some(message => message.source.kind === 'team-message'
         && messageIds.has(message.source.messageId)))).toHaveLength(receiptCount)
@@ -1208,7 +1202,6 @@ describe('Team mailbox and waiting', () => {
     expect(later.status).toBe('accepted')
     const target = await waitRunning(ctx, started.member.id)
     await vi.waitFor(() => {
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const accepted = target.session.snapshotEvents().flatMap(event => event.type === 'agent/inbox/spliced'
         ? event.data.inserted.flatMap(message => message.source.kind === 'team-message'
           ? [message.source.messageId]
diff --git a/packages/experimental/agent-team/tests/test-session-query.ts b/packages/experimental/agent-team/tests/test-session-query.ts
index 3b7554873a..233c493ad2 100644
--- a/packages/experimental/agent-team/tests/test-session-query.ts
+++ b/packages/experimental/agent-team/tests/test-session-query.ts
@@ -33,7 +33,6 @@ export class TestSessionQuery extends SessionQueryEngine {
     options: SessionObservationOptions = {},
   ): Promise<SessionObservation> {
     const live = this.ctx.sessions.get(sessionId)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     if (live !== undefined) return cut('live', live.header, live.snapshotEvents())
     const handle = await this.ctx.sessionPersistence.open(
       sessionId,
diff --git a/packages/experimental/tool-agent-team/tests/tool-team.spec.ts b/packages/experimental/tool-agent-team/tests/tool-team.spec.ts
index 74a8175fcd..6ae2fddca3 100644
--- a/packages/experimental/tool-agent-team/tests/tool-team.spec.ts
+++ b/packages/experimental/tool-agent-team/tests/tool-team.spec.ts
@@ -148,7 +148,6 @@ describe('dsh-tool-team', () => {
     expect(childAssembly.tools.map(schema => schema.name).filter(name => TOOL_NAMES.includes(name)).sort())
       .toEqual(TOOL_NAMES)
     expect(renderPrompt(childAssembly)).toContain('Your Team role is teammate; your Team name is tool-worker')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const initialPrompt = child.session.snapshotEvents().find(event => event.type === 'user/message'
       && event.data.source.kind === 'user')
     expect(initialPrompt?.type === 'user/message'
diff --git a/packages/feedback/command-feedback/tests/command-feedback.spec.ts b/packages/feedback/command-feedback/tests/command-feedback.spec.ts
index 40ef1755b4..e59020bfc6 100644
--- a/packages/feedback/command-feedback/tests/command-feedback.spec.ts
+++ b/packages/feedback/command-feedback/tests/command-feedback.spec.ts
@@ -73,7 +73,6 @@ async function run(test: Harness, suffix = ''): Promise<{ kind: string; text?: s
 
 /** Authoritative feedback payloads in log order. */
 function feedbackTexts(session: Session): string[] {
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return session.snapshotEvents()
     .filter(event => event.type === 'feedback/record')
     .map(event => event.data.text)
@@ -108,17 +107,14 @@ describe('/feedback human command', () => {
       text: `Feedback recorded for session ${test.session.id}\nAnonymous user: ${USER_ID}.`,
     })
     expect(feedbackTexts(test.session)).toEqual(['the diff view is unreadable'])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const commandRun = test.session.snapshotEvents().find(event => event.type === 'command/run')
     expect(commandRun?.type === 'command/run' && Object.hasOwn(commandRun.data, 'args')).toBe(false)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(JSON.stringify(test.session.snapshotEvents()).match(/the diff view is unreadable/gu)).toHaveLength(1)
   })
 
   it('exports a command-independent feedback producer', async () => {
     const test = await harness()
     commandFeedback.recordFeedback(test.session, '  recorded outside a command  ')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.session.snapshotEvents().map(event => event.type)).toEqual(['feedback/record'])
     expect(feedbackTexts(test.session)).toEqual(['recorded outside a command'])
     expect(() => { commandFeedback.recordFeedback(test.session, ' \n\t ') })
@@ -129,7 +125,6 @@ describe('/feedback human command', () => {
   it('keeps command bookkeeping around the authoritative feedback event', async () => {
     const test = await harness()
     await run(test, ' nothing else happens')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.session.snapshotEvents().map(event => event.type)).toEqual([
       'command/run', 'feedback/record', 'command/done',
     ])
@@ -166,12 +161,10 @@ describe('/feedback human command', () => {
   it('keeps every recorded event out of model context and derived history', async () => {
     const test = await harness()
     await run(test, ' invisible to the model')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     for (const event of test.session.snapshotEvents()) {
       expect('surfaceOp' in event).toBe(false)
       expect(test.session.deriveEventMessage(event)).toBeNull()
     }
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldSurface(test.session.snapshotEvents()).nodes).toEqual([])
     expect(test.session.surface.nodes).toEqual([])
     expect(test.session.deriveMessages()).toEqual([])
@@ -187,10 +180,8 @@ describe('/feedback human command', () => {
     await expect(run(test, '   \n\t ')).resolves.toEqual(expected)
     expect(getOrCreateAnonymousUserId).not.toHaveBeenCalled()
     expect(feedbackTexts(test.session)).toEqual([])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const done = test.session.snapshotEvents().filter(event => event.type === 'command/done')
     expect(done.map(event => event.data.kind)).toEqual(['error', 'error'])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     for (const event of test.session.snapshotEvents()) {
       if (event.type === 'command/run') expect(Object.hasOwn(event.data, 'args')).toBe(false)
     }
@@ -202,7 +193,6 @@ describe('/feedback human command', () => {
     controller.abort(new Error('user cancelled the command'))
     await expect(test.ctx.commands.execute(test.agent, '/feedback too late', [], controller.signal))
       .rejects.toThrow('user cancelled the command')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.session.snapshotEvents()).toEqual([])
   })
 })
diff --git a/packages/feedback/command-feedback/tests/loader-composition.spec.ts b/packages/feedback/command-feedback/tests/loader-composition.spec.ts
index 6867625302..6ab826e516 100644
--- a/packages/feedback/command-feedback/tests/loader-composition.spec.ts
+++ b/packages/feedback/command-feedback/tests/loader-composition.spec.ts
@@ -102,16 +102,12 @@ describe('/feedback real Loader composition through cordis.yml', () => {
     })
 
     // The domain event owns the payload; generic command bookkeeping omits it.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(owner.session.snapshotEvents().map(event => event.type))
       .toEqual(['command/run', 'feedback/record', 'command/done', 'command/run', 'command/done'])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const run = owner.session.snapshotEvents().find(event => event.type === 'command/run')
     expect(run?.type === 'command/run' && Object.hasOwn(run.data, 'args')).toBe(false)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const feedback = owner.session.snapshotEvents().find(event => event.type === 'feedback/record')
     expect(feedback?.type === 'feedback/record' && feedback.data.text).toBe('the diff view is unreadable')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(JSON.stringify(owner.session.snapshotEvents()).match(/the diff view is unreadable/gu)).toHaveLength(1)
 
     // Nothing reached the model.
diff --git a/packages/feedback/message-feedback/tests/helpers.ts b/packages/feedback/message-feedback/tests/helpers.ts
index 8f3f6c3bb8..b2ac2f1943 100644
--- a/packages/feedback/message-feedback/tests/helpers.ts
+++ b/packages/feedback/message-feedback/tests/helpers.ts
@@ -186,7 +186,6 @@ class TestPersistence extends SessionPersistence {
   }
 
   persist(session: Session): void {
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     this.durable.set(session.id, { meta: session.header, events: [...session.snapshotEvents()] })
   }
 
diff --git a/packages/feedback/message-feedback/tests/message-feedback.spec.ts b/packages/feedback/message-feedback/tests/message-feedback.spec.ts
index 039c0b1388..7a94fefca2 100644
--- a/packages/feedback/message-feedback/tests/message-feedback.spec.ts
+++ b/packages/feedback/message-feedback/tests/message-feedback.spec.ts
@@ -62,7 +62,6 @@ describe('MessageFeedbackService public contract', () => {
     })
 
     const fixture = messageFixture('corrupt-session')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     persistence.setDurable({ meta: fixture.session.header, events: fixture.session.snapshotEvents() })
     const corruption = new Error('stored log checksum mismatch')
     persistence.readFailure = corruption
@@ -415,7 +414,6 @@ describe('MessageFeedbackService item concurrency', () => {
 
     const replacement = Session.create(
       old.session.id,
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       old.session.snapshotEvents(),
       { ...old.session.header, createdAt: 20, cwd: '/new' },
     )
@@ -495,7 +493,6 @@ describe('canonical message feedback history', () => {
     const sessionId = fixture.session.id
     const messageId = fixture.assistantMessageIds[0]
     persistence.persist(fixture.session)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const prefix = fixture.session.snapshotEvents()
     const lifecycle: string[] = []
     ctx.on('session/created', () => { lifecycle.push('created') })
@@ -541,7 +538,6 @@ describe('canonical message feedback history', () => {
     const { ctx, persistence } = await harness()
     const session = ctx.sessions.create(SessionId('live-log'))
     const fixture = appendMessageFixture(session)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const before = session.snapshotEvents().length
     const failure = new Error('disk unavailable')
     let fail = true
@@ -556,9 +552,7 @@ describe('canonical message feedback history', () => {
     const item = listed.value.items[0]!
     fail = false
     expectItem(await ctx.messageFeedback.put({ ...request, ifVersion: item.version }))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(before + 1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(persistence.durable.get(session.id)?.events).toEqual(session.snapshotEvents())
     expect(persistence.openCalls).toEqual(['read'])
   })
@@ -569,7 +563,6 @@ describe('canonical message feedback history', () => {
       const session = ctx.sessions.create(SessionId('mismatched-checkpoint'))
       const fixture = appendMessageFixture(session)
       ctx.on('session/flush', () => {
-        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         const events = [...session.snapshotEvents()]
         if (kind === 'missing-tail') events.pop()
         if (kind === 'different-tail') events[events.length - 1] = { ...events.at(-1)!, time: 0 }
@@ -594,7 +587,6 @@ describe('canonical message feedback history', () => {
     expectItem(await ctx.messageFeedback.put({
       sessionId: session.id, messageId: fixture.assistantMessageIds[0], rating: 'positive', ifVersion: null,
     }))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(persistence.durable.get(session.id)!.events.length).toBe(session.snapshotEvents().length - 1)
   })
 
@@ -632,7 +624,6 @@ describe('canonical message feedback history', () => {
   ])('rejects malformed durable feedback payload %#', async (record) => {
     const { ctx, persistence } = await harness()
     const fixture = messageFixture('invalid-feedback')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = fixture.session.snapshotEvents()
     persistence.setDurable({ meta: fixture.session.header, events: [...events, {
       ...record, seq: SessionSeq(events.length), time: 1,
diff --git a/packages/fs/tool-fs/tests/fs-tools.e2e.ts b/packages/fs/tool-fs/tests/fs-tools.e2e.ts
index 79bddaa090..9e15589025 100644
--- a/packages/fs/tool-fs/tests/fs-tools.e2e.ts
+++ b/packages/fs/tool-fs/tests/fs-tools.e2e.ts
@@ -43,7 +43,6 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('fs tools with-key smoke', () =>
     expect(content).not.toContain('draft')
 
     // The log records real read/write/edit tool calls (not bash).
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const calls = agent.session.snapshotEvents().filter(e => e.type === 'tool/call').map(e => e.data.name)
     expect(calls).toContain('write')
     expect(calls).toContain('read')
diff --git a/packages/fs/tool-present/tests/present.spec.ts b/packages/fs/tool-present/tests/present.spec.ts
index 4c805c2395..95606e09dc 100644
--- a/packages/fs/tool-present/tests/present.spec.ts
+++ b/packages/fs/tool-present/tests/present.spec.ts
@@ -84,7 +84,6 @@ describe('present', () => {
     if (result.isError) throw new Error('present failed')
     const files = (result.value as unknown as { files: PresentedFile[] }).files
     expect(files).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(owner.session.snapshotEvents().find(event => event.type === 'deliverables/presented')?.data.files).toEqual(files)
     expect(files).toEqual([{ path: '报告.docx', description: 'Report' }])
     expect(read).not.toHaveBeenCalled()
@@ -110,7 +109,6 @@ describe('present', () => {
       execute: async () => ({ turn: 1, files: [] }),
     }))
     expect((await execute([])).isError).toBe(false)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(owner.session.snapshotEvents().filter(event => event.type === 'deliverables/presented')).toEqual([])
   })
 
@@ -119,7 +117,6 @@ describe('present', () => {
     await owner.ctx.plugin(Present, { maxFiles: 2 })
     await writeFile(join(root, 'a'), 'a')
     expect((await execute([{ path: 'a' }])).isError).toBe(false)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const deliveries = owner.session.snapshotEvents().filter(event => event.type === 'deliverables/presented')
     expect(deliveries).toHaveLength(1)
     expect(deliveries[0]?.data.files[0]?.path).toBe('a')
@@ -133,7 +130,6 @@ describe('present', () => {
       return { kind: 'block', feedback: [{ type: 'text', text: 'blocked' }] }
     })
     expect((await execute([{ path: 'a' }])).isError).toBe(true)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(owner.session.snapshotEvents().some(event => event.type === 'deliverables/presented')).toBe(false)
   })
 
@@ -145,7 +141,6 @@ describe('present', () => {
       const result = await execute(files)
       expect(result.isError, JSON.stringify(files)).toBe(true)
     }
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(owner.session.snapshotEvents().some(event => event.type === 'deliverables/presented')).toBe(false)
   })
 
diff --git a/packages/goal/command-goal/tests/command-goal.spec.ts b/packages/goal/command-goal/tests/command-goal.spec.ts
index 94f42cdfe8..1c1761cf74 100644
--- a/packages/goal/command-goal/tests/command-goal.spec.ts
+++ b/packages/goal/command-goal/tests/command-goal.spec.ts
@@ -59,19 +59,15 @@ async function harness(): Promise<Harness> {
 /** The log with executor-owned command lifecycle bookkeeping stripped (goal assertions target domain events). */
 function domainEvents(session: Session): readonly SessionEvent[] {
   const lifecycle = new Set<number>()
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   for (const event of session.snapshotEvents()) {
     if (event.type !== 'command/run' && event.type !== 'command/done') continue
     lifecycle.add(event.seq)
     // The zero-step wrap around a lifecycle event is bookkeeping too.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const before = session.snapshotEvents()[event.seq - 1]
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const after = session.snapshotEvents()[event.seq + 1]
     if (before?.type === 'turn/start') lifecycle.add(before.seq)
     if (after?.type === 'turn/end') lifecycle.add(after.seq)
   }
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return session.snapshotEvents().filter(event => !lifecycle.has(event.seq))
 }
 
diff --git a/packages/goal/goal-round-driver/tests/goal-round-driver.spec.ts b/packages/goal/goal-round-driver/tests/goal-round-driver.spec.ts
index 4732334ddc..2ec805d71b 100644
--- a/packages/goal/goal-round-driver/tests/goal-round-driver.spec.ts
+++ b/packages/goal/goal-round-driver/tests/goal-round-driver.spec.ts
@@ -197,7 +197,6 @@ describe('same-session goal driving', () => {
     })
     expect(test.adapter.requests).toHaveLength(2)
     const rounds: number[] = []
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     for (const event of test.agent.session.snapshotEvents()) {
       // Round zero is a durable goal state change; positive rounds are the
       // admitted continuation prompts this test counts.
@@ -208,7 +207,6 @@ describe('same-session goal driving', () => {
     expect(rounds).toEqual([1, 2])
     expect(requestText(test.adapter.requests[0]!)).toContain('Round: 1/2')
     expect(requestText(test.adapter.requests[1]!)).toContain('Round: 2/2')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().flatMap(event =>
       event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial', 'series'])
   })
@@ -264,7 +262,6 @@ describe('same-session goal driving', () => {
       message: 'Goal round was rejected before entering its step.',
     })
     expect(test.adapter.requests).toHaveLength(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().some(event => event.type === 'turn/start')).toBe(true)
   })
 
@@ -302,7 +299,6 @@ describe('same-session goal driving', () => {
     expect(test.adapter.requests).toHaveLength(0)
     // No admitted continuation round reached the model; goal state changes are
     // represented by their own durable event.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().some(event => event.type === 'user/message'
       && event.data.source.kind === 'goal' && event.data.source.round > 0)).toBe(false)
   })
@@ -381,7 +377,6 @@ describe('same-session goal driving', () => {
 
     expect(goal).toMatchObject({ phase: 'paused', roundsStarted: 1 })
     expect(test.adapter.requests).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEndKinds = test.agent.session.snapshotEvents().flatMap(event =>
       event.type === 'turn/end' ? [event.data.reason.kind] : [])
     expect(turnEndKinds).toContain('completed')
@@ -399,7 +394,6 @@ describe('same-session goal driving', () => {
     expect(requestText(test.adapter.requests[0]!)).toContain('human goes first')
     expect(requestText(test.adapter.requests[0]!)).not.toContain('<goal_round>')
     expect(requestText(test.adapter.requests[1]!)).toContain('<goal_round>')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().flatMap(event =>
       event.type === 'request/header' ? [event.data.reason] : [])).toEqual(['initial', 'series'])
   })
@@ -437,7 +431,6 @@ describe('same-session goal driving', () => {
     const goal = await waitForGoal(test.ctx, test.agent, current => current?.phase === 'blocked')
 
     expect(goal).toMatchObject({ revision: 3, objective: 'new objective', roundsStarted: 1 })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const admitted = test.agent.session.snapshotEvents().find(event => event.type === 'user/message'
       && event.data.source.kind === 'goal' && event.data.source.round > 0)
     expect(admitted?.type === 'user/message' && admitted.data.source.kind === 'goal'
@@ -824,7 +817,6 @@ describe('same-session goal driving', () => {
     await test.agent.whenIdle()
 
     expect(test.adapter.requests).toHaveLength(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().some(event => event.type === 'turn/start')).toBe(true)
   })
 
@@ -999,7 +991,6 @@ describe('same-session goal driving', () => {
     })
     handle.agent.followup(createUserMessage({ content: [{ type: 'text', text: 'one ordinary turn' }], source: { kind: 'user' } }))
     await handle.agent.whenIdle()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const closed = handle.agent.session.snapshotEvents().findLast(event => event.type === 'turn/end')
     if (closed?.type !== 'turn/end') throw new Error('expected a closed turn')
     await handle.dispose()
@@ -1105,7 +1096,6 @@ describe('same-session goal driving', () => {
 
     expect(test.ctx.goals.get(test.agent)).toMatchObject({ phase: 'active', roundsStarted: 0 })
     expect(test.adapter.requests).toHaveLength(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().some(event => event.type === 'turn/start')).toBe(true)
   })
 
diff --git a/packages/goal/goal/tests/goal.spec.ts b/packages/goal/goal/tests/goal.spec.ts
index 7281859055..ac32cd3765 100644
--- a/packages/goal/goal/tests/goal.spec.ts
+++ b/packages/goal/goal/tests/goal.spec.ts
@@ -27,7 +27,6 @@ const sessionStubs = new WeakMap<Session, StubAgent>()
 
 /** Number the next balanced test-fixture turn. */
 function nextTurn(session: Session): number {
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return session.snapshotEvents().reduce((max, event) => event.type === 'turn/start' ? Math.max(max, event.data.turn) : max, 0) + 1
 }
 
@@ -132,9 +131,7 @@ describe('GoalService creation and replay', () => {
     })
     expect(goal.id).toMatch(/^goal-/)
     expect(seen).toEqual(['create'])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().map(event => event.type)).toEqual(['goal/change'])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const context = session.snapshotEvents()[0]
     expect(context?.type).toBe('goal/change')
     if (context?.type !== 'goal/change') throw new Error('expected durable goal change')
@@ -143,7 +140,6 @@ describe('GoalService creation and replay', () => {
     expect(change).toMatchObject({ operation: 'create', goal: { id: goal.id } })
     expect(agent.inbox.nextStep).toEqual([])
     expect(session.deriveMessages()).toEqual([])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldGoal(session.snapshotEvents())).toMatchObject({ goal: { id: goal.id }, roundsStarted: 0 })
     vi.useRealTimers()
   })
@@ -196,7 +192,6 @@ describe('GoalService creation and replay', () => {
     await ctx.plugin(AgentRegistry)
     await ctx.plugin(SessionProjectionRegistry)
     await ctx.plugin(GoalService)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const resumed = stubAgent('seeded-goal', first.session.snapshotEvents())
     ctx.agents.register(resumed.agent)
     expect(ctx.goals.get(resumed.agent)).toMatchObject({
@@ -245,14 +240,12 @@ describe('GoalService creation and replay', () => {
     expect(activations.map(entry => entry.activation)).toEqual(['armed', 'disarmed', 'armed'])
     expect(activations.map(entry => entry.id)).toEqual([goal.id, goal.id, goal.id])
     expect(activations.map(entry => entry.revision)).toEqual([1, 1, 2])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(() => foldGoal(session.snapshotEvents())).not.toThrow()
   })
 
   it('lets a lifecycle owner disarm without writing a durable revision', async () => {
     const { ctx, agent, session } = await harness()
     const goal = ctx.goals.create(agent, { objective: 'survive driver reload' })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const before = session.snapshotEvents().length
     expect(ctx.goals.disarm(agent)).toMatchObject({
       id: goal.id,
@@ -260,7 +253,6 @@ describe('GoalService creation and replay', () => {
       phase: 'active',
       activation: 'disarmed',
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(before)
     expect(ctx.goals.resume(agent, goal)).toMatchObject({ revision: 2, activation: 'armed' })
   })
@@ -424,7 +416,6 @@ describe('GoalService mutations', () => {
     const tombstone = ctx.goals.clear(agent, goal)
     expect(tombstone).toEqual({ id: goal.id, revision: 2 })
     expect(ctx.goals.get(agent)).toBeUndefined()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldGoal(session.snapshotEvents())).toEqual({ roundsStarted: 0, lastRef: tombstone })
     expect(() => ctx.goals.clear(agent, goal)).toThrow(expect.objectContaining({ code: 'GOAL_NOT_FOUND' }))
     const next = ctx.goals.create(agent, { objective: 'fresh' })
@@ -441,13 +432,11 @@ describe('GoalService mutations', () => {
     expect(goal.updatedAt).toBe(100)
     vi.setSystemTime(80)
     ctx.goals.clear(agent, goal)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const clear = session.snapshotEvents()
       .filter(event => event.type === 'goal/change')
       .map(event => event.type === 'goal/change' ? decodeGoalChange(event.data) : undefined)
       .at(-1)
     expect(clear).toMatchObject({ operation: 'clear', clearedAt: 100 })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(() => foldGoal(session.snapshotEvents())).not.toThrow()
     vi.useRealTimers()
   })
@@ -469,12 +458,10 @@ describe('GoalService mutations', () => {
     goal = ctx.goals.edit(agent, goal, { objective: 'deferred edit' })
     goal = ctx.goals.pause(agent, goal)
     expect(goal).toMatchObject({ revision: 3, phase: 'paused', activation: 'disarmed' })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().map(event => event.type)).toEqual([
       'goal/change', 'goal/change', 'goal/change',
     ])
     expect(ctx.goals.get(agent)).toMatchObject({ revision: 3, phase: 'paused' })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldGoal(session.snapshotEvents())).toMatchObject({ goal: { revision: 3, phase: 'paused' } })
   })
 
@@ -495,7 +482,6 @@ describe('GoalService mutations', () => {
 
     expect(observed).toEqual(created)
     expect(ctx.goals.get(stub.agent)).toEqual(created)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldGoal(stub.session.snapshotEvents())).toMatchObject({ goal: { id: created.id, revision: 1 } })
   })
 
@@ -513,7 +499,6 @@ describe('GoalService mutations', () => {
       revision: 1,
     })
     expect(stub.agent.inbox.nextStep).toEqual([])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(stub.session.snapshotEvents().map(event => event.type)).toEqual(['goal/change'])
   })
 
@@ -599,7 +584,6 @@ describe('goal replay validation', () => {
   function oneChange(change: GoalChangeMeta) {
     const session = Session.create(SessionId(`validation-${Math.random()}`))
     appendChange(session, change)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     return session.snapshotEvents()
   }
 
@@ -631,7 +615,6 @@ describe('goal replay validation', () => {
     const change = snapshotChange()
     const session = Session.create(SessionId('inbox-independent-change'))
     appendChange(session, change)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldGoal(session.snapshotEvents())).toMatchObject({ goal: { id: change.goal.id, revision: 1 } })
     const message = createUserMessage({
       content: [{ type: 'text', text: 'unrelated pending context' }],
@@ -640,7 +623,6 @@ describe('goal replay validation', () => {
     const inbox = stubAgentForSession(session).agent.inbox
     inbox.append('next-step', message)
     expect(inbox.remove(message.id)).toBe(true)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldGoal(session.snapshotEvents())).toMatchObject({ goal: { id: change.goal.id, revision: 1 } })
   })
 
@@ -648,7 +630,6 @@ describe('goal replay validation', () => {
     const session = Session.create(SessionId(`validation-pair-${Math.random()}`))
     appendChange(session, first)
     appendChange(session, second)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     return foldGoal(session.snapshotEvents())
   }
 
@@ -660,7 +641,6 @@ describe('goal replay validation', () => {
       content: [{ type: 'text', text: 'other' }],
       source: { kind: 'plugin', plugin: 'test' },
     }))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldGoal(session.snapshotEvents())).toEqual({ roundsStarted: 0 })
     const source = { kind: 'plugin', plugin: 'ordinary-user-message' } as const
     const turn = nextTurn(session)
@@ -669,7 +649,6 @@ describe('goal replay validation', () => {
       content: [{ type: 'text', text: 'ordinary' }], source,
     }), { surfaceOp: 'append' })
     session.append('turn/end', { turn, reason: { kind: 'completed' } })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldGoal(session.snapshotEvents())).toEqual({ roundsStarted: 0 })
   })
 
@@ -677,7 +656,6 @@ describe('goal replay validation', () => {
     const change = snapshotChange()
     const session = Session.create(SessionId('other-goal-round'), oneChange(change))
     appendRound(session, { id: GoalId('goal-other'), revision: 1 }, 1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(() => foldGoal(session.snapshotEvents())).toThrow('not the next admitted round')
   })
 
@@ -754,7 +732,6 @@ describe('goal replay validation', () => {
     appendRound(session, base.goal, 2)
     appendChange(session, { ...paused, roundsStarted: 2 })
     appendChange(session, exhausted)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(() => foldGoal(session.snapshotEvents())).toThrow('exhausted round budget')
   })
 
@@ -779,7 +756,6 @@ describe('goal replay validation', () => {
     appendChange(completedSession, base)
     appendChange(completedSession, complete)
     appendChange(completedSession, sameCurrentId)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(() => foldGoal(completedSession.snapshotEvents())).toThrow('fresh active revision-one')
 
     const second = snapshotChange({
@@ -794,7 +770,6 @@ describe('goal replay validation', () => {
     appendChange(nonAdjacentReuse, second)
     appendChange(nonAdjacentReuse, secondComplete)
     appendChange(nonAdjacentReuse, { ...sameCurrentId, createdAt: 30, updatedAt: 30 })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(() => foldGoal(nonAdjacentReuse.snapshotEvents())).toThrow('fresh active revision-one')
 
     const clear: GoalChangeMeta = {
@@ -804,7 +779,6 @@ describe('goal replay validation', () => {
     appendChange(clearedSession, base)
     appendChange(clearedSession, clear)
     appendChange(clearedSession, sameCurrentId)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(() => foldGoal(clearedSession.snapshotEvents())).toThrow('fresh active revision-one')
   })
 
@@ -817,7 +791,6 @@ describe('goal replay validation', () => {
       content: [{ type: 'text', text: 'missing' }], source,
     }), { surfaceOp: 'append' })
     session.append('turn/end', { turn, reason: { kind: 'completed' } })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(() => foldGoal(session.snapshotEvents())).toThrow('goal message source is invalid')
   })
 
@@ -865,7 +838,6 @@ describe('goal replay validation', () => {
       clearedAt: 20,
     }
     appendChange(session, clear)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldGoal(session.snapshotEvents())).toEqual({
       roundsStarted: 0,
       lastRef: { id: change.goal.id, revision: 2 },
diff --git a/packages/goal/goal/tests/projection.spec.ts b/packages/goal/goal/tests/projection.spec.ts
index 77c2e23818..45cd1ddb37 100644
--- a/packages/goal/goal/tests/projection.spec.ts
+++ b/packages/goal/goal/tests/projection.spec.ts
@@ -137,7 +137,6 @@ describe('goal projection unit', () => {
     })
 
     expect(bench.tailValues().goal).toBeNull()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldGoal(bench.session.snapshotEvents()).goal).toBeUndefined()
   })
 
diff --git a/packages/goal/tool-goal/tests/tool-goal.spec.ts b/packages/goal/tool-goal/tests/tool-goal.spec.ts
index 00b2feabe2..b4b4d54808 100644
--- a/packages/goal/tool-goal/tests/tool-goal.spec.ts
+++ b/packages/goal/tool-goal/tests/tool-goal.spec.ts
@@ -68,7 +68,6 @@ function stubAgent(rawId: string, supplied?: Session, suppliedCtx?: Context): St
 
 /** Open one message-triggered turn with its accepted model-visible input. */
 function openTurn(stub: StubAgent, source: MessageSource, text = 'prompt'): number {
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   const turn = stub.session.snapshotEvents()
     .filter(event => event.type === 'turn/start')
     .reduce((max, event) => Math.max(max, event.data.turn), 0) + 1
@@ -283,7 +282,6 @@ describe('goal tool execution authority', () => {
     const created = ctx.goals.create(root.agent, { objective: 'resume the fork' })
     closeTurn(root, originalTurn)
     const forkId = SessionId('goal-tool-resumed-fork')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const forkSession = Session.create(forkId, root.session.snapshotEvents(), {
       version: SESSION_FORMAT_VERSION,
       id: forkId,
diff --git a/packages/guard/repeat-tool-reminder/tests/repeat-tool-reminder.spec.ts b/packages/guard/repeat-tool-reminder/tests/repeat-tool-reminder.spec.ts
index e83b99d1ec..4c505d6cf0 100644
--- a/packages/guard/repeat-tool-reminder/tests/repeat-tool-reminder.spec.ts
+++ b/packages/guard/repeat-tool-reminder/tests/repeat-tool-reminder.spec.ts
@@ -37,7 +37,6 @@ function waitForIdle(ctx: Context, agent: Agent): Promise<void> {
 
 /** Every injected-context user message in the agent's log, flattened to joined text + source for terse assertions. */
 function reminders(agent: Agent): { text: string; source: unknown }[] {
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return agent.session.snapshotEvents()
     .filter((e): e is SessionEvent<'user/message'> => e.type === 'user/message' && e.data.source.kind !== 'user')
     .map(e => ({
@@ -338,7 +337,6 @@ describe('fold onto the downstream decision', () => {
     expect(found[1]!.source).toEqual(guardSource('probe', 2))
     expect(found[2]).toEqual({ text: 'downstream-ctx', source: { kind: 'plugin', plugin: 'test' } })
     // The block's feedback reached the tool result unchanged.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const results = agent.session.snapshotEvents().filter((e): e is SessionEvent<'tool/result'> => e.type === 'tool/result')
     expect(results.every(r => r.data.message.content[0].isError)).toBe(true)
     expect(results[1]!.data.message.content[0].content).toEqual([{ type: 'text', text: 'nope' }])
@@ -363,7 +361,6 @@ describe('fold onto the downstream decision', () => {
     const found = reminders(agent)
     expect(found).toHaveLength(1)
     expect(found[0]!.text).toContain('repeating the exact same tool call')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const results = agent.session.snapshotEvents().filter((e): e is SessionEvent<'tool/result'> => e.type === 'tool/result')
     expect(results[1]!.data.message.content[0].content).toEqual([{ type: 'text', text: 'replaced' }])
   })
diff --git a/packages/hooks/hook-protocol/tests/events.spec.ts b/packages/hooks/hook-protocol/tests/events.spec.ts
index 5da0f91911..45aeca1050 100644
--- a/packages/hooks/hook-protocol/tests/events.spec.ts
+++ b/packages/hooks/hook-protocol/tests/events.spec.ts
@@ -12,7 +12,6 @@ describe('hook/* session events', () => {
     const session = Session.create(SessionId('s'))
     appendHookInvoked(session, { turn: 1, point: 'PreToolUse', dialect: 'claude-code', handlerId: 'h1', matcher: 'Bash' })
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const ev = session.snapshotEvents().find(e => e.type === 'hook/invoked')
     expect(ev?.type).toBe('hook/invoked')
     if (ev?.type === 'hook/invoked') {
@@ -26,7 +25,6 @@ describe('hook/* session events', () => {
     const session = Session.create(SessionId('s'))
     appendHookInvoked(session, { turn: 2, point: 'Stop', dialect: 'codex', handlerId: 'h2' })
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const ev = session.snapshotEvents().find(e => e.type === 'hook/invoked')
     if (ev?.type === 'hook/invoked') {
       expect('matcher' in ev.data).toBe(false)
@@ -39,7 +37,6 @@ describe('hook/* session events', () => {
       turn: 1, point: 'PreToolUse', handlerId: 'h1',
       stderrSummaryMaxChars: 500, durationMs: 5, output: output({ exitCode: 2, stderr: 'blocked', decision: 'deny' }),
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const full = session.snapshotEvents().find(e => e.type === 'hook/result')
     if (full?.type === 'hook/result') {
       expect(full.data).toEqual({ turn: 1, point: 'PreToolUse', handlerId: 'h1', decision: 'deny', exitCode: 2, stderrSummary: 'blocked', durationMs: 5 })
@@ -51,7 +48,6 @@ describe('hook/* session events', () => {
       turn: 1, point: 'Stop', handlerId: 'h3',
       stderrSummaryMaxChars: 500, durationMs: 5, output: output({ exitCode: undefined, decision: 'allow' }),
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const sparse = session2.snapshotEvents().find(e => e.type === 'hook/result')
     if (sparse?.type === 'hook/result') {
       expect('exitCode' in sparse.data).toBe(false)
@@ -67,7 +63,6 @@ describe('hook/* session events', () => {
     // An explicit decision wins over the continue:false fallback.
     appendHookResult(session, { turn: 1, point: 'Stop', handlerId: 'both', stderrSummaryMaxChars: 500, durationMs: 5, output: output({ continue: false, decision: 'block' }) })
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const decisions = session.snapshotEvents()
       .filter(e => e.type === 'hook/result')
       .map(e => e.type === 'hook/result' ? [e.data.handlerId, e.data.decision] : [])
@@ -80,7 +75,6 @@ describe('hook/* session events', () => {
       turn: 1, point: 'PreToolUse', handlerId: 'long',
       stderrSummaryMaxChars: 500, durationMs: 5, output: output({ exitCode: 2, stderr: `  ${'x'.repeat(600)}  ` }),
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const ev = session.snapshotEvents().find(e => e.type === 'hook/result')
     if (ev?.type === 'hook/result') {
       expect(ev.data.stderrSummary).toBe('x'.repeat(500) + '…')
@@ -93,7 +87,6 @@ describe('hook/* session events', () => {
       turn: 1, point: 'PreToolUse', handlerId: 'edge',
       stderrSummaryMaxChars: 500, durationMs: 5, output: output({ exitCode: 2, stderr: 'y'.repeat(500) }),
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const ev = session.snapshotEvents().find(e => e.type === 'hook/result')
     if (ev?.type === 'hook/result') {
       expect(ev.data.stderrSummary).toBe('y'.repeat(500))
@@ -105,9 +98,7 @@ describe('hook/* session events', () => {
     appendHookInvoked(session, { turn: 1, point: 'PreToolUse', dialect: 'claude-code', handlerId: 'pair-1' })
     appendHookResult(session, { turn: 1, point: 'PreToolUse', handlerId: 'pair-1', stderrSummaryMaxChars: 500, durationMs: 5, output: output({ decision: 'allow' }) })
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const invoked = session.snapshotEvents().find(e => e.type === 'hook/invoked')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const result = session.snapshotEvents().find(e => e.type === 'hook/result')
     expect(invoked?.type === 'hook/invoked' && invoked.data.handlerId).toBe('pair-1')
     expect(result?.type === 'hook/result' && result.data.handlerId).toBe('pair-1')
diff --git a/packages/hooks/hooks-claude-code/tests/bridge.spec.ts b/packages/hooks/hooks-claude-code/tests/bridge.spec.ts
index ec6a9c2453..68f6c8319d 100644
--- a/packages/hooks/hooks-claude-code/tests/bridge.spec.ts
+++ b/packages/hooks/hooks-claude-code/tests/bridge.spec.ts
@@ -71,7 +71,6 @@ function waitForIdle(_ctx: Context, agent: Agent): Promise<void> {
 }
 
 function events(agent: Agent): readonly SessionEvent[] {
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return agent.session.snapshotEvents()
 }
 
diff --git a/packages/hooks/hooks-claude-code/tests/coverage-cases.ts b/packages/hooks/hooks-claude-code/tests/coverage-cases.ts
index 1edfcb2500..8627a970cd 100644
--- a/packages/hooks/hooks-claude-code/tests/coverage-cases.ts
+++ b/packages/hooks/hooks-claude-code/tests/coverage-cases.ts
@@ -52,7 +52,6 @@ async function harness(configPath: string, adapter: MockAdapter, opts: HarnessOp
 function waitForIdle(_ctx: Context, agent: Agent): Promise<void> {
   return agent.whenIdle()
 }
-// oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
 function events(agent: Agent): readonly SessionEvent[] { return agent.session.snapshotEvents() }
 /** Poll until `predicate` holds or the deadline passes — robust to detached
  * emit-listener hooks firing on a `.then` (a fixed sleep flakes under load). */
diff --git a/packages/hooks/hooks-codex/tests/bridge.spec.ts b/packages/hooks/hooks-codex/tests/bridge.spec.ts
index 2ffb062a0c..1ef87de7c1 100644
--- a/packages/hooks/hooks-codex/tests/bridge.spec.ts
+++ b/packages/hooks/hooks-codex/tests/bridge.spec.ts
@@ -54,7 +54,6 @@ async function harness(dir: string, adapter: MockAdapter, beforeHooks?: (ctx: Co
 function waitForIdle(_ctx: Context, agent: Agent): Promise<void> {
   return agent.whenIdle()
 }
-// oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
 function events(agent: Agent): readonly SessionEvent[] { return agent.session.snapshotEvents() }
 
 /** Poll `predicate` until true or the deadline passes (detached hook effects can't be awaited directly). */
diff --git a/packages/hooks/hooks-codex/tests/coverage-cases.ts b/packages/hooks/hooks-codex/tests/coverage-cases.ts
index 91956f33a5..12a3c370ab 100644
--- a/packages/hooks/hooks-codex/tests/coverage-cases.ts
+++ b/packages/hooks/hooks-codex/tests/coverage-cases.ts
@@ -42,7 +42,6 @@ async function harness(configPath: string, adapter: MockAdapter, opts: HarnessOp
 function waitForIdle(_ctx: Context, agent: Agent): Promise<void> {
   return agent.whenIdle()
 }
-// oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
 function events(agent: Agent): readonly SessionEvent[] { return agent.session.snapshotEvents() }
 /** Poll until `predicate` holds or the deadline passes — robust to detached
  * emit-listener hooks firing on a `.then` (a fixed sleep flakes under load). */
diff --git a/packages/interaction/commands/tests/commands.spec.ts b/packages/interaction/commands/tests/commands.spec.ts
index aef91060c8..92a12d921d 100644
--- a/packages/interaction/commands/tests/commands.spec.ts
+++ b/packages/interaction/commands/tests/commands.spec.ts
@@ -33,7 +33,6 @@ async function mintAgentScope(ctx: Context, name: string): Promise<{ scope: Scop
 
 /** The lifecycle slice of one agent's log (boundary markers stripped). */
 function lifecycleOf(agent: Agent): Array<{ type: string; data: unknown }> {
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return agent.session.snapshotEvents()
     .filter(event => event.type === 'command/run' || event.type === 'command/done')
     .map(event => ({ type: event.type, data: event.data }))
@@ -317,7 +316,6 @@ describe('CommandRuntime', () => {
     // The execution's pairing id is the logged one (RPC-level correlation).
     expect(execution?.commandId).toBe(ids[0])
     // Direct log-only appends: no turn is opened for the pair on an idle log.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().map(event => event.type)).toEqual([
       'command/run', 'command/done',
     ])
@@ -356,7 +354,6 @@ describe('CommandRuntime', () => {
     await ctx.commands.execute(agent, '/private keep this once', [], new AbortController().signal)
 
     expect(seen).toHaveBeenCalledWith(expect.objectContaining({ rawInput: ' keep this once' }))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const run = agent.session.snapshotEvents().find(event => event.type === 'command/run')
     expect(run?.type).toBe('command/run')
     expect(run?.type === 'command/run' && Object.hasOwn(run.data, 'args')).toBe(false)
@@ -431,7 +428,6 @@ describe('CommandRuntime', () => {
     const signal = new AbortController().signal
     await ctx.commands.execute(agent, 'not a command', [], signal)
     await ctx.commands.execute(agent, '/missing', [], signal)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents()).toEqual([])
   })
 
@@ -441,7 +437,6 @@ describe('CommandRuntime', () => {
     ctx.commands.register(command('mid'))
     agent.session.append('turn/start', { turn: 1 })
     await ctx.commands.execute(agent, '/mid', [], new AbortController().signal)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().map(event => event.type)).toEqual([
       'turn/start', 'command/run', 'command/done',
     ])
diff --git a/packages/interaction/permission-presets/tests/permission-presets.spec.ts b/packages/interaction/permission-presets/tests/permission-presets.spec.ts
index 552373474f..3da5749e2b 100644
--- a/packages/interaction/permission-presets/tests/permission-presets.spec.ts
+++ b/packages/interaction/permission-presets/tests/permission-presets.spec.ts
@@ -151,7 +151,6 @@ describe('PermissionPresetService', () => {
     const ctx = await mounted()
     const session = freshSession('sess-set')
     ctx.permissionPresets.set(session, 'danger-full-access')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().map(e => [e.type, e.data])).toEqual([
       ['permission/preset', { preset: 'danger-full-access' }],
       ['sandbox/mode', { mode: 'danger-full-access' }],
@@ -163,7 +162,6 @@ describe('PermissionPresetService', () => {
     const ctx = await mounted()
     const session = freshSession('sess-noop')
     ctx.permissionPresets.set(session, 'workspace-write')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(0)
   })
 
@@ -175,7 +173,6 @@ describe('PermissionPresetService', () => {
     // the changed knob.
     session.append('sandbox/mode', { mode: 'read-only' })
     ctx.permissionPresets.set(session, 'danger-full-access')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const tail = session.snapshotEvents().slice(4)
     expect(tail.map(e => [e.type, e.data])).toEqual([
       ['permission/preset', { preset: 'danger-full-access' }],
@@ -211,7 +208,6 @@ describe('PermissionPresetService', () => {
     const ctx = await mounted({ approvalDefault: undefined })
     const session = freshSession('sess-standin')
     ctx.permissionPresets.set(session, 'workspace-write')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(0)
     expect(ctx.permissionPresets.current(session)).toBe('workspace-write')
   })
@@ -221,7 +217,6 @@ describe('new-session default', () => {
   it('pins the current setting into each new session without changing earlier sessions', async () => {
     const ctx = await mountedStore()
     const first = ctx.sessions.create(SessionId('first'))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(first.snapshotEvents().map(event => [event.type, event.data])).toEqual([
       ['permission/preset', { preset: 'workspace-write' }],
       ['sandbox/mode', { mode: 'workspace-write' }],
@@ -235,7 +230,6 @@ describe('new-session default', () => {
     const second = ctx.sessions.create(SessionId('second'))
     expect(ctx.permissionPresets.current(first)).toBe('workspace-write')
     expect(ctx.permissionPresets.current(second)).toBe('danger-full-access')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(second.snapshotEvents().map(event => event.type)).toEqual([
       'permission/preset', 'sandbox/mode', 'approval/policy',
     ])
@@ -249,10 +243,8 @@ describe('new-session default', () => {
     const legacy = freshSession('legacy-source')
     legacy.append('turn/start', { turn: 1 })
     legacy.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const resumed = ctx.sessions.create(SessionId('legacy-resumed'), { seed: legacy.snapshotEvents() })
     expect(ctx.permissionPresets.current(resumed)).toBe('workspace-write')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(resumed.snapshotEvents().slice(-3).map(event => event.type)).toEqual([
       'permission/preset', 'sandbox/mode', 'approval/policy',
     ])
@@ -265,7 +257,6 @@ describe('new-session default', () => {
     })
     const resumed = ctx.sessions.create(SessionId('empty-resumed'), { seed: [] })
     expect(ctx.permissionPresets.current(resumed)).toBe('workspace-write')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(resumed.snapshotEvents().map(event => event.type)).toEqual([
       'session/end-seed', 'permission/preset', 'sandbox/mode', 'approval/policy',
     ])
@@ -283,11 +274,9 @@ describe('new-session default', () => {
     })
     ctx.provide('approval', { config: { policy: 'ask' } })
     const existing = ctx.sessions.create(SessionId('existing-before-permission'))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(existing.snapshotEvents()).toEqual([])
 
     await ctx.plugin(PermissionPresetService, {})
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(existing.snapshotEvents().map(event => event.type)).toEqual([
       'permission/preset', 'sandbox/mode', 'approval/policy',
     ])
@@ -313,7 +302,6 @@ describe('new-session default', () => {
     // The remount sweep must read the folded knob events instead of treating
     // the session as fresh; no default preset events may overwrite the
     // overrides (read-only + never matches no preset table entry).
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(existing.snapshotEvents().map(event => event.type)).toEqual([
       'sandbox/mode', 'approval/policy',
     ])
@@ -325,9 +313,7 @@ describe('new-session default', () => {
     const partial = freshSession('partial-source')
     partial.append('sandbox/mode', { mode: 'workspace-write' })
     partial.append('approval/policy', { policy: 'ask' })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const resumed = ctx.sessions.create(SessionId('partial-resumed'), { seed: partial.snapshotEvents() })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(resumed.snapshotEvents().at(-1)).toMatchObject({
       type: 'permission/preset',
       data: { preset: 'workspace-write' },
@@ -336,10 +322,8 @@ describe('new-session default', () => {
     const custom = freshSession('custom-source')
     custom.append('sandbox/mode', { mode: 'read-only' })
     custom.append('approval/policy', { policy: 'never' })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const unmatched = ctx.sessions.create(SessionId('custom-resumed'), { seed: custom.snapshotEvents() })
     expect(ctx.permissionPresets.current(unmatched)).toBe(CUSTOM_PRESET)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(unmatched.snapshotEvents().at(-1)?.type).toBe('session/end-seed')
   })
 
@@ -347,9 +331,7 @@ describe('new-session default', () => {
     const ctx = await mountedStore({ approvalDefault: undefined })
     const partial = freshSession('approval-fallback-source')
     partial.append('sandbox/mode', { mode: 'workspace-write' })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const resumed = ctx.sessions.create(SessionId('approval-fallback-resumed'), { seed: partial.snapshotEvents() })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(resumed.snapshotEvents().at(-1)).toMatchObject({
       type: 'approval/policy',
       data: { policy: 'ask' },
diff --git a/packages/interaction/permission-presets/tests/projection.spec.ts b/packages/interaction/permission-presets/tests/projection.spec.ts
index 9a7ef5d0d3..53022e9089 100644
--- a/packages/interaction/permission-presets/tests/projection.spec.ts
+++ b/packages/interaction/permission-presets/tests/projection.spec.ts
@@ -99,7 +99,6 @@ describe('/permission command', () => {
         text: 'The approval policy changed from "ask" to "never" (changed by the user).',
       }],
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const run = session.snapshotEvents().find(event => event.type === 'command/run')
     expect(run?.data).toMatchObject({ name: 'permission', args: ' danger-full-access' })
   })
@@ -112,14 +111,12 @@ describe('/permission command', () => {
       kind: 'success',
       text: 'current preset workspace-write (available: workspace-write, danger-full-access)',
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event => event.type === 'permission/preset')).toHaveLength(1)
   })
 
   it('rejects an unknown preset without touching the log', async () => {
     const { ctx, session } = await harness()
     const { agent } = await agentFor(ctx, session)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const before = session.snapshotEvents().filter(event =>
       event.type !== 'command/run' && event.type !== 'command/done')
     const execution = await ctx.commands.execute(agent, '/permission yolo', [], new AbortController().signal)
@@ -130,7 +127,6 @@ describe('/permission command', () => {
       kind: 'error',
       text: 'unknown preset "yolo" (available: workspace-write, danger-full-access)',
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event =>
       event.type !== 'command/run' && event.type !== 'command/done')).toEqual(before)
   })
diff --git a/packages/interaction/user-approval/tests/approval.spec.ts b/packages/interaction/user-approval/tests/approval.spec.ts
index c0fce76425..70e1abcf4e 100644
--- a/packages/interaction/user-approval/tests/approval.spec.ts
+++ b/packages/interaction/user-approval/tests/approval.spec.ts
@@ -132,11 +132,8 @@ describe('ApprovalService.request', () => {
 
     await expect(ctx.approval.request(requestOf(agent))).resolves.toBe('allowed-once')
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const audit = session.snapshotEvents().filter(event => event.type.startsWith('approval/'))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const asked = session.snapshotEvents().find((event): event is SessionEvent<'approval/asked'> => event.type === 'approval/asked')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const decided = session.snapshotEvents().find((event): event is SessionEvent<'approval/decided'> => event.type === 'approval/decided')
     expect(audit.map(event => event.type)).toEqual(['approval/asked', 'approval/decided'])
     expect(decided?.data.id).toBe(asked?.data.id)
@@ -158,11 +155,8 @@ describe('ApprovalService.request', () => {
 
     await expect(ctx.approval.request(requestOf(agent))).resolves.toBe('rejected')
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const audit = session.snapshotEvents().filter(event => event.type.startsWith('approval/'))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const asked = session.snapshotEvents().find((event): event is SessionEvent<'approval/asked'> => event.type === 'approval/asked')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const decided = session.snapshotEvents().find((event): event is SessionEvent<'approval/decided'> => event.type === 'approval/decided')
     expect(audit.map(event => event.type)).toEqual(['approval/asked', 'approval/decided'])
     expect(decided?.data).toMatchObject({ id: asked?.data.id, outcome: 'rejected' })
@@ -382,7 +376,6 @@ describe('approval policy (the approval/policy fold)', () => {
     setApprovalPolicy(session, 'never')
     setApprovalPolicy(session, 'ask')
     expect(service.overrideOf(session)).toBe('ask')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().at(-1)).toMatchObject({ type: 'approval/policy', data: { policy: 'ask' } })
   })
 
@@ -422,9 +415,7 @@ describe('approval policy (the approval/policy fold)', () => {
     await expect(ctx.approval.request({ agent, toolName: 'bash' })).resolves.toBe('rejected')
     expect(consulted).not.toHaveBeenCalled()
     // The audit pair still lands on the session log.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(e => e.type === 'approval/asked')).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(e => e.type === 'approval/decided')).toHaveLength(1)
   })
 
diff --git a/packages/llm/llm-retry/tests/loader-composition.spec.ts b/packages/llm/llm-retry/tests/loader-composition.spec.ts
index 7b95f6982d..5c5a177040 100644
--- a/packages/llm/llm-retry/tests/loader-composition.spec.ts
+++ b/packages/llm/llm-retry/tests/loader-composition.spec.ts
@@ -112,7 +112,6 @@ describe('real Loader composition', () => {
     await agent.whenIdle()
 
     expect(adapter.requests).toBe(2)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'llm/retry')).toHaveLength(1)
     expect(agent.session.deriveMessages().at(-1)).toMatchObject({
       role: 'assistant',
diff --git a/packages/llm/llm-retry/tests/retry.spec.ts b/packages/llm/llm-retry/tests/retry.spec.ts
index cf61fcd4fa..e7f0ededb2 100644
--- a/packages/llm/llm-retry/tests/retry.spec.ts
+++ b/packages/llm/llm-retry/tests/retry.spec.ts
@@ -215,7 +215,6 @@ describe('provider-routed retry policy', () => {
     await idle
 
     expect(adapter.requests).toHaveLength(2)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(item => item.type === 'step/start').map(item => item.data))
       .toEqual([{ turn: 1, step: 1 }])
     expect(agent.session.deriveMessages().at(-1)).toEqual({
@@ -251,7 +250,6 @@ describe('provider-routed retry policy', () => {
     await idle
 
     expect(adapter.requests).toHaveLength(2)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'assistant/message').map(event => ({
       turn: event.data.turn,
       step: event.data.step,
@@ -288,9 +286,7 @@ describe('provider-routed retry policy', () => {
     await vi.advanceTimersByTimeAsync(500)
     await idle
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const retryEvent = agent.session.snapshotEvents().find(event => event.type === 'llm/retry')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const failedAttempts = agent.session.snapshotEvents().filter((event): event is SessionEvent<'assistant/attempt'> =>
       event.type === 'assistant/attempt'
       && retryEvent !== undefined
@@ -298,14 +294,12 @@ describe('provider-routed retry policy', () => {
     )
     expect(failedAttempts).toHaveLength(1)
     expect(expandAssistantStream(failedAttempts[0]!.data.stream)).toHaveLength(7)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const assistantMessages = agent.session.snapshotEvents().filter(event => event.type === 'assistant/message')
     expect(assistantMessages.map(event => ({
       turn: event.data.turn,
       step: event.data.step,
     }))).toEqual([{ turn: 1, step: 1 }])
     expect(assistantMessages[0]?.sourceEventSeqs).toBeUndefined()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'tool/call')).toBe(false)
     expect(toolExecutions).toBe(0)
     expect(agent.session.deriveMessages().at(-1)).toMatchObject({
@@ -343,9 +337,7 @@ describe('provider-routed retry policy', () => {
     await idle
 
     expect(adapter.requests).toHaveLength(3)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'llm/retry')).toHaveLength(2)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
       type: 'turn/end',
       data: { reason: { kind: 'error', error: { message: 'busy three', code: 'SERVER' } } },
@@ -401,7 +393,6 @@ describe('provider-routed retry policy', () => {
     rejectedAgent.followup(createUserMessage({ content: [{ type: 'text', text: 'go' }], source: { kind: 'user' } }))
     await rejectedIdle
     expect(rejected.requests).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(rejectedAgent.session.snapshotEvents().some(event => event.type === 'llm/retry')).toBe(false)
   })
 
@@ -440,7 +431,6 @@ describe('provider-routed retry policy', () => {
     agent.followup(createUserMessage({ content: [{ type: 'text', text: 'go' }], source: { kind: 'user' } }))
     await idle
     expect(adapter.requests).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'llm/retry')).toBe(false)
     expect(vi.getTimerCount()).toBe(0)
   })
@@ -460,9 +450,7 @@ describe('provider-routed retry policy', () => {
     await idle
 
     expect(adapter.requests).toHaveLength(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'llm/retry')).toBe(false)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = agent.session.snapshotEvents().at(-1)
     expect(end).toMatchObject({
       type: 'turn/end',
@@ -491,7 +479,6 @@ describe('provider-routed retry policy', () => {
     const normalIdle = waitForIdle(context, normalAgent)
     normalAgent.followup(createUserMessage({ content: [{ type: 'text', text: 'normal' }], source: { kind: 'user' } }))
     await normalIdle
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(normalAgent.session.snapshotEvents().some(event => event.type === 'llm/retry')).toBe(false)
 
     const alwaysAgent = await context.agentLoop.create(SessionId('retry-provider-always'), {
@@ -578,7 +565,6 @@ describe('provider-routed retry policy', () => {
     await idle
 
     expect(adapter.requests.map(request => request.provider)).toEqual(['mock', 'other', 'other'])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'llm/retry').map(event => ({
       provider: event.data.provider,
       retry: event.data.retry,
@@ -690,7 +676,6 @@ describe('provider-routed retry policy', () => {
     await vi.runAllTimersAsync()
     await idle
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = agent.session.snapshotEvents().filter(event => event.type === 'llm/retry')
     expect(adapter.requests).toHaveLength(5)
     expect(events.map(event => ({
@@ -735,7 +720,6 @@ describe('provider-routed retry policy', () => {
     const retriedContext = JSON.stringify(adapter.requests[1]?.messages)
     expect(retriedContext).not.toContain(diagnostic)
     expect(retriedContext).not.toContain('discarded partial output')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event =>
       event.type === 'llm/retry' && event.data.failure.message === diagnostic,
     )).toBe(true)
@@ -758,7 +742,6 @@ describe('provider-routed retry policy', () => {
     await idle
 
     expect(adapter.requests).toHaveLength(2)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'llm/retry')).toBe(false)
   })
 
@@ -810,7 +793,6 @@ describe('provider-routed retry policy', () => {
     await vi.advanceTimersByTimeAsync(60_000)
 
     expect(adapter.requests).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'step/start')).toHaveLength(1)
     expect(vi.getTimerCount()).toBe(0)
   })
@@ -852,7 +834,6 @@ describe('provider-routed retry policy', () => {
     expect(order[0]).toBe('downstream')
     expect(order).toEqual(expect.arrayContaining(['disposed', 'idle']))
     expect(adapter.requests).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'llm/retry')).toBe(false)
   })
 
@@ -891,7 +872,6 @@ describe('provider-routed retry policy', () => {
 
     expect(order).toEqual(['downstream', 'idle'])
     expect(adapter.requests).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
       type: 'turn/end',
       data: { reason: { kind: 'aborted' } },
@@ -929,7 +909,6 @@ describe('provider-routed retry policy', () => {
     await idle
 
     expect(adapter.requests).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
       type: 'turn/end',
       data: { reason: { kind: 'aborted' } },
@@ -987,7 +966,6 @@ describe('provider-routed retry policy', () => {
     await idle
 
     expect(adapter.requests).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
       type: 'turn/end',
       data: { reason: { kind: 'aborted' } },
@@ -1017,9 +995,7 @@ describe('provider-routed retry policy', () => {
     await idle
 
     expect(adapter.requests).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'llm/retry')).toBe(false)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
       type: 'turn/end',
       data: { reason: { kind: 'aborted' } },
@@ -1043,7 +1019,6 @@ describe('provider-routed retry policy', () => {
     await idle
 
     expect(adapter.requests).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'llm/retry')).toHaveLength(1)
     expect(vi.getTimerCount()).toBe(0)
   })
diff --git a/packages/llm/llm-retry/tests/transport-recovery.spec.ts b/packages/llm/llm-retry/tests/transport-recovery.spec.ts
index b14db6e47e..ba218842de 100644
--- a/packages/llm/llm-retry/tests/transport-recovery.spec.ts
+++ b/packages/llm/llm-retry/tests/transport-recovery.spec.ts
@@ -102,11 +102,9 @@ describe('bounded retry through the real DeepSeek HTTP/SSE adapter', () => {
 
     expect(server).toBeDefined()
     expect(server?.requests).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'step/start')
       .map(event => [event.data.turn, event.data.step]))
       .toEqual([[1, 1]])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'llm/retry').map(event => event.data.failure.code))
       .toEqual(['TRANSPORT'])
     expect(finalAssistantText(agent)).toBe('connected after retry')
@@ -133,9 +131,7 @@ describe('bounded retry through the real DeepSeek HTTP/SSE adapter', () => {
 
     expect(server.requests).toHaveLength(2)
     expect(server.requests[0]?.body).toEqual(server.requests[1]?.body)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const retryEvent = agent.session.snapshotEvents().find(event => event.type === 'llm/retry')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const failedAttempts = agent.session.snapshotEvents().filter((event): event is SessionEvent<'assistant/attempt'> =>
       event.type === 'assistant/attempt'
       && retryEvent !== undefined
@@ -143,11 +139,9 @@ describe('bounded retry through the real DeepSeek HTTP/SSE adapter', () => {
     )
     expect(failedAttempts).toHaveLength(1)
     expect(expandAssistantStream(failedAttempts[0]!.data.stream)).toHaveLength(failedChunkCount)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'assistant/message')
       .map(event => [event.data.turn, event.data.step]))
       .toEqual([[1, 1]])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'llm/retry').map(event => event.data.failure.code))
       .toEqual(['TRANSPORT'])
     expect(finalAssistantText(agent)).toBe('recovered response')
@@ -168,14 +162,11 @@ describe('bounded retry through the real DeepSeek HTTP/SSE adapter', () => {
 
     expect(server.requests).toHaveLength(2)
     expect(server.requests[0]?.body).toEqual(server.requests[1]?.body)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'llm/retry').map(event => event.data.failure.code))
       .toEqual(['EMPTY_RESPONSE'])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'assistant/message')
       .map(event => [event.data.turn, event.data.step]))
       .toEqual([[1, 1]])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
       type: 'turn/end',
       data: { reason: { kind: 'completed' } },
@@ -198,14 +189,10 @@ describe('bounded retry through the real DeepSeek HTTP/SSE adapter', () => {
     await sendAndWait(context, agent)
 
     expect(server.requests).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const attempt = agent.session.snapshotEvents().find(event => event.type === 'assistant/attempt' && event.data.turn === 1)
     expect(attempt?.type === 'assistant/attempt' ? expandAssistantStream(attempt.data.stream) : []).toHaveLength(3)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'assistant/message')).toBe(false)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'llm/retry')).toBe(false)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().at(-1)).toMatchObject({
       type: 'turn/end',
       data: { reason: { kind: 'error', error: { message: 'SSE stream ended without [DONE]', code: 'STREAM_CLOSED' } } },
@@ -228,7 +215,6 @@ describe('bounded retry through the real DeepSeek HTTP/SSE adapter', () => {
     await sendAndWait(context, agent)
 
     expect(server.requests.map(record => record.behavior)).toEqual(['stall', 'success'])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'llm/retry').map(event => event.data.failure.code))
       .toEqual(['TIMEOUT'])
     expect(finalAssistantText(agent)).toBe('recovered after timeout')
@@ -247,11 +233,8 @@ describe('bounded retry through the real DeepSeek HTTP/SSE adapter', () => {
     await sendAndWait(context, agent)
 
     expect(server.requests).toHaveLength(3)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'step/start')).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'llm/retry')).toHaveLength(2)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const end = agent.session.snapshotEvents().at(-1)
     expect(end).toMatchObject({
       type: 'turn/end',
diff --git a/packages/llm/token-meter/tests/context-breakdown-projection.spec.ts b/packages/llm/token-meter/tests/context-breakdown-projection.spec.ts
index 35f64858f9..769f00e0ec 100644
--- a/packages/llm/token-meter/tests/context-breakdown-projection.spec.ts
+++ b/packages/llm/token-meter/tests/context-breakdown-projection.spec.ts
@@ -292,7 +292,6 @@ describe('contextBreakdown session projection', () => {
     const first = appendUser(session, 'first message')
     const last = appendUser(session, 'last message')
     const definition = contextBreakdownProjectionDefinition
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const state = session.snapshotEvents().reduce(definition.apply, definition.init())
     const before = JSON.stringify(state)
     const replacement = session.append('user/message', createUserMessage({
@@ -383,10 +382,8 @@ describe('contextBreakdown session projection', () => {
     const { session } = await harness()
     const head = appendSystem(session, 'head')
     const definition = contextBreakdownProjectionDefinition
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const state = session.snapshotEvents().reduce(definition.apply, definition.init())
     replaceSystem(session, head, 'same')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const next = definition.apply(state, session.snapshotEvents().at(-1)!)
     expect(next).not.toBe(state)
     expect(definition.wire.view(next)).toBe(definition.wire.view(state))
@@ -424,7 +421,6 @@ describe('contextBreakdown session projection', () => {
       stale, [replacement], SessionLogOffset(replacement.seq), session.header, session.inheritedEventCount,
     )).toThrow('re-read from seq 0')
     const replayed = ctx.sessionProjections.restore(
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       stale, session.snapshotEvents(), SessionLogOffset(0), session.header, session.inheritedEventCount,
     )
     expect(replayed.snapshot.values.contextBreakdown).toEqual(projected(ctx, session))
@@ -437,7 +433,6 @@ describe('contextBreakdown session projection', () => {
       },
     }
     expect(() => ctx.sessionProjections.restore(
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       invalid, session.snapshotEvents(), SessionLogOffset(0), session.header, session.inheritedEventCount,
     )).toThrow()
   })
@@ -457,7 +452,6 @@ describe('contextBreakdown session projection', () => {
       expect.soft(ctx.sessionProjections.viewCheckpoint(checkpoint)).not.toHaveProperty('contextBreakdown')
       expect.soft(ctx.sessionProjections.restoreFloor(checkpoint)).toBe(0)
       const restored = ctx.sessionProjections.restore(
-        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         checkpoint, session.snapshotEvents(), SessionLogOffset(0), session.header, session.inheritedEventCount,
       )
       expect(restored.snapshot.values.contextBreakdown).toEqual({
diff --git a/packages/llm/token-meter/tests/token-meter.spec.ts b/packages/llm/token-meter/tests/token-meter.spec.ts
index bd8218beb0..e795ea5507 100644
--- a/packages/llm/token-meter/tests/token-meter.spec.ts
+++ b/packages/llm/token-meter/tests/token-meter.spec.ts
@@ -230,7 +230,6 @@ describe('TokenMeter pricing', () => {
     const result = service.measure(session)
     expect(result.baseline.kind).toBe('estimated')
     expect(result.totalTokens).toBeGreaterThan(result.surfaceTokens)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(result.logRevision).toBe(session.snapshotEvents().length)
     expectSurfaceTotal(result)
   })
@@ -424,7 +423,6 @@ describe('replay anchors and surface folds', () => {
       content: [{ type: 'text', text: 'new tail' }],
       source: { kind: 'user' },
     }), { surfaceOp: 'append' })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const seeded = Session.create(SessionId('surface-seeded'), original.snapshotEvents())
     const before = service.measure(seeded)
     expect(before.nodes).toHaveLength(2)
@@ -438,9 +436,7 @@ describe('replay anchors and surface folds', () => {
     }), { surfaceOp: { op: 'replace', startSeq: first, endSeq: first }, sourceEventSeqs: [first] })
     const after = service.measure(seeded)
     expect(after.nodes).toHaveLength(2)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(after.nodes[0]!.seq).toBe(seeded.snapshotEvents().length - 1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(after.logRevision).toBe(seeded.snapshotEvents().length)
     expect(Object.isFrozen(after.nodes)).toBe(true)
     expect(Object.isFrozen(after.nodes[0])).toBe(true)
@@ -448,7 +444,6 @@ describe('replay anchors and surface folds', () => {
     expectSurfaceTotal(after)
     expect(before.nodes).toHaveLength(2)
     // The earlier snapshot still reports the log it measured: seed + boundary.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(before.logRevision).toBe(original.snapshotEvents().length + 1)
     expect(before.surfaceDeltaTokens).toBeGreaterThan(0)
   })
@@ -460,7 +455,6 @@ describe('replay anchors and surface folds', () => {
       durableText: '',
     })
     const measurement = meter().measure(session)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const assistant = session.snapshotEvents().find(event => event.type === 'assistant/message')!
     expect(measurement.nodes).toEqual([{ seq: assistant.seq, tokens: 0, heuristicTokens: 0 }])
     expect(measurement.surfaceTokens).toBe(0)
diff --git a/packages/plan/plan-mode/tests/integration.spec.ts b/packages/plan/plan-mode/tests/integration.spec.ts
index 4b0eb97f01..ac82e45822 100644
--- a/packages/plan/plan-mode/tests/integration.spec.ts
+++ b/packages/plan/plan-mode/tests/integration.spec.ts
@@ -105,7 +105,6 @@ describe('plan mode through the agent loop', () => {
     agent.followup(createUserMessage({ content: [{ type: 'text', text: 'explore the repo' }], source: { kind: 'user' } }))
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const log = agent.session.snapshotEvents()
     const planMode = findEvent(log, 'plan/mode')
     const header = findEvent(log, 'request/header')
@@ -139,10 +138,8 @@ describe('plan mode through the agent loop', () => {
     agent.followup(createUserMessage({ content: [{ type: 'text', text: 'hello' }], source: { kind: 'user' } }))
     await waitForIdle(ctx, agent)
     expect(planActive(ctx, agent)).toBe(false)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const first = findEvent(agent.session.snapshotEvents(), 'request/header')
     expect(first.data.header.tools?.map(tool => tool.name)).toEqual(['exit_plan_mode', 'read', 'write'])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const firstSystem = findEvent(agent.session.snapshotEvents(), 'system/message')
     expect(systemText(agent)).not.toContain(PLAN_CONFIG.section)
 
@@ -150,7 +147,6 @@ describe('plan mode through the agent loop', () => {
     agent.followup(createUserMessage({ content: [{ type: 'text', text: 'now plan' }], source: { kind: 'user' } }))
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const log = agent.session.snapshotEvents()
     expect(planActive(ctx, agent)).toBe(true)
     const notices = log.filter(event => event.type === 'user/message' && event.data.source.kind === 'plugin')
@@ -200,7 +196,6 @@ describe('plan mode through the agent loop', () => {
     expect(requestSystem(adapter.requests[1])).not.toContain(PLAN_CONFIG.section)
     expect(adapter.requests[1]?.tools).toEqual(adapter.requests[0]?.tools)
     expect(ctx.planMode.get(agent)).toEqual({ active: false, pending: true })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'plan/mode')).toBe(false)
 
     const nextIdle = waitForIdle(ctx, agent)
@@ -210,7 +205,6 @@ describe('plan mode through the agent loop', () => {
     expect(adapter.requests).toHaveLength(3)
     expect(requestSystem(adapter.requests[2])).toContain(PLAN_CONFIG.section)
     expect(adapter.requests[2]?.tools).toEqual(adapter.requests[0]?.tools)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const log = agent.session.snapshotEvents()
     const planMode = findEvent(log, 'plan/mode')
     const firstEnd = log.find(event => event.type === 'step/end'
diff --git a/packages/plan/plan-mode/tests/plan-mode.spec.ts b/packages/plan/plan-mode/tests/plan-mode.spec.ts
index 9bd0e7c87c..2e3bd89949 100644
--- a/packages/plan/plan-mode/tests/plan-mode.spec.ts
+++ b/packages/plan/plan-mode/tests/plan-mode.spec.ts
@@ -142,7 +142,6 @@ function header(session: Session): void {
 }
 
 function noticeTexts(session: Session): string[] {
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return session.snapshotEvents()
     .filter(event => event.type === 'user/message' && event.data.source.kind === 'plugin')
     .map(event => (event.data as { content: { type: string; text?: string }[] }).content.map(block => block.text ?? '').join(''))
@@ -206,12 +205,10 @@ describe('resolveConfig', () => {
 describe('foldPlanMode', () => {
   it('folds an empty log to inactive and takes the last plan/mode otherwise', () => {
     const session = Session.create(SessionId('fold'))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(session.snapshotEvents())).toBe(false)
     session.append('plan/mode', { active: true })
     session.append('plan/mode', { active: false })
     session.append('plan/mode', { active: true })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(session.snapshotEvents())).toBe(true)
   })
 
@@ -219,9 +216,7 @@ describe('foldPlanMode', () => {
     const session = Session.create(SessionId('fold-prefix'))
     session.append('plan/mode', { active: true })
     session.append('plan/mode', { active: false })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(session.snapshotEvents(), 1)).toBe(true)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(session.snapshotEvents(), 0)).toBe(false)
   })
 })
@@ -286,16 +281,13 @@ describe('ctx.planMode: get/set', () => {
     const ctx = await setup()
     const agent = await agentWithSession(ctx, 'agent-idle')
     expect(ctx.planMode.set(agent, true)).toBe('committed')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
     expect(ctx.planMode.get(agent)).toEqual({ active: true })
     // Immediately reversible, still without a boundary.
     expect(ctx.planMode.set(agent, false)).toBe('committed')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(false)
     // A later boundary finds nothing pending — no double append.
     await boundary(ctx, agent, 'step-start')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().filter(event => event.type === 'plan/mode')).toHaveLength(2)
   })
 
@@ -307,7 +299,6 @@ describe('ctx.planMode: get/set', () => {
     closeTurn(agent.session)
     // Back to the logged state: the pending intent clears, nothing lands.
     expect(ctx.planMode.set(agent, false)).toBe('cancelled')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'plan/mode')).toBe(false)
     expect(ctx.planMode.get(agent)).toEqual({ active: false })
   })
@@ -328,7 +319,6 @@ describe('the boundary flush', () => {
     const service = ctx.planMode as unknown as { onBoundary(session: Session): void }
 
     expect(() => { service.onBoundary(agent.session) }).not.toThrow()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'plan/mode')).toBe(false)
   })
 
@@ -338,7 +328,6 @@ describe('the boundary flush', () => {
     openTurn(agent.session)
     ctx.planMode.set(agent, true)
     await boundary(ctx, agent, 'pre-step')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
     expect(ctx.planMode.get(agent)).toEqual({ active: true })
   })
@@ -354,7 +343,6 @@ describe('the boundary flush', () => {
     ctx.planMode.set(agent, true)
     await fiber.dispose()
     await boundary(ctx, agent, 'pre-step')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'plan/mode')).toBe(false)
   })
 
@@ -363,7 +351,6 @@ describe('the boundary flush', () => {
     const agent = await agentWithSession(ctx)
     ctx.planMode.set(agent, true)
     await boundary(ctx, agent, 'step-start')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
   })
 
@@ -375,7 +362,6 @@ describe('the boundary flush', () => {
     ctx.planMode.set(agent, true)
     ctx.planMode.set(agent, false)
     await boundary(ctx, agent, 'pre-step')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'plan/mode')).toBe(false)
     expect(noticeTexts(agent.session)).toEqual([])
   })
@@ -417,7 +403,6 @@ describe('the boundary flush', () => {
     agent.session.append('plan/mode', { active: false })
     ctx.planMode.set(agent, true)
     await boundary(ctx, agent, 'step-start')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
     expect(noticeTexts(agent.session)).toEqual([])
   })
@@ -445,7 +430,6 @@ describe('the boundary flush', () => {
     expect(ctx.planMode.get(agent)).toEqual({ active: false, pending: true })
     agent.session.append = original
     await boundary(ctx, agent, 'step-start')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
     expect(ctx.planMode.get(agent).pending).toBeUndefined()
   })
@@ -690,7 +674,6 @@ describe('/plan', () => {
     expect(enteringSteer).not.toHaveBeenCalled()
     await boundary(ctx, entering, 'step-start')
     expect(ctx.planMode.get(entering)).toEqual({ active: false })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(entering.session.snapshotEvents().some(event => event.type === 'plan/mode')).toBe(false)
 
     const active = await agentWithSession(ctx, 'active-plan-command', { active: true })
@@ -715,11 +698,9 @@ describe('/plan', () => {
     const agent = await agentWithSession(ctx, 'idle-plan-command')
     expect((await ctx.commands.execute(agent, '/plan', [], signal))?.result)
       .toEqual({ kind: 'success', text: 'Plan mode on. Use /plan off to leave.' })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
     expect((await ctx.commands.execute(agent, '/plan off', [], signal))?.result)
       .toEqual({ kind: 'success', text: 'Plan mode off.' })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(false)
   })
 
@@ -883,7 +864,6 @@ describe('exit_plan_mode', () => {
       expect(result.content).toEqual([{ type: 'text', text: 'Error: exit_plan_mode requires a non-empty markdown plan starting with a # heading' }])
     }
     expect(asked).toHaveLength(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
   })
 
@@ -893,7 +873,6 @@ describe('exit_plan_mode', () => {
     const result = await callExit(ctx, agent)
     expect(result.isError).toBe(true)
     expect(result.content).toEqual([{ type: 'text', text: 'Error: no user-questions channel is available to review the plan; ask the user to switch the session mode instead' }])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
   })
 
@@ -902,7 +881,6 @@ describe('exit_plan_mode', () => {
     const result = await callExit(ctx, agent)
     expect(result.isError).toBe(true)
     expect(result.content).toEqual([{ type: 'text', text: 'Error: no user-questions answerer accepted the request' }])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
   })
 
@@ -923,7 +901,6 @@ describe('exit_plan_mode', () => {
       text: "Error: human interaction is unavailable while the calling agent is owned by another live agent; include the unresolved question or decision in the child agent's final result",
     }])
     expect(ask).not.toHaveBeenCalled()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(child.session.snapshotEvents())).toBe(true)
   })
 
@@ -936,11 +913,9 @@ describe('exit_plan_mode', () => {
     expect(result.content).toEqual([{ type: 'text', text: 'Plan approved — plan mode exited; carry out the plan starting with your next step.' }])
     // Boundary-applied, not a direct append: the fold stays plan until the
     // step's end, so the plan policy covers any remaining call of the SAME batch.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
     expect(ctx.planMode.get(agent)).toEqual({ active: true, pending: false })
     await boundary(ctx, agent, 'step-start')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(false)
     expect(asked).toHaveLength(1)
     expect(asked[0]?.agent).toBe(agent)
@@ -991,7 +966,6 @@ describe('exit_plan_mode', () => {
       question: 'Approve this plan and leave plan mode?',
       detail: plan,
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().find(event => event.type === 'tool/ptc-dispatch')?.data).toMatchObject({
       name: EXIT_PLAN_MODE,
       arguments: { plan },
@@ -1007,13 +981,11 @@ describe('exit_plan_mode', () => {
     // Calls of the SAME assistant response were requested under the existing
     // plan-shaped header. Pending state shapes only the proposed next
     // assembly; the accepted boundary then commits the matching durable fold.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
     const assembly = await ctx.systemPrompt.assemble({ agent })
     expect(assembly.tools.some(tool => tool.name === EXIT_PLAN_MODE)).toBe(true)
     expect(assembly.sections.find(section => section.name === 'plan:policy')?.text).toBe('')
     await boundary(ctx, agent, 'step-start')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(false)
     const afterExit = await ctx.systemPrompt.assemble({ agent })
     expect(afterExit.tools).toEqual(assembly.tools)
@@ -1025,7 +997,6 @@ describe('exit_plan_mode', () => {
     header(agent.session)
     await callExit(ctx, agent)
     await boundary(ctx, agent, 'step-start')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(false)
     expect(noticeTexts(agent.session)).toEqual([])
   })
@@ -1035,7 +1006,6 @@ describe('exit_plan_mode', () => {
     const result = await callExit(ctx, agent)
     expect(result.isError).toBe(true)
     expect(result.content).toEqual([{ type: 'text', text: 'Error: The user chose to keep planning; their feedback: consider the resume path' }])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
   })
 
@@ -1051,7 +1021,6 @@ describe('exit_plan_mode', () => {
     const result = await callExit(ctx, agent)
     expect(result.isError).toBe(true)
     expect(result.content).toEqual([{ type: 'text', text: 'Error: The user chose to keep planning; their feedback: add tests first' }])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
   })
 
@@ -1060,7 +1029,6 @@ describe('exit_plan_mode', () => {
     const result = await callExit(ctx, agent)
     expect(result.isError).toBe(true)
     expect(result.content).toEqual([{ type: 'text', text: 'Error: The user chose to keep planning; revise the plan and present it again.' }])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
   })
 
@@ -1069,7 +1037,6 @@ describe('exit_plan_mode', () => {
     const result = await callExit(ctx, agent)
     expect(result.isError).toBe(true)
     expect(result.content).toEqual([{ type: 'text', text: 'Error: The user chose to keep planning; their feedback: change the tests' }])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
   })
 
@@ -1084,7 +1051,6 @@ describe('exit_plan_mode', () => {
     const result = await callExit(ctx, agent)
     expect(result.isError).toBe(true)
     expect(result.content).toEqual([{ type: 'text', text: 'Error: The user chose to keep planning; revise the plan and present it again.' }])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
   })
 
@@ -1117,7 +1083,6 @@ describe('exit_plan_mode', () => {
     const result = await callExit(ctx, agent)
     expect(result.isError).toBe(true)
     expect(result.content).toEqual([{ type: 'text', text: 'Error: The user dismissed the plan review to speak instead; stay in plan mode, stop here, and wait for their message.' }])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
   })
 
@@ -1130,7 +1095,6 @@ describe('exit_plan_mode', () => {
     const result = await callExit(ctx, agent)
     expect(result.isError).toBe(true)
     expect(result.content).toEqual([{ type: 'text', text: 'Error: ask_user_question was aborted before the user answered' }])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
   })
 
@@ -1171,7 +1135,6 @@ describe('exit_plan_mode', () => {
     const result = await pending
     expect(result.isError).toBe(true)
     expect(result.content).toEqual([{ type: 'text', text: 'Error: the plan-mode service was reloaded while the plan was under review; present the plan again' }])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
   })
 
@@ -1181,7 +1144,6 @@ describe('exit_plan_mode', () => {
     const result = await callExit(ctx, agent)
     expect(result.isError).toBe(true)
     expect(result.content).toEqual([{ type: 'text', text: 'Error: review aborted' }])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldPlanMode(agent.session.snapshotEvents())).toBe(true)
   })
 
@@ -1233,7 +1195,6 @@ describe('HMR disposal', () => {
     expect(ctx.tools.get(EXIT_PLAN_MODE)).toBeUndefined()
     expect((await ctx.systemPrompt.assemble()).sections.map(section => section.name)).not.toContain('plan:policy')
     await boundary(ctx, agent, 'step-start')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().some(event => event.type === 'plan/mode')).toBe(false)
   })
 })
diff --git a/packages/plan/plan-mode/tests/projection.spec.ts b/packages/plan/plan-mode/tests/projection.spec.ts
index 1e15df94b4..f4d46d5b62 100644
--- a/packages/plan/plan-mode/tests/projection.spec.ts
+++ b/packages/plan/plan-mode/tests/projection.spec.ts
@@ -155,7 +155,6 @@ describe('plan projection unit', () => {
     // A second registry over the same log (the cold-read shape): no service
     // memory involved, the fold alone answers {active:false, pending:true}.
     const cold = await harness(true)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     for (const event of bench.session.snapshotEvents()) {
       if (event.type === 'command/run' || event.type === 'command/done' || event.type === 'plan/mode') {
         cold.session.append(event.type, event.data)
diff --git a/packages/preset/agent-presets/tests/remote.spec.ts b/packages/preset/agent-presets/tests/remote.spec.ts
index f02651d2f5..b1a685d019 100644
--- a/packages/preset/agent-presets/tests/remote.spec.ts
+++ b/packages/preset/agent-presets/tests/remote.spec.ts
@@ -98,7 +98,6 @@ async function agentOn(ctx: Context, id: string, presetId?: string): Promise<Age
 
 /** The recorded preset a restart replays, which is what a switch must move. */
 const recordedPreset = (agent: Agent): unknown =>
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   agent.session.snapshotEvents().findLast(event => event.type === 'agent-preset/selected')?.data
 
 describe('the roster a client reads', () => {
diff --git a/packages/sandbox/sandbox-policy/tests/policy.spec.ts b/packages/sandbox/sandbox-policy/tests/policy.spec.ts
index 543fbff319..608abeeade 100644
--- a/packages/sandbox/sandbox-policy/tests/policy.spec.ts
+++ b/packages/sandbox/sandbox-policy/tests/policy.spec.ts
@@ -207,7 +207,6 @@ describe('sandbox:policy request context', () => {
   it('reconstructs resumed policy from the session log and omits diagnostics without an agent', async () => {
     const active = session('sess-resume', '/projects/current')
     setSandboxMode(active, 'workspace-write')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const resumed = Session.create(active.id, active.snapshotEvents(), active.header)
     const ctx = await promptMounted({ mode: 'read-only' })
 
@@ -233,7 +232,6 @@ describe('the sandbox/mode session kit', () => {
   it('setSandboxMode appends exactly one sandbox/mode event per switch', () => {
     const session = Session.create(SessionId('sess-write'))
     setSandboxMode(session, 'danger-full-access')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const modeEvents = session.snapshotEvents().filter(e => e.type === 'sandbox/mode')
     expect(modeEvents).toHaveLength(1)
     expect(modeEvents[0]?.data).toEqual({ mode: 'danger-full-access' })
diff --git a/packages/schedule/schedule/tests/invariant.spec.ts b/packages/schedule/schedule/tests/invariant.spec.ts
index 5600ea2635..f595bfa081 100644
--- a/packages/schedule/schedule/tests/invariant.spec.ts
+++ b/packages/schedule/schedule/tests/invariant.spec.ts
@@ -53,7 +53,6 @@ describe('Schedule package invariant', () => {
     const session = ctx.sessions.create(SessionId('schedule-invariant'))
     session.append('turn/start', { turn: 1 })
     session.append('schedule/change', create('schedule-1'))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(2)
 
     expect(() => session.append('schedule/change', {
@@ -61,11 +60,9 @@ describe('Schedule package invariant', () => {
       operation: 'delete',
       id: ScheduleId('missing'),
     })).toThrow(InvariantError)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(2)
 
     session.append('schedule/change', { version: 1, operation: 'dispatch', id: ScheduleId('schedule-1') })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(3)
     await ctx.fiber.dispose()
   })
@@ -85,7 +82,6 @@ describe('Schedule package invariant', () => {
       id: ScheduleId('schedule-every'),
       acceptedAt: '2026-08-05T12:17:34.000Z',
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(2)
     await ctx.fiber.dispose()
   })
@@ -122,7 +118,6 @@ describe('Schedule package invariant', () => {
     })
     const fiber = await ctx.plugin(scheduleInvariant)
     child.append('schedule/change', create('child'))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.snapshotEvents().at(-1)?.data).toMatchObject({ operation: 'create' })
     await fiber.dispose()
     await ctx.fiber.dispose()
diff --git a/packages/schedule/schedule/tests/jsonl-restart.spec.ts b/packages/schedule/schedule/tests/jsonl-restart.spec.ts
index 3a86c940d6..baf02e4702 100644
--- a/packages/schedule/schedule/tests/jsonl-restart.spec.ts
+++ b/packages/schedule/schedule/tests/jsonl-restart.spec.ts
@@ -107,7 +107,6 @@ describe('Schedule production JSONL restart', () => {
     )
     pending.append('schedule/change', { version: 1, operation: 'create', schedule: pendingRecord })
     const seed = await first.sessionPersistence.create(pending.header)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     await seed.append(pending.snapshotEvents())
     await seed.close()
     await disposeContext(first)
@@ -144,7 +143,6 @@ describe('Schedule production JSONL restart', () => {
     await replayed.sessions.flush(replayHandle.agent.session)
 
     expect(replayAdapter.requests).toEqual([])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(replayHandle.agent.session.snapshotEvents().filter(event =>
       event.type === 'schedule/change' && event.data.operation === 'dispatch')).toHaveLength(1)
     const replayedStored = await readStored(replayed, sessionId)
diff --git a/packages/schedule/schedule/tests/runtime.spec.ts b/packages/schedule/schedule/tests/runtime.spec.ts
index a1daefbef8..f216babd7d 100644
--- a/packages/schedule/schedule/tests/runtime.spec.ts
+++ b/packages/schedule/schedule/tests/runtime.spec.ts
@@ -173,7 +173,6 @@ describe('Schedule timer and admission runtime', () => {
     await settle()
     expect(test.followed).toHaveLength(1)
     expect(test.controls.releaseCount).toBe(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().find(event =>
       event.type === 'schedule/change' && event.data.operation === 'dispatch')).toBeDefined()
     await runtime.dispose()
@@ -224,7 +223,6 @@ describe('Schedule timer and admission runtime', () => {
 
     expect(test.followed).toEqual([])
     expect(test.controls.whenIdleCount).toBe(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().at(-1)?.data).toMatchObject({ operation: 'create' })
 
     runtime.requestDrive()
@@ -297,14 +295,12 @@ describe('Schedule timer and admission runtime', () => {
       ].join('\n'),
     }])
     expect(test.followed[0]?.source).toEqual({ kind: 'plugin', plugin: 'schedule' })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const dispatches = test.agent.session.snapshotEvents().filter(event =>
       event.type === 'schedule/change' && event.data.operation === 'dispatch')
     expect(dispatches.map(event => event.data)).toEqual([
       { version: 1, operation: 'dispatch', id: 'schedule-fast', acceptedAt: '2026-08-05T12:00:00.000Z' },
       { version: 1, operation: 'dispatch', id: 'schedule-slow', acceptedAt: '2026-08-05T12:00:00.000Z' },
     ])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldScheduleEvents(test.agent.session.snapshotEvents()).active).toEqual([
       expect.objectContaining({ id: 'schedule-fast', scheduledAt: '2026-08-05T12:05:00.000Z' }),
       expect.objectContaining({ id: 'schedule-slow', scheduledAt: '2026-08-05T12:09:00.000Z' }),
@@ -374,7 +370,6 @@ describe('Schedule timer and admission runtime', () => {
 
     expect(test.controls.releaseCount).toBe(1)
     expect(test.followed).toEqual([])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().at(-1)?.data).toMatchObject({ operation: 'delete' })
     runtime.requestDrive()
     await settle()
@@ -434,7 +429,6 @@ describe('Schedule runtime failure and teardown boundaries', () => {
     await settle()
 
     expect(test.controls.releaseCount).toBe(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().filter(event =>
       event.type === 'schedule/change' && event.data.operation === 'dispatch')).toEqual([])
     await runtime.dispose()
@@ -466,7 +460,6 @@ describe('Schedule runtime failure and teardown boundaries', () => {
 
     expect(test.followed).toHaveLength(1)
     expect(test.controls.releaseCount).toBe(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().filter(event =>
       event.type === 'schedule/change' && event.data.operation === 'dispatch')).toEqual([])
     runtime.requestDrive()
@@ -494,7 +487,6 @@ describe('Schedule runtime failure and teardown boundaries', () => {
 
     expect(test.followed).toHaveLength(1)
     expect(test.controls.releaseCount).toBe(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().filter(event => (
       event.type === 'schedule/change' && event.data.operation === 'dispatch'
     )).map(event => event.data)).toEqual([{
@@ -503,7 +495,6 @@ describe('Schedule runtime failure and teardown boundaries', () => {
       id: 'schedule-first',
       acceptedAt: '2026-08-05T12:00:00.000Z',
     }])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldScheduleEvents(test.agent.session.snapshotEvents()).active).toEqual([
       expect.objectContaining({ id: 'schedule-first', scheduledAt: '2026-08-05T12:05:00.000Z' }),
       expect.objectContaining({ id: 'schedule-second', scheduledAt: '2026-08-05T11:55:00.000Z' }),
@@ -554,7 +545,6 @@ describe('Schedule runtime failure and teardown boundaries', () => {
     await settle()
     expect(test.controls.flushCount).toBe(1)
     expect(test.followed).toEqual([])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().at(-1)?.data).toMatchObject({ operation: 'create' })
     await runtime.dispose()
 
@@ -617,7 +607,6 @@ describe('Schedule runtime failure and teardown boundaries', () => {
     }
     await settle()
     expect(test.followed).toEqual([])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().filter(event =>
       event.type === 'schedule/change' && event.data.operation === 'dispatch')).toEqual([])
   })
diff --git a/packages/schedule/schedule/tests/tools.spec.ts b/packages/schedule/schedule/tests/tools.spec.ts
index 467bc4f288..35e4dc1724 100644
--- a/packages/schedule/schedule/tests/tools.spec.ts
+++ b/packages/schedule/schedule/tests/tools.spec.ts
@@ -160,7 +160,6 @@ describe('Schedule tool protocol', () => {
     expect(value(await execute(test, 'schedule_create', { prompt: 'x', every_seconds: 299 })))
       .toEqual({ code: 'frequency_too_high', message: 'every_seconds must be at least 300.' })
     expect(test.flushes.count).toBe(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().filter(event => event.type === 'schedule/change')).toEqual([])
   })
 
@@ -234,7 +233,6 @@ describe('Schedule tool protocol', () => {
       expect.objectContaining({ id: 'schedule-1', kind: 'at' }),
       expect.objectContaining({ id: 'schedule-2', kind: 'at' }),
     ])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const changes = test.agent.session.snapshotEvents()
       .filter(event => event.type === 'schedule/change' && event.data.operation === 'create')
     expect(changes.map((change) => {
@@ -303,7 +301,6 @@ describe('Schedule tool protocol', () => {
       message: 'The scheduled time must be strictly in the future.',
     })
     expect(test.flushes.count).toBe(3)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().filter(event => event.type === 'schedule/change')).toEqual([])
   })
 
@@ -316,7 +313,6 @@ describe('Schedule tool protocol', () => {
       message: 'The scheduled time must be representable as a four-digit-year RFC 3339 UTC instant.',
     })
     expect(test.flushes.count).toBe(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().filter(event => event.type === 'schedule/change')).toEqual([])
 
     const internal = await harness()
@@ -443,7 +439,6 @@ describe('Schedule persistence failure boundaries', () => {
       error: { info: { name: 'AbortError', code: 'ABORTED' } },
     })
     expect(test.flushes.count).toBe(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().filter(event => event.type === 'schedule/change')).toEqual([])
   })
 
@@ -468,7 +463,6 @@ describe('Schedule persistence failure boundaries', () => {
       error: { info: { name: 'AbortError', code: 'ABORTED' } },
     })
     expect(test.flushes.count).toBe(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().filter(event => event.type === 'schedule/change')).toEqual([])
   })
 
@@ -492,7 +486,6 @@ describe('Schedule persistence failure boundaries', () => {
       error: { info: { name: 'AbortError', code: 'ABORTED' } },
     })
     expect(test.flushes.count).toBe(3)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(test.agent.session.snapshotEvents().filter(event => event.type === 'schedule/change'))
       .toHaveLength(1)
     expect(value(await execute(test, 'schedule_list', {})))
@@ -504,7 +497,6 @@ describe('Schedule persistence failure boundaries', () => {
     createTest.flushes.outcomes.push('reject')
     expect(value(await execute(createTest, 'schedule_create', { prompt: 'later', after_seconds: 1 })))
       .toMatchObject({ code: 'persistence_uncertain', operation: 'create' })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(createTest.agent.session.snapshotEvents().filter(event => event.type === 'schedule/change')).toEqual([])
 
     const deleteTest = await harness()
@@ -512,7 +504,6 @@ describe('Schedule persistence failure boundaries', () => {
     deleteTest.flushes.outcomes.push('reject')
     expect(value(await execute(deleteTest, 'schedule_delete', { id: 'schedule-1' })))
       .toMatchObject({ code: 'persistence_uncertain', operation: 'delete', id: 'schedule-1' })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(deleteTest.agent.session.snapshotEvents().at(-1)?.data).toMatchObject({ operation: 'create' })
   })
 
diff --git a/packages/session-query/session-log-export/tests/loader-composition.host.spec.ts b/packages/session-query/session-log-export/tests/loader-composition.host.spec.ts
index afb9125448..1d61e0ef3a 100644
--- a/packages/session-query/session-log-export/tests/loader-composition.host.spec.ts
+++ b/packages/session-query/session-log-export/tests/loader-composition.host.spec.ts
@@ -65,7 +65,6 @@ describe('session-log-download real Loader composition', () => {
     })
     const execution = await context.commands.execute(agent, '/export', [], new AbortController().signal)
     expect(execution?.result).toEqual({ kind: 'success', text: 'Session log download requested.' })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().map(event => event.type)).toEqual(['command/run', 'command/done'])
     expect(session.deriveMessages()).toEqual([])
   })
diff --git a/packages/session-query/session-query/tests/session-query.spec.ts b/packages/session-query/session-query/tests/session-query.spec.ts
index b1cfa90c28..ea89275ef3 100644
--- a/packages/session-query/session-query/tests/session-query.spec.ts
+++ b/packages/session-query/session-query/tests/session-query.spec.ts
@@ -1034,7 +1034,6 @@ describe('session-query exact reads', () => {
     }).toThrow()
     Object.assign(snapshot.session, { cwd: '/mutated' })
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const logged = session.eventAt(SessionSeq(4))
     expect(logged?.type === 'user/message' && logged.data.content).toHaveLength(1)
     expect(session.header.cwd).toBe('/work')
@@ -1072,7 +1071,6 @@ describe('session-query exact reads', () => {
       (result.events[0]!.data as { content: unknown[] }).content = []
     }).toThrow()
     expect(session.header.createdAt).not.toBe(-1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const logged = session.eventAt(SessionSeq(1))
     expect(logged?.type === 'user/message' && logged.data.content).toHaveLength(1)
 
diff --git a/packages/session-query/tool-session-query/tests/tool-session-query.spec.ts b/packages/session-query/tool-session-query/tests/tool-session-query.spec.ts
index 0ca1de7052..c127c2a127 100644
--- a/packages/session-query/tool-session-query/tests/tool-session-query.spec.ts
+++ b/packages/session-query/tool-session-query/tests/tool-session-query.spec.ts
@@ -2006,7 +2006,6 @@ describe('trace and exact read rendering', () => {
     expect(text(result)).toContain('Replacement chain: 1')
     expect(text(result)).toContain('Events cited directly as sources: none')
     expect(text(result)).toContain('Direct derived events: 1')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(text(result)).toContain(new Date(session.snapshotEvents()[0]?.time ?? 0).toISOString())
   })
 
diff --git a/packages/session/session-log-deepseek/tests/feedback-composition.spec.ts b/packages/session/session-log-deepseek/tests/feedback-composition.spec.ts
index 31eb4d215f..76702f4c38 100644
--- a/packages/session/session-log-deepseek/tests/feedback-composition.spec.ts
+++ b/packages/session/session-log-deepseek/tests/feedback-composition.spec.ts
@@ -84,7 +84,6 @@ it('uploads freeform feedback and message put/edit/delete through the unchanged
     recordFeedback(session, '  The session needs a clearer explanation.  ')
     const created = await ctx.messageFeedback.put({ sessionId: session.id, messageId: assistant.id, rating: 'negative', note: 'Explain the result.', ifVersion: null })
     if (!created.ok) throw new Error(created.error.code)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const initialPrefix = session.snapshotEvents()
     const request = async () => {
       const chunks = []
@@ -133,7 +132,6 @@ it('uploads freeform feedback and message put/edit/delete through the unchanged
       ] })
     }
     await ctx.sessions.flush(session)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect((await handle.read()).events).toEqual(session.snapshotEvents())
   } finally {
     await handle.close()
diff --git a/packages/session/session-log-deepseek/tests/upload.spec.ts b/packages/session/session-log-deepseek/tests/upload.spec.ts
index dc4eb3f1c3..e92df32921 100644
--- a/packages/session/session-log-deepseek/tests/upload.spec.ts
+++ b/packages/session/session-log-deepseek/tests/upload.spec.ts
@@ -117,7 +117,6 @@ describe('incremental DeepSeek session-log upload', () => {
       turn: 1, step: 3, message: createSystemMessage('new head', 'fixture'),
     }, { surfaceOp: { op: 'replace', startSeq: head.seq, endSeq: head.seq }, sourceEventSeqs: [head.seq] })
     const prepared = await ctx.deepseekLlmApiExtensions.prepare({ body: body(), signal: SIGNAL, sessionId: session.id })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(prepared.fields.dsh_session_log?.events).toEqual(session.snapshotEvents())
   })
 
@@ -177,7 +176,6 @@ describe('incremental DeepSeek session-log upload', () => {
     expect(firstPayload?.events).toHaveLength(2)
     await first.accept()
     expect(SessionLogDeepSeek.acceptedThrough(session)).toBe(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().at(-1)?.data).toEqual({
       sessionId: session.id,
       throughSeq: 1,
@@ -199,7 +197,6 @@ describe('incremental DeepSeek session-log upload', () => {
     first.session.append('turn/start', { turn: 1 })
     const prepared = await first.ctx.deepseekLlmApiExtensions.prepare({ body: body(), signal: SIGNAL, sessionId: first.session.id })
     await prepared.accept()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const seed = first.session.snapshotEvents()
 
     const resumed = await harness('parent', seed)
@@ -364,7 +361,6 @@ describe('incremental DeepSeek session-log upload', () => {
     const { ctx, session } = await harness('direct-events')
     session.append('turn/start', { turn: 1 })
     const prepared = await ctx.deepseekLlmApiExtensions.prepare({ body: {}, signal: SIGNAL, sessionId: session.id })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(prepared.fields.dsh_session_log?.events).toEqual(session.snapshotEvents())
   })
 
diff --git a/packages/session/session-persistence-jsonl/tests/multi-edge-publication.spec.ts b/packages/session/session-persistence-jsonl/tests/multi-edge-publication.spec.ts
index 814da947a6..9be35ec1bf 100644
--- a/packages/session/session-persistence-jsonl/tests/multi-edge-publication.spec.ts
+++ b/packages/session/session-persistence-jsonl/tests/multi-edge-publication.spec.ts
@@ -176,7 +176,6 @@ function assertMigrated(result: Awaited<ReturnType<typeof readSession>>) {
   expect(session.firstLiveSeq).toBe(23)
   expect(session.isOwnSeq(SessionSeq(8))).toBe(false)
   expect(session.isOwnSeq(SessionSeq(9))).toBe(true)
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   expect(session.ownEvents()).toEqual([
     ...events.slice(9),
     expect.objectContaining({ type: 'session/end-seed', seq: 23, data: {} }),
diff --git a/packages/session/session-persistence-jsonl/tests/v2-system-migration.spec.ts b/packages/session/session-persistence-jsonl/tests/v2-system-migration.spec.ts
index 3c40b96b20..b8a7fad132 100644
--- a/packages/session/session-persistence-jsonl/tests/v2-system-migration.spec.ts
+++ b/packages/session/session-persistence-jsonl/tests/v2-system-migration.spec.ts
@@ -131,7 +131,6 @@ describe('V2 system prompts through current Session and JSONL persistence', () =
       const session = await restore(reader)
       expect(messages(session)).toEqual([human])
       expect(session.surface.nodes).toEqual([8, 3])
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(session.eventAt(SessionSeq(8))?.type).toBe('system/message')
     } finally {
       await reader.close()
@@ -208,7 +207,6 @@ describe('V2 system prompts through current Session and JSONL persistence', () =
       expect(session.firstLiveSeq).toBe(15)
       expect(session.surface.nodes).toEqual([4, 8])
       expect(messages(session)).toEqual([prompt('seed prompt'), { role: 'user', content: [{ type: 'text', text: 'summary' }] }])
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(session.ownEvents()).toEqual([prepared[14]])
     } finally {
       await reader.close()
@@ -229,9 +227,7 @@ describe('V2 system prompts through current Session and JSONL persistence', () =
       }, { surfaceOp: { op: 'replace', startSeq: SessionSeq(4), endSeq: SessionSeq(4) }, sourceEventSeqs: [SessionSeq(4)] })
       session.append('step/end', { turn: 2, step: 1 })
       session.append('turn/end', { turn: 2, reason: { kind: 'completed' } })
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expected = session.snapshotEvents()
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       await writer.append(session.snapshotEvents(session.firstLiveSeq))
       await writer.flush()
     } finally {
@@ -290,7 +286,6 @@ describe('V2 system prompts through current Session and JSONL persistence', () =
       }, { surfaceOp: 'append' })
       session.append('step/end', { turn: 1, step: 1 })
       session.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       await writer.append(session.snapshotEvents())
       await writer.flush()
     } finally {
@@ -299,7 +294,6 @@ describe('V2 system prompts through current Session and JSONL persistence', () =
     const reopened = await mount()
     const reader = await reopened.sessionPersistence.open(id, 'read')
     try {
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect((await reader.read()).events).toEqual(session.snapshotEvents())
       const restored = await restore(reader)
       expect(restored.surface.nodes).toEqual([2, 3, 4])
diff --git a/packages/session/session-telemetry-otel/tests/otel.spec.ts b/packages/session/session-telemetry-otel/tests/otel.spec.ts
index 35c2b89e11..b8919024bd 100644
--- a/packages/session/session-telemetry-otel/tests/otel.spec.ts
+++ b/packages/session/session-telemetry-otel/tests/otel.spec.ts
@@ -175,7 +175,6 @@ describe('OpenTelemetrySessionBackend wire', () => {
     const start = ledger.find(r => r.record.attributes?.some(a => a.key === 'event.type' && a.value.stringValue === 'turn/start'))
     expect(start).toBeDefined()
     expect(start?.record.severityNumber).toBe(9)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(BigInt(start!.record.timeUnixNano)).toBe(BigInt(session.snapshotEvents().find(event => event.type === 'turn/start')!.time) * 1_000_000n)
     expect(start?.record.attributes).toContainEqual({
       key: 'session.format_version',
@@ -241,7 +240,6 @@ describe('OpenTelemetrySessionBackend wire', () => {
       },
     })
     expect(eventTypes(captures)).not.toContain('manual')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(eventTypes(captures)).toEqual(session.snapshotEvents().map(event => event.type))
     expect(ops).toHaveLength(0)
   })
@@ -495,7 +493,6 @@ describe('OpenTelemetrySessionBackend wire', () => {
       session.append('turn/start', { turn: 1 })
       expect(captures).toEqual([])
       recordFeedback(session, 'explicit report')
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const submitted = session.snapshotEvents().map(event => event.type)
       await expect.poll(() => eventTypes(captures)).toEqual(submitted)
       session.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
@@ -521,7 +518,6 @@ describe('OpenTelemetrySessionBackend route and feedback', () => {
       session.append('turn/start', { turn: 1 })
       expect(captures).toEqual([])
       recordFeedback(session, 'explicit report')
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const expected = session.snapshotEvents().map(event => event.type)
       await expect.poll(() => eventTypes(captures)).toEqual(expected)
       session.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
@@ -539,7 +535,6 @@ describe('OpenTelemetrySessionBackend route and feedback', () => {
     await ctx.plugin(SessionStore)
     const donor = Session.create(SessionId('stored-feedback'))
     recordFeedback(donor, 'old feedback is not a submission')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const restored = ctx.sessions.create(donor.id, { seed: donor.snapshotEvents(), meta: donor.header })
     try {
       const first = await ctx.plugin(OpenTelemetrySessionBackend, { mode: SessionTelemetryMode.FEEDBACK_ONLY, exporter: { url } })
@@ -550,10 +545,8 @@ describe('OpenTelemetrySessionBackend route and feedback', () => {
         session.append('request/header', { header: { config: { provider, model: 'm' } }, reason: 'change' })
       }
       const child = ctx.sessions.fork(restored, undefined, SessionId('child'))
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const inherited = child.snapshotEvents().find(event => event.type === 'feedback/record')!
       ctx.emit('session/event', child, inherited)
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const opened = ctx.sessions.create(SessionId('opened'), { seed: donor.snapshotEvents() })
       ctx.emit('session/created', opened)
       await first.dispose()
@@ -588,7 +581,6 @@ describe('OpenTelemetrySessionBackend route and feedback', () => {
         expect(captures).toEqual([])
         const put = await ctx.messageFeedback.put(request)
         if (!put.ok) throw new Error('live put failed')
-        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         await expect.poll(() => eventTypes(captures)).toEqual(session.snapshotEvents().map(event => event.type))
         const throughPut = session.seq
         await ctx.messageFeedback.put({ ...request, ifVersion: put.value.version })
@@ -596,10 +588,8 @@ describe('OpenTelemetrySessionBackend route and feedback', () => {
         expect(session.seq).toBe(throughPut)
         const edit = await ctx.messageFeedback.put({ ...request, ifVersion: put.value.version, note: 'edited note' })
         if (!edit.ok) throw new Error('live note failed')
-        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         await expect.poll(() => eventTypes(captures)).toEqual(session.snapshotEvents().map(event => event.type))
         await ctx.messageFeedback.delete({ sessionId: session.id, messageId: message.id, ifVersion: edit.value.version })
-        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         await expect.poll(() => eventTypes(captures)).toEqual(session.snapshotEvents().map(event => event.type))
         const submitted = eventTypes(captures)
         const throughDelete = session.seq
@@ -622,7 +612,6 @@ describe('OpenTelemetrySessionBackend route and feedback', () => {
     const { ctx, fiber } = await boot(url)
     const session = Session.create(SessionId('cold-not-submitted'))
     const notify = async () => ctx.parallel('feedback/committed', {
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       meta: session.header, events: session.snapshotEvents(), inheritedEventCount: session.inheritedEventCount,
     })
     await notify()
@@ -634,7 +623,6 @@ describe('OpenTelemetrySessionBackend route and feedback', () => {
     child.append('feedback/message-delete', { sessionId: session.id, messageId: message.id })
     await ctx.parallel('feedback/committed', {
       meta: { ...session.header, id: SessionId('inherited-cold'), parentSession: session.id, isSeeded: true },
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       events: session.snapshotEvents(SessionLogOffset(0), SessionLogOffset(1)), inheritedEventCount: SessionLogOffset(1),
     })
     await fiber.dispose()
@@ -654,14 +642,12 @@ describe('OpenTelemetrySessionBackend route and feedback', () => {
       parent.append('request/header', { header: { config: { provider: 'mock', model: 'm' } }, reason: 'initial' })
       const message = createAssistantMessage({ content: [{ type: 'text', text: 'inherited answer' }], source: { provider: 'mock', model: 'm' } })
       parent.append('assistant/message', { message, stream: [], turn: 1, step: 1 }, { surfaceOp: 'append' })
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const child = Session.create(SessionId('cold-child'), parent.snapshotEvents(), {
         ...parent.header, id: SessionId('cold-child'), parentSession: parent.id, isSeeded: true,
       }, parent.seq)
       recordFeedback(child, 'child-owned stored feedback')
       const handle = await ctx.sessionPersistence.create(child.header, { inheritedEventCount: child.inheritedEventCount })
       try {
-        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         await handle.append(child.snapshotEvents())
       } finally {
         await handle.close()
@@ -709,7 +695,6 @@ describe('OpenTelemetrySessionBackend route and feedback', () => {
       session.append('assistant/message', { message, stream: [], turn: 1, step: 1 }, { surfaceOp: 'append' })
       const handle = await ctx.sessionPersistence.create(session.header)
       try {
-        // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
         await handle.append(session.snapshotEvents())
       } finally {
         await handle.close()
diff --git a/packages/session/session-telemetry/tests/redact.spec.ts b/packages/session/session-telemetry/tests/redact.spec.ts
index 7ecdc624a0..b563d9c469 100644
--- a/packages/session/session-telemetry/tests/redact.spec.ts
+++ b/packages/session/session-telemetry/tests/redact.spec.ts
@@ -72,7 +72,6 @@ describe('session-telemetry/record waterfall', () => {
     session.append('user/message', createUserMessage({
       content: [{ type: 'text', text: FIXTURE_SECRET }], source: { kind: 'user' },
     }), { surfaceOp: 'append' })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const logged = session.snapshotEvents()[0]!.data as { content: { text: string }[] }
     expect(logged.content[0]!.text).toBe(FIXTURE_SECRET)
   })
@@ -125,7 +124,6 @@ describe('session-telemetry/record waterfall', () => {
       content: [{ type: 'text', text: 'hi' }], source: { kind: 'user' },
     }), { surfaceOp: 'append' })
     expect(backend.records).toHaveLength(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toHaveLength(1)
   })
 })
diff --git a/packages/session/session-telemetry/tests/telemetry.spec.ts b/packages/session/session-telemetry/tests/telemetry.spec.ts
index 8a5b50bbe7..ac9ffdcfc0 100644
--- a/packages/session/session-telemetry/tests/telemetry.spec.ts
+++ b/packages/session/session-telemetry/tests/telemetry.spec.ts
@@ -128,13 +128,11 @@ describe('SessionTelemetryCoordinator capture', () => {
       'event.type': 'turn/start',
       'event.seq': 0,
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(start.time).toBe(session.snapshotEvents()[0]!.time)
     expect(start.severity).toBe('info')
     expect(message.attributes['event.seq']).toBe(1)
     // Deep-copy isolation: mutating the handed-off body never reaches the log.
     ;(message.body as { content: { text: string }[] }).content[0]!.text = 'tampered'
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const logged = session.snapshotEvents()[1] as SessionEvent<'user/message'>
     expect(logged.data.content[0]).toMatchObject({ text: 'hello' })
   })
@@ -246,7 +244,6 @@ describe('SessionTelemetryCoordinator on-demand capture', () => {
     const session = liveSession(ctx, 'on-demand-prefix')
     appendTurn(session)
     appendAssistantMessage(session, 1, 1, ['first'], 100)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const firstBoundary = session.snapshotEvents()[2]!.seq
     appendAssistantMessage(session, 1, 2, ['second'], 200)
     session.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
@@ -302,7 +299,6 @@ describe('SessionTelemetryCoordinator on-demand capture', () => {
       })
       const parent = liveSession(ctx, 'history-parent')
       appendTurn(parent)
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const child = ctx.sessions.create(SessionId('history-child'), { seed: [...parent.snapshotEvents()] })
       const boundary = child.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
       child.append('turn/start', { turn: 2 })
@@ -402,7 +398,6 @@ describe('SessionTelemetryCoordinator adoption', () => {
       inject: ['sessions'],
       apply: (inner: Context) => void new SessionTelemetryCoordinator(inner, backend),
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const child = ctx.sessions.prepare(SessionId('seeded'), { seed: [...parent.snapshotEvents()], meta: {} })
     child.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
     ctx.sessions.enter(child)
@@ -432,7 +427,6 @@ describe('SessionTelemetryCoordinator adoption', () => {
     // telemetry therefore receives a current-format object with the complete
     // migrated canonical seed.
     const resumed = ctx.sessions.prepare(SessionId('resumed'), {
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       seed: structuredClone(donor.snapshotEvents()) as SessionEvent[],
       meta: {
         version: SESSION_FORMAT_VERSION,
@@ -466,9 +460,7 @@ describe('SessionTelemetryCoordinator adoption', () => {
     const parent = liveSession(ctx, 'stitch-parent')
     appendTurn(parent)
     const child = ctx.sessions.create(SessionId('stitch-child'), {
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       seed: [...parent.snapshotEvents()],
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       inheritedEventCount: SessionLogOffset(parent.snapshotEvents().length),
       meta: { parentSession: SessionId('stitch-parent'), isSeeded: true },
     })
diff --git a/packages/session/session-title-all-prompts-llm/tests/provider.spec.ts b/packages/session/session-title-all-prompts-llm/tests/provider.spec.ts
index ef37a9d131..429f1f5bd3 100644
--- a/packages/session/session-title-all-prompts-llm/tests/provider.spec.ts
+++ b/packages/session/session-title-all-prompts-llm/tests/provider.spec.ts
@@ -53,7 +53,6 @@ describe('all-messages LLM title provider', () => {
     ctx.llm.registerAdapter(['current-route'], adapter)
     await ctx.plugin(providerPlugin, LLM_CONFIG)
     const session = ctx.sessions.create(SessionId('all-plugin'), {
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       seed: seeded.snapshotEvents(),
       inheritedEventCount: seeded.seq,
       meta: { parentSession: seeded.id, isSeeded: true },
diff --git a/packages/session/session-title-llm/tests/llm.spec.ts b/packages/session/session-title-llm/tests/llm.spec.ts
index bd9ce65dc4..240ddefa2b 100644
--- a/packages/session/session-title-llm/tests/llm.spec.ts
+++ b/packages/session/session-title-llm/tests/llm.spec.ts
@@ -126,7 +126,6 @@ describe('generateSessionTitleWithLlm', () => {
     const providerRequest = request(ctx)
     let requestWasLoggedAtDispatch = false
     const adapter = new RecordingAdapter(SCRIPT, () => {
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       requestWasLoggedAtDispatch = providerRequest.session.snapshotEvents()
         .some(event => event.type === 'session/title-llm-request')
     })
@@ -163,7 +162,6 @@ describe('generateSessionTitleWithLlm', () => {
     const prompt = options.messages[0]?.content[0]
     expect(prompt?.type === 'text' && prompt.text).toContain('first prompt')
     expect(prompt?.type === 'text' && prompt.text).toContain('第二个问题')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(providerRequest.session.snapshotEvents().findLast(event => event.type === 'session/title-llm-request')?.data)
       .toEqual({
         titleProvider: TITLE_PROVIDER,
@@ -195,7 +193,6 @@ describe('generateSessionTitleWithLlm', () => {
     await expect(generateSessionTitleWithLlm(ctx, config, oversized, [selected], TITLE_PROVIDER))
       .rejects.toThrow(/input.*bytes.*maxInputBytes/i)
     expect(adapter.requests).toEqual([])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(oversized.session.snapshotEvents().some(event => event.type === 'session/title-llm-request')).toBe(false)
 
     const withinLimit = resolveSessionTitleLlmConfig({ ...config, maxInputBytes: 1_000 })
@@ -264,7 +261,6 @@ describe('generateSessionTitleWithLlm', () => {
       providerRequest.messages,
       TITLE_PROVIDER,
     )).rejects.toMatchObject({ message, code })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(providerRequest.session.snapshotEvents().some(event => event.type === 'session/title-llm-request')).toBe(true)
   })
 
diff --git a/packages/session/session-title/tests/projection.spec.ts b/packages/session/session-title/tests/projection.spec.ts
index 90f6a207bb..df2b5f1f91 100644
--- a/packages/session/session-title/tests/projection.spec.ts
+++ b/packages/session/session-title/tests/projection.spec.ts
@@ -17,7 +17,6 @@ async function harness(withTitleService: boolean): Promise<{ ctx: Context; sessi
 }
 
 function appendTitle(session: Session, title: string): SessionSeqType {
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   const messageSeq = session.snapshotEvents().find(event =>
     event.type === 'user/message' && event.data.source.kind === 'user')?.seq
     ?? session.append('user/message', createUserMessage({
diff --git a/packages/session/session-title/tests/provider.spec.ts b/packages/session/session-title/tests/provider.spec.ts
index 2708d51e2c..d9632ea3b6 100644
--- a/packages/session/session-title/tests/provider.spec.ts
+++ b/packages/session/session-title/tests/provider.spec.ts
@@ -66,9 +66,7 @@ describe('SessionTitleService Provider lifecycle', () => {
 
     const child = ctx.sessions.fork(parent, undefined, SessionId('title-child'))
     expect(ctx.sessionTitle.get(child)).toEqual(ctx.sessionTitle.get(parent))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.snapshotEvents().find(event => event.type === 'session/title'))
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       .toEqual(parent.snapshotEvents().find(event => event.type === 'session/title'))
 
     const firstGenerate = vi.fn(async (request: SessionTitleProviderRequest) => ({
@@ -379,7 +377,6 @@ describe('SessionTitleService Provider lifecycle', () => {
     })))
     await settle()
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event => event.type === 'request/header')).toHaveLength(1)
     expect(requests).toHaveLength(2)
     expect(requests[1]).toMatchObject({
diff --git a/packages/session/session-title/tests/rename.spec.ts b/packages/session/session-title/tests/rename.spec.ts
index 706511d2e3..9654c18edc 100644
--- a/packages/session/session-title/tests/rename.spec.ts
+++ b/packages/session/session-title/tests/rename.spec.ts
@@ -46,7 +46,6 @@ describe('SessionTitleService.rename', () => {
       messageSeqs: [],
       source: { kind: 'user' },
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const event = session.snapshotEvents().findLast(item => item.type === 'session/title')
     expect(event?.data).toEqual({
       title: 'Hand picked name',
@@ -54,7 +53,6 @@ describe('SessionTitleService.rename', () => {
       source: { kind: 'user' },
     })
     // foldSessionTitle round-trips the third source kind.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldSessionTitle(session.snapshotEvents())?.source).toEqual({ kind: 'user' })
   })
 
@@ -166,7 +164,6 @@ describe('SessionTitleService.rename', () => {
     await settle()
     // The released provider result must not append over the user title, and
     // the swallowed abort must not surface as an unhandled rejection.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const latest = session.snapshotEvents().findLast(item => item.type === 'session/title')
     expect(latest?.data).toMatchObject({ title: 'User wins', source: { kind: 'user' } })
   })
diff --git a/packages/session/session-title/tests/service-contracts.spec.ts b/packages/session/session-title/tests/service-contracts.spec.ts
index c0b13910fe..c6e0dc93c3 100644
--- a/packages/session/session-title/tests/service-contracts.spec.ts
+++ b/packages/session/session-title/tests/service-contracts.spec.ts
@@ -171,7 +171,6 @@ describe('SessionTitleService configuration and refresh boundaries', () => {
     })
     const source = appendPrompt(seed, 'Create exactly one fallback title')
     seed.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const session = ctx.sessions.create(SessionId('fallback-concurrency'), { seed: seed.snapshotEvents() })
 
     const results = await Promise.all([
@@ -180,9 +179,7 @@ describe('SessionTitleService configuration and refresh boundaries', () => {
     ])
 
     expect(results[0]).toEqual(results[1])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event => event.type === 'session/title')).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().map(event => event.type)).toEqual([
       'turn/start',
       'user/message',
@@ -207,7 +204,6 @@ describe('SessionTitleService configuration and refresh boundaries', () => {
     })
 
     await expect(refresh).resolves.toMatchObject({ title: 'Already accepted' })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event => event.type === 'session/title')).toHaveLength(1)
   })
 
@@ -270,7 +266,6 @@ describe('SessionTitleService configuration and refresh boundaries', () => {
     await fiber.dispose()
     await settle()
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'session/title')).toBe(false)
     const inactiveError = await lifecycle.inactiveRefresh
     expect(inactiveError).toBeInstanceOf(Error)
@@ -290,7 +285,6 @@ describe('SessionTitleService configuration and refresh boundaries', () => {
     await Promise.resolve()
     await fiber.dispose()
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().some(event => event.type === 'session/title')).toBe(false)
     expect(warn).not.toHaveBeenCalled()
   })
diff --git a/packages/session/session-title/tests/session-title.spec.ts b/packages/session/session-title/tests/session-title.spec.ts
index b5cbf31c3c..69edbb84ff 100644
--- a/packages/session/session-title/tests/session-title.spec.ts
+++ b/packages/session/session-title/tests/session-title.spec.ts
@@ -53,7 +53,6 @@ describe('SessionTitleService', () => {
 
     await settleTitles()
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const titleEvent = session.snapshotEvents().findLast(event => event.type === 'session/title')
     expect(titleEvent).toMatchObject({
       type: 'session/title',
@@ -141,7 +140,6 @@ describe('SessionTitleService', () => {
 
     expect(first?.messageSeqs).toEqual([eligible.seq])
     expect(ctx.sessionTitle.get(session)).toEqual(first)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event => event.type === 'session/title')).toHaveLength(1)
   })
 
@@ -162,7 +160,6 @@ describe('SessionTitleService', () => {
       },
     })
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldSessionTitle(seed.snapshotEvents())).toEqual({
       title: 'Later',
       messageSeqs: [1, 4],
@@ -172,7 +169,6 @@ describe('SessionTitleService', () => {
         model: { provider: 'mock', model: 'title-model' },
       },
       eventSeq: 1,
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       updatedAt: seed.snapshotEvents()[1]?.time,
     })
   })
@@ -180,7 +176,6 @@ describe('SessionTitleService', () => {
   it('folds an empty or title-less log to undefined', () => {
     expect(foldSessionTitle([])).toBeUndefined()
     const empty = Session.create(SessionId('no-title'))
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(foldSessionTitle(empty.snapshotEvents())).toBeUndefined()
   })
 })
diff --git a/packages/shell/tool-bash/tests/integration.spec.ts b/packages/shell/tool-bash/tests/integration.spec.ts
index d561bed780..cf2a4e1d2e 100644
--- a/packages/shell/tool-bash/tests/integration.spec.ts
+++ b/packages/shell/tool-bash/tests/integration.spec.ts
@@ -58,7 +58,6 @@ function waitForIdle(ctx: Context, agent: Agent): Promise<void> {
 }
 
 function events(agent: Agent): readonly SessionEvent[] {
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return agent.session.snapshotEvents()
 }
 
diff --git a/packages/shell/tool-bash/tests/tools.spec.ts b/packages/shell/tool-bash/tests/tools.spec.ts
index b70b02691c..1dfbd27b81 100644
--- a/packages/shell/tool-bash/tests/tools.spec.ts
+++ b/packages/shell/tool-bash/tests/tools.spec.ts
@@ -631,7 +631,6 @@ describe('sandbox escalation through the generic task producer', () => {
     expect(prompted).not.toHaveBeenCalled()
 
     const malformed = sandboxAgent()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     ;(malformed.session.snapshotEvents() as unknown as Array<{ type: string; data: { mode: string }; seq: number }>).push({
       type: 'sandbox/mode',
       data: { mode: 'unknown-mode' },
diff --git a/packages/skill/tool-skill/tests/tool-skill.spec.ts b/packages/skill/tool-skill/tests/tool-skill.spec.ts
index 7fe649b1a8..603166de04 100644
--- a/packages/skill/tool-skill/tests/tool-skill.spec.ts
+++ b/packages/skill/tool-skill/tests/tool-skill.spec.ts
@@ -124,7 +124,6 @@ async function proposeStep(
 }
 
 function catalogMessages(session: Session): Extract<SessionEvent, { type: 'user/message' }>[] {
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return session.snapshotEvents().filter((event): event is Extract<SessionEvent, { type: 'user/message' }> => event.type === 'user/message'
     && event.data.source.kind === 'skill-catalog')
 }
diff --git a/packages/subagent/subagent-fork-in-process/tests/multi-subagent.spec.ts b/packages/subagent/subagent-fork-in-process/tests/multi-subagent.spec.ts
index 04238d479b..35c8af4df3 100644
--- a/packages/subagent/subagent-fork-in-process/tests/multi-subagent.spec.ts
+++ b/packages/subagent/subagent-fork-in-process/tests/multi-subagent.spec.ts
@@ -67,7 +67,6 @@ describe('multi-subagent coexistence (spawn + fork on one context)', () => {
     // Parent does one real turn first, so the fork has a completed turn to seed.
     parent.followup(createUserMessage({ content: [{ type: 'text', text: 'parent q1' }], source: { kind: 'user' } }))
     await parent.whenIdle()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const parentPrefixLen = parent.session.snapshotEvents().length
 
     // Delegate to a fresh spawn child.
@@ -89,7 +88,6 @@ describe('multi-subagent coexistence (spawn + fork on one context)', () => {
     expect(spawnChild.session.header.parentSession).toBe(parent.session.header.id)
     expect(forkChild.session.header.parentSession).toBe(parent.session.header.id)
     // The fork child inherited the parent's prefix; the spawn child did not.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(forkChild.session.snapshotEvents().slice(0, parentPrefixLen).some(e => e.type === 'user/message')).toBe(true)
 
     await spawnRun.dispose()
@@ -98,14 +96,12 @@ describe('multi-subagent coexistence (spawn + fork on one context)', () => {
     // The parent is unaffected and keeps working after both delegations.
     parent.followup(createUserMessage({ content: [{ type: 'text', text: 'parent q2' }], source: { kind: 'user' } }))
     await parent.whenIdle()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const lastParentMessage = parent.session.snapshotEvents().findLast(e => e.type === 'assistant/message')
     expect(lastParentMessage?.type === 'assistant/message' && text(lastParentMessage.data.message.content)).toBe('parent turn two')
     // The parent's OWN log never recorded the children's internal steps — its
     // only subagent-related entries would be tool/call+tool/result IF it had
     // used the tool, but here we called the service directly, so the parent log
     // is purely its own two turns.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(parent.session.snapshotEvents().filter(e => e.type === 'turn/end')).toHaveLength(2)
   })
 })
diff --git a/packages/subagent/subagent-fork-in-process/tests/subagent-fork-in-process.spec.ts b/packages/subagent/subagent-fork-in-process/tests/subagent-fork-in-process.spec.ts
index 2e557bebb0..6f7080cd31 100644
--- a/packages/subagent/subagent-fork-in-process/tests/subagent-fork-in-process.spec.ts
+++ b/packages/subagent/subagent-fork-in-process/tests/subagent-fork-in-process.spec.ts
@@ -84,7 +84,6 @@ describe('dsh-subagent-fork-in-process', () => {
     expect(text(result.output)).toBe('fresh child')
     const child = ctx.agents.get(run.id)!
     // Only the child's own turn — no seeded parent turns.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().filter(e => e.type === 'turn/end')).toHaveLength(1)
     expect(child.session.header.isSeeded).toBe(false)
     expect(child.session.inheritedEventCount).toBe(0)
@@ -97,7 +96,6 @@ describe('dsh-subagent-fork-in-process', () => {
     await parent.whenIdle()
     parent.followup(createUserMessage({ content: [{ type: 'text', text: 'q2' }], source: { kind: 'user' } }))
     await parent.whenIdle()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const parentPrefixLen = parent.session.snapshotEvents().length
 
     const run = await start(ctx, 'fork', { prompt: [{ type: 'text', text: 'child q' }], parent })
@@ -105,9 +103,7 @@ describe('dsh-subagent-fork-in-process', () => {
     const child = ctx.agents.get(run.id)!
     expect(child.session.header.isSeeded).toBe(true)
     expect(child.session.inheritedEventCount).toBe(parentPrefixLen)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().slice(0, parentPrefixLen).at(-1)?.type).toBe('turn/end')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().slice(0, parentPrefixLen).filter(e => e.type === 'turn/end')).toHaveLength(2)
     await run.dispose()
   })
@@ -116,7 +112,6 @@ describe('dsh-subagent-fork-in-process', () => {
     const { ctx, parent } = await setup([textResponse('parent answer'), textResponse('child answer')])
     parent.followup(createUserMessage({ content: [{ type: 'text', text: 'parent question' }], source: { kind: 'user' } }))
     await parent.whenIdle()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const parentPrefixLen = parent.session.snapshotEvents().length
 
     const run = await start(ctx, 'fork', { prompt: [{ type: 'text', text: 'child question' }], parent })
@@ -126,10 +121,8 @@ describe('dsh-subagent-fork-in-process', () => {
 
     const child = ctx.agents.get(run.id)!
     // The child's log STARTS with the parent's prefix (seeded), then its own turn.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().length).toBeGreaterThan(parentPrefixLen)
     // The seeded prefix carried the parent's user message.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const seededUser = child.session.snapshotEvents().slice(0, parentPrefixLen).find(e => e.type === 'user/message')
     expect(seededUser).toBeDefined()
     // Lineage stamped.
@@ -160,7 +153,6 @@ describe('dsh-subagent-fork-in-process', () => {
 
     const child = ctx.agents.get(run.id)!
     // The child's seed has exactly the ONE completed parent turn (the open one excluded).
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const seedTurnEnds = child.session.snapshotEvents().filter(e => e.type === 'turn/end')
     // 1 from the seeded parent turn + 1 from the child's own completed turn.
     expect(seedTurnEnds.length).toBe(2)
diff --git a/packages/subagent/subagent-in-process-driver/tests/inheritance.spec.ts b/packages/subagent/subagent-in-process-driver/tests/inheritance.spec.ts
index 72d3426a8a..d3fc067a5a 100644
--- a/packages/subagent/subagent-in-process-driver/tests/inheritance.spec.ts
+++ b/packages/subagent/subagent-in-process-driver/tests/inheritance.spec.ts
@@ -69,7 +69,6 @@ function spawnRequest(parent: Agent) {
 }
 
 function toolResultTexts(agent: Agent): string[] {
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   return agent.session.snapshotEvents()
     .filter((event): event is SessionEvent<'tool/result'> => event.type === 'tool/result')
     .map(event => event.data.message.content
@@ -87,7 +86,6 @@ describe('in-process policy inheritance', () => {
     setSandboxMode(parent.session, 'read-only')
     // No parent approval override: the child pin must not depend on one.
     expect(ctx.approval.overrideOf(parent.session)).toBeUndefined()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const parentLogLength = parent.session.snapshotEvents().length
     script.push(
       toolCallResponse('write', 'write', { file_path: blocked, content: 'escaped' }),
@@ -102,7 +100,6 @@ describe('in-process policy inheritance', () => {
       await expect(readFile(blocked, 'utf8')).rejects.toMatchObject({ code: 'ENOENT' })
       expect(toolResultTexts(child).join('\n')).toContain(READ_ONLY_DENIAL)
       expect(result.stopReason).toBe('completed')
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(child.session.snapshotEvents().slice(0, 2)).toMatchObject([
         { type: 'sandbox/mode', seq: 0, data: { mode: 'read-only', source: 'delegation' } },
         { type: 'approval/policy', seq: 1, data: { policy: 'never', source: 'delegation' } },
@@ -112,15 +109,12 @@ describe('in-process policy inheritance', () => {
       expect(child.session.inheritedEventCount).toBe(0)
       expect(ctx.sandboxPolicy.overrideOf(child.session)).toBe('read-only')
       expect(ctx.approval.overrideOf(child.session)).toBe('never')
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const request = child.session.snapshotEvents().find(
         (event): event is SessionEvent<'request/header'> => event.type === 'request/header',
       )
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const systemNode = child.session.snapshotEvents().find(
         (event): event is SessionEvent<'system/message'> => event.type === 'system/message',
       )
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const runtimeContext = child.session.snapshotEvents().find(
         (event): event is SessionEvent<'user/message'> => event.type === 'user/message'
           && event.data.source.kind === 'plugin'
@@ -148,7 +142,6 @@ describe('in-process policy inheritance', () => {
         .join('\n')
       expect(systemText).not.toContain('Approval prompts are disabled')
       expect(systemText).not.toContain('You are a delegated subagent')
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(parent.session.snapshotEvents()).toHaveLength(parentLogLength)
     } finally {
       await run.dispose()
@@ -160,7 +153,6 @@ describe('in-process policy inheritance', () => {
     const { ctx, parent } = await setupWalled(script)
     const blocked = join(workspace, 'fork-blocked.txt')
     setSandboxMode(parent.session, 'workspace-write')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const seed = parent.session.snapshotEvents()
     setSandboxMode(parent.session, 'read-only')
     script.push(
@@ -177,7 +169,6 @@ describe('in-process policy inheritance', () => {
       expect(child.session.inheritedEventCount).toBe(1)
       expect(child.session.firstLiveSeq).toBe(seed.length)
       // seq 1 is the constructor's end-seed marker.
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(child.session.snapshotEvents().filter(event => event.type === 'sandbox/mode')).toMatchObject([
         { seq: 0, data: { mode: 'workspace-write' } },
         { seq: 2, data: { mode: 'read-only', source: 'delegation' } },
@@ -224,9 +215,7 @@ describe('in-process policy inheritance', () => {
       await run.result
       const child = run.localAgent as Agent
       expect(await readFile(allowed, 'utf8')).toBe('fine')
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(child.session.snapshotEvents().some(event => event.type === 'sandbox/mode')).toBe(false)
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(child.session.snapshotEvents().filter(event => event.type === 'approval/policy')).toMatchObject([
         { seq: 0, data: { policy: 'never', source: 'delegation' } },
       ])
@@ -266,11 +255,9 @@ describe('in-process policy inheritance', () => {
       expect(consulted).toBe(false)
       expect(toolResultTexts(child).join('\n'))
         .toContain('the user rejected escalating this operation to "workspace-write"')
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const asked = child.session.snapshotEvents().find(
         (event): event is SessionEvent<'approval/asked'> => event.type === 'approval/asked',
       )
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const decided = child.session.snapshotEvents().find(
         (event): event is SessionEvent<'approval/decided'> => event.type === 'approval/decided',
       )
diff --git a/packages/subagent/subagent-in-process-driver/tests/preset-inheritance.spec.ts b/packages/subagent/subagent-in-process-driver/tests/preset-inheritance.spec.ts
index e4ec2605b0..106b9e3eaa 100644
--- a/packages/subagent/subagent-in-process-driver/tests/preset-inheritance.spec.ts
+++ b/packages/subagent/subagent-in-process-driver/tests/preset-inheritance.spec.ts
@@ -85,7 +85,6 @@ describe('a child agent composed in-process', () => {
     const run = await startInProcessRun(spawnRequest(parent), {})
     await run.result
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(run.localAgent?.session.snapshotEvents().some(event =>
       event.type === 'system/message'
       && JSON.stringify(event.data.message.content).includes('section for preset_only'))).toBe(true)
diff --git a/packages/subagent/subagent-in-process-driver/tests/structured.spec.ts b/packages/subagent/subagent-in-process-driver/tests/structured.spec.ts
index 70398a2f9f..fa4bfdb22b 100644
--- a/packages/subagent/subagent-in-process-driver/tests/structured.spec.ts
+++ b/packages/subagent/subagent-in-process-driver/tests/structured.spec.ts
@@ -196,7 +196,6 @@ describe('in-process structured output', () => {
     expect(result.structured).toEqual({ answer: 5 })
     expect(sideEffectRan).toBe(false)
     const child = ctx.agents.get(run.id)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const sideEffectResult = child?.session.snapshotEvents().find(event =>
       event.type === 'tool/result' && event.data.message.source.callId === 'c2')
     expect(sideEffectResult?.type === 'tool/result' && sideEffectResult.data.message.content[0].isError).toBe(true)
@@ -241,7 +240,6 @@ describe('in-process structured output', () => {
     expect(result.stopReason).toBe('completed')
     // The child's log carries the isError tool/result for the invalid call.
     const child = ctx.agents.get(run.id)!
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const results = child.session.snapshotEvents().filter(e => e.type === 'tool/result')
     expect(results.length).toBe(2)
     expect(results[0]!.data.message.content[0].isError).toBe(true)
@@ -260,7 +258,6 @@ describe('in-process structured output', () => {
     // Exactly one model request and one caller-supplied user message: no nudge turn exists.
     expect(adapter.requests.length).toBe(1)
     const child = ctx.agents.get(run.id)!
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().filter(e => e.type === 'user/message' && e.data.source.kind !== 'plugin').length).toBe(1)
     await run.dispose()
   })
@@ -326,7 +323,6 @@ describe('in-process structured output', () => {
     expect(result.stopReason).toBe('error')
     // ...the logged tool result is the blocked isError with the feedback...
     const child = ctx.agents.get(run.id)!
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const results = child.session.snapshotEvents().filter(e => e.type === 'tool/result')
     expect(results[0]!.data.message.content[0].isError).toBe(true)
     expect(JSON.stringify(results[0]!.data.message.content)).toContain('capture rejected by hook')
@@ -372,7 +368,6 @@ describe('in-process structured output', () => {
     expect(result.structured).toBeUndefined()
     expect(result.stopReason).toBe('error')
     const child = ctx.agents.get(run.id)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const captureResult = child?.session.snapshotEvents().find(event =>
       event.type === 'tool/result' && event.data.message.source.callId === 'c1')
     expect(captureResult?.type === 'tool/result' && captureResult.data.message.content[0].isError).toBe(true)
@@ -445,7 +440,6 @@ describe('in-process structured output', () => {
     expect(result.stopReason).toBe('error')
     expect(adapter.requests).toHaveLength(2)
     const child = ctx.agents.get(run.id)!
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const outer = child.session.snapshotEvents().find(event =>
       event.type === 'tool/result' && event.data.message.source.callId === ToolCallId('c1'))
     expect(outer?.type === 'tool/result' && outer.data.message.content[0].isError).toBe(true)
diff --git a/packages/subagent/subagent-in-process-driver/tests/subagent-in-process-driver.spec.ts b/packages/subagent/subagent-in-process-driver/tests/subagent-in-process-driver.spec.ts
index e274ac7cb4..d11fa73b05 100644
--- a/packages/subagent/subagent-in-process-driver/tests/subagent-in-process-driver.spec.ts
+++ b/packages/subagent/subagent-in-process-driver/tests/subagent-in-process-driver.spec.ts
@@ -150,7 +150,6 @@ describe('startInProcessRun', () => {
     let injected = false
     ctx.on('session/flush', (session) => {
       if (injected || session.header.parentSession === undefined) return
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const lastEnd = session.snapshotEvents().findLast(event => event.type === 'turn/end')
       if (lastEnd?.type !== 'turn/end' || lastEnd.data.reason.kind !== 'max-tokens') return
       injected = true
@@ -165,7 +164,6 @@ describe('startInProcessRun', () => {
     const child = ctx.agents.get(run.id)!
 
     expect(injected).toBe(false)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().findLast(event => event.type === 'turn/end'))
       .toMatchObject({ data: { reason: { kind: 'max-tokens' } } })
     expect(result.stopReason).toBe('max-tokens')
@@ -201,7 +199,6 @@ describe('startInProcessRun', () => {
     const { ctx, parent } = await setup([textResponse('parent answer'), textResponse('child answer')])
     parent.followup(createUserMessage({ content: [{ type: 'text', text: 'parent question' }], source: { kind: 'user' } }))
     await parent.whenIdle()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const seed = parent.session.snapshotEvents()
     const run = await startInProcessRun(request(parent), { seed })
     const result = await run.result
@@ -209,13 +206,11 @@ describe('startInProcessRun', () => {
     const child = ctx.agents.get(run.id)!
     expect(child.session.header.isSeeded).toBe(true)
     expect(child.session.inheritedEventCount).toBe(seed.length)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().slice(0, seed.length)).toEqual(seed)
     // The seeded `system/message` stays surface node 0: the child renders the
     // same prompt, so its loop appends no second system node.
     const seededSystem = seed.find(event => event.type === 'system/message')
     expect(seededSystem).toBeDefined()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().filter(event => event.type === 'system/message')).toHaveLength(1)
     expect(child.session.surface.nodes[0]).toBe(seededSystem?.seq)
     expect(child.session.deriveMessages()[0]).toEqual(parent.session.deriveMessages()[0])
@@ -226,7 +221,6 @@ describe('startInProcessRun', () => {
     const { ctx, parent, adapter } = await setup([textResponse('parent answer'), textResponse('child answer')])
     parent.followup(createUserMessage({ content: [{ type: 'text', text: 'parent question' }], source: { kind: 'user' } }))
     await parent.whenIdle()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const seed = parent.session.snapshotEvents()
     const seededSystem = seed.find(event => event.type === 'system/message')
     if (seededSystem === undefined) throw new Error('the parent log lacks a system node')
@@ -235,7 +229,6 @@ describe('startInProcessRun', () => {
     const run = await startInProcessRun(request(parent), { seed })
     await run.result
     const child = ctx.agents.get(run.id)!
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const systemNodes = child.session.snapshotEvents().filter(event => event.type === 'system/message')
     expect(systemNodes.map(event => event.seq)).toEqual([seededSystem.seq, systemNodes[1]?.seq])
     expect(systemNodes[1]?.surfaceOp).toEqual({ op: 'replace', startSeq: seededSystem.seq, endSeq: seededSystem.seq })
@@ -367,7 +360,6 @@ describe('startInProcessRun', () => {
     })
     expect(adapter.requests[0]?.signal?.reason).toEqual({ kind: 'parent' })
     const child = parent.ctx.agents.get(signalled.id)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const turnEnd = child?.session.snapshotEvents().findLast(event => event.type === 'turn/end')
     expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason).toEqual({ kind: 'aborted', reason: { kind: 'parent' } })
     await signalled.dispose()
diff --git a/packages/subagent/subagent-spawn-in-process/tests/spawn-in-process.e2e.ts b/packages/subagent/subagent-spawn-in-process/tests/spawn-in-process.e2e.ts
index c031772384..3e764070f7 100644
--- a/packages/subagent/subagent-spawn-in-process/tests/spawn-in-process.e2e.ts
+++ b/packages/subagent/subagent-spawn-in-process/tests/spawn-in-process.e2e.ts
@@ -38,7 +38,6 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('spawn backend with-key smoke', (
 
     // The parent's log records the subagent tool/call + its result (not the
     // child's internal steps).
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const events = parent.session.snapshotEvents()
     const subagentCalls = events.filter(e => e.type === 'tool/call' && e.data.name === 'subagent')
     expect(subagentCalls.length).toBeGreaterThan(0)
diff --git a/packages/subagent/subagent-spawn-in-process/tests/subagent-spawn-in-process.spec.ts b/packages/subagent/subagent-spawn-in-process/tests/subagent-spawn-in-process.spec.ts
index 957496e492..b678f5c263 100644
--- a/packages/subagent/subagent-spawn-in-process/tests/subagent-spawn-in-process.spec.ts
+++ b/packages/subagent/subagent-spawn-in-process/tests/subagent-spawn-in-process.spec.ts
@@ -118,7 +118,6 @@ describe('dsh-subagent-spawn-in-process', () => {
     const { ctx, parent } = await setup([textResponse('parent turn'), textResponse('child sees nothing')])
     parent.followup(createUserMessage({ content: [{ type: 'text', text: 'parent prompt' }], source: { kind: 'user' } }))
     await parent.whenIdle()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const parentEventCount = parent.session.snapshotEvents().length
     expect(parentEventCount).toBeGreaterThan(0)
 
@@ -126,7 +125,6 @@ describe('dsh-subagent-spawn-in-process', () => {
     await run.result
     const child = ctx.agents.get(run.id)!
     // The child's first user/message is its OWN prompt, not the parent's history.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const firstUser = child.session.snapshotEvents().find(e => e.type === 'user/message')
     expect(firstUser).toBeDefined()
     await run.dispose()
@@ -441,7 +439,6 @@ describe('dsh-subagent-spawn-in-process', () => {
       expect((childRequest.tools ?? []).map(t => t.name)).not.toContain('forbidden_tool')
       // …and the attempted call executed as UNKNOWN_TOOL (visible in the log).
       const child = ctx.agents.get(run.id)!
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       const toolResult = child.session.snapshotEvents().find(e => e.type === 'tool/result')!
       expect(JSON.stringify(toolResult.data)).toContain('unknown tool')
       await run.dispose()
diff --git a/packages/subagent/subagent/tests/continuation.spec.ts b/packages/subagent/subagent/tests/continuation.spec.ts
index ecaa72a347..f2bbd16ef5 100644
--- a/packages/subagent/subagent/tests/continuation.spec.ts
+++ b/packages/subagent/subagent/tests/continuation.spec.ts
@@ -258,7 +258,6 @@ describe('SubagentRuntime.startContinuable', () => {
     ctx.on('agent/inbox/inserted', ({ agent, message }) => {
       // Acceptance is the boundary `startContinuable` resolves at, so observe
       // the log state exactly there rather than after later microtasks.
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       enqueued.push({ id: message.id, loggedYet: hasUserText(agent.session.snapshotEvents(), 'child task') })
     })
 
@@ -451,7 +450,6 @@ describe('SubagentRuntime.startContinuable', () => {
     })).rejects.toBe(catalogFailure)
 
     await vi.waitFor(() => { expect(ctx.agents.get(childId)).toBeUndefined() })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(parent.session.snapshotEvents().filter(event => event.type === 'subagent/catalog')).toEqual([])
   })
 
@@ -531,7 +529,6 @@ describe('SubagentRuntime.startContinuable', () => {
       expect(found).toBeDefined()
       return found!
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const descriptor = child.session.snapshotEvents().find(event => event.type === 'subagent/descriptor')
 
     expect(descriptor?.data).toEqual({
@@ -567,7 +564,6 @@ describe('SubagentRuntime.startContinuable', () => {
       return found!
     })
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().find(event => event.type === 'subagent/descriptor')?.data)
       .toEqual({
         version: SUBAGENT_DESCRIPTOR_VERSION,
@@ -1159,7 +1155,6 @@ describe('continuable durability and teardown', () => {
     child.followup(createUserMessage({ content: message('accepted during flush'), source: { kind: 'user' } }))
     await vi.waitFor(() => {
       expect(adapter.requests).toHaveLength(2)
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(hasAssistantText(child.session.snapshotEvents(), 'late answer')).toBe(true)
     })
     await child.whenIdle()
@@ -1887,7 +1882,6 @@ describe('continuable review regressions', () => {
     const started = await ctx.subagents.startContinuable(startSpec(parent))
     await vi.waitFor(() => { expect(adapter.requests).toHaveLength(1) })
     const child = ctx.agents.get(started.childId)!
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const before = child.session.snapshotEvents().length
 
     const controller = new AbortController()
@@ -2349,7 +2343,6 @@ describe('continuable review regressions', () => {
 
 /** Every settlement notice this agent received, in order, as flat text. */
 function settlementNotices(agent: Agent): { sender: string; text: string; summary: string }[] {
-  // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   const logged = agent.session.snapshotEvents().flatMap(event => event.type === 'user/message' ? [event.data] : [])
   return [...logged, ...agent.inbox.nextStep, ...agent.inbox.nextTurn].flatMap((message) => {
     if (message.source.kind !== 'subagent-settled') return []
@@ -2412,7 +2405,6 @@ describe('continuable adjacent-Agent delivery', () => {
     await vi.waitFor(() => {
       expect(adapter.requests.filter(request => request.sessionId === parent.id)).toHaveLength(1)
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const delivered = parent.session.snapshotEvents().flatMap(event => event.type === 'user/message'
       && event.data.source.kind === 'agent-message' ? [event.data] : [])[0]
     expect(delivered?.id).toBe(messageId)
@@ -2707,7 +2699,6 @@ describe('continuable settlement delivery', () => {
 
     // Turn 1 closed cleanly and no later turn opened, so the cancelled queue is
     // the only record that this epoch was cut short.
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(hasUserText(child.session.snapshotEvents(), 'never runs')).toBe(false)
     await vi.waitFor(() => { expect(settlementNotices(parent)).toHaveLength(1) })
     expect(settlementNotices(parent)[0]!.text).toBe(
@@ -2876,9 +2867,7 @@ describe('continuable settlement delivery', () => {
       `Background subagent ${started.childId} was stopped before it finished.`
       + '\nIt left no closing message.',
     )
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(parent.session.snapshotEvents().some(event => event.type === 'agent/inbox/spliced')).toBe(true)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(parent.session.snapshotEvents().some(event => event.type === 'turn/start')).toBe(false)
     expect(parent.status).toBe('idle')
   })
@@ -2895,7 +2884,6 @@ describe('continuable settlement delivery', () => {
     await drained
 
     expect(settlementNotices(parent)).toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(parent.session.snapshotEvents().some(event => event.type === 'turn/start')).toBe(false)
   })
 
diff --git a/packages/subagent/tool-subagent/tests/model-selection-settings.spec.ts b/packages/subagent/tool-subagent/tests/model-selection-settings.spec.ts
index 2af3149716..f5921a3fab 100644
--- a/packages/subagent/tool-subagent/tests/model-selection-settings.spec.ts
+++ b/packages/subagent/tool-subagent/tests/model-selection-settings.spec.ts
@@ -347,7 +347,6 @@ describe('SubagentModelSelectionConfig', () => {
 
     const enabledSeed = Session.create(SessionId('enabled-seed'))
     enabledSeed.append('subagent/model-selection-policy', { allowedModels: ALLOWED_MODELS })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const resumedEnabled = await createAgent(ctx, 'resumed-enabled', { seed: enabledSeed.snapshotEvents() })
     expect(selectable(ctx, resumedEnabled)).toBe(true)
 
@@ -360,7 +359,6 @@ describe('SubagentModelSelectionConfig', () => {
     expect(selectable(ctx, resumedEmpty)).toBe(false)
     expect(subagentModelSelectionPolicy(ctx.sessionProjections, resumedEmpty.session)).toBeUndefined()
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const resumedDisabled = await createAgent(ctx, 'resumed-disabled', { seed: oldSeed.snapshotEvents() })
     expect(selectable(ctx, resumedDisabled)).toBe(false)
     expect(subagentModelSelectionPolicy(ctx.sessionProjections, resumedDisabled.session)).toBeUndefined()
diff --git a/packages/terminal/terminal-bash/tests/index.spec.ts b/packages/terminal/terminal-bash/tests/index.spec.ts
index 78216805a3..af707d8269 100644
--- a/packages/terminal/terminal-bash/tests/index.spec.ts
+++ b/packages/terminal/terminal-bash/tests/index.spec.ts
@@ -618,7 +618,6 @@ describe('terminal-bash plugin shape', () => {
     expect(() => { setSandboxMode(session, 'read-only') }).toThrow(
       'cannot change sandbox mode from "danger-full-access" to "read-only" while persistent terminal sessions are open or being created; wait for creation to settle and close them first',
     )
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event => event.type === 'sandbox/mode')).toHaveLength(1)
 
     const replacementFiber = await registerStubLocalBackend(ctx, () => stubLocalSession())
@@ -629,7 +628,6 @@ describe('terminal-bash plugin shape', () => {
     await ctx.terminals.kill(owner, created.sessionId)
     await ctx.terminals.kill(owner, second.sessionId)
     expect(() => { setSandboxMode(session, 'read-only') }).not.toThrow()
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event => event.type === 'sandbox/mode')).toHaveLength(2)
   })
 
diff --git a/packages/test-support/agent-loop-testkit/tests/agent-loop-testkit.spec.ts b/packages/test-support/agent-loop-testkit/tests/agent-loop-testkit.spec.ts
index f65454023a..f4235aad18 100644
--- a/packages/test-support/agent-loop-testkit/tests/agent-loop-testkit.spec.ts
+++ b/packages/test-support/agent-loop-testkit/tests/agent-loop-testkit.spec.ts
@@ -96,7 +96,6 @@ describe('dsh-agent-loop-testkit', () => {
       { id: step.id, turn: 3 },
       { id: turn.id, turn: 3 },
     ])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().map(event => event.type)).toEqual([
       'agent/inbox/spliced',
       'agent/inbox/spliced',
diff --git a/packages/test-support/session-snapshot/tests/fixtures/workspace-context-compaction.ts b/packages/test-support/session-snapshot/tests/fixtures/workspace-context-compaction.ts
index 31292f374c..f80929880d 100644
--- a/packages/test-support/session-snapshot/tests/fixtures/workspace-context-compaction.ts
+++ b/packages/test-support/session-snapshot/tests/fixtures/workspace-context-compaction.ts
@@ -19,13 +19,11 @@ export function apply(ctx: Context): void {
       || exec.arguments.file_path !== 'nested/task.txt') return downstream
     const agent = exec.agent
     const baseline = agent.session.surface.nodes
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       .map(seq => agent.session.snapshotEvents()[seq])
       .find(event => event?.type === 'user/message'
         && event.data.source.kind === 'agent-instructions'
         && event.data.source.baseline === true)
     if (baseline === undefined) throw new Error('workspace baseline missing before snapshot compaction')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const openTurn = agent.session.snapshotEvents().findLast(event => event.type === 'turn/start')
     if (openTurn?.type !== 'turn/start') throw new Error('workspace snapshot compaction has no open turn')
     const compactionId = CompactionId('workspace-context-fixture')
diff --git a/packages/todo/tool-todo/tests/integration.spec.ts b/packages/todo/tool-todo/tests/integration.spec.ts
index cde02c8482..3384372a65 100644
--- a/packages/todo/tool-todo/tests/integration.spec.ts
+++ b/packages/todo/tool-todo/tests/integration.spec.ts
@@ -63,7 +63,6 @@ describe('todo_write tool through the agent loop', () => {
     agent.followup(createUserMessage({ content: [{ type: 'text', text: 'plan a two-step task' }], source: { kind: 'user' } }))
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const log = agent.session.snapshotEvents()
     expect(findEvent(log, 'tool/call').data.name).toBe('todo_write')
     expect(findEvent(log, 'tool/result').data.message.content[0].isError).toBe(false)
@@ -92,10 +91,8 @@ describe('todo_write tool through the agent loop', () => {
     agent.followup(createUserMessage({ content: [{ type: 'text', text: 'plan then update' }], source: { kind: 'user' } }))
     await waitForIdle(ctx, agent)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const todoEvents = agent.session.snapshotEvents().filter(e => e.type === 'todo/write')
     expect(todoEvents).toHaveLength(2)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(findEvent(agent.session.snapshotEvents(), 'todo/write', 'last').data.todos).toEqual([
       { content: 'step one', status: 'completed' },
       { content: 'step two', status: 'in_progress' },
diff --git a/packages/todo/tool-todo/tests/invariant.spec.ts b/packages/todo/tool-todo/tests/invariant.spec.ts
index 0501982bdb..4b41b6a301 100644
--- a/packages/todo/tool-todo/tests/invariant.spec.ts
+++ b/packages/todo/tool-todo/tests/invariant.spec.ts
@@ -66,11 +66,9 @@ describe('todo snapshot invariants', () => {
     const session = ctx.sessions.create()
     session.append('turn/start', { turn: 1 })
     session.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const before = session.snapshotEvents()
 
     expect(() => session.append('todo/write', { todos: [] })).toThrow(/outside any open turn/)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual(before)
   })
 
diff --git a/packages/todo/tool-todo/tests/loader-composition.spec.ts b/packages/todo/tool-todo/tests/loader-composition.spec.ts
index 039ba4dc1f..b99909fa2a 100644
--- a/packages/todo/tool-todo/tests/loader-composition.spec.ts
+++ b/packages/todo/tool-todo/tests/loader-composition.spec.ts
@@ -112,7 +112,6 @@ describe('tool-todo real Loader composition through cordis.yml', () => {
     })
     expect(result.isError).toBe(true)
     expect(resultText(result)).toContain('at most one task may be in_progress')
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(owner.session.snapshotEvents().some(e => e.type === 'todo/write')).toBe(false)
   }, 30_000)
 
@@ -130,7 +129,6 @@ describe('tool-todo real Loader composition through cordis.yml', () => {
       agent: owner,
     })
     expect(result.isError).toBe(false)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(owner.session.snapshotEvents().findLast(e => e.type === 'todo/write')?.data.todos).toEqual(PARALLEL_TODOS)
   }, 30_000)
 
diff --git a/packages/todo/tool-todo/tests/tool-todo.spec.ts b/packages/todo/tool-todo/tests/tool-todo.spec.ts
index b045128eac..a3d60f5b63 100644
--- a/packages/todo/tool-todo/tests/tool-todo.spec.ts
+++ b/packages/todo/tool-todo/tests/tool-todo.spec.ts
@@ -82,7 +82,6 @@ describe('dsh-tool-todo', () => {
     })
     expect(text(result)).toContain('1 pending, 1 in progress, 0 completed')
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const event = agent.session.snapshotEvents().findLast(e => e.type === 'todo/write')!
     expect(event.data.todos).toEqual(todos)
   })
@@ -93,7 +92,6 @@ describe('dsh-tool-todo', () => {
     const result = await callTodo(ctx, { todos: [{ content: '  plan the work  ', status: 'pending' }] }, { agent })
     expect(result.isError).toBe(false)
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const event = agent.session.snapshotEvents().findLast(e => e.type === 'todo/write')!
     expect(event.data.todos).toEqual([{ content: 'plan the work', status: 'pending' }])
   })
@@ -107,7 +105,6 @@ describe('dsh-tool-todo', () => {
       { content: 'b', status: 'in_progress' },
     ] }, { agent })
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const current = agent.session.snapshotEvents().findLast(e => e.type === 'todo/write')!.data.todos
     expect(current).toEqual([
       { content: 'a', status: 'completed' },
@@ -142,7 +139,6 @@ describe('dsh-tool-todo', () => {
       todos,
       counts: { pending: 1, inProgress: 2, completed: 0 },
     })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(agent.session.snapshotEvents().findLast(e => e.type === 'todo/write')!.data.todos).toEqual(todos)
   })
 
@@ -159,7 +155,6 @@ describe('dsh-tool-todo', () => {
       expect(result.isError).toBe(true)
       expect(text(result)).toContain('at most one task may be in_progress')
       // A rejected call must not reach the durable log.
-      // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
       expect(agent.session.snapshotEvents().some(e => e.type === 'todo/write')).toBe(false)
     })
 
@@ -252,7 +247,6 @@ describe('todo/write event', () => {
     ]
     session.append('todo/write', { todos })
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const event = session.snapshotEvents().findLast(e => e.type === 'todo/write')!
     expect(event.type).toBe('todo/write')
     expect(event.data.todos).toEqual(todos)
@@ -274,7 +268,6 @@ describe('todo/write event', () => {
       { content: 'second', status: 'in_progress' },
     ] })
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const current = session.snapshotEvents().findLast(e => e.type === 'todo/write')!.data.todos
     expect(current).toEqual([
       { content: 'first', status: 'completed' },
@@ -300,13 +293,10 @@ describe('todo/write event', () => {
     original.append('turn/start', { turn: 1 })
     original.append('todo/write', { todos: [{ content: 'only', status: 'completed' }] })
     original.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const replayed = Session.create(SessionId('t4-replay'), original.snapshotEvents())
 
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(replayed.snapshotEvents().findLast(e => e.type === 'todo/write')!.data.todos)
       .toEqual([{ content: 'only', status: 'completed' }])
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(replayed.snapshotEvents(SessionLogOffset(0), original.seq)).toEqual(original.snapshotEvents())
     expect(replayed.firstLiveSeq).toBe(original.seq)
   })
diff --git a/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts b/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts
index e752ae307c..e3404d6c12 100644
--- a/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts
+++ b/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts
@@ -146,7 +146,6 @@ describe('dsh-tool-workflow', () => {
     engine.settleRun(runId, { value: 1, stopReason: 'completed', agentsStarted: 1 })
     expect((await pending).isError).toBe(false)
     expect(engine.disposed).toBe(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().map(event => [event.type, event.data])).toEqual([
       ['tool-workflow/run-start', { runId: 'run-1', name: 'audit' }],
       ['tool-workflow/agent-start', {
@@ -167,11 +166,9 @@ describe('dsh-tool-workflow', () => {
       value: null, stopReason: 'completed', agentsStarted: 0,
     })
     await vi.waitFor(() => { expect(engine.disposed).toBe(1) })
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().map(event => event.type)).toEqual(['tool-workflow/run-start'])
     barrier.resolve(undefined)
     expect((await pending).isError).toBe(false)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().map(event => event.type)).toEqual([
       'tool-workflow/run-start', 'tool-workflow/run-end',
     ])
@@ -193,10 +190,8 @@ describe('dsh-tool-workflow', () => {
     engine.settleRun(secondId, { value: null, stopReason: 'error', error: 'child failed', agentsStarted: 1 })
     expect((await first).isError).toBe(false)
     expect((await second).isError).toBe(true)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event => event.type === 'tool-workflow/agent-start'))
       .toHaveLength(1)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents().filter(event => event.type === 'tool-workflow/run-end').map(event => event.data))
       .toEqual([
         { runId: 'run-1', stopReason: 'completed' },
@@ -213,7 +208,6 @@ describe('dsh-tool-workflow', () => {
     await vi.waitFor(() => { expect(engine.requests).toHaveLength(1) })
     engine.settleRun(WorkflowRunId('run-1'), { value: null, stopReason: 'completed', agentsStarted: 0 })
     expect((await pending).isError).toBe(false)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(session.snapshotEvents()).toEqual([])
   })
 
@@ -246,7 +240,6 @@ describe('dsh-tool-workflow', () => {
     expect(engine.disposed).toBe(1)
     expect(warnings).toHaveLength(1)
     expect(warnings[0]).toContain(failedType)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     const types = session.snapshotEvents().map(event => event.type)
     const expectedPrefixes = {
       'tool-workflow/run-start': [],
diff --git a/scripts/oxlint-contract.spec.ts b/scripts/oxlint-contract.spec.ts
index f358f71d9c..aab098c2aa 100644
--- a/scripts/oxlint-contract.spec.ts
+++ b/scripts/oxlint-contract.spec.ts
@@ -254,13 +254,30 @@ export const longProbe = 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 +
     }
   }, 90_000)
 
-  it('allows waived Session history reads while rejecting new reads and unrelated deprecations', async () => {
+  it('allows Session history reads only in tests or with existing-call waivers', async () => {
     const suffix = randomUUID()
     const configPath = await writeContractConfig(suffix)
-    const path = join(repositoryRoot, 'scripts', `oxlint-contract-${suffix}.ts`)
+    const testPaths = [
+      `packages/core/session/tests/oxlint-contract-${suffix}.ts`,
+      `apps/cli/tests/oxlint-contract-${suffix}.ts`,
+      `scripts/oxlint-contract-${suffix}.spec.ts`,
+    ]
+    const productionPaths = [
+      `packages/core/session/src/oxlint-contract-${suffix}.ts`,
+      `scripts/oxlint-contract-${suffix}.ts`,
+    ]
+    const paths = [...testPaths, ...productionPaths]
+    const reads = `import { Session, SessionSeq } from '@deepseek-ai/dsh-session'
+
+export function reads(session: Session): void {
+  session.snapshotEvents()
+  session.eventAt(SessionSeq(0))
+  session.ownEvents()
+}
+`
     const existing = `import { Session, SessionSeq } from '@deepseek-ai/dsh-session'
 
-export function existingReads(session: Session): void {
+export function reads(session: Session): void {
   // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
   session.snapshotEvents()
   // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
@@ -269,39 +286,50 @@ export function existingReads(session: Session): void {
   session.ownEvents()
 }
 `
-    const added = `
+    const unrelated = `
 /** @deprecated Use the replacement API. */
 function oldApi(): void {}
 
-export function newReads(session: Session): void {
-  session.snapshotEvents()
-  session.eventAt(SessionSeq(0))
-  session.ownEvents()
+export function unrelatedRead(): void {
   oldApi()
 }
 `
 
     try {
-      await writeFile(path, existing)
-      const args = ['--config', relative(repositoryRoot, configPath), '--format', 'unix', relative(repositoryRoot, path)]
+      await Promise.all([
+        ...testPaths.map(path => writeFile(join(repositoryRoot, path), reads)),
+        ...productionPaths.map(path => writeFile(join(repositoryRoot, path), existing)),
+      ])
+      const args = ['--config', relative(repositoryRoot, configPath), '--format', 'unix', ...paths]
       const allowed = runRepositoryOxlint(args)
       expect(allowed.error).toBeUndefined()
       expect(allowed.signal).toBeNull()
       expect(allowed.status, normalizedOutput(allowed)).toBe(0)
 
-      await writeFile(path, existing + added)
+      await Promise.all([
+        ...testPaths.map(path => writeFile(join(repositoryRoot, path), reads + unrelated)),
+        ...productionPaths.map(path => writeFile(join(repositoryRoot, path), reads)),
+      ])
       const rejected = runRepositoryOxlint(args)
       const output = normalizedOutput(rejected)
       expect(rejected.error).toBeUndefined()
       expect(rejected.signal).toBeNull()
       expect(rejected.status, output).toBe(1)
-      expect(output.match(/typescript\(no-deprecated\)/g), output).toHaveLength(4)
+      const diagnostics = output.split('\n').filter(line => line.includes('typescript(no-deprecated)'))
+      for (const path of testPaths) {
+        const reported = diagnostics.filter(line => line.startsWith(`${path}:`))
+        expect(reported, output).toHaveLength(1)
+        expect(reported[0]).toContain('`oldApi` is deprecated')
+      }
+      for (const path of productionPaths) {
+        expect(diagnostics.filter(line => line.startsWith(`${path}:`)), output).toHaveLength(3)
+      }
       for (const method of ['snapshotEvents', 'eventAt', 'ownEvents', 'oldApi']) {
         expect(output).toContain(`\`${method}\` is deprecated`)
       }
     } finally {
       await Promise.all([
-        rm(path, { force: true }),
+        ...paths.map(path => rm(join(repositoryRoot, path), { force: true })),
         rm(configPath, { force: true }),
       ])
     }
diff --git a/scripts/python-snapshot-workflow-order.spec.ts b/scripts/python-snapshot-workflow-order.spec.ts
index 84f401c51b..964244f5da 100644
--- a/scripts/python-snapshot-workflow-order.spec.ts
+++ b/scripts/python-snapshot-workflow-order.spec.ts
@@ -82,7 +82,6 @@ describe('advanced Python snapshot workflow ordering', () => {
     const child = await entered.promise
     expect(child.id).toBe(run.id)
     expect(adapter.requests).toHaveLength(0)
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
     expect(child.session.snapshotEvents().some(event => event.type === 'subagent/descriptor')).toBe(false)
     parent.session.append('tool-workflow/agent-start', {
       runId: WorkflowRunId('run'), seq: 1, label: 'workflow-child', childId: child.id,

From a61b0c5a567f03ce5c36e05387218cf9426e223b Mon Sep 17 00:00:00 2001
From: _Kerman <kermanx@qq.com>
Date: Wed, 9 Sep 2026 13:16:09 +0800
Subject: [PATCH 05/32] test(lint): update the scoped deprecation fingerprint

---
 scripts/lint-rule-fingerprint.spec.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/lint-rule-fingerprint.spec.ts b/scripts/lint-rule-fingerprint.spec.ts
index 4aecd9e985..5ad4653d4e 100644
--- a/scripts/lint-rule-fingerprint.spec.ts
+++ b/scripts/lint-rule-fingerprint.spec.ts
@@ -30,7 +30,7 @@ const profiles = {
   test: {
     count: 84,
     indexes: [0, 3, 4, 5],
-    sha256: '7800bf57f0d689a5623e4ad60315b10173158fb9cf988d3f005cb115f2245691',
+    sha256: '7e4e1ed0cfca06ac94eeb26081195b5f753e7527775d5f5b95ccfefac9d2b137',
   },
 } as const satisfies Record<string, Profile>
 

From c433ac777681e576895f8fecee1069819bc0ae79 Mon Sep 17 00:00:00 2001
From: _Kerman <kermanx@qq.com>
Date: Wed, 9 Sep 2026 13:17:20 +0800
Subject: [PATCH 06/32] test(credentials): await reload commit notifications

---
 .../credentials-local/tests/watcher.spec.ts    | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/packages/credentials/credentials-local/tests/watcher.spec.ts b/packages/credentials/credentials-local/tests/watcher.spec.ts
index 314d425d1f..7a77e7952a 100644
--- a/packages/credentials/credentials-local/tests/watcher.spec.ts
+++ b/packages/credentials/credentials-local/tests/watcher.spec.ts
@@ -145,9 +145,15 @@ describe('watcher pipeline', () => {
     const dir = await tempDir()
     const path = join(dir, '.credentials.yaml')
     const ctx = await boot({ path, debounceMs: 5 })
+    const firstUpdate = Promise.withResolvers<undefined>()
+    const secondUpdate = Promise.withResolvers<undefined>()
     let arm = true
     ctx.on('credentials/reference-updated', () => {
-      if (!arm) return
+      if (!arm) {
+        secondUpdate.resolve(undefined)
+        return
+      }
+      firstUpdate.resolve(undefined)
       throw Object.assign(new Error('forged relation'), { code: 'INVARIANT' })
     })
     const [instance] = await fakeInstances()
@@ -156,16 +162,14 @@ describe('watcher pipeline', () => {
     instance!.watcher.emit('all', 'change', path)
     // The snapshot commits before the fan-out, so the value lands even though
     // the listener threw out of the refresh.
-    await vi.waitFor(async () => {
-      expect(await ctx.credentials.resolve(KEY)).toEqual({ value: 'first', source: 'file' })
-    })
+    await firstUpdate.promise
+    expect(await ctx.credentials.resolve(KEY)).toEqual({ value: 'first', source: 'file' })
 
     arm = false
     await writeCredentials(path, 'version: 1\nrefs:\n  DSH_CRED_PIPE: second\n')
     instance!.watcher.emit('all', 'change', path)
-    await vi.waitFor(async () => {
-      expect(await ctx.credentials.resolve(KEY)).toEqual({ value: 'second', source: 'file' })
-    })
+    await secondUpdate.promise
+    expect(await ctx.credentials.resolve(KEY)).toEqual({ value: 'second', source: 'file' })
   })
 
   it('quiesces the refresh pipeline before dispose completes', async () => {

From 3744740b6256347606aa973eb24f304513f8ccf2 Mon Sep 17 00:00:00 2001
From: _Kerman <kermanx@qq.com>
Date: Wed, 9 Sep 2026 13:17:21 +0800
Subject: [PATCH 07/32] test(agent-team): await recovered mail acknowledgement

---
 .../experimental/agent-team/tests/persistence.spec.ts  | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/packages/experimental/agent-team/tests/persistence.spec.ts b/packages/experimental/agent-team/tests/persistence.spec.ts
index 5237fc0301..8ca2f1b1e9 100644
--- a/packages/experimental/agent-team/tests/persistence.spec.ts
+++ b/packages/experimental/agent-team/tests/persistence.spec.ts
@@ -311,12 +311,20 @@ for (const backend of backends) {
       await first.dispose()
 
       const second = await stack(backend, storageRoot, [textResponse('resumed teammate answer')])
+      const delivered = Promise.withResolvers<undefined>()
+      second.ctx.on('session/event', (session, event) => {
+        if (session.id === rootId && event.type === 'team/message/delivered'
+          && event.data.messageId === queued.messageId) delivered.resolve(undefined)
+      })
       const rootHandle = await second.ctx.agents.resume({
         resumeSessionId: rootId,
         agentOptions: { provider: 'mock', model: 'mock' },
       })
+      // The child is also absent before cold resume starts; delivery proves recovery reached the mailbox.
+      await delivered.promise
+      await settleMailbox(second.ctx)
       await vi.waitFor(() => { expect(second.ctx.agents.get(started.member.id)).toBeUndefined() }, { timeout: 5_000 })
-      await vi.waitFor(() => { expect(durable(rootHandle.agent).pendingMessages).toEqual([]) })
+      expect(durable(rootHandle.agent).pendingMessages).toEqual([])
 
       const child = await storedEvents(second.ctx, started.member.id)
       const peerIds = child.flatMap(event => event.type === 'user/message'

From 536754191668eed7764be95dc26fa344bb9c3ea0 Mon Sep 17 00:00:00 2001
From: _Kerman <kermanx@qq.com>
Date: Wed, 9 Sep 2026 13:40:51 +0800
Subject: [PATCH 08/32] Revert "test(agent-team): await recovered mail
 acknowledgement"

This reverts commit 6e9b6abf38694f9e2ba4214e87356d90293f8dc8.
---
 .../experimental/agent-team/tests/persistence.spec.ts  | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/packages/experimental/agent-team/tests/persistence.spec.ts b/packages/experimental/agent-team/tests/persistence.spec.ts
index 8ca2f1b1e9..5237fc0301 100644
--- a/packages/experimental/agent-team/tests/persistence.spec.ts
+++ b/packages/experimental/agent-team/tests/persistence.spec.ts
@@ -311,20 +311,12 @@ for (const backend of backends) {
       await first.dispose()
 
       const second = await stack(backend, storageRoot, [textResponse('resumed teammate answer')])
-      const delivered = Promise.withResolvers<undefined>()
-      second.ctx.on('session/event', (session, event) => {
-        if (session.id === rootId && event.type === 'team/message/delivered'
-          && event.data.messageId === queued.messageId) delivered.resolve(undefined)
-      })
       const rootHandle = await second.ctx.agents.resume({
         resumeSessionId: rootId,
         agentOptions: { provider: 'mock', model: 'mock' },
       })
-      // The child is also absent before cold resume starts; delivery proves recovery reached the mailbox.
-      await delivered.promise
-      await settleMailbox(second.ctx)
       await vi.waitFor(() => { expect(second.ctx.agents.get(started.member.id)).toBeUndefined() }, { timeout: 5_000 })
-      expect(durable(rootHandle.agent).pendingMessages).toEqual([])
+      await vi.waitFor(() => { expect(durable(rootHandle.agent).pendingMessages).toEqual([]) })
 
       const child = await storedEvents(second.ctx, started.member.id)
       const peerIds = child.flatMap(event => event.type === 'user/message'

From ba1e73ddf56313b01bf22060b5293a6ee858d3ed Mon Sep 17 00:00:00 2001
From: _Kerman <kermanx@qq.com>
Date: Wed, 9 Sep 2026 13:40:51 +0800
Subject: [PATCH 09/32] Revert "test(credentials): await reload commit
 notifications"

This reverts commit 436ec72d4b744cbf3c1473680388d802940b6b9e.
---
 .../credentials-local/tests/watcher.spec.ts    | 18 +++++++-----------
 1 file changed, 7 insertions(+), 11 deletions(-)

diff --git a/packages/credentials/credentials-local/tests/watcher.spec.ts b/packages/credentials/credentials-local/tests/watcher.spec.ts
index 7a77e7952a..314d425d1f 100644
--- a/packages/credentials/credentials-local/tests/watcher.spec.ts
+++ b/packages/credentials/credentials-local/tests/watcher.spec.ts
@@ -145,15 +145,9 @@ describe('watcher pipeline', () => {
     const dir = await tempDir()
     const path = join(dir, '.credentials.yaml')
     const ctx = await boot({ path, debounceMs: 5 })
-    const firstUpdate = Promise.withResolvers<undefined>()
-    const secondUpdate = Promise.withResolvers<undefined>()
     let arm = true
     ctx.on('credentials/reference-updated', () => {
-      if (!arm) {
-        secondUpdate.resolve(undefined)
-        return
-      }
-      firstUpdate.resolve(undefined)
+      if (!arm) return
       throw Object.assign(new Error('forged relation'), { code: 'INVARIANT' })
     })
     const [instance] = await fakeInstances()
@@ -162,14 +156,16 @@ describe('watcher pipeline', () => {
     instance!.watcher.emit('all', 'change', path)
     // The snapshot commits before the fan-out, so the value lands even though
     // the listener threw out of the refresh.
-    await firstUpdate.promise
-    expect(await ctx.credentials.resolve(KEY)).toEqual({ value: 'first', source: 'file' })
+    await vi.waitFor(async () => {
+      expect(await ctx.credentials.resolve(KEY)).toEqual({ value: 'first', source: 'file' })
+    })
 
     arm = false
     await writeCredentials(path, 'version: 1\nrefs:\n  DSH_CRED_PIPE: second\n')
     instance!.watcher.emit('all', 'change', path)
-    await secondUpdate.promise
-    expect(await ctx.credentials.resolve(KEY)).toEqual({ value: 'second', source: 'file' })
+    await vi.waitFor(async () => {
+      expect(await ctx.credentials.resolve(KEY)).toEqual({ value: 'second', source: 'file' })
+    })
   })
 
   it('quiesces the refresh pipeline before dispose completes', async () => {

From 14da43d9ff2dc147fd15372a28f28c6df537905e Mon Sep 17 00:00:00 2001
From: _Kerman <kermanx@qq.com>
Date: Wed, 9 Sep 2026 14:51:50 +0800
Subject: [PATCH 10/32] docs(session): link deprecated readers to the history
 policy

---
 ...09-09-deprecate-synchronous-session-event-reads.i18n.yaml | 4 ++--
 .../2026-09-09-deprecate-synchronous-session-event-reads.md  | 4 ++--
 ...026-09-09-deprecate-synchronous-session-event-reads.zh.md | 4 ++--
 docs/subsystems/session.i18n.yaml                            | 4 ++--
 docs/subsystems/session.md                                   | 3 +++
 docs/subsystems/session.zh.md                                | 3 +++
 packages/core/session/src/index.ts                           | 5 ++++-
 scripts/oxlint-contract.spec.ts                              | 5 ++++-
 8 files changed, 22 insertions(+), 10 deletions(-)

diff --git a/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.i18n.yaml b/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.i18n.yaml
index 7a61bc540e..0cae49b087 100644
--- a/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.i18n.yaml
+++ b/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write .agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md
-2026-09-09-deprecate-synchronous-session-event-reads.md: 1420227daf9a410e7db6a7a685bcf4433d7d7b0b
-2026-09-09-deprecate-synchronous-session-event-reads.zh.md: e546337bcb15cf6682935729de37aab0c579d2a2
+2026-09-09-deprecate-synchronous-session-event-reads.md: a2a86b0d6500269531ca1088738aaa612076bfb4
+2026-09-09-deprecate-synchronous-session-event-reads.zh.md: 38468708a5323b6ebf94377f3cc8f2c86dc95dde
diff --git a/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md b/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md
index 1420227daf..a2a86b0d65 100644
--- a/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md
+++ b/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md
@@ -16,7 +16,7 @@ All operations that synchronously read arbitrary positions or ranges of Session
 
 The three methods carry this rule in `@deprecated` JSDoc. This is an API-use decision; the current Session implementation still retains the complete event sequence in memory.
 
-Repository test files may call these three readers to inspect emitted events and exercise Session history behavior. Their existing lint override allows `snapshotEvents`, `eventAt`, and `ownEvents`; all other deprecated names remain errors. This allowance also covers unrelated declarations with the same three names under the current linter. It does not apply to production source or ordinary repository scripts.
+Repository test files, including `scripts/**/*.spec.{ts,tsx}`, may call these three readers to inspect emitted events and exercise Session history behavior. The test-file lint override allows `snapshotEvents`, `eventAt`, and `ownEvents`; all other deprecated names remain errors. This allowance also covers unrelated declarations with the same three names under the current linter. It does not apply to production source or non-test repository scripts.
 
 ### State needed after resume
 
@@ -44,7 +44,7 @@ Fork and a small number of operations may genuinely need a complete historical s
 
 New domain behavior must make its event data and projected state sufficient for resumed execution. User-requested history may still load progressively, and genuine full-history operations still have a storage path to design. This decision does not claim that resume or fork already avoids loading the complete log.
 
-Existing calls outside test files carry line-scoped `typescript/no-deprecated` waivers with a migration-deferral reason. Remove a waiver when its call migrates; copying a waiver to a new production call violates this policy. The executable lint check accepts test reads and existing waived reads, rejects unwaived production reads, and rejects unrelated deprecated APIs in tests. Documentation checks verify the source-equivalent API declarations and bilingual records.
+Calls outside test files carry line-scoped `typescript/no-deprecated` waivers that identify deferred migration or delegation between deprecated readers. Remove a waiver when its deprecated call is removed; copying a waiver to a new production call violates this policy. The executable lint check accepts test reads and existing waived reads, rejects unwaived production reads, and rejects unrelated deprecated APIs in tests. Documentation checks verify the source-equivalent API declarations and bilingual records.
 
 ## Related decisions
 
diff --git a/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.zh.md b/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.zh.md
index e546337bcb..38468708a5 100644
--- a/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.zh.md
+++ b/.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.zh.md
@@ -16,7 +16,7 @@ Status: implemented
 
 这三个方法通过 `@deprecated` JSDoc 声明该规则。这是 API 使用决策；当前 Session 实现仍在内存中保留完整事件序列。
 
-仓库测试文件可以调用这三个读取方法，以检查已发出的事件并验证 Session 历史行为。现有测试 lint override 允许 `snapshotEvents`、`eventAt` 和 `ownEvents`，其他弃用名称仍报错。在当前 linter 下，此豁免也覆盖使用这三个名称的其他声明。它不适用于生产源码或普通仓库脚本。
+仓库测试文件（包括 `scripts/**/*.spec.{ts,tsx}`）可以调用这三个读取方法，以检查已发出的事件并验证 Session 历史行为。测试文件 lint override 允许 `snapshotEvents`、`eventAt` 和 `ownEvents`，其他弃用名称仍报错。在当前 linter 下，此豁免也覆盖使用这三个名称的其他声明。它不适用于生产源码或非测试仓库脚本。
 
 ### 恢复后需要的状态
 
@@ -44,7 +44,7 @@ fork 等少数操作可能确实需要完整历史序列或继承前缀。它们
 
 新增领域行为必须使其事件数据与投影状态足以支持恢复后的执行。用户请求的历史仍可渐进式加载，确实需要完整历史的操作仍需设计存储读取路径。本决策不表示恢复或 fork 已经能够避免加载完整日志。
 
-测试文件之外的现有调用带有逐行的 `typescript/no-deprecated` 豁免，并说明暂缓迁移的理由。调用迁移后应删除豁免；将豁免复制到新增生产调用违反本策略。实际执行 lint 的检查允许测试读取和已有豁免调用，拒绝未豁免的生产读取，并拒绝测试中其他已弃用 API。文档检查校验与源码一致的 API 声明及双语记录。
+测试文件之外的调用带有逐行的 `typescript/no-deprecated` 豁免，说明暂缓迁移或已弃用读取方法之间的委托。删除已弃用调用时应一并删除其豁免；将豁免复制到新增生产调用违反本策略。实际执行 lint 的检查允许测试读取和已有豁免调用，拒绝未豁免的生产读取，并拒绝测试中其他已弃用 API。文档检查校验与源码一致的 API 声明及双语记录。
 
 ## 相关决策
 
diff --git a/docs/subsystems/session.i18n.yaml b/docs/subsystems/session.i18n.yaml
index 4d4f5bc022..c5dbb4944f 100644
--- a/docs/subsystems/session.i18n.yaml
+++ b/docs/subsystems/session.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write docs/subsystems/session.md
-session.md: 077e90c66abe3b5f3f24d14c3fb25f356d887fa8
-session.zh.md: 6b9ceb85a276b0221c1e6ff474fbcdea77dff1fd
+session.md: 187578ac720dd3b7facba768491bd5fb867aa397
+session.zh.md: 3dae495b695c4ddec220c83d872c4f2c5f9b13c3
diff --git a/docs/subsystems/session.md b/docs/subsystems/session.md
index 077e90c66a..187578ac72 100644
--- a/docs/subsystems/session.md
+++ b/docs/subsystems/session.md
@@ -474,6 +474,7 @@ declare class Session {
   /**
    * Return the immutable event stored at one exact sequence number.
    * @deprecated Existing logic may remain unmigrated for now, but new calls are prohibited.
+   * See the [Agent Note](../../../../.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md).
    * @param seq - event sequence number.
    * @returns the accepted event, or undefined when the log does not contain it.
    */
@@ -483,6 +484,7 @@ declare class Session {
    * A full current snapshot is reused until the next append; every previously
    * returned snapshot remains stable after later appends.
    * @deprecated Existing logic may remain unmigrated for now, but new calls are prohibited.
+   * See the [Agent Note](../../../../.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md).
    * @param fromSeq - non-negative inclusive sequence number; defaults to the log start.
    * @param toSeqExclusive - non-negative exclusive sequence number; defaults to the current end.
    * @returns a frozen array of the selected deeply frozen events.
@@ -494,6 +496,7 @@ declare class Session {
   /**
    * Return this Session's events after its fork-inherited prefix.
    * @deprecated Existing logic may remain unmigrated for now, but new calls are prohibited.
+   * See the [Agent Note](../../../../.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md).
    * @returns a fresh array containing child-owned events in log order.
    */
   ownEvents(): readonly SessionEvent[];
diff --git a/docs/subsystems/session.zh.md b/docs/subsystems/session.zh.md
index 6b9ceb85a2..3dae495b69 100644
--- a/docs/subsystems/session.zh.md
+++ b/docs/subsystems/session.zh.md
@@ -476,6 +476,7 @@ declare class Session {
   /**
    * Return the immutable event stored at one exact sequence number.
    * @deprecated Existing logic may remain unmigrated for now, but new calls are prohibited.
+   * See the [Agent Note](../../../../.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md).
    * @param seq - event sequence number.
    * @returns the accepted event, or undefined when the log does not contain it.
    */
@@ -485,6 +486,7 @@ declare class Session {
    * A full current snapshot is reused until the next append; every previously
    * returned snapshot remains stable after later appends.
    * @deprecated Existing logic may remain unmigrated for now, but new calls are prohibited.
+   * See the [Agent Note](../../../../.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md).
    * @param fromSeq - non-negative inclusive sequence number; defaults to the log start.
    * @param toSeqExclusive - non-negative exclusive sequence number; defaults to the current end.
    * @returns a frozen array of the selected deeply frozen events.
@@ -496,6 +498,7 @@ declare class Session {
   /**
    * Return this Session's events after its fork-inherited prefix.
    * @deprecated Existing logic may remain unmigrated for now, but new calls are prohibited.
+   * See the [Agent Note](../../../../.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md).
    * @returns a fresh array containing child-owned events in log order.
    */
   ownEvents(): readonly SessionEvent[];
diff --git a/packages/core/session/src/index.ts b/packages/core/session/src/index.ts
index dbf124893e..12e9ed1918 100644
--- a/packages/core/session/src/index.ts
+++ b/packages/core/session/src/index.ts
@@ -616,6 +616,7 @@ export class Session {
   /**
    * Return the immutable event stored at one exact sequence number.
    * @deprecated Existing logic may remain unmigrated for now, but new calls are prohibited.
+   * See the [Agent Note](../../../../.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md).
    * @param seq - event sequence number.
    * @returns the accepted event, or undefined when the log does not contain it.
    */
@@ -628,6 +629,7 @@ export class Session {
    * A full current snapshot is reused until the next append; every previously
    * returned snapshot remains stable after later appends.
    * @deprecated Existing logic may remain unmigrated for now, but new calls are prohibited.
+   * See the [Agent Note](../../../../.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md).
    * @param fromSeq - non-negative inclusive sequence number; defaults to the log start.
    * @param toSeqExclusive - non-negative exclusive sequence number; defaults to the current end.
    * @returns a frozen array of the selected deeply frozen events.
@@ -646,10 +648,11 @@ export class Session {
   /**
    * Return this Session's events after its fork-inherited prefix.
    * @deprecated Existing logic may remain unmigrated for now, but new calls are prohibited.
+   * See the [Agent Note](../../../../.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md).
    * @returns a fresh array containing child-owned events in log order.
    */
   ownEvents(): readonly SessionEvent[] {
-    // oxlint-disable-next-line typescript/no-deprecated -- Existing Session history read; migration deferred.
+    // oxlint-disable-next-line typescript/no-deprecated -- Deprecated reader delegates to the deprecated range read.
     return this.snapshotEvents(this.inheritedEventCount)
   }
 
diff --git a/scripts/oxlint-contract.spec.ts b/scripts/oxlint-contract.spec.ts
index aab098c2aa..1618907a1b 100644
--- a/scripts/oxlint-contract.spec.ts
+++ b/scripts/oxlint-contract.spec.ts
@@ -315,7 +315,7 @@ export function unrelatedRead(): void {
       expect(rejected.error).toBeUndefined()
       expect(rejected.signal).toBeNull()
       expect(rejected.status, output).toBe(1)
-      const diagnostics = output.split('\n').filter(line => line.includes('typescript(no-deprecated)'))
+      const diagnostics = output.split('\n').filter(line => /:\d+:\d+: `\w+` is deprecated\./.test(line))
       for (const path of testPaths) {
         const reported = diagnostics.filter(line => line.startsWith(`${path}:`))
         expect(reported, output).toHaveLength(1)
@@ -327,6 +327,9 @@ export function unrelatedRead(): void {
       for (const method of ['snapshotEvents', 'eventAt', 'ownEvents', 'oldApi']) {
         expect(output).toContain(`\`${method}\` is deprecated`)
       }
+      expect(output).toContain(
+        'See the [Agent Note](../../../../.agents/notes/implemented/architecture/2026-09-09-deprecate-synchronous-session-event-reads.md).',
+      )
     } finally {
       await Promise.all([
         ...paths.map(path => rm(join(repositoryRoot, path), { force: true })),

From 12ba944f549229b2c64555f9b8368843d5d139a3 Mon Sep 17 00:00:00 2001
From: _Kerman <kermanx@qq.com>
Date: Wed, 9 Sep 2026 14:52:15 +0800
Subject: [PATCH 11/32] test(lint): cover example history reader exemptions

---
 scripts/oxlint-contract.spec.ts | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/scripts/oxlint-contract.spec.ts b/scripts/oxlint-contract.spec.ts
index 1618907a1b..8cb4098f17 100644
--- a/scripts/oxlint-contract.spec.ts
+++ b/scripts/oxlint-contract.spec.ts
@@ -257,9 +257,12 @@ export const longProbe = 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 +
   it('allows Session history reads only in tests or with existing-call waivers', async () => {
     const suffix = randomUUID()
     const configPath = await writeContractConfig(suffix)
+    const exampleRoot = `examples/oxlint-contract-${suffix}`
+    const examplePath = `${exampleRoot}/tests/reads.ts`
     const testPaths = [
       `packages/core/session/tests/oxlint-contract-${suffix}.ts`,
       `apps/cli/tests/oxlint-contract-${suffix}.ts`,
+      examplePath,
       `scripts/oxlint-contract-${suffix}.spec.ts`,
     ]
     const productionPaths = [
@@ -296,6 +299,11 @@ export function unrelatedRead(): void {
 `
 
     try {
+      await mkdir(join(repositoryRoot, exampleRoot, 'tests'), { recursive: true })
+      await writeFile(join(repositoryRoot, exampleRoot, 'tsconfig.json'), JSON.stringify({
+        extends: '../../tsconfig.base.json',
+        include: ['tests/**/*.ts'],
+      }))
       await Promise.all([
         ...testPaths.map(path => writeFile(join(repositoryRoot, path), reads)),
         ...productionPaths.map(path => writeFile(join(repositoryRoot, path), existing)),
@@ -332,7 +340,8 @@ export function unrelatedRead(): void {
       )
     } finally {
       await Promise.all([
-        ...paths.map(path => rm(join(repositoryRoot, path), { force: true })),
+        ...paths.filter(path => path !== examplePath).map(path => rm(join(repositoryRoot, path), { force: true })),
+        rm(join(repositoryRoot, exampleRoot), { recursive: true, force: true }),
         rm(configPath, { force: true }),
       ])
     }

From 9c14f2785f2bdf41487b9006229a7cc134786b21 Mon Sep 17 00:00:00 2001
From: winewill <leto.wine@gmail.com>
Date: Wed, 9 Sep 2026 15:52:46 +0800
Subject: [PATCH 12/32] perf(desktop): parallelize macOS notarization

---
 ...on-desktop-packaging-and-updates.i18n.yaml |   4 +-
 ...-electron-desktop-packaging-and-updates.md |   2 +-
 ...ectron-desktop-packaging-and-updates.zh.md |   2 +-
 ...9-09-parallel-macos-notarization.i18n.yaml |   6 +
 .../2026-09-09-parallel-macos-notarization.md |  37 ++++
 ...26-09-09-parallel-macos-notarization.zh.md |  37 ++++
 apps/desktop/README.i18n.yaml                 |   4 +-
 apps/desktop/README.md                        |   4 +-
 apps/desktop/README.zh.md                     |   4 +-
 apps/desktop/scripts/package-macos.ts         | 121 +++++++++++
 apps/desktop/scripts/package-target.ts        |  23 ++-
 .../scripts/verify-macos-signature.d.mts      |   7 +
 .../scripts/verify-macos-signature.mjs        |  12 ++
 apps/desktop/tests/package-macos.spec.ts      | 188 ++++++++++++++++++
 14 files changed, 442 insertions(+), 9 deletions(-)
 create mode 100644 .agents/notes/implemented/process/2026-09-09-parallel-macos-notarization.i18n.yaml
 create mode 100644 .agents/notes/implemented/process/2026-09-09-parallel-macos-notarization.md
 create mode 100644 .agents/notes/implemented/process/2026-09-09-parallel-macos-notarization.zh.md
 create mode 100644 apps/desktop/scripts/package-macos.ts
 create mode 100644 apps/desktop/tests/package-macos.spec.ts

diff --git a/.agents/notes/implemented/architecture/2026-08-25-electron-desktop-packaging-and-updates.i18n.yaml b/.agents/notes/implemented/architecture/2026-08-25-electron-desktop-packaging-and-updates.i18n.yaml
index fe1bf84c1b..5a68f12a7b 100644
--- a/.agents/notes/implemented/architecture/2026-08-25-electron-desktop-packaging-and-updates.i18n.yaml
+++ b/.agents/notes/implemented/architecture/2026-08-25-electron-desktop-packaging-and-updates.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write .agents/notes/implemented/architecture/2026-08-25-electron-desktop-packaging-and-updates.md
-2026-08-25-electron-desktop-packaging-and-updates.md: d7d41aa4d6154f251b56faaa29065db3ee71071f
-2026-08-25-electron-desktop-packaging-and-updates.zh.md: 952ed4fc5546524bc088f58e62faccd576194bc7
+2026-08-25-electron-desktop-packaging-and-updates.md: 7a12cefe2ba8f9cb721a3f7eaf329964813f5bbb
+2026-08-25-electron-desktop-packaging-and-updates.zh.md: 5c766fc94cd6c88d04bfb2fe13cecc936da17c87
diff --git a/.agents/notes/implemented/architecture/2026-08-25-electron-desktop-packaging-and-updates.md b/.agents/notes/implemented/architecture/2026-08-25-electron-desktop-packaging-and-updates.md
index d7d41aa4d6..7a12cefe2b 100644
--- a/.agents/notes/implemented/architecture/2026-08-25-electron-desktop-packaging-and-updates.md
+++ b/.agents/notes/implemented/architecture/2026-08-25-electron-desktop-packaging-and-updates.md
@@ -83,7 +83,7 @@ Before opening the product window, startup validates the current bundled runtime
 
 Core dsh and the private Desktop Host come only from the signed application resource tree. Plugin installation accepts registry package specs allowed by desktop policy but never raw pnpm commands. Exact versions, lockfile integrity, a reviewed `allowBuilds` set, user-only directory permissions, and health checking are required before activation.
 
-Electron artifacts are signed; macOS artifacts are notarized. Release automation must supply the application ID, macOS Developer ID qualifier, expected Team ID, and one complete notarytool credential strategy through explicit environment variables. Configuration loading rejects missing or malformed identifiers and incomplete notarization credentials, while macOS packaging requires signing so certificate discovery cannot silently select another installed identity or emit an unsigned release. Runtime preparation verifies the exact Authority and Team ID plus the timestamp and hardened-runtime flags on every embedded Mach-O file. An after-sign hook performs Apple's deep strict application verification and requires the same leaf Authority and Team ID before artifact creation continues. Electron-builder then notarizes and staples the application and signs the DMG. The DMG artifact-completion hook separately notarizes and staples every DMG before requiring the configured identity, a valid ticket, and Gatekeeper acceptance; the upload event runs only after that hook succeeds. DMG blockmaps are disabled because macOS updates consume the signed ZIP, and stapling would otherwise invalidate an already-generated DMG blockmap. The custom protocol serves the installed frontend distribution plus client files named by the active module graph and rejects traversal or access outside those roots. The plugin installer API is available only to the Electron-owned management GUI and is absent from the browser application and backend RPC.
+Electron artifacts are signed; macOS artifacts are notarized. Release automation must supply the application ID, macOS Developer ID qualifier, expected Team ID, and one complete notarytool credential strategy through explicit environment variables. Configuration loading rejects missing or malformed identifiers and incomplete notarization credentials, while macOS packaging requires signing so certificate discovery cannot silently select another installed identity or emit an unsigned release. Runtime preparation verifies the exact Authority and Team ID plus the timestamp and hardened-runtime flags on every embedded Mach-O file. An after-sign hook performs Apple's deep strict application verification and requires the same leaf Authority and Team ID before artifact creation continues. The fixed-target installer command uses [isolated App copies for parallel notarization](../process/2026-09-09-parallel-macos-notarization.md): the ZIP contains a stapled App, while the signed DMG carries the ticket covering its unstapled inner App. The DMG artifact-completion hook requires the configured identity, a valid ticket, and Gatekeeper acceptance. Both artifact lanes must succeed before the command promotes their outputs and writes the release completion record; directory-only commands still notarize and staple the App. DMG blockmaps are disabled because macOS updates consume the signed ZIP, and stapling would otherwise invalidate an already-generated DMG blockmap. The custom protocol serves the installed frontend distribution plus client files named by the active module graph and rejects traversal or access outside those roots. The plugin installer API is available only to the Electron-owned management GUI and is absent from the browser application and backend RPC.
 
 The [pinned osx-sign patch](../../../../patches/@electron__osx-sign@1.3.3.patch) uses `lstat` in both published module builds, so Framework file and directory aliases do not trigger duplicate signing. The patch remains necessary until the selected upstream release skips those aliases. PAK files are resources sealed by the enclosing bundle; individual signatures add serial timestamp requests without additional resource integrity. Desktop preserves all locale files and skips only their standalone signatures. Executable code retains Developer ID signatures, secure timestamps, and hardened runtime. The [signer traversal regression](../../../../apps/desktop/tests/macos-signing-walk.spec.ts) exercises the installed dependency with real Framework aliases; release qualification still requires strict application verification, notarization, and startup.
 
diff --git a/.agents/notes/implemented/architecture/2026-08-25-electron-desktop-packaging-and-updates.zh.md b/.agents/notes/implemented/architecture/2026-08-25-electron-desktop-packaging-and-updates.zh.md
index 952ed4fc55..5c766fc94c 100644
--- a/.agents/notes/implemented/architecture/2026-08-25-electron-desktop-packaging-and-updates.zh.md
+++ b/.agents/notes/implemented/architecture/2026-08-25-electron-desktop-packaging-and-updates.zh.md
@@ -83,7 +83,7 @@ Electron 更新只使用一个 `electron-updater` 发布流和签名 `electron-b
 
 核心 dsh 和私有 Desktop Host 只来自签名应用的资源树。插件安装接受桌面策略允许的 registry 包规格，不接受原始 pnpm 命令。激活前要求精确版本、锁文件完整性、经过审查的 `allowBuilds` 集合、仅限用户访问的目录权限和健康检查。
 
-Electron 产物必须签名；macOS 产物必须公证。发布自动化必须通过明确的环境变量提供应用 ID、macOS Developer ID 限定名、预期 Team ID 与一套完整的 notarytool 凭据。配置加载会拒绝缺失或格式错误的标识符和不完整的公证凭据，macOS 打包还会强制签名，避免证书发现过程静默选择其他已安装身份或生成未签名发布。运行时准备会验证每个内嵌 Mach-O 文件的精确 Authority 与 Team ID，以及时间戳和 hardened-runtime 标记。签名后钩子会执行 Apple 的深度严格应用验证，并要求同一叶证书 Authority 与 Team ID 完全匹配，验证通过后才继续生成产物。Electron-builder 随后公证应用并钉票、签署 DMG。DMG 的 artifact-completion hook 会单独公证每个 DMG 并钉票，再要求其使用配置的身份、具备有效票据并通过 Gatekeeper；只有该 hook 成功，上传事件才会执行。macOS 更新使用签名 ZIP，因此 DMG 不生成 blockmap；否则钉票会让已经生成的 DMG blockmap 失效。自定义协议提供已安装的前端分发目录和活跃模块图点名的客户端文件，并拒绝路径穿越或访问这些根目录之外的内容。插件安装器 API 只对 Electron 拥有的管理 GUI 可用，不存在于浏览器应用或后端 RPC 中。
+Electron 产物必须签名；macOS 产物必须公证。发布自动化必须通过明确的环境变量提供应用 ID、macOS Developer ID 限定名、预期 Team ID 与一套完整的 notarytool 凭据。配置加载会拒绝缺失或格式错误的标识符和不完整的公证凭据，macOS 打包还会强制签名，避免证书发现过程静默选择其他已安装身份或生成未签名发布。运行时准备会验证每个内嵌 Mach-O 文件的精确 Authority 与 Team ID，以及时间戳和 hardened-runtime 标记。签名后钩子会执行 Apple 的深度严格应用验证，并要求同一叶证书 Authority 与 Team ID 完全匹配，验证通过后才继续生成产物。固定目标安装包命令使用[隔离的 App 副本并行公证](../process/2026-09-09-parallel-macos-notarization.zh.md)：ZIP 包含已钉票的 App，签名 DMG 则携带覆盖其中未钉票 App 的票据。DMG 的 artifact-completion hook 要求其使用配置的身份、具备有效票据并通过 Gatekeeper。只有两条产物流都成功，命令才会移入其输出并写入发布完成记录；仅生成目录的命令仍会公证 App 并钉票。macOS 更新使用签名 ZIP，因此 DMG 不生成 blockmap；否则钉票会让已经生成的 DMG blockmap 失效。自定义协议提供已安装的前端分发目录和活跃模块图点名的客户端文件，并拒绝路径穿越或访问这些根目录之外的内容。插件安装器 API 只对 Electron 拥有的管理 GUI 可用，不存在于浏览器应用或后端 RPC 中。
 
 [固定版本的 osx-sign 补丁](../../../../patches/@electron__osx-sign@1.3.3.patch)在两种已发布模块构建中使用 `lstat`，因此 Framework 的文件和目录别名不会触发重复签名。选定的上游版本能够跳过这些别名前，仍需保留该补丁。PAK 文件由外层 bundle 签名记录完整性；逐个签名会增加串行时间戳请求，但不会增加资源完整性保护。Desktop 保留全部语言文件，只跳过其单独签名。可执行代码仍使用 Developer ID 签名、安全时间戳和 hardened runtime。[签名器遍历回归测试](../../../../apps/desktop/tests/macos-signing-walk.spec.ts)使用真实 Framework 别名执行已安装依赖；发布验收仍要求严格应用验证、公证和启动。
 
diff --git a/.agents/notes/implemented/process/2026-09-09-parallel-macos-notarization.i18n.yaml b/.agents/notes/implemented/process/2026-09-09-parallel-macos-notarization.i18n.yaml
new file mode 100644
index 0000000000..bd4f67275d
--- /dev/null
+++ b/.agents/notes/implemented/process/2026-09-09-parallel-macos-notarization.i18n.yaml
@@ -0,0 +1,6 @@
+# Bilingual-pair consistency record (docs/i18n/README.md): the git blob hash of each
+# side as of the last confirmed-consistent state. Both languages carry equal authority;
+# after editing either side, bring the other along and re-record with:
+#   pnpm run verify-translation-pairing --write .agents/notes/implemented/process/2026-09-09-parallel-macos-notarization.md
+2026-09-09-parallel-macos-notarization.md: 152da4661207bf130389e600c16398335fd9fe70
+2026-09-09-parallel-macos-notarization.zh.md: d5375e39a6348b49ffe5bb93c2c056151d5abe75
diff --git a/.agents/notes/implemented/process/2026-09-09-parallel-macos-notarization.md b/.agents/notes/implemented/process/2026-09-09-parallel-macos-notarization.md
new file mode 100644
index 0000000000..152da46612
--- /dev/null
+++ b/.agents/notes/implemented/process/2026-09-09-parallel-macos-notarization.md
@@ -0,0 +1,37 @@
+# Agent Note: Parallel macOS notarization from isolated App copies
+
+Status: implemented
+
+English | [中文](2026-09-09-parallel-macos-notarization.zh.md)
+
+## Problem
+
+The Desktop release distributes a DMG for installation and a ZIP for updates. Waiting for App notarization before creating the DMG serializes two Apple submissions. A proxy improves upload throughput but does not overlap the independent service waits. Stapling modifies the App, so concurrent notarization and packaging cannot safely share that writable directory.
+
+## Decision
+
+The fixed-target installer command signs and verifies one App, then creates two independent copies with `ditto`. The App lane notarizes and staples its copy, verifies its signature, ticket, and Gatekeeper acceptance, and asks electron-builder to create the ZIP and updater metadata. The DMG lane immediately packages its copy, signs the image, and uses the existing artifact-completion hook to notarize, staple, and verify the image. Each electron-builder process receives the actual `.app` path through `--prepackaged`, an isolated output directory, and `--publish never`.
+
+The ZIP contains an individually stapled App. The DMG contains the signed App without an individually stapled ticket; its outer ticket covers the nested code, following Apple's [container guidance](https://developer.apple.com/documentation/xcode/packaging-mac-software-for-distribution). Apple describes [ticket ingestion when Gatekeeper checks the outer container](https://developer.apple.com/forums/thread/125512). Independent extraction of the unstapled App relies on an online or cached ticket; the ZIP supplies an embedded ticket. The directory-only command continues to notarize and staple its App.
+
+Both lanes settle before error propagation or temporary-directory cleanup. Only two successful lanes allow promotion of the DMG, ZIP, ZIP blockmap, and channel metadata. The stapled App replaces the signed directory build, and the caller writes the release completion record last. An error leaves that record absent, so the existing upload validation rejects the incomplete release. Separate output directories also prevent concurrent writes to electron-builder diagnostics and channel metadata.
+
+This refines the notarization ordering in the [Desktop packaging decision](../architecture/2026-08-25-electron-desktop-packaging-and-updates.md); that note remains the owner of release identity, signatures, update ownership, and publishing requirements.
+
+## Alternatives considered
+
+**Share one App between both lanes.** A DMG reader can overlap with `stapler` writes, producing a nondeterministic bundle. Independent copies keep the submitted and distributed bytes stable within each lane.
+
+**Only notarize the DMG.** ZIP updates are distributed independently and need a stapled App. Retaining both submissions keeps that independent qualification explicit.
+
+**Keep serial notarization and only use a proxy.** The same 214.84 MiB DMG uploads in 203.83 seconds directly and 38.59 seconds through the tested system proxy, but neither route removes the serial dependency between Apple submissions. Proxy configuration remains a build-host concern; the packaging script does not change host network settings.
+
+**Run both targets in one electron-builder call before App notarization finishes.** The ZIP must read the stapled copy. Separate prepackaged invocations preserve electron-builder's own archive, blockmap, and metadata implementation without changing its target scheduling or patching the dependency.
+
+## Consequences
+
+On 2026-09-09, full arm64 packaging on the same Mac through the same system proxy took 490.78 seconds with parallel notarization versus 751.33 seconds serially, a 34.7% reduction. The artifact lanes began 8 milliseconds apart and completed in 307.36 seconds for App/ZIP and 268.54 seconds for DMG. Apple accepted both submissions; their uploads completed about one second apart. Each configuration has one full-build sample, so cache and Apple queue variation prevent attributing the entire difference to concurrency.
+
+Two temporary App copies and separate artifact directories increase peak disk usage. Two uploads can contend for network bandwidth, and Apple can queue either submission independently; phase timings describe observed behavior rather than a CI latency budget. A failed lane waits for the other lane to finish before cleanup, which can delay failure reporting but avoids deleting files still owned by a child process.
+
+The [orchestration tests](../../../../apps/desktop/tests/package-macos.spec.ts) use barriers to prove overlap, ticket isolation, both-error collection, and refusal to promote incomplete artifacts. A controlled serial regression fails the overlap assertion. Real signed macOS packaging, extracted ZIP verification, DMG integrity and nested signature checks, and final upload-plan validation qualify the platform tools; cross-version installed updates and offline installation on a clean Mac remain release qualification work.
diff --git a/.agents/notes/implemented/process/2026-09-09-parallel-macos-notarization.zh.md b/.agents/notes/implemented/process/2026-09-09-parallel-macos-notarization.zh.md
new file mode 100644
index 0000000000..d5375e39a6
--- /dev/null
+++ b/.agents/notes/implemented/process/2026-09-09-parallel-macos-notarization.zh.md
@@ -0,0 +1,37 @@
+# Agent Note: 基于隔离 App 副本的并行 macOS 公证
+
+Status: implemented
+
+[English](2026-09-09-parallel-macos-notarization.md) | 中文
+
+## 问题
+
+Desktop 发布同时提供用于安装的 DMG 和用于更新的 ZIP。等待 App 公证完成后才创建 DMG，会让两次 Apple 提交串行执行。代理可以提高上传吞吐量，但不能让两个独立的服务等待过程重叠。钉票会修改 App，因此并发公证和打包不能安全地共享同一个可写目录。
+
+## 决策
+
+固定目标安装包命令先签名并验证一个 App，再通过 `ditto` 创建两个独立副本。App 路线公证其副本并钉票，验证签名、票据与 Gatekeeper 接受状态，再由 electron-builder 生成 ZIP 和更新元数据。DMG 路线立即封装其副本、签署映像，再通过现有 artifact-completion hook 公证映像、钉票并验证。每个 electron-builder 进程都通过 `--prepackaged` 接收真正的 `.app` 路径、独立的输出目录和 `--publish never`。
+
+ZIP 包含已单独钉票的 App。DMG 包含已签名但未单独附加票据的 App；根据 Apple 的[容器说明](https://developer.apple.com/documentation/xcode/packaging-mac-software-for-distribution)，外层票据覆盖内嵌代码。Apple 还说明了 [Gatekeeper 检查外层容器时接收票据的行为](https://developer.apple.com/forums/thread/125512)。单独提取未钉票 App 依赖在线或缓存票据；ZIP 则提供内嵌票据。仅生成目录的命令仍会公证 App 并钉票。
+
+错误传播和临时目录清理前必须等待两路均结束。只有两路都成功，才允许移入 DMG、ZIP、ZIP blockmap 和频道元数据。已钉票的 App 替换签名目录构建，调用方最后写入发布完成记录。发生错误时该记录保持缺失，现有上传校验因而会拒绝不完整发布。独立输出目录还避免了 electron-builder 诊断文件与频道元数据的并发写入。
+
+本决策细化了 [Desktop 打包决策](../architecture/2026-08-25-electron-desktop-packaging-and-updates.zh.md)中的公证顺序；原决策继续负责发布身份、签名、更新归属与发布要求。
+
+## 考虑过的替代方案
+
+**两路共享一个 App。** DMG 读取可能与 `stapler` 写入重叠，使 bundle 内容不确定。独立副本使每条路线中提交与分发的字节保持稳定。
+
+**只公证 DMG。** ZIP 更新独立分发，需要已钉票的 App。保留两次提交可以明确维持这项独立验收。
+
+**保留串行公证，仅使用代理。** 同一个 214.84 MiB DMG 直连上传耗时 203.83 秒，通过所测系统代理上传耗时 38.59 秒，但两种网络路径都不能消除 Apple 提交间的串行依赖。代理配置仍由构建主机负责；打包脚本不修改主机网络设置。
+
+**App 公证结束前，在同一次 electron-builder 调用中运行两个目标。** ZIP 必须读取已钉票副本。独立的 prepackaged 调用可以保留 electron-builder 自己的归档、blockmap 和元数据实现，无需修改目标调度或给依赖打补丁。
+
+## 影响
+
+2026-09-09，在同一台 Mac、同一系统代理下，arm64 完整打包在并行公证时耗时 490.78 秒，串行时耗时 751.33 秒，缩短 34.7%。两条产物路线相隔 8 毫秒启动，App/ZIP 耗时 307.36 秒，DMG 耗时 268.54 秒。Apple 接受了两次提交，两者上传完成时间仅相差约一秒。每种配置只有一次完整构建样本，缓存与 Apple 队列变化使我们不能将全部差值归因于并发。
+
+两个临时 App 副本与独立产物目录增加了磁盘峰值占用。两次上传可能争用网络带宽，Apple 也可能分别排队处理；阶段计时记录实际行为，不构成 CI 延迟预算。一路失败后会等待另一路结束再清理，这可能延迟错误报告，但能避免删除仍由子进程持有的文件。
+
+[编排测试](../../../../apps/desktop/tests/package-macos.spec.ts)通过同步屏障验证重叠执行、票据隔离、收集两路错误，以及拒绝移入不完整产物。受控的串行回归会使重叠断言失败。真实签名 macOS 打包、ZIP 解压后验证、DMG 完整性与内嵌签名检查、最终上传计划验证用于验收平台工具；跨版本已安装应用更新和干净 Mac 上的离线安装仍属于发布验收工作。
diff --git a/apps/desktop/README.i18n.yaml b/apps/desktop/README.i18n.yaml
index 30b7fcabe7..561017590b 100644
--- a/apps/desktop/README.i18n.yaml
+++ b/apps/desktop/README.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write apps/desktop/README.md
-README.md: 6ef18d302531beb80877f23d657d8524ff396b2b
-README.zh.md: 94669b2697af894f91f33068526a0c61d6ed7a8f
+README.md: 42ae18fa0520401adec7eaef9bb4c019911cbeb3
+README.zh.md: 65be3c1a0568a5d70f64bd4b783cfd59be8fce4b
diff --git a/apps/desktop/README.md b/apps/desktop/README.md
index 6ef18d3025..42ae18fa05 100644
--- a/apps/desktop/README.md
+++ b/apps/desktop/README.md
@@ -115,10 +115,12 @@ pnpm run upload:mac:arm64
 
 Set `DSH_DESKTOP_AUTO_UPDATE_ENV=production` before packaging, then provide `DOWNLOAD_PROD_COS_BUCKET` and the production credential pair before running `upload:mac:arm64`, `upload:mac:x64`, or `upload:win:x64`. Packaging does not require a COS bucket or credentials. It explicitly disables electron-builder publishing, strips all four COS credential fields from its subprocesses, and writes a target completion record only after electron-builder and every signing or notarization hook succeeds. Upload requires that record to match the selected environment, target, public URL, and current dsh version; it also requires the root dsh version, Desktop version, channel metadata version, artifact names, sizes, and SHA-512 values to agree before it reads the selected COS credential pair. It uploads only that target's immutable versioned artifacts, uploads the version-derived channel metadata last with `no-cache`, and never deletes historical objects. Stable releases use `latest-mac.yml` or `latest.yml`; a prerelease such as `alpha` uses `alpha-mac.yml` or `alpha.yml`, matching electron-builder's emitted filename.
 
-The macOS configuration uses the required release environment instead of accepting whichever certificate appears first in a keychain. It rejects empty values, a malformed Team ID, a signing identity that includes electron-builder's unsupported `Developer ID Application:` prefix, and incomplete notarization credentials. macOS packaging requires the configured identity and its private key. Runtime preparation applies that identity, a secure timestamp, and hardened runtime to every embedded Mach-O file; after signing the application, a deep strict check rejects any other leaf authority or Team ID before artifact creation. Electron-builder notarizes and staples the application before packaging and signs the DMG. The DMG artifact-completion hook then notarizes and staples it before requiring its exact identity, ticket, and Gatekeeper acceptance; only after the hook succeeds can electron-builder publish the file. The private key can come from the login keychain or electron-builder's standard `CSC_LINK` input; ambient `CSC_NAME` and certificate discovery order do not select the release owner. Notary credentials may instead use electron-builder's complete Apple ID or keychain-profile strategy. The two macOS identity variables are also required when repeating the application check manually with `pnpm --dir apps/desktop run verify:mac-signature -- <path-to-app>`.
+The macOS configuration uses the required release environment instead of accepting whichever certificate appears first in a keychain. It rejects empty values, a malformed Team ID, a signing identity that includes electron-builder's unsupported `Developer ID Application:` prefix, and incomplete notarization credentials. macOS packaging requires the configured identity and its private key. Runtime preparation applies that identity, a secure timestamp, and hardened runtime to every embedded Mach-O file; after signing the application, a deep strict check rejects any other leaf authority or Team ID before artifact creation. The fixed-target macOS installer commands create separate copies of the signed application and run two artifact lanes concurrently. One lane notarizes and staples the App before generating the ZIP and its update metadata. The other encloses its signed App copy in a signed DMG, then notarizes, staples, and verifies the DMG; its inner App has no individually stapled ticket. Both lanes must finish successfully before their artifacts reach the final directory and the release completion record is written. Directory-only commands still notarize and staple the App. The [parallel notarization decision](../../.agents/notes/implemented/process/2026-09-09-parallel-macos-notarization.md) owns copy isolation and container ticket semantics. The private key can come from the login keychain or electron-builder's standard `CSC_LINK` input; ambient `CSC_NAME` and certificate discovery order do not select the release owner. Notary credentials may instead use electron-builder's complete Apple ID or keychain-profile strategy. The two macOS identity variables are also required when repeating the application check manually with `pnpm --dir apps/desktop run verify:mac-signature -- <path-to-app>`.
 
 macOS signing visits real files without following Framework symlink aliases. PAK resources retain all shipped languages and are sealed by the enclosing Framework or application signature instead of receiving individual signatures. The [release policy](../../.agents/notes/implemented/architecture/2026-08-25-electron-desktop-packaging-and-updates.md) owns the dependency patch and verification requirements.
 
+Company proxies can accelerate uploads to Apple's notarization service. See the company internal documentation for configuration.
+
 ### Windows EV signing
 
 Windows release packaging requires `DSH_DESKTOP_WINDOWS_CER_FILE` to identify the public GlobalSign EV leaf certificate, `DSH_DESKTOP_WINDOWS_SIGNTOOL` to identify the SafeNet-compatible SignTool executable, `DSH_DESKTOP_WINDOWS_KEY_CONTAINER` to identify the matching private-key container, and `DSH_DESKTOP_WINDOWS_TOKEN_PIN` to contain the SafeNet Token Password. The certificate file remains outside source control, and the matching private key stays on the USB token. Set the four inputs before running the fixed Windows target:
diff --git a/apps/desktop/README.zh.md b/apps/desktop/README.zh.md
index 94669b2697..65be3c1a05 100644
--- a/apps/desktop/README.zh.md
+++ b/apps/desktop/README.zh.md
@@ -115,10 +115,12 @@ pnpm run upload:mac:arm64
 
 生产发布需在打包前设置 `DSH_DESKTOP_AUTO_UPDATE_ENV=production`，再在执行 `upload:mac:arm64`、`upload:mac:x64` 或 `upload:win:x64` 前提供 `DOWNLOAD_PROD_COS_BUCKET` 与生产凭据对。打包不要求 COS bucket 或凭据。它会明确禁止 electron-builder 发布，从其子进程中删除全部四个 COS 凭据字段，并且只有在 electron-builder 以及全部签名或公证 hook 成功后才写入目标完成记录。上传会先要求该记录与所选环境、目标、公开 URL 和当前 dsh 版本一致，再要求根 dsh 版本、Desktop 版本、频道元数据版本、产物名称、大小与 SHA-512 全部一致，之后才读取所选 COS 凭据对。它只上传该目标不可变且带版本的产物，最后以 `no-cache` 上传根据版本得出的频道元数据，并且不会删除历史对象。稳定版本使用 `latest-mac.yml` 或 `latest.yml`；`alpha` 等预发布版本则使用 `alpha-mac.yml` 或 `alpha.yml`，与 electron-builder 生成的文件名一致。
 
-macOS 配置使用必填发布环境，不会接受钥匙串中最先发现的证书。空值、格式错误的 Team ID、包含 electron-builder 不支持的 `Developer ID Application:` 前缀的签名身份，以及不完整的公证凭据都会被拒绝。macOS 打包要求已配置的身份及其私钥可用。运行时准备会把该身份、安全时间戳与 hardened runtime 应用到每个内嵌 Mach-O 文件；应用签名完成后，深度严格检查会拒绝其他叶证书 Authority 或 Team ID，验证通过才生成发布产物。Electron-builder 会在封装前公证应用并钉票，然后签署 DMG。DMG 的 artifact-completion hook 随后会公证它并钉票，再要求其身份、票据与 Gatekeeper 验证全部通过；只有 hook 成功，electron-builder 才能发布该文件。私钥可以来自登录钥匙串或 electron-builder 的标准 `CSC_LINK` 输入；环境中的 `CSC_NAME` 与证书发现顺序都不能选择发布所有者。公证凭据也可以使用 electron-builder 支持的完整 Apple ID 或钥匙串 profile 方式。手动执行 `pnpm --dir apps/desktop run verify:mac-signature -- <path-to-app>` 重复应用检查时，也必须提供两个 macOS 身份变量。
+macOS 配置使用必填发布环境，不会接受钥匙串中最先发现的证书。空值、格式错误的 Team ID、包含 electron-builder 不支持的 `Developer ID Application:` 前缀的签名身份，以及不完整的公证凭据都会被拒绝。macOS 打包要求已配置的身份及其私钥可用。运行时准备会把该身份、安全时间戳与 hardened runtime 应用到每个内嵌 Mach-O 文件；应用签名完成后，深度严格检查会拒绝其他叶证书 Authority 或 Team ID，验证通过才生成发布产物。macOS 固定目标安装包命令为已签名应用创建独立副本，并发执行两条产物流。一路先公证 App 并钉票，再生成 ZIP 及其更新元数据。另一路把已签名 App 副本封装进签名 DMG，再公证 DMG、钉票并验证；其中的 App 不单独附加票据。只有两路均成功结束，产物才会移入最终目录并写入发布完成记录。仅生成目录的命令仍会公证 App 并钉票。[并行公证决策](../../.agents/notes/implemented/process/2026-09-09-parallel-macos-notarization.zh.md)负责副本隔离与容器票据语义。私钥可以来自登录钥匙串或 electron-builder 的标准 `CSC_LINK` 输入；环境中的 `CSC_NAME` 与证书发现顺序都不能选择发布所有者。公证凭据也可以使用 electron-builder 支持的完整 Apple ID 或钥匙串 profile 方式。手动执行 `pnpm --dir apps/desktop run verify:mac-signature -- <path-to-app>` 重复应用检查时，也必须提供两个 macOS 身份变量。
 
 macOS 签名遍历真实文件，不跟随 Framework 的软链接别名。PAK 资源保留全部随附语言，由外层 Framework 或应用签名记录完整性，不逐个签名。[发布策略](../../.agents/notes/implemented/architecture/2026-08-25-electron-desktop-packaging-and-updates.zh.md)负责依赖补丁和验证要求。
 
+可通过公司代理加速向 Apple 公证服务上传。代理配置参见公司内部文档。
+
 ### Windows EV 签名
 
 Windows 发布打包要求 `DSH_DESKTOP_WINDOWS_CER_FILE` 标识公开的 GlobalSign EV 叶证书，要求 `DSH_DESKTOP_WINDOWS_SIGNTOOL` 标识与 SafeNet 兼容的 SignTool 可执行文件，要求 `DSH_DESKTOP_WINDOWS_KEY_CONTAINER` 标识匹配的私钥容器，并要求 `DSH_DESKTOP_WINDOWS_TOKEN_PIN` 包含 SafeNet Token Password。证书文件保留在源码仓库之外，匹配的私钥仍位于 USB Token。运行固定 Windows 目标前设置这四个输入：
diff --git a/apps/desktop/scripts/package-macos.ts b/apps/desktop/scripts/package-macos.ts
new file mode 100644
index 0000000000..382e52b150
--- /dev/null
+++ b/apps/desktop/scripts/package-macos.ts
@@ -0,0 +1,121 @@
+/** Build the ZIP and DMG from separate signed application copies with overlapping notarization. */
+
+import { execFile } from 'node:child_process'
+import { mkdtemp, rename, rm, stat } from 'node:fs/promises'
+import { basename, dirname, join } from 'node:path'
+import { promisify } from 'node:util'
+import { Arch, getArchSuffix } from 'electron-builder'
+import { notarize } from '@electron/notarize'
+import {
+  resolveMacOSNotarizationEnvironment,
+  resolveMacOSSigningEnvironment,
+} from './desktop-release-environment.mjs'
+import { desktopUpdateMetadataFilename } from './desktop-auto-update-environment.mjs'
+import { verifyMacOSNotarizedApplication, verifyMacOSSignature } from './verify-macos-signature.mjs'
+
+const execute = promisify(execFile)
+
+/** One electron-builder artifact made from an already signed application. */
+export interface DesktopPrepackagedArtifact {
+  readonly format: 'dmg' | 'zip'
+  readonly appPath: string
+  readonly output: string
+}
+
+/** A signed macOS directory build and its final release destination. */
+export interface MacOSArtifactRequest {
+  readonly arch: 'arm64' | 'x64'
+  readonly version: string
+  readonly artifactsRoot: string
+  readonly environment: NodeJS.ProcessEnv
+}
+
+/** Apple-tool operations replaced by deterministic fixtures in orchestration tests. */
+export interface MacOSArtifactOperations {
+  readonly copyApp: (source: string, destination: string) => Promise<void>
+  readonly notarize: (options: ReturnType<typeof resolveMacOSNotarizationEnvironment> & { appPath: string }) => Promise<void>
+  readonly verifySignature: typeof verifyMacOSSignature
+  readonly verifyNotarization: typeof verifyMacOSNotarizedApplication
+}
+
+const operations: MacOSArtifactOperations = {
+  async copyApp(source, destination) {
+    await execute('/usr/bin/ditto', [source, destination])
+  },
+  notarize,
+  verifySignature: verifyMacOSSignature,
+  verifyNotarization: verifyMacOSNotarizedApplication,
+}
+
+async function timed(label: string, action: () => Promise<void>): Promise<void> {
+  const start = performance.now()
+  process.stdout.write(`desktop macOS packaging: ${label} started at ${new Date().toISOString()}\n`)
+  await action()
+  process.stdout.write(`desktop macOS packaging: ${label} completed in ${((performance.now() - start) / 1000).toFixed(2)}s\n`)
+}
+
+/**
+ * Notarize independent App/DMG copies concurrently, then promote their completed artifacts.
+ * Both lanes settle before cleanup or rejection. The ZIP contains a stapled App; the DMG
+ * carries its own ticket and encloses the signed App without an individually stapled ticket.
+ * @param request - Signed directory build, release version, architecture, and credentials.
+ * @param build - Runs electron-builder to completion with publishing disabled.
+ * @param apple - Apple signing, copying, and notarization operations.
+ * @returns Resolves after both qualified payloads, ZIP metadata, and the stapled App are in the final directory.
+ */
+export async function packageMacOSArtifacts(
+  request: MacOSArtifactRequest,
+  build: (artifact: DesktopPrepackagedArtifact) => Promise<void>,
+  apple: MacOSArtifactOperations = operations,
+): Promise<void> {
+  const { arch, version, artifactsRoot, environment } = request
+  const expected = resolveMacOSSigningEnvironment(environment)
+  const credentials = resolveMacOSNotarizationEnvironment(environment)
+  const appPath = join(artifactsRoot, `mac${getArchSuffix(Arch[arch])}`, 'DeepSeek Harness.app')
+  const root = await mkdtemp(join(dirname(artifactsRoot), 'notarization-'))
+  const zipApp = join(root, 'zip', basename(appPath))
+  const dmgApp = join(root, 'dmg', basename(appPath))
+  const zipOutput = join(root, 'zip-artifacts')
+  const dmgOutput = join(root, 'dmg-artifacts')
+  try {
+    await apple.copyApp(appPath, zipApp)
+    await apple.copyApp(appPath, dmgApp)
+    apple.verifySignature(zipApp, expected)
+    apple.verifySignature(dmgApp, expected)
+    const results = await Promise.allSettled([
+      timed('App notarization and ZIP', async () => {
+        await apple.notarize({ appPath: zipApp, ...credentials })
+        apple.verifyNotarization(zipApp, expected)
+        await build({ format: 'zip', appPath: zipApp, output: zipOutput })
+      }),
+      timed('DMG creation and notarization', async () => {
+        await build({ format: 'dmg', appPath: dmgApp, output: dmgOutput })
+      }),
+    ])
+    const failures = results.filter(result => result.status === 'rejected')
+    if (failures.length > 0) {
+      throw new AggregateError(failures.map(result => result.reason), 'desktop macOS packaging: artifact lanes failed')
+    }
+    const base = `deepseek-harness-${version}-mac-${arch}`
+    const artifacts = [
+      [dmgOutput, `${base}.dmg`],
+      [zipOutput, `${base}.zip`],
+      [zipOutput, `${base}.zip.blockmap`],
+      [zipOutput, desktopUpdateMetadataFilename(version, 'darwin')],
+    ] as const
+    for (const [output, filename] of artifacts) {
+      const file = join(output, filename)
+      const details = await stat(file)
+      if (!details.isFile() || details.size === 0) {
+        throw new Error(`desktop macOS packaging: missing or empty artifact ${file}`)
+      }
+    }
+    for (const [output, filename] of artifacts) {
+      await rename(join(output, filename), join(artifactsRoot, filename))
+    }
+    await rm(appPath, { recursive: true })
+    await rename(zipApp, appPath)
+  } finally {
+    await rm(root, { recursive: true, force: true })
+  }
+}
diff --git a/apps/desktop/scripts/package-target.ts b/apps/desktop/scripts/package-target.ts
index c5b0bc2667..74d80fd1ae 100644
--- a/apps/desktop/scripts/package-target.ts
+++ b/apps/desktop/scripts/package-target.ts
@@ -9,6 +9,7 @@ import {
   resolveDesktopAutoUpdateConfig,
 } from './desktop-auto-update-environment.mjs'
 import { desktopTargetBuildPaths } from './desktop-build-paths.mjs'
+import { packageMacOSArtifacts, type DesktopPrepackagedArtifact } from './package-macos.ts'
 
 const APP_ROOT = resolve(import.meta.dirname, '..')
 const REPOSITORY_ROOT = resolve(APP_ROOT, '..', '..')
@@ -193,11 +194,13 @@ export function parseDesktopPackageInvocation(
  * Build the electron-builder command arguments for one validated target.
  * @param target - Supported release target.
  * @param directory - Whether to stop at an unpacked application directory.
+ * @param artifact - Optional single artifact built from an existing signed application.
  * @returns Arguments that keep publishing under the separate validated upload command.
  */
 export function desktopElectronBuilderArguments(
   target: DesktopPackageTarget,
   directory: boolean,
+  artifact?: DesktopPrepackagedArtifact,
 ): readonly string[] {
   return [
     'exec',
@@ -205,10 +208,15 @@ export function desktopElectronBuilderArguments(
     '--config',
     'electron-builder.config.mjs',
     target.builderPlatform,
+    ...(artifact === undefined ? [] : [artifact.format]),
     target.builderArch,
     '--publish',
     'never',
     ...(directory ? ['--dir'] : []),
+    ...(artifact === undefined ? [] : [
+      '--prepackaged', artifact.appPath,
+      '--config.directories.output', artifact.output,
+    ]),
   ]
 }
 
@@ -278,7 +286,20 @@ async function main(): Promise<void> {
   await runPnpm(['run', 'prepare:packages'], targetEnv)
   await runPnpm(['run', 'prepare:dsh'], targetEnv)
   if (invocation.prepareOnly) return
-  await runPnpm(desktopElectronBuilderArguments(target, invocation.directory), electronBuilderEnv)
+  if (target.platform === 'darwin' && !invocation.directory) {
+    await runPnpm([
+      ...desktopElectronBuilderArguments(target, true),
+      '--config.mac.notarize=false',
+    ], electronBuilderEnv)
+    await packageMacOSArtifacts({
+      arch: target.arch,
+      version: packageVersion(join(APP_ROOT, 'package.json'), 'desktop package'),
+      artifactsRoot: buildPaths.artifacts,
+      environment: electronBuilderEnv,
+    }, artifact => runPnpm(desktopElectronBuilderArguments(target, false, artifact), electronBuilderEnv))
+  } else {
+    await runPnpm(desktopElectronBuilderArguments(target, invocation.directory), electronBuilderEnv)
+  }
   if (!invocation.directory) writeReleaseRecord(target, electronBuilderEnv, buildPaths.artifacts)
 }
 
diff --git a/apps/desktop/scripts/verify-macos-signature.d.mts b/apps/desktop/scripts/verify-macos-signature.d.mts
index e7ed5d5f6e..a5d0451092 100644
--- a/apps/desktop/scripts/verify-macos-signature.d.mts
+++ b/apps/desktop/scripts/verify-macos-signature.d.mts
@@ -41,6 +41,13 @@ export function verifyMacOSRuntimeCode(path: string, expected: MacOSSigningEnvir
  */
 export function verifyMacOSSignature(appPath: string, expected: MacOSSigningEnvironment): void
 
+/**
+ * Verify an independently distributed application's signature, ticket, and Gatekeeper acceptance.
+ * @param appPath - Path to the stapled `.app` directory.
+ * @param expected - Public release identity.
+ */
+export function verifyMacOSNotarizedApplication(appPath: string, expected: MacOSSigningEnvironment): void
+
 /**
  * Verify the release identity, stapled ticket, and Gatekeeper acceptance of one disk image.
  * @param diskImagePath - Path to the packaged `.dmg` file.
diff --git a/apps/desktop/scripts/verify-macos-signature.mjs b/apps/desktop/scripts/verify-macos-signature.mjs
index af0d6196ae..13d881f2fc 100644
--- a/apps/desktop/scripts/verify-macos-signature.mjs
+++ b/apps/desktop/scripts/verify-macos-signature.mjs
@@ -147,6 +147,18 @@ export function verifyMacOSSignature(appPath, expected) {
   assertMacOSSignatureDetails(details, expected)
 }
 
+/**
+ * Verify an independently distributed application's signature, ticket, and Gatekeeper acceptance.
+ * @param {string} appPath - Path to the stapled `.app` directory.
+ * @param {{ signingIdentity: string, teamId: string }} expected - Public release identity.
+ * @returns {void}
+ */
+export function verifyMacOSNotarizedApplication(appPath, expected) {
+  verifyMacOSSignature(appPath, expected)
+  runAppleCommand('/usr/bin/xcrun', ['stapler', 'validate', appPath], 'stapler validate')
+  runAppleCommand('/usr/sbin/spctl', ['--assess', '--type', 'execute', '--verbose=4', appPath], 'spctl')
+}
+
 /**
  * Verify the release identity, stapled ticket, and Gatekeeper acceptance of one disk image.
  * @param {string} diskImagePath - Path to the packaged `.dmg` file.
diff --git a/apps/desktop/tests/package-macos.spec.ts b/apps/desktop/tests/package-macos.spec.ts
new file mode 100644
index 0000000000..a8f961c3de
--- /dev/null
+++ b/apps/desktop/tests/package-macos.spec.ts
@@ -0,0 +1,188 @@
+/** Exercise notarization overlap and artifact isolation without Apple credentials or network. */
+
+import { cp, mkdir, mkdtemp, readFile, readdir, rm, writeFile } from 'node:fs/promises'
+import { existsSync } from 'node:fs'
+import { tmpdir } from 'node:os'
+import { dirname, join } from 'node:path'
+import { describe, expect, it, vi } from 'vitest'
+import {
+  packageMacOSArtifacts,
+  type DesktopPrepackagedArtifact,
+  type MacOSArtifactOperations,
+} from '../scripts/package-macos.ts'
+import { desktopElectronBuilderArguments, resolveDesktopPackageTarget } from '../scripts/package-target.ts'
+
+const environment = {
+  DSH_DESKTOP_MACOS_SIGNING_IDENTITY: 'Example Company (TEAMID1234)',
+  DSH_DESKTOP_MACOS_TEAM_ID: 'TEAMID1234',
+  APPLE_KEYCHAIN_PROFILE: 'fixture-profile',
+}
+
+function barrier() {
+  let release!: () => void
+  const promise = new Promise<void>((resolve) => { release = resolve })
+  return { promise, release }
+}
+
+async function fixture(arch: 'arm64' | 'x64' = 'arm64') {
+  const root = await mkdtemp(join(tmpdir(), 'desktop-parallel-notarization-'))
+  const artifactsRoot = join(root, 'artifacts')
+  const appPath = join(artifactsRoot, arch === 'arm64' ? 'mac-arm64' : 'mac', 'DeepSeek Harness.app')
+  await mkdir(appPath, { recursive: true })
+  await writeFile(join(appPath, 'payload'), 'signed content')
+  const version = '1.2.3-alpha.1'
+  const base = `deepseek-harness-${version}-mac-${arch}`
+  const request = { arch, artifactsRoot, version, environment }
+  const apple: MacOSArtifactOperations = {
+    copyApp: async (source, destination) => {
+      await cp(source, destination, { recursive: true, verbatimSymlinks: true })
+    },
+    notarize: async ({ appPath: path }) => { await writeFile(join(path, 'ticket'), 'accepted') },
+    verifySignature: vi.fn(),
+    verifyNotarization: vi.fn((path: string) => {
+      if (!existsSync(join(path, 'ticket'))) throw new Error('missing App ticket')
+    }),
+  }
+  const build = async (artifact: DesktopPrepackagedArtifact) => {
+    await mkdir(artifact.output, { recursive: true })
+    const contents = JSON.stringify({
+      payload: await readFile(join(artifact.appPath, 'payload'), 'utf8'),
+      appTicket: existsSync(join(artifact.appPath, 'ticket')),
+    })
+    await writeFile(join(artifact.output, `${base}.${artifact.format}`), contents)
+    if (artifact.format === 'zip') {
+      await writeFile(join(artifact.output, `${base}.zip.blockmap`), 'blockmap')
+      await writeFile(join(artifact.output, 'alpha-mac.yml'), 'update metadata')
+    }
+  }
+  return { root, appPath, request, apple, build, base }
+}
+
+describe('parallel macOS artifacts', () => {
+  it.each(['arm64', 'x64'] as const)('overlaps notarization on isolated %s copies and promotes only completed payloads', async (arch) => {
+    const f = await fixture(arch)
+    const appStarted = barrier()
+    const appAccepted = barrier()
+    const dmgCompleted = barrier()
+    const zipCompleted = barrier()
+    const starts: string[] = []
+    const copies: string[] = []
+    const operation = packageMacOSArtifacts(f.request, async (artifact) => {
+      starts.push(artifact.format)
+      if (artifact.format === 'dmg') await dmgCompleted.promise
+      await f.build(artifact)
+      if (artifact.format === 'zip') zipCompleted.release()
+    }, {
+      ...f.apple,
+      copyApp: async (source, destination) => {
+        copies.push(destination)
+        await f.apple.copyApp(source, destination)
+      },
+      notarize: async (options) => {
+        starts.push('app')
+        appStarted.release()
+        await appAccepted.promise
+        await f.apple.notarize(options)
+      },
+    })
+    try {
+      await appStarted.promise
+      expect([...starts]).toEqual(['app', 'dmg'])
+      expect(new Set(copies).size).toBe(2)
+      expect(copies.every(path => path !== f.appPath)).toBe(true)
+      appAccepted.release()
+      await zipCompleted.promise
+      expect(existsSync(join(f.appPath, 'ticket'))).toBe(false)
+      expect(existsSync(join(f.request.artifactsRoot, `${f.base}.zip`))).toBe(false)
+      dmgCompleted.release()
+      await operation
+      expect(JSON.parse(await readFile(join(f.request.artifactsRoot, `${f.base}.zip`), 'utf8')))
+        .toEqual({ payload: 'signed content', appTicket: true })
+      expect(JSON.parse(await readFile(join(f.request.artifactsRoot, `${f.base}.dmg`), 'utf8')))
+        .toEqual({ payload: 'signed content', appTicket: false })
+      expect(await readFile(join(f.appPath, 'ticket'), 'utf8')).toBe('accepted')
+      expect((await readdir(f.root)).sort()).toEqual(['artifacts'])
+      expect(f.apple.verifySignature).toHaveBeenCalledTimes(2)
+      expect(f.apple.verifyNotarization).toHaveBeenCalledTimes(1)
+    } finally {
+      appAccepted.release()
+      dmgCompleted.release()
+      try { await operation } finally { await rm(f.root, { recursive: true, force: true }) }
+    }
+  })
+
+  it('collects both failures after both lanes release their copies and publishes neither payload', async () => {
+    const f = await fixture()
+    const appStarted = barrier()
+    const failApp = barrier()
+    const failDmg = barrier()
+    const appError = new Error('App rejected')
+    const dmgError = new Error('DMG rejected')
+    const released: string[] = []
+    const outcome = packageMacOSArtifacts(f.request, async (artifact) => {
+      expect(artifact.format).toBe('dmg')
+      await failDmg.promise
+      expect(await readFile(join(artifact.appPath, 'payload'), 'utf8')).toBe('signed content')
+      released.push('dmg')
+      throw dmgError
+    }, {
+      ...f.apple,
+      notarize: async () => {
+        appStarted.release()
+        await failApp.promise
+        released.push('app')
+        throw appError
+      },
+    }).catch((error: unknown) => error)
+    try {
+      await appStarted.promise
+      failApp.release()
+      failDmg.release()
+      const error = await outcome
+      expect(error).toBeInstanceOf(AggregateError)
+      expect((error as AggregateError).errors).toEqual([appError, dmgError])
+      expect(released.sort()).toEqual(['app', 'dmg'])
+      expect(await readdir(f.root)).toEqual(['artifacts'])
+      expect(await readdir(f.request.artifactsRoot)).toEqual(['mac-arm64'])
+      expect(existsSync(join(f.appPath, 'ticket'))).toBe(false)
+    } finally {
+      failApp.release()
+      failDmg.release()
+      await outcome
+      await rm(f.root, { recursive: true, force: true })
+    }
+  })
+
+  it.each(['copy', 'signature', 'ticket', 'metadata'] as const)('rejects incomplete %s qualification without promoting artifacts', async (failure) => {
+    const f = await fixture()
+    try {
+      const apple: MacOSArtifactOperations = {
+        ...f.apple,
+        ...(failure === 'copy' ? { copyApp: async () => { throw new Error('copy failed') } } : {}),
+        ...(failure === 'signature' ? { verifySignature: () => { throw new Error('signature failed') } } : {}),
+        ...(failure === 'ticket' ? { verifyNotarization: () => { throw new Error('ticket failed') } } : {}),
+      }
+      await expect(packageMacOSArtifacts(f.request, async (artifact) => {
+        await f.build(artifact)
+        if (failure === 'metadata' && artifact.format === 'zip') {
+          await writeFile(join(artifact.output, 'alpha-mac.yml'), '')
+        }
+      }, apple)).rejects.toThrow()
+      expect(await readdir(f.root)).toEqual(['artifacts'])
+      expect(await readdir(f.request.artifactsRoot)).toEqual(['mac-arm64'])
+    } finally { await rm(f.root, { recursive: true, force: true }) }
+  })
+
+  it('passes the actual App and isolated output directory to each single-target builder', () => {
+    const target = resolveDesktopPackageTarget('mac-arm64', 'darwin', 'arm64')
+    for (const format of ['zip', 'dmg'] as const) {
+      const appPath = join('private build', format, 'DeepSeek Harness.app')
+      const output = join(dirname(appPath), 'artifacts')
+      expect(desktopElectronBuilderArguments(target, false, { format, appPath, output })).toEqual([
+        'exec', 'electron-builder', '--config', 'electron-builder.config.mjs',
+        '--mac', format, '--arm64', '--publish', 'never',
+        '--prepackaged', appPath, '--config.directories.output', output,
+      ])
+    }
+  })
+})

From 529434e1dfe2a25a2cfa1af64d039aaa4a3a4416 Mon Sep 17 00:00:00 2001
From: turtle1999 <turtle1999@deepseek.com>
Date: Thu, 10 Sep 2026 16:28:45 +0800
Subject: [PATCH 13/32] fix(ci): admit any `.css` refusal for the dockkit
 corpus exemption

The built-bundle import sweep pinned the Dockkit exemption to
`packages/client/ui-dockkit/lib/components/dockkit.module.css`, but the built
bundle imports `@deepseek-ai/dsh-client-ui-primitives` before its own
stylesheet, and the tsx launcher resolves that specifier through tsconfig
`paths` into the dependency's `src` tree. The sweep therefore reports
`packages/client/ui-primitives/src/StateDot.module.css`, so the pinned path can
never match where client build output exists; the Windows complete-gate
inventory reports the exempt bundle as an unexpected baseline failure.

Admit Node's unknown-`.css`-extension refusal for any stylesheet and keep every
other failure a finding. The classification controls cover an admitted Dockkit
stylesheet, the dependency's source stylesheet, another extension, an arbitrary
message, another error code, and a stale exemption.

Agent Note: .agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.md
---
 ...09-10-built-bundle-css-exemption.i18n.yaml |  6 +++++
 .../2026-09-10-built-bundle-css-exemption.md  | 27 +++++++++++++++++++
 ...026-09-10-built-bundle-css-exemption.zh.md | 27 +++++++++++++++++++
 ...09-08-ci-completion-observations.i18n.yaml |  4 +--
 .../2026-09-08-ci-completion-observations.md  |  2 +-
 ...026-09-08-ci-completion-observations.zh.md |  2 +-
 .../webworker-runtime/README.i18n.yaml        |  4 +--
 .../experimental/webworker-runtime/README.md  |  2 +-
 .../webworker-runtime/README.zh.md            |  2 +-
 .../tests/compile/transform-corpus-check.ts   | 21 +++++++++++----
 .../tests/compile/transform-corpus.spec.ts    | 18 ++++++++++---
 11 files changed, 98 insertions(+), 17 deletions(-)
 create mode 100644 .agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.i18n.yaml
 create mode 100644 .agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.md
 create mode 100644 .agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.zh.md

diff --git a/.agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.i18n.yaml b/.agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.i18n.yaml
new file mode 100644
index 0000000000..4fdb59676b
--- /dev/null
+++ b/.agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.i18n.yaml
@@ -0,0 +1,6 @@
+# Bilingual-pair consistency record (docs/i18n/README.md): the git blob hash of each
+# side as of the last confirmed-consistent state. Both languages carry equal authority;
+# after editing either side, bring the other along and re-record with:
+#   pnpm run verify-translation-pairing --write .agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.md
+2026-09-10-built-bundle-css-exemption.md: 81ff2770c675675cc43b34ecbad2b03fb1b2e34b
+2026-09-10-built-bundle-css-exemption.zh.md: 77de7138017ca053eda0ed0d6b16f2e32c5a5857
diff --git a/.agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.md b/.agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.md
new file mode 100644
index 0000000000..81ff2770c6
--- /dev/null
+++ b/.agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.md
@@ -0,0 +1,27 @@
+# Agent Note: Built-bundle exemption for a failing stylesheet
+
+Status: implemented
+
+English | [中文](2026-09-10-built-bundle-css-exemption.zh.md)
+
+## Problem
+
+The [Node import sweep](../../../../packages/experimental/webworker-runtime/tests/compile/transform-corpus-check.ts) exempts the Dockkit bundle because Node cannot load its stylesheets, and admitted one exact stylesheet path as the evidence: `packages/client/ui-dockkit/lib/components/dockkit.module.css`. The built bundle imports the workspace package `@deepseek-ai/dsh-client-ui-primitives` before its own stylesheet, and the `tsx` launcher resolves that specifier through tsconfig `paths` into the dependency's `src` tree, so the sweep reports `ERR_UNKNOWN_FILE_EXTENSION` for `packages/client/ui-primitives/src/StateDot.module.css`. The pinned path cannot match on a tree with client build output, and the Windows complete-gate inventory reported the exempt bundle as an unexpected baseline failure.
+
+## Decision
+
+The Dockkit exemption admits Node's unknown-`.css`-extension refusal for any stylesheet. Another extension, another error code, and an unrelated error message stay findings, as does an exempt bundle that imports cleanly.
+
+## Alternatives considered
+
+**Admit the dependency's source stylesheet alongside the pinned one.** That file is what the sweep reports, but the bundle's import order and the launcher's path mapping select it. Pinning it would certify those two details instead of the `.css` exemption.
+
+**Classify every CSS exemption by the same rule.** The Dockkit pin is the recorded evidence this change corrects; the other two stylesheet exemptions were never classified, and tightening them would change what they admit beyond the reported defect.
+
+**Drop the classification and admit any failure.** A bundle that stopped importing for an unrelated reason would then hide inside the exemption total.
+
+## Consequences
+
+The sweep reports the Dockkit bundle when it stops importing for any reason other than a `.css` import, and the entry no longer asserts which stylesheet fails. [Scoped resolve/load hooks](../../../../packages/experimental/webworker-runtime/tests/compile/transform-corpus.spec.ts) exercise an admitted Dockkit stylesheet, the dependency's source stylesheet, another extension, an arbitrary message, another error code, and a stale exemption without modifying shared build artifacts.
+
+The [CI observation decision](../testing/2026-09-08-ci-completion-observations.md) keeps the fixture completion and isolation decisions it owns; its built-client classification paragraph keeps the sweep summary and links here for the admitted evidence.
diff --git a/.agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.zh.md b/.agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.zh.md
new file mode 100644
index 0000000000..77de713801
--- /dev/null
+++ b/.agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.zh.md
@@ -0,0 +1,27 @@
+# Agent Note: 构建产物豁免以失败的样式表为准
+
+Status: implemented
+
+[English](2026-09-10-built-bundle-css-exemption.md) | 中文
+
+## 问题
+
+[Node import sweep](../../../../packages/experimental/webworker-runtime/tests/compile/transform-corpus-check.ts)因 Node 无法加载 Dockkit bundle 的样式表而豁免该 bundle，并曾以一个精确的样式表路径作为接受证据：`packages/client/ui-dockkit/lib/components/dockkit.module.css`。该已构建 bundle 在导入自身样式表之前先导入 workspace 包 `@deepseek-ai/dsh-client-ui-primitives`，`tsx` 启动器又通过 tsconfig `paths` 把这个说明符解析进依赖的 `src` 树，因此 sweep 报告的是 `packages/client/ui-primitives/src/StateDot.module.css` 的 `ERR_UNKNOWN_FILE_EXTENSION`。固定路径在带有 client 构建输出的树上无法匹配，Windows 完整门禁的清单于是把这个豁免 bundle 报告为意外的基线失败。
+
+## 决策
+
+Dockkit 豁免接受 Node 对任意样式表因未知 `.css` 扩展名而拒绝加载。其他扩展名、其他错误码和无关的错误消息仍计为发现，能顺利完成导入的豁免 bundle 同样计为发现。
+
+## 考虑过的替代方案
+
+**在固定路径之外同时接受依赖的源样式表。** sweep 报告的正是该文件，但选中它的是 bundle 的导入顺序和启动器的路径映射。固定该路径认定的将是这两处细节，而非 `.css` 豁免。
+
+**用同一规则分类每个 CSS 豁免。** Dockkit 固定路径是本次修改所纠正的已记录证据；另外两个样式表豁免从未被分类，收窄它们会在所报告缺陷之外改变其接受的内容。
+
+**放弃分类，接受任何失败。** 届时因无关原因停止导入的 bundle 会隐藏在豁免总数之内。
+
+## 后果
+
+只要 Dockkit bundle 因 `.css` 导入之外的任何原因停止导入，sweep 就会报告它，该条目也不再断言失败的是哪个样式表。[限定范围的 resolve/load hook](../../../../packages/experimental/webworker-runtime/tests/compile/transform-corpus.spec.ts)覆盖被接受的 Dockkit 样式表、依赖的源样式表、其他扩展名、任意消息、其他错误码和陈旧豁免，不修改共享构建产物。
+
+[CI 观察决策](../testing/2026-09-08-ci-completion-observations.zh.md)保留其拥有的 fixture 完成与隔离决策；其已构建 Client 导入分类段落保留 sweep 摘要，并就被接受的证据链接到本文。
diff --git a/.agents/notes/implemented/testing/2026-09-08-ci-completion-observations.i18n.yaml b/.agents/notes/implemented/testing/2026-09-08-ci-completion-observations.i18n.yaml
index c5a83678cc..0409fff118 100644
--- a/.agents/notes/implemented/testing/2026-09-08-ci-completion-observations.i18n.yaml
+++ b/.agents/notes/implemented/testing/2026-09-08-ci-completion-observations.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write .agents/notes/implemented/testing/2026-09-08-ci-completion-observations.md
-2026-09-08-ci-completion-observations.md: 8af4685a5e2c51c1edf4a41b47088916223e7a6c
-2026-09-08-ci-completion-observations.zh.md: e3147bb7ac39877b46820862e9af4645803a37a2
+2026-09-08-ci-completion-observations.md: e3de87a70419778407b5eb230cec64ce088dd0c0
+2026-09-08-ci-completion-observations.zh.md: 4e95d6fb9dc9b1ecac2e3d0dfa262b819de16261
diff --git a/.agents/notes/implemented/testing/2026-09-08-ci-completion-observations.md b/.agents/notes/implemented/testing/2026-09-08-ci-completion-observations.md
index 8af4685a5e..e3de87a704 100644
--- a/.agents/notes/implemented/testing/2026-09-08-ci-completion-observations.md
+++ b/.agents/notes/implemented/testing/2026-09-08-ci-completion-observations.md
@@ -30,7 +30,7 @@ The [LSP backpressure test](../../../../packages/lsp/lsp-stdio/tests/instance.sp
 
 ### Built-client import classification
 
-The [Node import sweep](../../../../packages/experimental/webworker-runtime/tests/compile/transform-corpus-check.ts) admits the Dockkit bundle only when Node reports `ERR_UNKNOWN_FILE_EXTENSION` for its exact `dockkit.module.css` path. Other errors and unexpectedly successful exempt imports fail. Scoped resolve/load hooks exercise expected CSS failure, arbitrary failure, another stylesheet, another error code, and stale exemption without modifying shared build artifacts.
+The [Node import sweep](../../../../packages/experimental/webworker-runtime/tests/compile/transform-corpus-check.ts) admits the Dockkit bundle only when Node reports `ERR_UNKNOWN_FILE_EXTENSION` for a `.css` file, and fails every other error and every unexpectedly successful exempt import; the [stylesheet exemption decision](../bug-fix/2026-09-10-built-bundle-css-exemption.md) owns which stylesheets that covers. Scoped resolve/load hooks exercise expected CSS failure, another stylesheet, another extension, arbitrary failure, another error code, and stale exemption without modifying shared build artifacts.
 
 ## Alternatives considered
 
diff --git a/.agents/notes/implemented/testing/2026-09-08-ci-completion-observations.zh.md b/.agents/notes/implemented/testing/2026-09-08-ci-completion-observations.zh.md
index e3147bb7ac..4e95d6fb9d 100644
--- a/.agents/notes/implemented/testing/2026-09-08-ci-completion-observations.zh.md
+++ b/.agents/notes/implemented/testing/2026-09-08-ci-completion-observations.zh.md
@@ -30,7 +30,7 @@ Status: implemented
 
 ### 已构建 Client 的导入分类
 
-[Node import sweep](../../../../packages/experimental/webworker-runtime/tests/compile/transform-corpus-check.ts)只有在 Node 针对准确的 `dockkit.module.css` 路径报告 `ERR_UNKNOWN_FILE_EXTENSION` 时才接受 Dockkit bundle。其他错误以及意外成功的豁免导入都会失败。限定范围的 resolve/load hook 覆盖预期 CSS 失败、任意失败、其他 stylesheet、其他错误码和过期豁免，不修改共享构建产物。
+[Node import sweep](../../../../packages/experimental/webworker-runtime/tests/compile/transform-corpus-check.ts)只有在 Node 针对某个 `.css` 文件报告 `ERR_UNKNOWN_FILE_EXTENSION` 时才接受 Dockkit bundle，其他每个错误以及每个意外成功的豁免导入都会失败；该豁免覆盖哪些样式表由[样式表豁免决策](../bug-fix/2026-09-10-built-bundle-css-exemption.zh.md)拥有。限定范围的 resolve/load hook 覆盖预期 CSS 失败、其他样式表、其他扩展名、任意失败、其他错误码和陈旧豁免，不修改共享构建产物。
 
 ## 考虑过的替代方案
 
diff --git a/packages/experimental/webworker-runtime/README.i18n.yaml b/packages/experimental/webworker-runtime/README.i18n.yaml
index ea8de3d587..79bc2c7587 100644
--- a/packages/experimental/webworker-runtime/README.i18n.yaml
+++ b/packages/experimental/webworker-runtime/README.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write packages/experimental/webworker-runtime/README.md
-README.md: 67604adeb60f83953bc7c6841aa5d3d85ca38448
-README.zh.md: 985345efc3bc4fe63226a3e76b3432fa4bde06fa
+README.md: 072194713d3038fd714855c13a05dc213d20f4b1
+README.zh.md: 79f17edb958516dab94b42869a3a6d6cf11cb8b9
diff --git a/packages/experimental/webworker-runtime/README.md b/packages/experimental/webworker-runtime/README.md
index 67604adeb6..072194713d 100644
--- a/packages/experimental/webworker-runtime/README.md
+++ b/packages/experimental/webworker-runtime/README.md
@@ -32,7 +32,7 @@ Three build artifacts and one source-owned process layer:
 
 Acceptance lives in `apps/web/tests/preview-boot.e2e.ts`, which serves the real built pages and drives the pre-boot chooser plus Worker activation in headless Chromium. The empty selection exercises first-run startup. The `vfs-example` overlay supplies ordinary workspace files and plaintext persistence artifacts for cold Workspace/Session discovery, tool presentation, subagent navigation, and history paging without a model request. The fixture generator owns current-generation logs and the projection cache; committed predecessor logs remain byte-identical alongside them. The chooser reserves WebFS as a separate user-authorized source; that provider does not read the built-in fixture.
 
-The [built-bundle import sweep](tests/compile/transform-corpus-check.ts) checks bare Node imports after the library build. Its Dockkit exception accepts only Node’s unknown-extension error for the expected stylesheet; other failures and unexpectedly successful exempt imports remain errors. See the [CI observation decision](../../../.agents/notes/implemented/testing/2026-09-08-ci-completion-observations.md).
+The [built-bundle import sweep](tests/compile/transform-corpus-check.ts) checks bare Node imports after the library build. Its Dockkit exception accepts Node’s unknown-`.css`-extension refusal for any stylesheet rather than one pinned path; another extension or error code, and an unexpectedly successful exempt import, remain errors. See the [stylesheet exemption decision](../../../.agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.md).
 
 -----
 
diff --git a/packages/experimental/webworker-runtime/README.zh.md b/packages/experimental/webworker-runtime/README.zh.md
index 985345efc3..79f17edb95 100644
--- a/packages/experimental/webworker-runtime/README.zh.md
+++ b/packages/experimental/webworker-runtime/README.zh.md
@@ -32,7 +32,7 @@ kind: "package-library"
 
 验收在 `apps/web/tests/preview-boot.e2e.ts`：静态服务真实构建页面，在 headless Chromium 里驱动 pre-boot 选择面板与 Worker 激活。空白选择验证首次启动；`vfs-example` overlay 提供普通 workspace 文件与明文 persistence 产物，无需模型请求即可验证 Workspace/Session 冷发现、工具呈现、subagent 导航和历史分页。fixture 生成器负责当前代日志与投影缓存；已提交的前代日志逐字节保持不变，与它们并存。选择面板为 WebFS 保留独立的用户授权来源；该 provider 不读取内置 fixture。
 
-[已构建 bundle 导入检查](tests/compile/transform-corpus-check.ts)在库构建后检查裸 Node 导入。Dockkit 例外仅接受 Node 针对预期样式表报告的未知扩展名错误；其他失败以及意外成功的豁免导入仍然报错。参见 [CI 观察决策](../../../.agents/notes/implemented/testing/2026-09-08-ci-completion-observations.zh.md)。
+[已构建 bundle 导入检查](tests/compile/transform-corpus-check.ts)在库构建后检查裸 Node 导入。Dockkit 例外接受 Node 针对任意样式表报告的未知 `.css` 扩展名错误，而不限定某一固定路径；其他扩展名或错误码，以及意外成功的豁免导入，仍然报错。参见 [样式表豁免决策](../../../.agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.zh.md)。
 
 -----
 
diff --git a/packages/experimental/webworker-runtime/tests/compile/transform-corpus-check.ts b/packages/experimental/webworker-runtime/tests/compile/transform-corpus-check.ts
index 377166ee1b..4139846db2 100644
--- a/packages/experimental/webworker-runtime/tests/compile/transform-corpus-check.ts
+++ b/packages/experimental/webworker-runtime/tests/compile/transform-corpus-check.ts
@@ -24,7 +24,6 @@ import { fileURLToPath, pathToFileURL } from 'node:url'
 
 const repositoryRoot = fileURLToPath(new URL('../../../../../', import.meta.url))
 const DOCKKIT_BUNDLE = 'packages/client/ui-dockkit/lib/index.js'
-const DOCKKIT_CSS = join(repositoryRoot, 'packages/client/ui-dockkit/lib/components/dockkit.module.css')
 
 /**
  * Files Node's ESM loader cannot import in this repository. None is a finding:
@@ -34,6 +33,11 @@ const DOCKKIT_CSS = join(repositoryRoot, 'packages/client/ui-dockkit/lib/compone
  * imports the win32-process package earlier in the serial sweep (a distinct
  * module instance under its node_modules URL), so win32-process's own file-URL
  * import re-registers koffi's type names and fails as the second load.
+ *
+ * The Dockkit entry admits only Node's refusal of a `.css` import, not one
+ * exact stylesheet: the swept bundle's first unresolvable stylesheet depends on
+ * its import graph and on how the launcher resolves workspace packages, so a
+ * pinned path would certify an import order instead of the `.css` exemption.
  */
 const BASELINE_EXEMPT: ReadonlyMap<string, string> = new Map([
   [DOCKKIT_BUNDLE, 'imports .css, which bare Node cannot load'],
@@ -95,6 +99,16 @@ function discover(): string[] {
  */
 const relative = (path: string): string => path.slice(repositoryRoot.length).replaceAll('\\', '/')
 
+/**
+ * @param reason - the value the corpus import rejected with.
+ * @returns whether bare Node refused a `.css` import, the failure the Dockkit
+ * exemption admits.
+ */
+const isUnknownCssExtension = (reason: unknown): boolean =>
+  reason instanceof Error
+  && 'code' in reason && reason.code === 'ERR_UNKNOWN_FILE_EXTENSION'
+  && reason.message.startsWith('Unknown file extension ".css" for ')
+
 const files = process.argv.slice(2).length > 0
   ? process.argv.slice(2).map(path => (path.startsWith('/') ? path : join(process.cwd(), path)))
   : discover()
@@ -111,10 +125,7 @@ if (files.length === 0) {
     try {
       await import(pathToFileURL(file).href)
     } catch (reason) {
-      const expectedDockkitCss = reason instanceof Error
-        && 'code' in reason && reason.code === 'ERR_UNKNOWN_FILE_EXTENSION'
-        && reason.message === `Unknown file extension ".css" for ${DOCKKIT_CSS}`
-      if (exemption === undefined || (key === DOCKKIT_BUNDLE && !expectedDockkitCss)) {
+      if (exemption === undefined || (key === DOCKKIT_BUNDLE && !isUnknownCssExtension(reason))) {
         // A bundle that stopped being importable is a real finding, so it
         // fails rather than joining a tolerated total.
         fail(`- UNEXPECTED BASELINE FAILURE ${key}: ${(reason as Error).message.split('\n')[0]}`)
diff --git a/packages/experimental/webworker-runtime/tests/compile/transform-corpus.spec.ts b/packages/experimental/webworker-runtime/tests/compile/transform-corpus.spec.ts
index 8f8819b454..e09ca108e0 100644
--- a/packages/experimental/webworker-runtime/tests/compile/transform-corpus.spec.ts
+++ b/packages/experimental/webworker-runtime/tests/compile/transform-corpus.spec.ts
@@ -32,19 +32,29 @@ test('every built bundle imports under Node', (context) => {
 }, 900_000)
 
 // The hook replaces only the chosen bundle; shared build artifacts stay intact.
+// The admitted evidence is Node's unknown-`.css`-extension refusal whatever
+// stylesheet it names; another extension, error code, or message is a finding.
 test.each([
   ['expected-css', 0, 'baselineExempt=1 unexpectedBaselineFailure=0'],
+  ['other-css', 0, 'baselineExempt=1 unexpectedBaselineFailure=0'],
+  ['other-extension', 1, '- UNEXPECTED BASELINE FAILURE'],
   ['error', 1, '- UNEXPECTED BASELINE FAILURE'],
-  ['other-css', 1, '- UNEXPECTED BASELINE FAILURE'],
   ['other-code', 1, '- UNEXPECTED BASELINE FAILURE'],
   ['clean', 1, '- STALE EXEMPTION'],
 ] as const)('classifies dockkit import: %s', (mode, status, finding) => {
   const root = new URL('../../../../../', import.meta.url)
   const bundle = 'packages/client/ui-dockkit/lib/index.js'
-  const css = fileURLToPath(new URL('packages/client/ui-dockkit/lib/components/dockkit.module.css', root))
+  const cssBase = fileURLToPath(new URL('packages/client/ui-dockkit/lib/components/dockkit.module', root))
+  const extension = mode === 'other-extension' ? '.wasm' : '.css'
+  // The other stylesheet is the dependency's, which the launcher resolves into
+  // its source tree: the sweep reports it where an exact-path admission would
+  // reject the bundle.
+  const file = mode === 'other-css'
+    ? fileURLToPath(new URL('packages/client/ui-primitives/src/StateDot.module.css', root))
+    : `${cssBase}${extension}`
   const message = mode === 'error'
     ? 'dockkit-negative-control'
-    : `Unknown file extension ".css" for ${mode === 'other-css' ? `${css}.other.css` : css}`
+    : `Unknown file extension "${extension}" for ${file}`
   const source = mode === 'clean'
     ? 'export {}'
     : `throw Object.assign(new Error(${JSON.stringify(message)}), { code: ${JSON.stringify(mode === 'other-code' ? 'ERR_OTHER' : 'ERR_UNKNOWN_FILE_EXTENSION')} })`
@@ -74,7 +84,7 @@ test.each([
   expect(finished.signal).toBeNull()
   expect(finished.status, output).toBe(status)
   expect(output).toContain(finding)
-  if (mode === 'error' || mode === 'other-css' || mode === 'other-code') {
+  if (finding.startsWith('- UNEXPECTED BASELINE FAILURE')) {
     expect(output).toContain(`- UNEXPECTED BASELINE FAILURE ${bundle}: ${message}\n`)
   }
 })

From 5a88e5c4b9a809eb18ecb6d5acde99b760599bcd Mon Sep 17 00:00:00 2001
From: turtle1999 <turtle1999@deepseek.com>
Date: Thu, 10 Sep 2026 16:50:43 +0800
Subject: [PATCH 14/32] docs(ci): state the full admitted failure class for the
 dockkit exemption

The package README and the Agent Note named an extension or error code but
omitted the unrelated-message case the classifier also rejects, and the note
loosened "Node's unknown-`.css`-extension refusal" to any non-`.css` failure.
---
 .../bug-fix/2026-09-10-built-bundle-css-exemption.i18n.yaml   | 4 ++--
 .../bug-fix/2026-09-10-built-bundle-css-exemption.md          | 2 +-
 .../bug-fix/2026-09-10-built-bundle-css-exemption.zh.md       | 2 +-
 packages/experimental/webworker-runtime/README.i18n.yaml      | 4 ++--
 packages/experimental/webworker-runtime/README.md             | 2 +-
 packages/experimental/webworker-runtime/README.zh.md          | 2 +-
 6 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/.agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.i18n.yaml b/.agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.i18n.yaml
index 4fdb59676b..4f985d74f7 100644
--- a/.agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.i18n.yaml
+++ b/.agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write .agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.md
-2026-09-10-built-bundle-css-exemption.md: 81ff2770c675675cc43b34ecbad2b03fb1b2e34b
-2026-09-10-built-bundle-css-exemption.zh.md: 77de7138017ca053eda0ed0d6b16f2e32c5a5857
+2026-09-10-built-bundle-css-exemption.md: e5a55689696f885b8ea9411a5b3a7598295fff35
+2026-09-10-built-bundle-css-exemption.zh.md: 1c1aab35df72497946b02bf2a7f67a2271c804e5
diff --git a/.agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.md b/.agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.md
index 81ff2770c6..e5a5568969 100644
--- a/.agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.md
+++ b/.agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.md
@@ -22,6 +22,6 @@ The Dockkit exemption admits Node's unknown-`.css`-extension refusal for any sty
 
 ## Consequences
 
-The sweep reports the Dockkit bundle when it stops importing for any reason other than a `.css` import, and the entry no longer asserts which stylesheet fails. [Scoped resolve/load hooks](../../../../packages/experimental/webworker-runtime/tests/compile/transform-corpus.spec.ts) exercise an admitted Dockkit stylesheet, the dependency's source stylesheet, another extension, an arbitrary message, another error code, and a stale exemption without modifying shared build artifacts.
+The sweep reports the Dockkit bundle when it stops importing for any reason other than Node's unknown-`.css`-extension refusal, and the entry no longer asserts which stylesheet fails. [Scoped resolve/load hooks](../../../../packages/experimental/webworker-runtime/tests/compile/transform-corpus.spec.ts) exercise an admitted Dockkit stylesheet, the dependency's source stylesheet, another extension, an arbitrary message, another error code, and a stale exemption without modifying shared build artifacts.
 
 The [CI observation decision](../testing/2026-09-08-ci-completion-observations.md) keeps the fixture completion and isolation decisions it owns; its built-client classification paragraph keeps the sweep summary and links here for the admitted evidence.
diff --git a/.agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.zh.md b/.agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.zh.md
index 77de713801..1c1aab35df 100644
--- a/.agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.zh.md
+++ b/.agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.zh.md
@@ -22,6 +22,6 @@ Dockkit 豁免接受 Node 对任意样式表因未知 `.css` 扩展名而拒绝
 
 ## 后果
 
-只要 Dockkit bundle 因 `.css` 导入之外的任何原因停止导入，sweep 就会报告它，该条目也不再断言失败的是哪个样式表。[限定范围的 resolve/load hook](../../../../packages/experimental/webworker-runtime/tests/compile/transform-corpus.spec.ts)覆盖被接受的 Dockkit 样式表、依赖的源样式表、其他扩展名、任意消息、其他错误码和陈旧豁免，不修改共享构建产物。
+只要 Dockkit bundle 因 Node 未知 `.css` 扩展名拒绝之外的任何原因停止导入，sweep 就会报告它，该条目也不再断言失败的是哪个样式表。[限定范围的 resolve/load hook](../../../../packages/experimental/webworker-runtime/tests/compile/transform-corpus.spec.ts)覆盖被接受的 Dockkit 样式表、依赖的源样式表、其他扩展名、任意消息、其他错误码和陈旧豁免，不修改共享构建产物。
 
 [CI 观察决策](../testing/2026-09-08-ci-completion-observations.zh.md)保留其拥有的 fixture 完成与隔离决策；其已构建 Client 导入分类段落保留 sweep 摘要，并就被接受的证据链接到本文。
diff --git a/packages/experimental/webworker-runtime/README.i18n.yaml b/packages/experimental/webworker-runtime/README.i18n.yaml
index 79bc2c7587..7abcc672c9 100644
--- a/packages/experimental/webworker-runtime/README.i18n.yaml
+++ b/packages/experimental/webworker-runtime/README.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write packages/experimental/webworker-runtime/README.md
-README.md: 072194713d3038fd714855c13a05dc213d20f4b1
-README.zh.md: 79f17edb958516dab94b42869a3a6d6cf11cb8b9
+README.md: d6291063678c9b9f6cc233ce91d737ffe187c37c
+README.zh.md: 5c3a54a054284ecd2ba227913099533a41fd2605
diff --git a/packages/experimental/webworker-runtime/README.md b/packages/experimental/webworker-runtime/README.md
index 072194713d..d629106367 100644
--- a/packages/experimental/webworker-runtime/README.md
+++ b/packages/experimental/webworker-runtime/README.md
@@ -32,7 +32,7 @@ Three build artifacts and one source-owned process layer:
 
 Acceptance lives in `apps/web/tests/preview-boot.e2e.ts`, which serves the real built pages and drives the pre-boot chooser plus Worker activation in headless Chromium. The empty selection exercises first-run startup. The `vfs-example` overlay supplies ordinary workspace files and plaintext persistence artifacts for cold Workspace/Session discovery, tool presentation, subagent navigation, and history paging without a model request. The fixture generator owns current-generation logs and the projection cache; committed predecessor logs remain byte-identical alongside them. The chooser reserves WebFS as a separate user-authorized source; that provider does not read the built-in fixture.
 
-The [built-bundle import sweep](tests/compile/transform-corpus-check.ts) checks bare Node imports after the library build. Its Dockkit exception accepts Node’s unknown-`.css`-extension refusal for any stylesheet rather than one pinned path; another extension or error code, and an unexpectedly successful exempt import, remain errors. See the [stylesheet exemption decision](../../../.agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.md).
+The [built-bundle import sweep](tests/compile/transform-corpus-check.ts) checks bare Node imports after the library build. Its Dockkit exception accepts Node’s unknown-`.css`-extension refusal for any stylesheet rather than one pinned path; another extension, error code, or message, and an unexpectedly successful exempt import, remain errors. See the [stylesheet exemption decision](../../../.agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.md).
 
 -----
 
diff --git a/packages/experimental/webworker-runtime/README.zh.md b/packages/experimental/webworker-runtime/README.zh.md
index 79f17edb95..5c3a54a054 100644
--- a/packages/experimental/webworker-runtime/README.zh.md
+++ b/packages/experimental/webworker-runtime/README.zh.md
@@ -32,7 +32,7 @@ kind: "package-library"
 
 验收在 `apps/web/tests/preview-boot.e2e.ts`：静态服务真实构建页面，在 headless Chromium 里驱动 pre-boot 选择面板与 Worker 激活。空白选择验证首次启动；`vfs-example` overlay 提供普通 workspace 文件与明文 persistence 产物，无需模型请求即可验证 Workspace/Session 冷发现、工具呈现、subagent 导航和历史分页。fixture 生成器负责当前代日志与投影缓存；已提交的前代日志逐字节保持不变，与它们并存。选择面板为 WebFS 保留独立的用户授权来源；该 provider 不读取内置 fixture。
 
-[已构建 bundle 导入检查](tests/compile/transform-corpus-check.ts)在库构建后检查裸 Node 导入。Dockkit 例外接受 Node 针对任意样式表报告的未知 `.css` 扩展名错误，而不限定某一固定路径；其他扩展名或错误码，以及意外成功的豁免导入，仍然报错。参见 [样式表豁免决策](../../../.agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.zh.md)。
+[已构建 bundle 导入检查](tests/compile/transform-corpus-check.ts)在库构建后检查裸 Node 导入。Dockkit 例外接受 Node 针对任意样式表报告的未知 `.css` 扩展名错误，而不限定某一固定路径；其他扩展名、错误码或消息，以及意外成功的豁免导入，仍然报错。参见 [样式表豁免决策](../../../.agents/notes/implemented/bug-fix/2026-09-10-built-bundle-css-exemption.zh.md)。
 
 -----
 

From 42123ef019785e90a6e8acc8853d5f592e24a0ae Mon Sep 17 00:00:00 2001
From: 07akioni <07akioni2@gmail.com>
Date: Thu, 10 Sep 2026 17:12:45 +0800
Subject: [PATCH 15/32] fix(desktop): tighten parallel notarization checks

---
 apps/desktop/README.i18n.yaml                 |  4 +-
 apps/desktop/README.md                        |  2 +-
 apps/desktop/README.zh.md                     |  2 +-
 apps/desktop/scripts/package-macos.ts         |  3 +-
 apps/desktop/scripts/package-target.ts        |  1 +
 .../tests/macos-notarized-application.spec.ts | 45 +++++++++++++++++++
 apps/desktop/tests/package-macos.spec.ts      |  6 ++-
 7 files changed, 56 insertions(+), 7 deletions(-)
 create mode 100644 apps/desktop/tests/macos-notarized-application.spec.ts

diff --git a/apps/desktop/README.i18n.yaml b/apps/desktop/README.i18n.yaml
index e83f63e217..b7ab466b8d 100644
--- a/apps/desktop/README.i18n.yaml
+++ b/apps/desktop/README.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write apps/desktop/README.md
-README.md: cd5425fab72ae14eaf58ad2ff4f39472cc510ab1
-README.zh.md: 32e15d8f779282e230240610578085a900343790
+README.md: c053e4894714d10cba2a9d9c1ebed71b53457c37
+README.zh.md: e27554fe8a91ee8a918380ef5a860b0838351aa5
diff --git a/apps/desktop/README.md b/apps/desktop/README.md
index cd5425fab7..c053e48947 100644
--- a/apps/desktop/README.md
+++ b/apps/desktop/README.md
@@ -129,7 +129,7 @@ pnpm run upload:mac:arm64
 
 Set `DSH_DESKTOP_AUTO_UPDATE_ENV=production` before packaging, then provide `DOWNLOAD_PROD_COS_BUCKET` and the production credential pair before running `upload:mac:arm64`, `upload:mac:x64`, or `upload:win:x64`. Packaging does not require a COS bucket or credentials. It explicitly disables electron-builder publishing, strips all four COS credential fields from its subprocesses, and writes a target completion record only after electron-builder and every signing or notarization hook succeeds. Upload requires that record to match the selected environment, target, public URL, and current dsh version; it also requires the root dsh version, Desktop version, channel metadata version, artifact names, sizes, and SHA-512 values to agree before it reads the selected COS credential pair. It uploads only that target's immutable versioned artifacts, uploads the version-derived channel metadata last with `no-cache`, and never deletes historical objects. Stable releases use `latest-mac.yml` or `latest.yml`; a prerelease such as `alpha` uses `alpha-mac.yml` or `alpha.yml`, matching electron-builder's emitted filename.
 
-The macOS configuration uses the required release environment instead of accepting whichever certificate appears first in a keychain. It rejects empty values, a malformed Team ID, a signing identity that includes electron-builder's unsupported `Developer ID Application:` prefix, and incomplete notarization credentials. macOS packaging requires the configured identity and its private key. Runtime preparation applies that identity, a secure timestamp, and hardened runtime to every embedded Mach-O file; after signing the application, a deep strict check rejects any other leaf authority or Team ID before artifact creation. The fixed-target macOS installer commands create separate copies of the signed application and run two artifact lanes concurrently. One lane notarizes and staples the App before generating the ZIP and its update metadata. The other encloses its signed App copy in a signed DMG, then notarizes, staples, and verifies the DMG; its inner App has no individually stapled ticket. Both lanes must finish successfully before their artifacts reach the final directory and the release completion record is written. Directory-only commands still notarize and staple the App. The [parallel notarization decision](../../.agents/notes/implemented/process/2026-09-09-parallel-macos-notarization.md) owns copy isolation and container ticket semantics. The private key can come from the login keychain or electron-builder's standard `CSC_LINK` input; ambient `CSC_NAME` and certificate discovery order do not select the release owner. Notary credentials may instead use electron-builder's complete Apple ID or keychain-profile strategy. The two macOS identity variables are also required when repeating the application check manually with `pnpm --dir apps/desktop run verify:mac-signature -- <path-to-app>`.
+The macOS configuration uses the required release environment instead of accepting whichever certificate appears first in a keychain. It rejects empty values, a malformed Team ID, a signing identity that includes electron-builder's unsupported `Developer ID Application:` prefix, and incomplete notarization credentials. macOS packaging requires the configured identity and its private key. Runtime preparation applies that identity, a secure timestamp, and hardened runtime to every embedded Mach-O file; after signing the application, a deep strict check rejects any other leaf authority or Team ID before artifact creation. The fixed-target macOS installer commands create separate copies of the signed application and run two artifact lanes concurrently. One lane notarizes and staples the App before generating the ZIP and its update metadata. The other encloses its signed App copy in a signed DMG, then notarizes, staples, and verifies the DMG; its inner App has no individually stapled ticket. Both lanes must finish successfully before their artifacts reach the final directory and the release completion record is written. Directory-only commands also require notarization credentials and wait for Apple notarization and App stapling. The [parallel notarization decision](../../.agents/notes/implemented/process/2026-09-09-parallel-macos-notarization.md) owns copy isolation and container ticket semantics. The private key can come from the login keychain or electron-builder's standard `CSC_LINK` input; ambient `CSC_NAME` and certificate discovery order do not select the release owner. Notary credentials may instead use electron-builder's complete Apple ID or keychain-profile strategy. The two macOS identity variables are also required when repeating the application check manually with `pnpm --dir apps/desktop run verify:mac-signature -- <path-to-app>`.
 
 macOS signing visits real files without following Framework symlink aliases. PAK resources retain all shipped languages and are sealed by the enclosing Framework or application signature instead of receiving individual signatures. The [release policy](../../.agents/notes/implemented/architecture/2026-08-25-electron-desktop-packaging-and-updates.md) owns the dependency patch and verification requirements.
 
diff --git a/apps/desktop/README.zh.md b/apps/desktop/README.zh.md
index 32e15d8f77..e27554fe8a 100644
--- a/apps/desktop/README.zh.md
+++ b/apps/desktop/README.zh.md
@@ -129,7 +129,7 @@ pnpm run upload:mac:arm64
 
 生产发布需在打包前设置 `DSH_DESKTOP_AUTO_UPDATE_ENV=production`，再在执行 `upload:mac:arm64`、`upload:mac:x64` 或 `upload:win:x64` 前提供 `DOWNLOAD_PROD_COS_BUCKET` 与生产凭据对。打包不要求 COS bucket 或凭据。它会明确禁止 electron-builder 发布，从其子进程中删除全部四个 COS 凭据字段，并且只有在 electron-builder 以及全部签名或公证钩子成功后才写入目标完成记录。上传会先要求该记录与所选环境、目标、公开 URL 和当前 dsh 版本一致，再要求根 dsh 版本、Desktop 版本、频道元数据版本、产物名称、大小与 SHA-512 全部一致，之后才读取所选 COS 凭据对。它只上传该目标不可变且带版本的产物，最后以 `no-cache` 上传根据版本得出的频道元数据，并且不会删除历史对象。稳定版本使用 `latest-mac.yml` 或 `latest.yml`；`alpha` 等预发布版本则使用 `alpha-mac.yml` 或 `alpha.yml`，与 electron-builder 生成的文件名一致。
 
-macOS 配置使用必填发布环境，不会接受钥匙串中最先发现的证书。空值、格式错误的 Team ID、包含 electron-builder 不支持的 `Developer ID Application:` 前缀的签名身份，以及不完整的公证凭据都会被拒绝。macOS 打包要求已配置的身份及其私钥可用。运行时准备会把该身份、安全时间戳与 hardened runtime 应用到每个内嵌 Mach-O 文件；应用签名完成后，深度严格检查会拒绝其他叶证书 Authority 或 Team ID，验证通过才生成发布产物。macOS 固定目标安装包命令为已签名应用创建独立副本，并发执行两条产物流。一路先公证 App 并钉票，再生成 ZIP 及其更新元数据。另一路把已签名 App 副本封装进签名 DMG，再公证 DMG、钉票并验证；其中的 App 不单独附加票据。只有两路均成功结束，产物才会移入最终目录并写入发布完成记录。仅生成目录的命令仍会公证 App 并钉票。[并行公证决策](../../.agents/notes/implemented/process/2026-09-09-parallel-macos-notarization.zh.md)负责副本隔离与容器票据语义。私钥可以来自登录钥匙串或 electron-builder 的标准 `CSC_LINK` 输入；环境中的 `CSC_NAME` 与证书发现顺序都不能选择发布所有者。公证凭据也可以使用 electron-builder 支持的完整 Apple ID 或钥匙串 profile 方式。手动执行 `pnpm --dir apps/desktop run verify:mac-signature -- <path-to-app>` 重复应用检查时，也必须提供两个 macOS 身份变量。
+macOS 配置使用必填发布环境，不会接受钥匙串中最先发现的证书。空值、格式错误的 Team ID、包含 electron-builder 不支持的 `Developer ID Application:` 前缀的签名身份，以及不完整的公证凭据都会被拒绝。macOS 打包要求已配置的身份及其私钥可用。运行时准备会把该身份、安全时间戳与 hardened runtime 应用到每个内嵌 Mach-O 文件；应用签名完成后，深度严格检查会拒绝其他叶证书 Authority 或 Team ID，验证通过才生成发布产物。macOS 固定目标安装包命令为已签名应用创建独立副本，并发执行两条产物流。一路先公证 App 并钉票，再生成 ZIP 及其更新元数据。另一路把已签名 App 副本封装进签名 DMG，再公证 DMG、钉票并验证；其中的 App 不单独附加票据。只有两路均成功结束，产物才会移入最终目录并写入发布完成记录。仅生成目录的命令同样需要公证凭据，并等待 Apple 公证和 App 钉票完成。[并行公证决策](../../.agents/notes/implemented/process/2026-09-09-parallel-macos-notarization.zh.md)负责副本隔离与容器票据语义。私钥可以来自登录钥匙串或 electron-builder 的标准 `CSC_LINK` 输入；环境中的 `CSC_NAME` 与证书发现顺序都不能选择发布所有者。公证凭据也可以使用 electron-builder 支持的完整 Apple ID 或钥匙串 profile 方式。手动执行 `pnpm --dir apps/desktop run verify:mac-signature -- <path-to-app>` 重复应用检查时，也必须提供两个 macOS 身份变量。
 
 macOS 签名遍历真实文件，不跟随 Framework 的软链接别名。PAK 资源保留全部随附语言，由外层 Framework 或应用签名记录完整性，不逐个签名。[发布策略](../../.agents/notes/implemented/architecture/2026-08-25-electron-desktop-packaging-and-updates.zh.md)负责依赖补丁和验证要求。
 
diff --git a/apps/desktop/scripts/package-macos.ts b/apps/desktop/scripts/package-macos.ts
index 382e52b150..f1378d55ef 100644
--- a/apps/desktop/scripts/package-macos.ts
+++ b/apps/desktop/scripts/package-macos.ts
@@ -59,7 +59,8 @@ async function timed(label: string, action: () => Promise<void>): Promise<void>
  * Both lanes settle before cleanup or rejection. The ZIP contains a stapled App; the DMG
  * carries its own ticket and encloses the signed App without an individually stapled ticket.
  * @param request - Signed directory build, release version, architecture, and credentials.
- * @param build - Runs electron-builder to completion with publishing disabled.
+ * @param build - Runs electron-builder with publishing disabled; resolves only after its DMG
+ * notarization and verification hook succeeds, and rejects on build or hook failure.
  * @param apple - Apple signing, copying, and notarization operations.
  * @returns Resolves after both qualified payloads, ZIP metadata, and the stapled App are in the final directory.
  */
diff --git a/apps/desktop/scripts/package-target.ts b/apps/desktop/scripts/package-target.ts
index e0fc9acf76..22c303d2bc 100644
--- a/apps/desktop/scripts/package-target.ts
+++ b/apps/desktop/scripts/package-target.ts
@@ -238,6 +238,7 @@ export function desktopElectronBuilderArguments(
     'never',
     ...(directory ? ['--dir'] : []),
     ...(artifact === undefined ? [] : [
+      ...(target.platform === 'darwin' ? ['--config.mac.notarize=false'] : []),
       '--prepackaged', artifact.appPath,
       '--config.directories.output', artifact.output,
     ]),
diff --git a/apps/desktop/tests/macos-notarized-application.spec.ts b/apps/desktop/tests/macos-notarized-application.spec.ts
new file mode 100644
index 0000000000..38fc57054c
--- /dev/null
+++ b/apps/desktop/tests/macos-notarized-application.spec.ts
@@ -0,0 +1,45 @@
+/** Verify application qualification commands without invoking Apple tools. */
+
+import { spawnSync } from 'node:child_process'
+import { afterEach, describe, expect, it, vi } from 'vitest'
+import { verifyMacOSNotarizedApplication } from '../scripts/verify-macos-signature.mjs'
+
+vi.mock('node:child_process', async importOriginal => ({
+  ...await importOriginal<typeof import('node:child_process')>(),
+  spawnSync: vi.fn(),
+}))
+
+const expected = { signingIdentity: 'Example Company (TEAMID1234)', teamId: 'TEAMID1234' }
+const appPath = '/private build/DeepSeek Harness.app'
+const commands = [
+  ['/usr/bin/codesign', ['--verify', '--deep', '--strict', '--verbose=2', appPath]],
+  ['/usr/bin/codesign', ['--display', '--verbose=4', appPath]],
+  ['/usr/bin/xcrun', ['stapler', 'validate', appPath]],
+  ['/usr/sbin/spctl', ['--assess', '--type', 'execute', '--verbose=4', appPath]],
+] as const
+
+afterEach(() => { vi.resetAllMocks() })
+
+describe('notarized application qualification', () => {
+  it.each([undefined, 0, 1, 2, 3])('stops at failed command %s or verifies every qualification', (failedCommand) => {
+    let index = 0
+    vi.mocked(spawnSync).mockImplementation(() => ({
+      pid: 1,
+      output: [],
+      stdout: '',
+      stderr: `Authority=Developer ID Application: ${expected.signingIdentity}\nTeamIdentifier=${expected.teamId}\n`,
+      status: index++ === failedCommand ? 1 : 0,
+      signal: null,
+    }))
+    if (failedCommand === undefined) {
+      expect(() => { verifyMacOSNotarizedApplication(appPath, expected) }).not.toThrow()
+    } else {
+      expect(() => { verifyMacOSNotarizedApplication(appPath, expected) }).toThrow('exited with 1')
+    }
+    const calledCommands = commands.slice(0, failedCommand === undefined ? commands.length : failedCommand + 1)
+    expect(spawnSync).toHaveBeenCalledTimes(calledCommands.length)
+    for (const [index, [command, args]] of calledCommands.entries()) {
+      expect(spawnSync).toHaveBeenNthCalledWith(index + 1, command, args, { encoding: 'utf8' })
+    }
+  })
+})
diff --git a/apps/desktop/tests/package-macos.spec.ts b/apps/desktop/tests/package-macos.spec.ts
index a8f961c3de..fcbc743bbd 100644
--- a/apps/desktop/tests/package-macos.spec.ts
+++ b/apps/desktop/tests/package-macos.spec.ts
@@ -87,7 +87,7 @@ describe('parallel macOS artifacts', () => {
     })
     try {
       await appStarted.promise
-      expect([...starts]).toEqual(['app', 'dmg'])
+      await vi.waitFor(() => { expect([...starts]).toEqual(expect.arrayContaining(['app', 'dmg'])) })
       expect(new Set(copies).size).toBe(2)
       expect(copies.every(path => path !== f.appPath)).toBe(true)
       appAccepted.release()
@@ -107,7 +107,8 @@ describe('parallel macOS artifacts', () => {
     } finally {
       appAccepted.release()
       dmgCompleted.release()
-      try { await operation } finally { await rm(f.root, { recursive: true, force: true }) }
+      await Promise.allSettled([operation])
+      await rm(f.root, { recursive: true, force: true })
     }
   })
 
@@ -181,6 +182,7 @@ describe('parallel macOS artifacts', () => {
       expect(desktopElectronBuilderArguments(target, false, { format, appPath, output })).toEqual([
         'exec', 'electron-builder', '--config', 'electron-builder.config.mjs',
         '--mac', format, '--arm64', '--publish', 'never',
+        '--config.mac.notarize=false',
         '--prepackaged', appPath, '--config.directories.output', output,
       ])
     }

From aaa02a39709893ea45ac220aa87194d8522325fe Mon Sep 17 00:00:00 2001
From: turtle1999 <turtle1999@deepseek.com>
Date: Thu, 10 Sep 2026 17:27:52 +0800
Subject: [PATCH 16/32] fix(subprocess): settle a Linux scope left active with
 no processes
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Range observation waited for an active transient scope to leave `active`
before it would prove the managed range empty. systemd ends a scope only when
it observes the populated-to-empty transition, so a payload killed before the
manager placed it in the scope's cgroup leaves the unit active with an empty
cgroup forever. `waitForExit()` then polled a unit that could not change, and
`LocalSubprocessRuntime.disposeManagedProcesses()` awaited it without bound —
teardown hung for any command cancelled immediately after spawn.

Each state query now also reads the unit's process count. Once termination was
requested and the launcher has exited, a still-active unit reporting no
processes is the empty range: the launcher forked every process it will ever
fork, so nothing later joins that cgroup. The owner stops the leftover unit so
transient units cannot accumulate, and an unreported or `[not set]` count
stays unknown and keeps waiting.

The race needs a live user-systemd manager, so it stayed dormant wherever the
native scope path was unavailable and surfaced once CI routed lanes onto the
Blacksmith hosted image, whose runners accept that path. Ten repetitions of
`local.spec.ts > disposal kills still-running processes and awaits their exit`
in a Linux container with a user manager failed seven times before the change
and passed ten times after it.
---
 ...28-subprocess-native-containment.i18n.yaml |  4 +-
 ...026-08-28-subprocess-native-containment.md |  4 +-
 ...-08-28-subprocess-native-containment.zh.md |  4 +-
 .../subprocess-local/README.i18n.yaml         |  4 +-
 .../subprocess/subprocess-local/README.md     |  2 +-
 .../subprocess/subprocess-local/README.zh.md  |  2 +-
 .../subprocess-local/src/linux-scope.ts       | 51 +++++++++++-
 .../tests/linux-scope.spec.ts                 | 77 +++++++++++++++++++
 8 files changed, 134 insertions(+), 14 deletions(-)

diff --git a/.agents/notes/implemented/architecture/2026-08-28-subprocess-native-containment.i18n.yaml b/.agents/notes/implemented/architecture/2026-08-28-subprocess-native-containment.i18n.yaml
index f20124e9f9..2f925cf952 100644
--- a/.agents/notes/implemented/architecture/2026-08-28-subprocess-native-containment.i18n.yaml
+++ b/.agents/notes/implemented/architecture/2026-08-28-subprocess-native-containment.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write .agents/notes/implemented/architecture/2026-08-28-subprocess-native-containment.md
-2026-08-28-subprocess-native-containment.md: 8e1e12a8536f56c9ccb515cec4c07c730c8b9b84
-2026-08-28-subprocess-native-containment.zh.md: 83bc20a29d937bca9530ca107712e4a7b39d8d4d
+2026-08-28-subprocess-native-containment.md: 7523f9d66e7a302f6ce9c77d93671a5b1303a5aa
+2026-08-28-subprocess-native-containment.zh.md: 252a8e9fd058cf37a1a7a70f09394a6811d58580
diff --git a/.agents/notes/implemented/architecture/2026-08-28-subprocess-native-containment.md b/.agents/notes/implemented/architecture/2026-08-28-subprocess-native-containment.md
index 8e1e12a853..7523f9d66e 100644
--- a/.agents/notes/implemented/architecture/2026-08-28-subprocess-native-containment.md
+++ b/.agents/notes/implemented/architecture/2026-08-28-subprocess-native-containment.md
@@ -22,7 +22,7 @@ The first eligible Linux ordinary or PTY call in one runtime deeply checks the e
 
 The parent creates one 0700 directory with a complete 0600 `launch-request.json` containing the final target cwd and environment. The private `DSH_SUBPROCESS_RUNNER` value locates that request while the runner starts from the provider cwd and a bootstrap-safe environment. `systemd-run --user --scope --quiet --collect --expand-environment=no` registers its process in the scope, then the one-shot bootstrap removes and validates the request, changes to the target cwd, restores the complete target environment, resolves a bare executable with the target PATH rules, clears `FD_CLOEXEC` on fd 0 through fd 2, and calls libc `execve()` with the original argv. The bootstrap becomes the target in place and preserves its inherited stdio; it does not remain as a supervisor.
 
-Request consumption or a manager observation of a loaded unit establishes scope ownership. Unit absence before either fact remains unresolved while the direct launcher is running. If that launcher exits while the request remains unconsumed, the direct result rejects with startup failure unless its observed signal matches a termination requested while the launcher was running. A matching signal preserves the actual exit outcome for both ordinary and PTY launches; a recorded startup error always takes precedence. Range observation independently resolves an empty range when the launcher has exited and the unit is absent. The parent checks this unresolved interval every 50 milliseconds; after establishment, state queries back off exponentially to the existing 5-second systemctl bound. Each query reads both `LoadState` and `ActiveState`: loaded `inactive` or `failed`, or an established unit becoming `not-found`/`inactive` or otherwise collected away, proves the range empty. `active`, `activating`, `reloading`, and `deactivating` remain nonterminal. Unknown or malformed combinations and unreadable manager results reject `waitForExit()` instead of claiming quiescence. `terminate()` wakes a sleeping observer for an immediate recheck, and settlement cancels the losing backoff sleep. A strict sibling `startup-error.json` carries only request/bootstrap or target pre-exec failure, and the parent removes this spawn's private paths at observable lifecycle completion.
+Request consumption or a manager observation of a loaded unit establishes scope ownership. Unit absence before either fact remains unresolved while the direct launcher is running. If that launcher exits while the request remains unconsumed, the direct result rejects with startup failure unless its observed signal matches a termination requested while the launcher was running. A matching signal preserves the actual exit outcome for both ordinary and PTY launches; a recorded startup error always takes precedence. Range observation independently resolves an empty range when the launcher has exited and the unit is absent. The parent checks this unresolved interval every 50 milliseconds; after establishment, state queries back off exponentially to the existing 5-second systemctl bound. Each query reads `LoadState`, `ActiveState`, and `TasksCurrent`: loaded `inactive` or `failed`, or an established unit becoming `not-found`/`inactive` or otherwise collected away, proves the range empty. `active`, `activating`, `reloading`, and `deactivating` remain nonterminal, except that once termination was requested and the launcher has exited, a still-active unit reporting no processes is an empty range: the manager ends a scope only on the populated-to-empty transition, so a payload killed before it entered the cgroup never triggers one. That conclusion stops the leftover unit so transient units cannot accumulate, while an unreported or `[not set]` process count stays unknown and keeps waiting. Unknown or malformed combinations and unreadable manager results reject `waitForExit()` instead of claiming quiescence. `terminate()` wakes a sleeping observer for an immediate recheck, and settlement cancels the losing backoff sleep. A strict sibling `startup-error.json` carries only request/bootstrap or target pre-exec failure, and the parent removes this spawn's private paths at observable lifecycle completion.
 
 The ordinary target result still comes from the same child process. The PTY path uses the same request and bootstrap without a resident runner, so the `node-pty` PID, process group, session leader, controlling terminal, foreground `inputWaiting`, `/dev/tty`, readiness, and direct terminal outcome retain their existing meanings while scope membership covers `setsid` and reparented descendants.
 
@@ -54,7 +54,7 @@ This note owns the current native-containment mechanism. It partially updates th
 
 ## Verification
 
-- Provider and Linux protocol suites pin synchronous NUL rejection before launch side effects, strict request/error decoding, target cwd and complete environment restoration, private-variable collision, symlink-sensitive PATH traversal with preserved argv, close-on-exec removal for inherited stdio, pre-exec error ownership, failed-deep-probe retry plus successful-deep-probe caching with per-call manager checks, the three scope-establishment states including requested versus unexpected exits with an unconsumed request, `LoadState`/`ActiveState` parsing, `reloading`, terminate wake-up with losing-delay cancellation, bounded established-scope backoff, and exactly-once PTY managed-owner cleanup.
+- Provider and Linux protocol suites pin synchronous NUL rejection before launch side effects, strict request/error decoding, target cwd and complete environment restoration, private-variable collision, symlink-sensitive PATH traversal with preserved argv, close-on-exec removal for inherited stdio, pre-exec error ownership, failed-deep-probe retry plus successful-deep-probe caching with per-call manager checks, the three scope-establishment states including requested versus unexpected exits with an unconsumed request, `LoadState`/`ActiveState`/`TasksCurrent` parsing, releasing a leftover scope left active with no processes beside the live-client, unterminated, and unset-count cases, `reloading`, terminate wake-up with losing-delay cancellation, bounded established-scope backoff, and exactly-once PTY managed-owner cleanup.
 - Windows protocol and Win32 suites pin exactly two result branches, numeric-only target exits, ordinary-error start cancellation with raw parent-local reasons, the reduced `name`/`message`/`code`/`syscall`/`path` error record, the fixed `2`/`3`/`267` to `ENOENT`, `740` to `EACCES`, `5` to `EPERM`, `193` to `EFTYPE`, and remaining-code to `UNKNOWN` mapping, start delivery after runner spawn, empty-range settlement after pre-spawn failure, explicit ordinally sorted target environment blocks with `=C:` preservation and double-NUL termination, `uv_get_osfhandle()` carrier mapping and unsigned invalid-sentinel rejection, the null-device ignored-stdin carrier and piped non-ignored stdin, result-send and IPC-disconnect failures, direct-result latching before stdio settlement, active-process quiescence, and unique handle cleanup.
 - A keyless [`bash-startup-timeout`](../../../../snapshots/session/bash-startup-timeout/snapshot.yml) Session snapshot pins the model-facing timeout result. A Linux user-systemd fixture holds the launch request unconsumed at an input barrier and verifies cancellation plus range settlement.
 - Real Linux user-systemd tests run one ordinary and one `node-pty` `setsid`/reparent scenario through the production entry. They prove scope signalling and collection, bare executable lookup, escaped-descendant termination, range settlement, and unchanged PTY PID, session, controlling-terminal, foreground-input, `/dev/tty`, readiness, and startup-failure semantics.
diff --git a/.agents/notes/implemented/architecture/2026-08-28-subprocess-native-containment.zh.md b/.agents/notes/implemented/architecture/2026-08-28-subprocess-native-containment.zh.md
index 83bc20a29d..252a8e9fd0 100644
--- a/.agents/notes/implemented/architecture/2026-08-28-subprocess-native-containment.zh.md
+++ b/.agents/notes/implemented/architecture/2026-08-28-subprocess-native-containment.zh.md
@@ -22,7 +22,7 @@ detached POSIX 进程组、Windows direct-parent 遍历与 PTY 后代扫描只
 
 parent 创建一个 0700 目录，其中的完整 0600 `launch-request.json` 保存最终 target cwd 与环境。私有 `DSH_SUBPROCESS_RUNNER` 值负责定位该 request，runner 则从 provider cwd 与 bootstrap-safe 环境启动。`systemd-run --user --scope --quiet --collect --expand-environment=no` 先把自身进程注册到 scope，再由 one-shot bootstrap 删除并校验 request、切换到 target cwd、恢复完整 target 环境、按 target PATH 规则解析裸可执行文件、清除 fd 0 至 fd 2 的 `FD_CLOEXEC`，并使用原始 argv 调用 libc `execve()`。bootstrap 会原地成为 target 并保留继承的 stdio，不作为常驻 supervisor。
 
-request 被消费或 manager 已观察到 loaded unit 都能建立 scope ownership。在这两项事实出现前，只要 direct launcher 仍在运行，unit absence 就保持未决。如果 launcher 退出时 request 仍未消费，direct result 会以 startup failure reject，除非实际观察到的信号匹配 launcher 仍在运行时请求的终止信号。普通进程与 PTY 进程遇到匹配信号时都会保留实际退出结果；已记录的 startup error 始终优先。launcher 已退出且 unit 不存在时，range observation 会独立结算 empty-range wait。parent 每 50 毫秒检查一次这段未决区间；建立后，状态查询按指数增长间隔退避，最多达到既有的 5 秒 systemctl 上限。每次查询同时读取 `LoadState` 与 `ActiveState`：loaded `inactive` 或 `failed`，以及已经建立的 unit 变为 `not-found`/`inactive` 或被 collect 卸载，都能证明 range 为空。`active`、`activating`、`reloading` 与 `deactivating` 仍是非终态。未知或 malformed 组合以及不可读的 manager 结果会使 `waitForExit()` reject，而不是宣称完全停稳。`terminate()` 会唤醒正在休眠的 observer 立即复查，结算时会取消未胜出的退避 sleep。严格的同目录 `startup-error.json` 只承载 request／bootstrap 或 target pre-exec failure，parent 会在可观察生命周期完成时移除本次 spawn 的私有路径。
+request 被消费或 manager 已观察到 loaded unit 都能建立 scope ownership。在这两项事实出现前，只要 direct launcher 仍在运行，unit absence 就保持未决。如果 launcher 退出时 request 仍未消费，direct result 会以 startup failure reject，除非实际观察到的信号匹配 launcher 仍在运行时请求的终止信号。普通进程与 PTY 进程遇到匹配信号时都会保留实际退出结果；已记录的 startup error 始终优先。launcher 已退出且 unit 不存在时，range observation 会独立结算 empty-range wait。parent 每 50 毫秒检查一次这段未决区间；建立后，状态查询按指数增长间隔退避，最多达到既有的 5 秒 systemctl 上限。每次查询读取 `LoadState`、`ActiveState` 与 `TasksCurrent`：loaded `inactive` 或 `failed`，以及已经建立的 unit 变为 `not-found`/`inactive` 或被 collect 卸载，都能证明 range 为空。`active`、`activating`、`reloading` 与 `deactivating` 仍是非终态；例外是：一旦请求过终止且 launcher 已经退出，报告没有任何进程却仍 active 的 unit 就是空 range——manager 只在观测到 populated→empty 转变时才结束 scope，因此进入 cgroup 前就被杀死的 payload 永远不会触发该转变。该判定会 stop 掉这个遗留 unit，使 transient unit 不会累积；未上报或为 `[not set]` 的进程数仍视为未知并继续等待。未知或 malformed 组合以及不可读的 manager 结果会使 `waitForExit()` reject，而不是宣称完全停稳。`terminate()` 会唤醒正在休眠的 observer 立即复查，结算时会取消未胜出的退避 sleep。严格的同目录 `startup-error.json` 只承载 request／bootstrap 或 target pre-exec failure，parent 会在可观察生命周期完成时移除本次 spawn 的私有路径。
 
 普通 target result 仍来自同一个 child process。PTY 路径复用同一 request 与 bootstrap，但不增加常驻 runner，因此 `node-pty` PID、进程组、session leader、控制终端、前台 `inputWaiting`、`/dev/tty`、readiness 与 direct terminal outcome 保留既有含义，同时 scope membership 覆盖 `setsid` 与 reparent 后代。
 
@@ -54,7 +54,7 @@ selector 是 per-spawn locator 或 sentinel，不是凭据或持久格式。Linu
 
 ## Verification
 
-- provider 与 Linux 协议测试套件固定同步 NUL 拒绝发生在启动副作用之前、严格 request／error 解码、target cwd 与完整环境恢复、私有变量碰撞、保留 argv 且对 symlink 敏感的 PATH 遍历、为继承 stdio 清除 close-on-exec、pre-exec error ownership、失败深度 probe 重试与成功深度 probe 缓存及逐调用 manager 检查、三种 scope 建立状态（包括 request 未消费时的请求终止与意外退出）、`LoadState`／`ActiveState` 解析、`reloading`、带未胜出 delay 取消的 terminate wake-up、建立后有上限的退避，以及 PTY managed-owner 恰好一次 cleanup。
+- provider 与 Linux 协议测试套件固定同步 NUL 拒绝发生在启动副作用之前、严格 request／error 解码、target cwd 与完整环境恢复、私有变量碰撞、保留 argv 且对 symlink 敏感的 PATH 遍历、为继承 stdio 清除 close-on-exec、pre-exec error ownership、失败深度 probe 重试与成功深度 probe 缓存及逐调用 manager 检查、三种 scope 建立状态（包括 request 未消费时的请求终止与意外退出）、`LoadState`／`ActiveState`／`TasksCurrent` 解析、释放被留在 active 且没有任何进程的遗留 scope（连同 client 仍存活、未请求终止与进程数未上报三种情形）、`reloading`、带未胜出 delay 取消的 terminate wake-up、建立后有上限的退避，以及 PTY managed-owner 恰好一次 cleanup。
 - Windows 协议与 Win32 测试套件固定恰好两个 result 分支、只含数字的 target exit、使用普通 error 的 start cancellation 与 parent 原样保留的本地 reason、缩减到 `name`／`message`／`code`／`syscall`／`path` 的 error record、固定的 `2`／`3`／`267` 到 `ENOENT`、`740` 到 `EACCES`、`5` 到 `EPERM`、`193` 到 `EFTYPE` 及其余 code 到 `UNKNOWN` 的映射、runner spawn 后才发送 start、spawn 前 failure 的 empty-range settlement、按序数显式排序的 target 环境块及 `=C:` 保留和双 NUL 结尾、`uv_get_osfhandle()` carrier 映射与 unsigned invalid sentinel 拒绝、null-device ignored-stdin carrier 与非 ignore stdin pipe、result-send 与 IPC-disconnect failure、stdio settlement 前的 direct-result 锁存、active-process 完全停稳，以及唯一 handle cleanup。
 - 无需密钥的 [`bash-startup-timeout`](../../../../snapshots/session/bash-startup-timeout/snapshot.yml) Session 快照固定模型可见的超时结果。Linux user-systemd fixture 通过输入屏障保持启动请求未消费，并验证取消与 range settlement。
 - 真实 Linux user-systemd 测试会分别通过生产入口运行一条普通命令与一条 `node-pty` `setsid`／reparent 场景。它们证明 scope signalling 与 collection、裸可执行文件查找、逃逸后代终止、range settlement，以及不变的 PTY PID、session、控制终端、前台输入、`/dev/tty`、readiness 与 startup-failure 语义。
diff --git a/packages/subprocess/subprocess-local/README.i18n.yaml b/packages/subprocess/subprocess-local/README.i18n.yaml
index 5cc4ae4c49..f4573b93cc 100644
--- a/packages/subprocess/subprocess-local/README.i18n.yaml
+++ b/packages/subprocess/subprocess-local/README.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write packages/subprocess/subprocess-local/README.md
-README.md: 03856c32e6308a1d075ff41b879da144cc772843
-README.zh.md: d1fb5881396963bf5a8d7cb4f44cabae3d1e5a24
+README.md: 3222d7bf9b9b498baf939212ebbf7da9bf599d76
+README.zh.md: e8d2ddc9398ffe186260a1b4ed3a0cd116ff8afb
diff --git a/packages/subprocess/subprocess-local/README.md b/packages/subprocess/subprocess-local/README.md
index 03856c32e6..3222d7bf9b 100644
--- a/packages/subprocess/subprocess-local/README.md
+++ b/packages/subprocess/subprocess-local/README.md
@@ -52,7 +52,7 @@ Collect mode keeps the last `maxBytes` of a stream in memory — errors and fina
 
 Normal disposal terminates every running managed range and terminal session and awaits quiescence. During a JavaScript-observable host exit — direct `process.exit()`, default uncaught exceptions, default unhandled rejections — synchronous finalization asks a Linux scope to kill its members, kills each Windows runner so its sole Job handle closes, and uses the existing PGID, `taskkill`, or captured-identity operation for fallbacks. It creates no promises or timers and does not claim quiescence. The same exit removes the private per-process spill directory when it holds no completed spill file; completed spill files remain as full-output recovery artifacts until an external cleanup. Unhandled `SIGTERM`/`SIGINT`/`SIGHUP`, `SIGKILL`, fatal OOM, native crashes, and power loss need an external supervisor.
 
-Linux ordinary and terminal cancellation preserves the observed termination signal even before the bootstrap consumes its launch request. An unconsumed request still reports startup failure when no matching termination was requested; a recorded pre-exec error always takes precedence. `waitForExit()` independently proves the scope empty.
+Linux ordinary and terminal cancellation preserves the observed termination signal even before the bootstrap consumes its launch request. An unconsumed request still reports startup failure when no matching termination was requested; a recorded pre-exec error always takes precedence. `waitForExit()` independently proves the scope empty, including a scope the manager leaves active with no processes after a payload dies before it enters that scope's cgroup.
 
 ### What can go wrong
 
diff --git a/packages/subprocess/subprocess-local/README.zh.md b/packages/subprocess/subprocess-local/README.zh.md
index d1fb588139..e8d2ddc939 100644
--- a/packages/subprocess/subprocess-local/README.zh.md
+++ b/packages/subprocess/subprocess-local/README.zh.md
@@ -52,7 +52,7 @@ kind: "package-reference"
 
 正常 dispose 会终止每个仍在运行的受管范围与终端会话并等待其完全停稳。在 JavaScript 可观察的宿主退出期间——直接 `process.exit()`、默认未捕获异常、默认未处理 rejection——同步最终清理会请求 Linux scope 终止其成员，同步终止每个 Windows runner 以关闭其唯一 Job handle，并为 fallback 使用既有 PGID、`taskkill` 或已捕获身份操作。它不创建 Promise 或定时器，也不声称已经完全停稳。同一退出阶段会删除未持有任何已完成 spill 文件的每进程私有 spill 目录；已完成的 spill 文件作为完整输出恢复产物保留，直到外部机制清理。未处理的 `SIGTERM`/`SIGINT`/`SIGHUP`、`SIGKILL`、fatal OOM、native crash 与断电需要外部 supervisor。
 
-Linux 普通进程和终端进程即使在 bootstrap 消费启动请求前被取消，也会保留实际观察到的终止信号。如果没有请求对应的终止信号，未消费的请求仍会报启动失败；已记录的 pre-exec 错误始终优先。`waitForExit()` 独立证明 scope 已为空。
+Linux 普通进程和终端进程即使在 bootstrap 消费启动请求前被取消，也会保留实际观察到的终止信号。如果没有请求对应的终止信号，未消费的请求仍会报启动失败；已记录的 pre-exec 错误始终优先。`waitForExit()` 独立证明 scope 已为空，其中也包括 payload 在进入该 scope 的 cgroup 前就被杀死、manager 因此让它保持 active 却没有任何进程的 scope。
 
 ### 可能出错的地方
 
diff --git a/packages/subprocess/subprocess-local/src/linux-scope.ts b/packages/subprocess/subprocess-local/src/linux-scope.ts
index d5f28b5fb2..c018dc01a3 100644
--- a/packages/subprocess/subprocess-local/src/linux-scope.ts
+++ b/packages/subprocess/subprocess-local/src/linux-scope.ts
@@ -178,6 +178,7 @@ class LinuxScopeStartup {
 class SystemdScopeOwner implements BoundProcessOwner {
   private establishment: 'pending' | 'established' = 'pending'
   private stopped = false
+  private terminationRequested = false
   private observation: Promise<void> | undefined
   private killFailure: Error | undefined
   private wakeGeneration = 0
@@ -195,6 +196,7 @@ class SystemdScopeOwner implements BoundProcessOwner {
 
   signal(signal: 'SIGTERM' | 'SIGKILL'): void {
     if (this.stopped) return
+    this.terminationRequested = true
     if (this.direct.running()) this.startup.terminationSignals.add(signal)
     this.observeRequestConsumption()
     const directFallbackRequired = this.establishment === 'pending'
@@ -256,7 +258,32 @@ class SystemdScopeOwner implements BoundProcessOwner {
     return true
   }
 
-  private parseUnitState(stdout: string): { loadState: string; activeState: string } {
+  /**
+   * Prove an active unit with no processes is the empty managed range rather
+   * than a launch still placing its payload. systemd ends a scope only on the
+   * populated-to-empty transition, so a payload killed before it entered the
+   * cgroup leaves the unit active forever. Requested termination plus a
+   * departed client makes that leftover conclusive: the client forked every
+   * process it will ever fork.
+   */
+  private emptyRange(tasksCurrent: number | undefined): boolean {
+    return this.terminationRequested && tasksCurrent === 0 && !this.direct.running()
+  }
+
+  /** Release a leftover empty scope so the transient unit is collected and cannot accumulate. */
+  private releaseEmptyRange(): void {
+    try {
+      this.runSync(this.systemctl, ['--user', 'stop', this.unit], {
+        env: managerEnvironment(),
+        stdio: 'ignore',
+        timeout: SYSTEMCTL_TIMEOUT_MS,
+      })
+    } catch {
+      // The range is already empty; a failed cleanup leaves only the transient unit.
+    }
+  }
+
+  private parseUnitState(stdout: string): { loadState: string; activeState: string; tasksCurrent: number | undefined } {
     const values = new Map<string, string>()
     for (const line of stdout.split(/\r?\n/u)) {
       if (line === '') continue
@@ -272,10 +299,21 @@ class SystemdScopeOwner implements BoundProcessOwner {
     }
     const loadState = values.get('LoadState')
     const activeState = values.get('ActiveState')
-    if (values.size !== 2 || loadState === undefined || activeState === undefined) {
+    // The manager prints this sentinel for a property the unit does not carry.
+    const reportedTasks = values.get('TasksCurrent')
+    const tasksCurrent = reportedTasks === '[not set]' ? undefined : reportedTasks
+    if (values.size !== (reportedTasks === undefined ? 2 : 3)
+      || loadState === undefined || activeState === undefined) {
       throw new Error(`systemctl returned incomplete state for ${this.unit}: ${JSON.stringify(stdout.trim())}`)
     }
-    return { loadState, activeState }
+    if (tasksCurrent !== undefined && !/^\d+$/u.test(tasksCurrent)) {
+      throw new Error(`systemctl returned a non-numeric TasksCurrent for ${this.unit}: ${JSON.stringify(tasksCurrent)}`)
+    }
+    return {
+      loadState,
+      activeState,
+      tasksCurrent: tasksCurrent === undefined ? undefined : Number(tasksCurrent),
+    }
   }
 
   private async rangeActive(): Promise<boolean> {
@@ -286,10 +324,11 @@ class SystemdScopeOwner implements BoundProcessOwner {
       this.unit,
       '--property=LoadState',
       '--property=ActiveState',
+      '--property=TasksCurrent',
     ])
     const output = `${result.stdout}\n${result.stderr}`
     if (result.status === 0) {
-      const { loadState, activeState } = this.parseUnitState(result.stdout)
+      const { loadState, activeState, tasksCurrent } = this.parseUnitState(result.stdout)
       if (loadState === 'not-found' && activeState === 'inactive') return this.absentUnit()
       if (loadState !== 'loaded') {
         throw new Error(
@@ -302,6 +341,10 @@ class SystemdScopeOwner implements BoundProcessOwner {
         throw new Error(`systemctl returned unknown ActiveState for ${this.unit}: ${JSON.stringify(activeState)}`)
       }
       if (this.killFailure !== undefined) throw this.killFailure
+      if (this.emptyRange(tasksCurrent)) {
+        this.releaseEmptyRange()
+        return false
+      }
       return true
     }
     if (!MISSING_UNIT.test(output)) {
diff --git a/packages/subprocess/subprocess-local/tests/linux-scope.spec.ts b/packages/subprocess/subprocess-local/tests/linux-scope.spec.ts
index ab69f4483b..8233e60a2f 100644
--- a/packages/subprocess/subprocess-local/tests/linux-scope.spec.ts
+++ b/packages/subprocess/subprocess-local/tests/linux-scope.spec.ts
@@ -84,6 +84,20 @@ function unitState(loadState: string, activeState: string) {
   return { status: 0, stdout: `LoadState=${loadState}\nActiveState=${activeState}\n`, stderr: '' }
 }
 
+function activeUnitWithTasks(tasks: string) {
+  return { status: 0, stdout: `LoadState=loaded\nActiveState=active\nTasksCurrent=${tasks}\n`, stderr: '' }
+}
+
+/** Deny every real process-group signal so a fake child never reaches a live host group. */
+function denyProcessGroups(): void {
+  vi.spyOn(process, 'kill').mockImplementation(() => { throw new Error('missing process group') })
+}
+
+/** Record the systemctl invocations a scope owner makes, succeeding unless a case overrides it. */
+function recordingSystemctl() {
+  return vi.fn((_command: string, _args: readonly string[]) => ({ status: 0, stdout: '', stderr: '' }))
+}
+
 function spec() {
   return {
     argv: ['tool', 'literal arg'],
@@ -446,6 +460,7 @@ describe('Linux scope establishment and quiescence', () => {
       ['LoadState=loaded\nLoadState=loaded\nActiveState=active\n', 'duplicate LoadState'],
       ['LoadState=loaded\n', 'incomplete state'],
       ['LoadState=loaded\nActiveState=inactive\nOther=value\n', 'incomplete state'],
+      ['LoadState=loaded\nActiveState=active\nTasksCurrent=0\nOther=value\n', 'incomplete state'],
     ] as const) {
       const launched = launch(async () => ({ status: 0, stdout, stderr: '' }))
       await expect(launched.result.owner.waitForExit()).rejects.toThrow(message)
@@ -453,6 +468,68 @@ describe('Linux scope establishment and quiescence', () => {
     }
   })
 
+  it('rejects a manager process count that is neither numeric nor the unset sentinel', async () => {
+    const launched = launch(async () => activeUnitWithTasks('many'))
+    await expect(launched.result.owner.waitForExit()).rejects.toThrow('non-numeric TasksCurrent')
+    launched.result.owner.cleanup?.()
+  })
+
+  it('releases an active scope left with no processes once its client has gone', async () => {
+    // Regression: the manager's empty cgroup never ends this unit on its own.
+    denyProcessGroups()
+    const spawnSync = recordingSystemctl()
+    const launched = launch(async () => activeUnitWithTasks('0'), { spawnSync: spawnSync as never })
+    launched.result.owner.signal('SIGKILL')
+    launched.child.exit(null, 'SIGKILL')
+    await expect(launched.result.owner.waitForExit()).resolves.toBeUndefined()
+    expect(spawnSync.mock.calls.map(call => call[1])).toEqual([
+      ['--user', 'kill', '--kill-whom=all', '--signal=SIGKILL', expect.stringMatching(/\.scope$/u)],
+      ['--user', 'stop', expect.stringMatching(/\.scope$/u)],
+    ])
+    launched.result.owner.cleanup?.()
+  })
+
+  it('concludes the empty range even when releasing the leftover scope fails', async () => {
+    denyProcessGroups()
+    const spawnSync = recordingSystemctl()
+      .mockImplementationOnce(() => ({ status: 0, stdout: '', stderr: '' }))
+      .mockImplementationOnce(() => { throw new Error('systemctl is gone') })
+    const launched = launch(async () => activeUnitWithTasks('0'), { spawnSync: spawnSync as never })
+    launched.result.owner.signal('SIGKILL')
+    launched.child.exit(null, 'SIGKILL')
+    await expect(launched.result.owner.waitForExit()).resolves.toBeUndefined()
+    launched.result.owner.cleanup?.()
+  })
+
+  it('keeps waiting while the client still owns an active scope with no processes', async () => {
+    denyProcessGroups()
+    const spawnSync = recordingSystemctl()
+    const states = [activeUnitWithTasks('0'), unloadedUnit()]
+    const launched = launch(async () => states.shift() ?? unloadedUnit(), {
+      spawnSync: spawnSync as never,
+    })
+    launched.result.owner.signal('SIGTERM')
+    await expect(launched.result.owner.waitForExit()).resolves.toBeUndefined()
+    expect(spawnSync.mock.calls.map(call => call[1]?.[1])).toEqual(['kill'])
+    launched.result.owner.cleanup?.()
+  })
+
+  it('keeps waiting for an active empty scope no termination has requested', async () => {
+    const states = [activeUnitWithTasks('0'), unloadedUnit()]
+    const launched = launch(async () => states.shift() ?? unloadedUnit())
+    await expect(launched.result.owner.waitForExit()).resolves.toBeUndefined()
+    expect(launched.spawnSync).not.toHaveBeenCalled()
+    launched.result.owner.cleanup?.()
+  })
+
+  it('treats an unset process count as unknown and keeps waiting', async () => {
+    const states = [activeUnitWithTasks('[not set]'), unloadedUnit()]
+    const launched = launch(async () => states.shift() ?? unloadedUnit())
+    await expect(launched.result.owner.waitForExit()).resolves.toBeUndefined()
+    expect(launched.spawnSync).not.toHaveBeenCalled()
+    launched.result.owner.cleanup?.()
+  })
+
   it('keeps signal failures scoped to final kill proof and stays idempotent after stop', async () => {
     const spawnSync = vi.fn()
       .mockReturnValueOnce({ status: 1, stdout: '', stderr: '' })

From ac5f851095819b90247c25ee7b0209c1245116f5 Mon Sep 17 00:00:00 2001
From: Chinesezjc <jczhai@deepseek.com>
Date: Thu, 10 Sep 2026 17:36:13 +0800
Subject: [PATCH 17/32] test(directory-picker): probe the folder dialog class
 instead of the platform

A Windows Server image can answer CoCreateInstance(CLSID_FileOpenDialog)
with CLASS_E_CLASSNOTAVAILABLE, so the win32 COM smoke has no dialog to
open and the POSIX rejection expectation is the only proof that image can
produce. Gate the pair on a PowerShell activation probe taken outside the
code under test, so a GUID or vtable regression in src still fails the
smoke instead of skipping it.
---
 .../tests/win32-dialog.spec.ts                | 44 +++++++++++++++----
 1 file changed, 35 insertions(+), 9 deletions(-)

diff --git a/packages/host/directory-picker-native/tests/win32-dialog.spec.ts b/packages/host/directory-picker-native/tests/win32-dialog.spec.ts
index 8e7d6951b8..bab9f4c222 100644
--- a/packages/host/directory-picker-native/tests/win32-dialog.spec.ts
+++ b/packages/host/directory-picker-native/tests/win32-dialog.spec.ts
@@ -1,11 +1,12 @@
 /**
  * Driver tests: the child-process message protocol mapped onto the promise,
  * the WM_CLOSE abort service (including the show-race retry and the kill
- * last resort) against fakes, plus the real spawn plumbing — POSIX hosts
- * prove the default path rejects cleanly (koffi cannot load ole32 there),
- * and win32 hosts briefly open and auto-abort a real dialog.
+ * last resort) against fakes, plus the real spawn plumbing: hosts that cannot
+ * open the folder dialog prove the default path rejects cleanly and hosts
+ * that can briefly open and auto-abort a real one.
  */
 
+import { spawnSync } from 'node:child_process'
 import { EventEmitter } from 'node:events'
 import { describe, expect, it, vi } from 'vitest'
 import { pickWin32Directory, type Win32DialogInternals, type Win32DialogWorkerLike } from '../src/win32-dialog.ts'
@@ -41,6 +42,28 @@ function harness(overrides: Partial<Win32DialogInternals> = {}): Harness {
 
 const live = (): AbortSignal => new AbortController().signal
 
+/** CLSID_FileOpenDialog, spelled out here so the probe below owns its own copy. */
+const CLSID_FILE_OPEN_DIALOG = 'dc1c5a9c-e88a-4dde-a5a1-60f82a20aef7'
+
+/**
+ * Whether this host can open the shell's folder dialog. Some Windows Server
+ * images answer `CoCreateInstance(CLSID_FileOpenDialog)` with
+ * CLASS_E_CLASSNOTAVAILABLE (0x80040111) instead of an object, so no dialog
+ * can ever appear there. PowerShell activates the class outside the code
+ * under test, which keeps a GUID or vtable regression in `src` failing the
+ * smoke below instead of silently skipping it. Every exception from that
+ * activation reads as refusal, so a host that fails the probe for another
+ * reason only loses the real-dialog case; a probe that cannot run at all —
+ * no `powershell.exe` — keeps the win32 assumption.
+ */
+const opensRealDialog = process.platform === 'win32' && spawnSync('powershell.exe', [
+  '-NoLogo',
+  '-NoProfile',
+  '-NonInteractive',
+  '-Command',
+  `try { [void][Activator]::CreateInstance([Type]::GetTypeFromCLSID([Guid]'${CLSID_FILE_OPEN_DIALOG}')) } catch { exit 1 }`,
+], { encoding: 'utf8' }).status !== 1
+
 describe('pickWin32Directory', () => {
   it('resolves the selected path and the cancellation null', async () => {
     const first = harness()
@@ -145,15 +168,18 @@ describe('pickWin32Directory', () => {
     expect(close.mock.calls.length).toBeGreaterThan(10)
   })
 
-  // POSIX hosts exercise the REAL default plumbing end to end: the tsx-bootstrapped
-  // worker spawns, loads koffi, fails to load ole32.dll, and reports the error.
-  it.skipIf(process.platform === 'win32')('rejects through the real worker where the Win32 surface is unavailable', async () => {
+  // Hosts without the folder dialog exercise the REAL default plumbing end to
+  // end: the tsx-bootstrapped worker spawns, loads koffi, and reports the
+  // refusal — ole32.dll fails to load on POSIX, and a Windows Server image
+  // that refuses the dialog class reports the same rejection.
+  it.skipIf(opensRealDialog)('rejects through the real worker where the Win32 surface is unavailable', async () => {
     await expect(pickWin32Directory(live())).rejects.toThrow('win32 folder dialog failed')
   }, 30_000)
 
-  // win32 hosts run the true COM smoke instead: a real dialog opens briefly
-  // and the abort service closes it (the same lever a disconnecting client pulls).
-  it.skipIf(process.platform !== 'win32')('opens and abort-closes a real dialog', async () => {
+  // Hosts with the dialog run the true COM smoke instead: a real dialog opens
+  // briefly and the abort service closes it (the same lever a disconnecting
+  // client pulls).
+  it.skipIf(!opensRealDialog)('opens and abort-closes a real dialog', async () => {
     const controller = new AbortController()
     setTimeout(() => {
       controller.abort()

From df709f442c4ec05640f928ccd81ded6aaa28fc59 Mon Sep 17 00:00:00 2001
From: Chinesezjc <jczhai@deepseek.com>
Date: Thu, 10 Sep 2026 17:36:14 +0800
Subject: [PATCH 18/32] test(subprocess): align the teardown race with the
 settlement contract
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

`disposal contains a spawn-failure rejection that races teardown` asserted one
winner of the race. A bootstrap that publishes its pre-exec failure rejects with
that failure, and a teardown that stops the bootstrap first settles as the
requested termination — the recorded failure only outranks the stop when it was
published before the stop landed. Assert the contract instead: a rejection
carries the failure, a stop carries SIGTERM, which only the Linux scope records
because the win32 job owner and the fallback launcher both reject the start.

The two terminal cases that drive a mocked PTY exit state why they pin
`internals.platform`: under the host's native scope the mocked exit races the
scope bootstrap and fails as `terminal scope exited before its bootstrap
consumed the launch request`.
---
 .../subprocess-local/tests/local.spec.ts      | 24 +++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/packages/subprocess/subprocess-local/tests/local.spec.ts b/packages/subprocess/subprocess-local/tests/local.spec.ts
index 135638f54a..a13f589de1 100644
--- a/packages/subprocess/subprocess-local/tests/local.spec.ts
+++ b/packages/subprocess/subprocess-local/tests/local.spec.ts
@@ -393,6 +393,8 @@ describe('LocalSubprocessRuntime', () => {
       const ctx = new Context()
       const fiber = await ctx.plugin(IsolatedLocalSubprocessRuntime)
       const service = ctx.subprocess as InstanceType<typeof IsolatedLocalSubprocessRuntime>
+      // Pins the containment choice: with the host's native scope a mocked PTY
+      // exit races the scope bootstrap.
       service.internals = { platform: 'darwin' }
       const handle = await ctx.subprocess.spawnTerminal({
         argv: ['shell'], cwd: process.cwd(), rows: 24, cols: 80, graceMs: 1,
@@ -600,6 +602,8 @@ describe('LocalSubprocessRuntime', () => {
       ctx.logger.error = ((error: unknown) => { disposalErrors.push(error) }) as typeof ctx.logger.error
       const fiber = await ctx.plugin(IsolatedLocalSubprocessRuntime)
       const alive = new Set([124])
+      // Pins the containment choice: with the host's native scope a mocked PTY
+      // exit races the scope bootstrap.
       ;(ctx.subprocess as InstanceType<typeof IsolatedLocalSubprocessRuntime>).internals = { platform: 'darwin' }
       ;(ctx.subprocess as InstanceType<typeof IsolatedLocalSubprocessRuntime>).terminalInspector = {
         foregroundPgid: () => 123,
@@ -878,10 +882,26 @@ describe('LocalSubprocessRuntime', () => {
     const ctx = new Context()
     const fiber = await ctx.plugin(LocalSubprocessRuntime)
     // Dispose before the rejection continuation removes the handle from the
-    // live set, so teardown itself must swallow the rejected done.
+    // live set, so teardown itself must swallow the rejected done. Two
+    // settlements are valid and the winner is a race: a bootstrap that
+    // publishes its pre-exec failure rejects with that failure, and a teardown
+    // that stops the bootstrap first settles as the requested termination —
+    // the recorded failure only outranks the stop when it was published before
+    // the stop landed.
     const handle = ctx.subprocess.spawn(spec('true', { cwd: '/nonexistent-dir-dsh-subprocess-test' }))
     await fiber.dispose()
-    await expect(handle.done).rejects.toThrow()
+    const settlement = await handle.done.then(
+      outcome => ({ kind: 'stopped' as const, outcome }),
+      (error: unknown) => ({ kind: 'failed' as const, error }),
+    )
+    if (settlement.kind === 'failed') {
+      expect(settlement.error).toBeInstanceOf(Error)
+    } else {
+      // Only the Linux scope records a stop this way: the win32 job owner
+      // rejects a cancelled start and the fallback launcher rejects the ENOENT,
+      // so neither can produce the stopped branch.
+      expect(settlement.outcome.signal).toBe('SIGTERM')
+    }
   })
 
   it('loading a second implementation throws (one processes service per context — cordis standard)', async () => {

From f45ca2d9acdbb295e13b6e7eac7daa717ef50470 Mon Sep 17 00:00:00 2001
From: Chinesezjc <jczhai@deepseek.com>
Date: Thu, 10 Sep 2026 17:36:15 +0800
Subject: [PATCH 19/32] test: drop two host-paced assumptions the hosted image
 exposes
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The ACP plugin-config case drove a real dispose with 150ms graces. On the hosted
image the SIGKILL escalation landed while the managed scope could not take the
signal — systemctl failed the kill ("Failed to send signal SIGKILL to auxiliary
processes: Invalid argument") — so the run reported a teardown failure the
configuration never asked for. The case asserts that config graces reach the
real run, so the values only need to clear the host's scope handling. Its mock
refuses stdin EOF and SIGTERM by design, so the case waits out both graces and
carries its own budget for that fixed cost.

Both illegal-UTF-8 residual cases relied on a plain sched_yield leaving each
write as its own read chunk. A starved reader coalesces hundreds of bytes into
one chunk, which inflates the measured peak for correct accounting too: the
hosted image measured 2563 against the 2048 bound. Pace with a real sleep so
each byte is its own chunk everywhere, and keep each payload above the bound
(3200 bytes; 1100 CESU-8 sequences) so a raw-byte undercount still flushes past
it instead of only at EOF.
---
 .../code-runtime-python/tests/runtime.spec.ts | 29 ++++++++++++++-----
 .../subagent-acp/tests/subagent-acp.spec.ts   | 20 +++++++++----
 2 files changed, 36 insertions(+), 13 deletions(-)

diff --git a/packages/experimental/code-runtime-python/tests/runtime.spec.ts b/packages/experimental/code-runtime-python/tests/runtime.spec.ts
index 4fa4f225d4..b89ec692b0 100644
--- a/packages/experimental/code-runtime-python/tests/runtime.spec.ts
+++ b/packages/experimental/code-runtime-python/tests/runtime.spec.ts
@@ -1517,10 +1517,14 @@ describe('PythonCodeRuntime — programs and bindings', () => {
       const { runtime } = await setup({ maxLogBytes: 3072, maxWallMs: 30_000 })
       result = await runtime.run({
         program: [
-          'import os',
-          'for _ in range(6000):',
+          'import os, time',
+          // One byte per chunk on every host: a plain yield lets a loaded
+          // reader coalesce, and the coalesced chunk is what the bound below
+          // measures. The payload stays above the 2048 discriminator, so a
+          // raw-byte undercount still flushes the whole residual at EOF.
+          'for _ in range(3200):',
           '    os.write(1, b"\\xff")',
-          '    os.sched_yield()',
+          '    time.sleep(0.001)',
           'return None',
         ].join('\n'),
         bindings: [],
@@ -1534,7 +1538,10 @@ describe('PythonCodeRuntime — programs and bindings', () => {
     // merged buffer stays well under 2048. A raw-byte undercount would let it
     // reach ~3072 before flushing, so 2048 discriminates.
     expect(maxConcat).toBeLessThan(2048)
-  })
+    // The paced payload costs ~3.2s deterministically, which is above the
+    // 5000ms default the local unit entry grants, so the case carries its own
+    // bound instead of relying on the lane to widen it.
+  }, 20_000)
 
   it('charges a structurally-valid but illegal UTF-8 sequence its U+FFFD-decoded cost', async () => {
     // A CESU-8 lone surrogate `ED A0 80` is structurally well-formed (a 3-byte
@@ -1559,12 +1566,15 @@ describe('PythonCodeRuntime — programs and bindings', () => {
       const { runtime } = await setup({ maxLogBytes: 3072, maxWallMs: 30_000 })
       result = await runtime.run({
         program: [
-          'import os',
+          'import os, time',
           'seq = (0xed, 0xa0, 0x80)',
-          'for _ in range(2000):',
+          // 1100 sequences are 3300 raw bytes, past the 3072-byte budget a
+          // raw-byte undercount reaches, so the undercount flushes above the
+          // 2048 discriminator instead of only at EOF.
+          'for _ in range(1100):',
           '    for b in seq:',
           '        os.write(1, bytes((b,)))',
-          '        os.sched_yield()',
+          '        time.sleep(0.001)',
           'return None',
         ].join('\n'),
         bindings: [],
@@ -1579,7 +1589,10 @@ describe('PythonCodeRuntime — programs and bindings', () => {
     // largest merged buffer stays well under 2048. Charging the structural width
     // 3 would need ~1024 raw bytes, tripling the peak past 2048.
     expect(maxConcat).toBeLessThan(2048)
-  })
+    // The paced payload costs ~3.3s deterministically, which is above the
+    // 5000ms default the local unit entry grants, so the case carries its own
+    // bound instead of relying on the lane to widen it.
+  }, 20_000)
 
   it('charges a lone surrogate its full six escaped bytes, not three', async () => {
     // A forged `log` frame carrying `\ud800` escapes materializes lone
diff --git a/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts b/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts
index 1de31c00ae..cea3e4536f 100644
--- a/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts
+++ b/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts
@@ -1412,17 +1412,27 @@ describe('dsh-subagent-acp', () => {
       args: [mockServer],
       permission: 'reject',
       env: { MOCK_TRAP_SIGTERM: '1', MOCK_TEXT: 'x', MOCK_READY_FILE: ready },
-      disposeEofGraceMs: 150,
-      disposeGraceMs: 150,
+      // The graces are wall-clock budgets for the managed scope's teardown on a
+      // shared host. At 150ms the hosted image escalated while the scope could
+      // not take the signal and systemctl failed the kill ("Failed to send
+      // signal SIGKILL to auxiliary processes: Invalid argument"), surfacing as
+      // a teardown failure the configuration never asked for. The case asserts
+      // that config graces reach the real run, so the value only has to clear
+      // the host's scope handling.
+      disposeEofGraceMs: 5_000,
+      disposeGraceMs: 5_000,
     })
     const run = await ctx.subagents.start('acp', request())
     expect(start).toHaveBeenCalledExactlyOnceWith(expect.anything(), expect.objectContaining({
-      disposeEofGraceMs: 150,
-      disposeGraceMs: 150,
+      disposeEofGraceMs: 5_000,
+      disposeGraceMs: 5_000,
     }))
     await waitForFile(ready, task.timeout)
     await expect(run.dispose()).resolves.toBeUndefined()
-  })
+    // The trapped child refuses stdin EOF, so the ladder waits out the EOF
+    // grace and then the SIGTERM grace (10s) before the SIGKILL settles it.
+    // That fixed cost is above the 5000ms default the local unit entry grants.
+  }, 30_000)
 
   it('rejects a dispose grace outside the Node timer range at load', async () => {
     for (const bad of [

From 45c10ed2ce022d32ee52f057a3d9afe80051b57f Mon Sep 17 00:00:00 2001
From: Chinesezjc <jczhai@deepseek.com>
Date: Thu, 10 Sep 2026 17:36:16 +0800
Subject: [PATCH 20/32] ci: give the Linux coverage lane the hosted image's
 teardown budget

The managed-scope disposal cases in subprocess-local and bash-sandbox run past
the 5000ms default when this lane's four partitions, six workers per gate, and
sibling gates share one host. The same commit stays inside the budget on the
in-house pool: the hosted image exceeded it (run 34449848541) and the lane is
green with 90000 (run 34457655892). The Windows coverage lane already grants
the same budget for the same class of teardown.
---
 .github/workflows/ci.yml | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7c06a52d15..57ed55c36d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -121,6 +121,14 @@ jobs:
       DSH_COVERAGE_MAX_WORKERS: '6'
       DSH_COVERAGE_PARTITIONS: '4'
       DSH_GATE_CONCURRENCY: '3'
+      # Managed-scope teardown cases run past the default per-test budget when
+      # this lane's partitions, workers, and sibling gates share one host: the
+      # disposal cases in subprocess-local and bash-sandbox exceeded 5000ms on
+      # the hosted image (run 34449848541) while the same commit stayed inside
+      # the budget on the in-house pool; the lane is green with this value
+      # (run 34457655892). The Windows coverage lane grants the same budget for
+      # the same reason.
+      DSH_COVERAGE_TEST_TIMEOUT_MS: '90000'
       # A gate failure aborts the sibling gate instead of waiting out its
       # multi-minute instrumented run.
       DSH_GATE_FAIL_FAST: '1'

From 87f32dc8ca8e0e7e297a6bba517612f9a8c0b16a Mon Sep 17 00:00:00 2001
From: Chinesezjc <jczhai@deepseek.com>
Date: Thu, 10 Sep 2026 17:36:16 +0800
Subject: [PATCH 21/32] docs(notes): record the hosted-image assumptions the
 coverage suite names

The failover leg runs this suite on pools this repository does not own, and the
coverage lanes failed there on host properties their cases never named: the
containment a mocked PTY exit raced, the grace a managed scope needs before it
can take a SIGKILL, reader coalescing in the illegal-UTF-8 residual cases, and
a Windows image that refuses the folder dialog class. Record what each case
pins now, what was rejected, and the runs that measured it, so the next pool
change starts from those host dependencies instead of re-diagnosing them.
---
 ...10-hosted-image-test-assumptions.i18n.yaml |  6 +++
 ...026-09-10-hosted-image-test-assumptions.md | 39 +++++++++++++++++++
 ...-09-10-hosted-image-test-assumptions.zh.md | 39 +++++++++++++++++++
 3 files changed, 84 insertions(+)
 create mode 100644 .agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.i18n.yaml
 create mode 100644 .agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.md
 create mode 100644 .agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.zh.md

diff --git a/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.i18n.yaml b/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.i18n.yaml
new file mode 100644
index 0000000000..52a4c5dd7f
--- /dev/null
+++ b/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.i18n.yaml
@@ -0,0 +1,6 @@
+# Bilingual-pair consistency record (docs/i18n/README.md): the git blob hash of each
+# side as of the last confirmed-consistent state. Both languages carry equal authority;
+# after editing either side, bring the other along and re-record with:
+#   pnpm run verify-translation-pairing --write .agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.md
+2026-09-10-hosted-image-test-assumptions.md: e6cd1ef37dce318920d75545f816006a98989076
+2026-09-10-hosted-image-test-assumptions.zh.md: e60910aebdc2952a2bfb6ab25963a973ea41ac87
diff --git a/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.md b/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.md
new file mode 100644
index 0000000000..e6cd1ef37d
--- /dev/null
+++ b/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.md
@@ -0,0 +1,39 @@
+# Agent Note: Hosted-image assumptions in the coverage suite
+
+Status: implemented
+
+English | [中文](2026-09-10-hosted-image-test-assumptions.zh.md)
+
+## Problem
+
+The [failover leg](../process/2026-09-09-blacksmith-failover-leg.md) runs this suite on pools this repository does not own — Blacksmith's ephemeral images, and the in-house `vm-backup` and `dsh-win-ci` standbys. On the hosted image the coverage lanes failed on host properties their cases never named: whether the host offered a usable user-systemd scope decided which containment a mocked PTY exit raced; the wall-clock grace a managed scope needed before it could take a `SIGKILL` was below what a loaded image provides; a starved reader coalesced writes the illegal-UTF-8 residual cases assumed arrived as separate chunks; and a Windows Server image refuses `CoCreateInstance(CLSID_FileOpenDialog)` outright.
+
+## Decision
+
+Every case names the host property it depends on, so the same revision reports the same verdict on the in-house pool and on a hosted image.
+
+Terminal cases that drive a mocked PTY exit pin the containment they need (`internals = { platform: 'darwin' }` in `packages/subprocess/subprocess-local/tests/local.spec.ts`); under the host's native scope the mocked exit races the scope bootstrap and fails as `terminal scope exited before its bootstrap consumed the launch request`. Mocking the `linux-scope.ts` probes to reach the same path was removed: the platform pin skips both probes, so the mock could not change the selected path.
+
+`disposal contains a spawn-failure rejection that races teardown` asserts the settlement contract instead of one winner of the race: a bootstrap that published its pre-exec failure rejects with that failure, and a teardown that stopped the bootstrap first settles as the requested `SIGTERM`. Only the Linux scope records the stopped arm, because the win32 job owner turns a cancelled start into a rejection and the fallback launcher rejects the missing directory.
+
+`plugin-config dispose graces reach the real ACP run` configures 5000ms dispose graces. At 150ms the hosted image escalated while the scope could not take the signal — `systemctl` failed the kill (`Failed to send signal SIGKILL to auxiliary processes: Invalid argument`) and the teardown reported a failure the configuration never asked for. Its mock refuses stdin EOF and `SIGTERM` by design, so the case waits out both graces (~10s) and carries a 30s case budget, above the 5000ms default the local unit entry grants.
+
+Both illegal-UTF-8 residual cases in `packages/experimental/code-runtime-python/tests/runtime.spec.ts` pace their writes with `time.sleep(0.001)`: `os.sched_yield()` lets a loaded reader coalesce the writes into one chunk, and the coalesced chunk is what the wrapped `Buffer.concat` measures (the hosted image measured 2563 against the 2048 bound with a correct implementation). Their payloads stay above that bound — 3200 bytes for the `0xFF` case and 1100 `ED A0 80` sequences, 3300 raw bytes, for the CESU-8 case, past the 3072-byte budget a raw-byte undercount reaches — so the undercount still flushes above 2048. Each carries a 20s case budget for the paced writes plus the interpreter start.
+
+The Linux coverage lane grants `DSH_COVERAGE_TEST_TIMEOUT_MS: '90000'`, matching the Windows coverage lane, because the disposal cases in `subprocess-local` and `bash-sandbox` exceed the 5000ms default when the lane's partitions, workers, and sibling gates share one host.
+
+The Windows folder-dialog smoke probes `CoCreateInstance(CLSID_FileOpenDialog)` through PowerShell instead of gating on `process.platform`. An image that answers `CLASS_E_CLASSNOTAVAILABLE` (0x80040111) runs the clean-rejection case and skips the real-dialog case, so `win32-dialog.ts` keeps its file coverage without a host that can open a dialog. Every exception from that activation reads as refusal, so a host failing the probe for another reason only loses the real-dialog case; a probe that cannot run at all keeps the win32 assumption.
+
+## Alternatives considered
+
+**Excluding the coverage lanes from the hosted leg.** Rejected: the leg exists to run the same suite on another pool, and the failures named real host dependencies rather than a suite the pool cannot support.
+
+**Raising only the lane's per-test budget.** Rejected: a wider budget does not change the cases whose cost or behaviour is deterministic — a trapped ACP child still waits out both graces, and a coalesced reader still inflates the measured peak.
+
+**Keeping the `linux-scope.ts` probe mocks.** Rejected as inert: the platform pin selects the fallback path before either probe is called, so the mock changed no execution path.
+
+**Cutting the illegal-UTF-8 payloads to keep the cases fast.** Rejected: below the 2048 bound the assertion can no longer fail for the undercount it names, which leaves the regression unguarded.
+
+## Consequences
+
+The suite's verdict no longer depends on which pool served the lane, at the cost of fixtures pinned to one containment choice: the `linux-scope` and win32-job paths keep their own dedicated cases instead of being reached through these ones. The ACP dispose case costs about 10s of wall clock per run and each residual case about 3.5s, all deterministic rather than host-paced. Hosted-image evidence: [run 34449848541](https://github.com/deepseek-harness/deepseek-harness/actions/runs/34449848541) failed on these cases, [run 34457655892](https://github.com/deepseek-harness/deepseek-harness/actions/runs/34457655892) is green with this diff plus the 90000ms lane budget, and `windows node 24 / coverage` is green on five consecutive hosted runs, where the probe reports the refusal (`clsid-probe=refused`).
diff --git a/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.zh.md b/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.zh.md
new file mode 100644
index 0000000000..e60910aebd
--- /dev/null
+++ b/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.zh.md
@@ -0,0 +1,39 @@
+# Agent Note: coverage 套件里的托管镜像假设
+
+Status: implemented
+
+[English](2026-09-10-hosted-image-test-assumptions.md) | 中文
+
+## 问题
+
+[故障切换支路](../process/2026-09-09-blacksmith-failover-leg.zh.md)会把这套测试跑在本仓库不拥有的池上——Blacksmith 的临时镜像，以及自有的 `vm-backup` 与 `dsh-win-ci` 备用池。在托管镜像上，coverage 各通道的失败来自用例从未点明的宿主属性：宿主是否提供可用的用户级 systemd scope，决定了被 mock 的 PTY 退出会与哪种 containment 竞争；托管 scope 接受 `SIGKILL` 之前所需的墙钟宽限，低于负载镜像实际提供的量；读端被抢占时会把非法 UTF-8 残余用例假定为独立分块的写入合并成一个分块；以及 Windows Server 镜像直接拒绝 `CoCreateInstance(CLSID_FileOpenDialog)`。
+
+## 决策
+
+每个用例都点明它依赖的宿主属性，因此同一份修订在自有池与托管镜像上给出同样的结论。
+
+驱动被 mock 的 PTY 退出的终端用例钉死自己需要的 containment（`packages/subprocess/subprocess-local/tests/local.spec.ts` 中的 `internals = { platform: 'darwin' }`）；在宿主的原生 scope 下，被 mock 的退出会与 scope 的 bootstrap 竞争，并以 `terminal scope exited before its bootstrap consumed the launch request` 失败。为走到同一路径而 mock `linux-scope.ts` 的探针已被删除：平台钉死会让两个探针都不被调用，因此该 mock 无法改变选中的路径。
+
+`disposal contains a spawn-failure rejection that races teardown` 断言结算契约，而不是这场竞争的某一方获胜：已经发布其 pre-exec 失败的 bootstrap 以该失败 reject，先停住 bootstrap 的 teardown 则以被请求的 `SIGTERM` 结算。只有 Linux scope 会记录停止这一支，因为 win32 job owner 会把被取消的启动转成 rejection，fallback 启动器则因目录缺失而 reject。
+
+`plugin-config dispose graces reach the real ACP run` 配置 5000ms 的 dispose 宽限。在 150ms 时，托管镜像在 scope 还无法接受信号时就升级了信号——`systemctl` 的 kill 失败（`Failed to send signal SIGKILL to auxiliary processes: Invalid argument`），teardown 上报了一个配置从未要求的失败。该用例的 mock 按设计既拒绝 stdin EOF 也拒绝 `SIGTERM`，因此用例会等满两个宽限（约 10s），并自带 30s 的用例预算，高于本地单测入口授予的 5000ms 默认值。
+
+`packages/experimental/code-runtime-python/tests/runtime.spec.ts` 的两个非法 UTF-8 残余用例都用 `time.sleep(0.001)` 控制写入节奏：`os.sched_yield()` 会让被抢占的读端把多次写入合并成一个分块，而被包裹的 `Buffer.concat` 测量的正是该分块（在正确实现下，托管镜像测得 2563，超过了 2048 的界）。两个用例的载荷都保持在该界之上——`0xFF` 用例 3200 字节，CESU-8 用例 1100 个 `ED A0 80` 序列（3300 原始字节，超过按原始字节计费会触及的 3072 字节预算）——因此少计仍然会在 2048 之上触发 flush。两者各自带有 20s 的用例预算，容纳带节奏的写入与解释器启动。
+
+Linux coverage 通道授予 `DSH_COVERAGE_TEST_TIMEOUT_MS: '90000'`，与 Windows coverage 通道一致，因为当该通道的分区、worker 与同级门禁共用一个宿主时，`subprocess-local` 与 `bash-sandbox` 的处置用例会超过 5000ms 默认值。
+
+Windows 文件夹对话框冒烟测试改为通过 PowerShell 探测 `CoCreateInstance(CLSID_FileOpenDialog)`，而不再按 `process.platform` 分流。回答 `CLASS_E_CLASSNOTAVAILABLE`（0x80040111）的镜像会跑干净的拒绝用例并跳过真实对话框用例，因此 `win32-dialog.ts` 在没有可开对话框的宿主上仍保有文件覆盖率。该激活过程抛出的任何异常都按拒绝解读，因此因其它原因探测失败的宿主只会失去真实对话框用例；完全无法运行的探测则保留 win32 假设。
+
+## 备选方案
+
+**把 coverage 通道排除出托管支路。** 否决：该支路的意义就是把同一套测试跑在另一个池上，而这些失败点出的是真实的宿主依赖，不是一个该池无法支撑的套件。
+
+**只抬高通道的每用例预算。** 否决：更宽的预算改变不了那些成本或行为确定的用例——被 trap 的 ACP 子进程仍然会等满两个宽限，被合并的读端仍然会抬高测得的峰值。
+
+**保留 `linux-scope.ts` 的探针 mock。** 因无效而否决：平台钉死会在任一探针被调用前就选中 fallback 路径，因此该 mock 没有改变任何执行路径。
+
+**削减非法 UTF-8 的载荷以让用例更快。** 否决：低于 2048 的界之后，断言再也无法为它所点名的少计而失败，等于让该回归失去守护。
+
+## 后果
+
+套件的结论不再取决于哪个池服务了这条通道，代价是被钉在某一 containment 选择上的 fixture：`linux-scope` 与 win32-job 两条路径仍由各自的专用用例覆盖，而不是经由这些用例抵达。ACP 处置用例每次运行约 10s 墙钟，每个残余用例约 3.5s，且都是确定成本而非随宿主浮动。托管镜像证据：[run 34449848541](https://github.com/deepseek-harness/deepseek-harness/actions/runs/34449848541) 在这些用例上失败，[run 34457655892](https://github.com/deepseek-harness/deepseek-harness/actions/runs/34457655892) 在本改动加 90000ms 通道预算下转绿，`windows node 24 / coverage` 在连续五次托管运行中为绿，其中探针报告拒绝（`clsid-probe=refused`）。

From c4c2d163083c701e8584b4f0cb1d955b68ab2bef Mon Sep 17 00:00:00 2001
From: Chinesezjc <jczhai@deepseek.com>
Date: Thu, 10 Sep 2026 17:36:14 +0800
Subject: [PATCH 22/32] test(subprocess): align the teardown race with the
 settlement contract
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

`disposal contains a spawn-failure rejection that races teardown` asserted one
winner of the race. A bootstrap that publishes its pre-exec failure rejects with
that failure, and a teardown that stops the bootstrap first settles as the
requested termination — the recorded failure only outranks the stop when it was
published before the stop landed. Assert the contract instead: a rejection
carries the failure, a stop carries SIGTERM, which only the Linux scope records
because the win32 job owner and the fallback launcher both reject the start.

The two terminal cases that drive a mocked PTY exit state why they pin
`internals.platform`: under the host's native scope the mocked exit races the
scope bootstrap and fails as `terminal scope exited before its bootstrap
consumed the launch request`.

(cherry picked from commit fee113eb9a5632555304858d2bf6355588a3aaf0)
---
 .../subprocess-local/tests/local.spec.ts      | 24 +++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/packages/subprocess/subprocess-local/tests/local.spec.ts b/packages/subprocess/subprocess-local/tests/local.spec.ts
index 135638f54a..a13f589de1 100644
--- a/packages/subprocess/subprocess-local/tests/local.spec.ts
+++ b/packages/subprocess/subprocess-local/tests/local.spec.ts
@@ -393,6 +393,8 @@ describe('LocalSubprocessRuntime', () => {
       const ctx = new Context()
       const fiber = await ctx.plugin(IsolatedLocalSubprocessRuntime)
       const service = ctx.subprocess as InstanceType<typeof IsolatedLocalSubprocessRuntime>
+      // Pins the containment choice: with the host's native scope a mocked PTY
+      // exit races the scope bootstrap.
       service.internals = { platform: 'darwin' }
       const handle = await ctx.subprocess.spawnTerminal({
         argv: ['shell'], cwd: process.cwd(), rows: 24, cols: 80, graceMs: 1,
@@ -600,6 +602,8 @@ describe('LocalSubprocessRuntime', () => {
       ctx.logger.error = ((error: unknown) => { disposalErrors.push(error) }) as typeof ctx.logger.error
       const fiber = await ctx.plugin(IsolatedLocalSubprocessRuntime)
       const alive = new Set([124])
+      // Pins the containment choice: with the host's native scope a mocked PTY
+      // exit races the scope bootstrap.
       ;(ctx.subprocess as InstanceType<typeof IsolatedLocalSubprocessRuntime>).internals = { platform: 'darwin' }
       ;(ctx.subprocess as InstanceType<typeof IsolatedLocalSubprocessRuntime>).terminalInspector = {
         foregroundPgid: () => 123,
@@ -878,10 +882,26 @@ describe('LocalSubprocessRuntime', () => {
     const ctx = new Context()
     const fiber = await ctx.plugin(LocalSubprocessRuntime)
     // Dispose before the rejection continuation removes the handle from the
-    // live set, so teardown itself must swallow the rejected done.
+    // live set, so teardown itself must swallow the rejected done. Two
+    // settlements are valid and the winner is a race: a bootstrap that
+    // publishes its pre-exec failure rejects with that failure, and a teardown
+    // that stops the bootstrap first settles as the requested termination —
+    // the recorded failure only outranks the stop when it was published before
+    // the stop landed.
     const handle = ctx.subprocess.spawn(spec('true', { cwd: '/nonexistent-dir-dsh-subprocess-test' }))
     await fiber.dispose()
-    await expect(handle.done).rejects.toThrow()
+    const settlement = await handle.done.then(
+      outcome => ({ kind: 'stopped' as const, outcome }),
+      (error: unknown) => ({ kind: 'failed' as const, error }),
+    )
+    if (settlement.kind === 'failed') {
+      expect(settlement.error).toBeInstanceOf(Error)
+    } else {
+      // Only the Linux scope records a stop this way: the win32 job owner
+      // rejects a cancelled start and the fallback launcher rejects the ENOENT,
+      // so neither can produce the stopped branch.
+      expect(settlement.outcome.signal).toBe('SIGTERM')
+    }
   })
 
   it('loading a second implementation throws (one processes service per context — cordis standard)', async () => {

From 114e8c9b0950ba545915ea9d2e057521f3dfccc8 Mon Sep 17 00:00:00 2001
From: Chinesezjc <jczhai@deepseek.com>
Date: Thu, 10 Sep 2026 17:36:15 +0800
Subject: [PATCH 23/32] test: drop two host-paced assumptions the hosted image
 exposes
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The ACP plugin-config case drove a real dispose with 150ms graces. On the hosted
image the SIGKILL escalation landed while the managed scope could not take the
signal — systemctl failed the kill ("Failed to send signal SIGKILL to auxiliary
processes: Invalid argument") — so the run reported a teardown failure the
configuration never asked for. The case asserts that config graces reach the
real run, so the values only need to clear the host's scope handling. Its mock
refuses stdin EOF and SIGTERM by design, so the case waits out both graces and
carries its own budget for that fixed cost.

Both illegal-UTF-8 residual cases relied on a plain sched_yield leaving each
write as its own read chunk. A starved reader coalesces hundreds of bytes into
one chunk, which inflates the measured peak for correct accounting too: the
hosted image measured 2563 against the 2048 bound. Pace with a real sleep so
each byte is its own chunk everywhere, and keep each payload above the bound
(3200 bytes; 1100 CESU-8 sequences) so a raw-byte undercount still flushes past
it instead of only at EOF.

(cherry picked from commit 30e0c3ff0415befe3652a55611df8a18d82c18bb)
---
 .../code-runtime-python/tests/runtime.spec.ts | 29 ++++++++++++++-----
 .../subagent-acp/tests/subagent-acp.spec.ts   | 20 +++++++++----
 2 files changed, 36 insertions(+), 13 deletions(-)

diff --git a/packages/experimental/code-runtime-python/tests/runtime.spec.ts b/packages/experimental/code-runtime-python/tests/runtime.spec.ts
index 4fa4f225d4..b89ec692b0 100644
--- a/packages/experimental/code-runtime-python/tests/runtime.spec.ts
+++ b/packages/experimental/code-runtime-python/tests/runtime.spec.ts
@@ -1517,10 +1517,14 @@ describe('PythonCodeRuntime — programs and bindings', () => {
       const { runtime } = await setup({ maxLogBytes: 3072, maxWallMs: 30_000 })
       result = await runtime.run({
         program: [
-          'import os',
-          'for _ in range(6000):',
+          'import os, time',
+          // One byte per chunk on every host: a plain yield lets a loaded
+          // reader coalesce, and the coalesced chunk is what the bound below
+          // measures. The payload stays above the 2048 discriminator, so a
+          // raw-byte undercount still flushes the whole residual at EOF.
+          'for _ in range(3200):',
           '    os.write(1, b"\\xff")',
-          '    os.sched_yield()',
+          '    time.sleep(0.001)',
           'return None',
         ].join('\n'),
         bindings: [],
@@ -1534,7 +1538,10 @@ describe('PythonCodeRuntime — programs and bindings', () => {
     // merged buffer stays well under 2048. A raw-byte undercount would let it
     // reach ~3072 before flushing, so 2048 discriminates.
     expect(maxConcat).toBeLessThan(2048)
-  })
+    // The paced payload costs ~3.2s deterministically, which is above the
+    // 5000ms default the local unit entry grants, so the case carries its own
+    // bound instead of relying on the lane to widen it.
+  }, 20_000)
 
   it('charges a structurally-valid but illegal UTF-8 sequence its U+FFFD-decoded cost', async () => {
     // A CESU-8 lone surrogate `ED A0 80` is structurally well-formed (a 3-byte
@@ -1559,12 +1566,15 @@ describe('PythonCodeRuntime — programs and bindings', () => {
       const { runtime } = await setup({ maxLogBytes: 3072, maxWallMs: 30_000 })
       result = await runtime.run({
         program: [
-          'import os',
+          'import os, time',
           'seq = (0xed, 0xa0, 0x80)',
-          'for _ in range(2000):',
+          // 1100 sequences are 3300 raw bytes, past the 3072-byte budget a
+          // raw-byte undercount reaches, so the undercount flushes above the
+          // 2048 discriminator instead of only at EOF.
+          'for _ in range(1100):',
           '    for b in seq:',
           '        os.write(1, bytes((b,)))',
-          '        os.sched_yield()',
+          '        time.sleep(0.001)',
           'return None',
         ].join('\n'),
         bindings: [],
@@ -1579,7 +1589,10 @@ describe('PythonCodeRuntime — programs and bindings', () => {
     // largest merged buffer stays well under 2048. Charging the structural width
     // 3 would need ~1024 raw bytes, tripling the peak past 2048.
     expect(maxConcat).toBeLessThan(2048)
-  })
+    // The paced payload costs ~3.3s deterministically, which is above the
+    // 5000ms default the local unit entry grants, so the case carries its own
+    // bound instead of relying on the lane to widen it.
+  }, 20_000)
 
   it('charges a lone surrogate its full six escaped bytes, not three', async () => {
     // A forged `log` frame carrying `\ud800` escapes materializes lone
diff --git a/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts b/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts
index 1de31c00ae..cea3e4536f 100644
--- a/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts
+++ b/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts
@@ -1412,17 +1412,27 @@ describe('dsh-subagent-acp', () => {
       args: [mockServer],
       permission: 'reject',
       env: { MOCK_TRAP_SIGTERM: '1', MOCK_TEXT: 'x', MOCK_READY_FILE: ready },
-      disposeEofGraceMs: 150,
-      disposeGraceMs: 150,
+      // The graces are wall-clock budgets for the managed scope's teardown on a
+      // shared host. At 150ms the hosted image escalated while the scope could
+      // not take the signal and systemctl failed the kill ("Failed to send
+      // signal SIGKILL to auxiliary processes: Invalid argument"), surfacing as
+      // a teardown failure the configuration never asked for. The case asserts
+      // that config graces reach the real run, so the value only has to clear
+      // the host's scope handling.
+      disposeEofGraceMs: 5_000,
+      disposeGraceMs: 5_000,
     })
     const run = await ctx.subagents.start('acp', request())
     expect(start).toHaveBeenCalledExactlyOnceWith(expect.anything(), expect.objectContaining({
-      disposeEofGraceMs: 150,
-      disposeGraceMs: 150,
+      disposeEofGraceMs: 5_000,
+      disposeGraceMs: 5_000,
     }))
     await waitForFile(ready, task.timeout)
     await expect(run.dispose()).resolves.toBeUndefined()
-  })
+    // The trapped child refuses stdin EOF, so the ladder waits out the EOF
+    // grace and then the SIGTERM grace (10s) before the SIGKILL settles it.
+    // That fixed cost is above the 5000ms default the local unit entry grants.
+  }, 30_000)
 
   it('rejects a dispose grace outside the Node timer range at load', async () => {
     for (const bad of [

From 03770494656e5162cea496826486f9ad23a4ac21 Mon Sep 17 00:00:00 2001
From: Chinesezjc <jczhai@deepseek.com>
Date: Thu, 10 Sep 2026 17:36:16 +0800
Subject: [PATCH 24/32] ci: give the Linux coverage lane the hosted image's
 teardown budget

The managed-scope disposal cases in subprocess-local and bash-sandbox run past
the 5000ms default when this lane's four partitions, six workers per gate, and
sibling gates share one host. The same commit stays inside the budget on the
in-house pool: the hosted image exceeded it (run 34449848541) and the lane is
green with 90000 (run 34457655892). The Windows coverage lane already grants
the same budget for the same class of teardown.

(cherry picked from commit bf3468adf0947a51f09d4a1aaae2865f3e50a2f2)
---
 .github/workflows/ci.yml | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7c06a52d15..57ed55c36d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -121,6 +121,14 @@ jobs:
       DSH_COVERAGE_MAX_WORKERS: '6'
       DSH_COVERAGE_PARTITIONS: '4'
       DSH_GATE_CONCURRENCY: '3'
+      # Managed-scope teardown cases run past the default per-test budget when
+      # this lane's partitions, workers, and sibling gates share one host: the
+      # disposal cases in subprocess-local and bash-sandbox exceeded 5000ms on
+      # the hosted image (run 34449848541) while the same commit stayed inside
+      # the budget on the in-house pool; the lane is green with this value
+      # (run 34457655892). The Windows coverage lane grants the same budget for
+      # the same reason.
+      DSH_COVERAGE_TEST_TIMEOUT_MS: '90000'
       # A gate failure aborts the sibling gate instead of waiting out its
       # multi-minute instrumented run.
       DSH_GATE_FAIL_FAST: '1'

From 3b5daf10be073d5cbe84437e86ccb9188072cd50 Mon Sep 17 00:00:00 2001
From: turtle1999 <turtle1999@deepseek.com>
Date: Thu, 10 Sep 2026 18:16:47 +0800
Subject: [PATCH 25/32] test(ci): verify current master on PR runners


From 0963bdd7d3cf77f3c3542afd1facd18f51f01163 Mon Sep 17 00:00:00 2001
From: turtle1999 <turtle1999@deepseek.com>
Date: Thu, 10 Sep 2026 18:29:04 +0800
Subject: [PATCH 26/32] test(python): control stray-output fragments for
 sealing coverage

---
 ...10-hosted-image-test-assumptions.i18n.yaml |  4 +-
 ...026-09-10-hosted-image-test-assumptions.md |  2 +
 ...-09-10-hosted-image-test-assumptions.zh.md |  2 +
 .../code-runtime-python/tests/runtime.spec.ts | 52 -----------------
 .../tests/stray-fragments.spec.ts             | 56 +++++++++++++++++++
 5 files changed, 62 insertions(+), 54 deletions(-)
 create mode 100644 packages/experimental/code-runtime-python/tests/stray-fragments.spec.ts

diff --git a/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.i18n.yaml b/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.i18n.yaml
index 52a4c5dd7f..241a9e9d5f 100644
--- a/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.i18n.yaml
+++ b/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write .agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.md
-2026-09-10-hosted-image-test-assumptions.md: e6cd1ef37dce318920d75545f816006a98989076
-2026-09-10-hosted-image-test-assumptions.zh.md: e60910aebdc2952a2bfb6ab25963a973ea41ac87
+2026-09-10-hosted-image-test-assumptions.md: 5cf3b14503162d67d0fbb27743228cb1a8d7ffe2
+2026-09-10-hosted-image-test-assumptions.zh.md: db82566c11b50b9203d30f7be6aec1378512f94b
diff --git a/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.md b/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.md
index e6cd1ef37d..5cf3b14503 100644
--- a/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.md
+++ b/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.md
@@ -20,6 +20,8 @@ Terminal cases that drive a mocked PTY exit pin the containment they need (`inte
 
 Both illegal-UTF-8 residual cases in `packages/experimental/code-runtime-python/tests/runtime.spec.ts` pace their writes with `time.sleep(0.001)`: `os.sched_yield()` lets a loaded reader coalesce the writes into one chunk, and the coalesced chunk is what the wrapped `Buffer.concat` measures (the hosted image measured 2563 against the 2048 bound with a correct implementation). Their payloads stay above that bound — 3200 bytes for the `0xFF` case and 1100 `ED A0 80` sequences, 3300 raw bytes, for the CESU-8 case, past the 3072-byte budget a raw-byte undercount reaches — so the undercount still flushes above 2048. Each carries a 20s case budget for the paced writes plus the interpreter start.
 
+The stray-output sealing test in `packages/experimental/code-runtime-python/tests/stray-fragments.spec.ts` keeps a real Python child but splits its stdout reads into single-byte events. OS pipe coalescing cannot guarantee the 1024 fragments needed to seal a block: [run 34465259316](https://github.com/deepseek-harness/deepseek-harness/actions/runs/34465259316) passed all assertions but missed that branch. The controlled reads exercise repeated sealing and the final newline merge; exact output and bounded copy volume detect dropped bytes and repeated prefix copies.
+
 The Linux coverage lane grants `DSH_COVERAGE_TEST_TIMEOUT_MS: '90000'`, matching the Windows coverage lane, because the disposal cases in `subprocess-local` and `bash-sandbox` exceed the 5000ms default when the lane's partitions, workers, and sibling gates share one host.
 
 The Windows folder-dialog smoke probes `CoCreateInstance(CLSID_FileOpenDialog)` through PowerShell instead of gating on `process.platform`. An image that answers `CLASS_E_CLASSNOTAVAILABLE` (0x80040111) runs the clean-rejection case and skips the real-dialog case, so `win32-dialog.ts` keeps its file coverage without a host that can open a dialog. Every exception from that activation reads as refusal, so a host failing the probe for another reason only loses the real-dialog case; a probe that cannot run at all keeps the win32 assumption.
diff --git a/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.zh.md b/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.zh.md
index e60910aebd..db82566c11 100644
--- a/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.zh.md
+++ b/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.zh.md
@@ -20,6 +20,8 @@ Status: implemented
 
 `packages/experimental/code-runtime-python/tests/runtime.spec.ts` 的两个非法 UTF-8 残余用例都用 `time.sleep(0.001)` 控制写入节奏：`os.sched_yield()` 会让被抢占的读端把多次写入合并成一个分块，而被包裹的 `Buffer.concat` 测量的正是该分块（在正确实现下，托管镜像测得 2563，超过了 2048 的界）。两个用例的载荷都保持在该界之上——`0xFF` 用例 3200 字节，CESU-8 用例 1100 个 `ED A0 80` 序列（3300 原始字节，超过按原始字节计费会触及的 3072 字节预算）——因此少计仍然会在 2048 之上触发 flush。两者各自带有 20s 的用例预算，容纳带节奏的写入与解释器启动。
 
+`packages/experimental/code-runtime-python/tests/stray-fragments.spec.ts` 的原生输出分块封存测试保留真实 Python 子进程，但把 stdout 读取拆成单字节事件。操作系统的管道合并无法保证达到封存一块所需的 1024 个片段：[run 34465259316](https://github.com/deepseek-harness/deepseek-harness/actions/runs/34465259316) 的全部断言通过，却未覆盖该分支。可控读取覆盖反复封存和末尾换行合并；精确输出与复制总量上限检测字节丢失和前缀反复复制。
+
 Linux coverage 通道授予 `DSH_COVERAGE_TEST_TIMEOUT_MS: '90000'`，与 Windows coverage 通道一致，因为当该通道的分区、worker 与同级门禁共用一个宿主时，`subprocess-local` 与 `bash-sandbox` 的处置用例会超过 5000ms 默认值。
 
 Windows 文件夹对话框冒烟测试改为通过 PowerShell 探测 `CoCreateInstance(CLSID_FileOpenDialog)`，而不再按 `process.platform` 分流。回答 `CLASS_E_CLASSNOTAVAILABLE`（0x80040111）的镜像会跑干净的拒绝用例并跳过真实对话框用例，因此 `win32-dialog.ts` 在没有可开对话框的宿主上仍保有文件覆盖率。该激活过程抛出的任何异常都按拒绝解读，因此因其它原因探测失败的宿主只会失去真实对话框用例；完全无法运行的探测则保留 win32 假设。
diff --git a/packages/experimental/code-runtime-python/tests/runtime.spec.ts b/packages/experimental/code-runtime-python/tests/runtime.spec.ts
index b89ec692b0..1f3fd6cb1e 100644
--- a/packages/experimental/code-runtime-python/tests/runtime.spec.ts
+++ b/packages/experimental/code-runtime-python/tests/runtime.spec.ts
@@ -4759,58 +4759,6 @@ describe('PythonCodeRuntime — hostile peer', () => {
     expect(copied).toBeLessThan(256 * 1024)
   }, 40_000)
 
-  it('seals trickled stray fragments into blocks without recopying the sealed prefix', async () => {
-    // The stray-capture buffer has the same object-overhead exposure as the fd-3
-    // reader above: each newline-free `data` chunk is its own Buffer, so a
-    // program pacing single-byte `os.write(1, ...)` accumulates one object per
-    // write, which the serialized-cost counter cannot see. Past MAX_PENDING_CHUNKS
-    // the fragments seal into a finished block; re-merging the whole residual at
-    // each threshold instead would copy the sealed prefix again and again, making
-    // the cumulative copy volume quadratic. `Buffer.concat` is wrapped to measure
-    // that volume — both shapes admit the same final log entry, so the copy total
-    // is the discriminator. maxLogBytes is raised so the trickle is retained,
-    // not truncated, which is what forces the fragments to accumulate and seal.
-    const realConcat = Buffer.concat.bind(Buffer)
-    let copied = 0
-    Buffer.concat = (list: readonly Uint8Array[], total?: number): Buffer<ArrayBuffer> => {
-      for (const part of list) copied += part.length
-      return realConcat(list, total)
-    }
-    let result: CodeRunResult
-    try {
-      const { runtime } = await setup({ maxLogBytes: 200_000, maxWallMs: 30_000 })
-      result = await runtime.run({
-        program: [
-          'import os',
-          'for _ in range(60000):',
-          '    os.write(1, b"x")',
-          '    os.sched_yield()',
-          'os.write(1, b"\\n")',
-          'return "done"',
-        ].join('\n'),
-        bindings: [],
-      })
-    } finally {
-      Buffer.concat = realConcat
-    }
-    expect(result.error).toBeUndefined()
-    expect(result.value).toBe('done')
-    // The trickle coalesces into one log line (no interior newlines). Its exact
-    // length depends on pipe coalescing, but it is one entry and non-empty.
-    expect(result.logs.length).toBe(1)
-    expect((result.logs[0] as string).length).toBeGreaterThan(0)
-    // Sealing appends a finished block rather than re-merging everything held, so
-    // each byte is copied a bounded number of times. Re-merging the whole
-    // residual at every seal threshold instead makes the cumulative copy volume
-    // quadratic. Measured like the fd-3 sibling above rather than reasoned about:
-    // this sealed shape copies about 120 KB for 60000 trickled bytes, the
-    // re-merging shape about 538 KB (the stray path adds one whole-residual
-    // concat at the terminating newline over the fd-3 sibling's 119/540, landing
-    // at the same order). 256 KiB sits between them with margin on both sides, so
-    // reverting the seal to a re-merge turns this assertion red.
-    expect(copied).toBeLessThan(256 * 1024)
-  }, 40_000)
-
   it('caps a huge exception diagnostic child-side before it crosses the wire', async () => {
     // A program can raise with a multi-megabyte message; the child must cap
     // it at maxValueBytes before formatting/sending, not ship the whole
diff --git a/packages/experimental/code-runtime-python/tests/stray-fragments.spec.ts b/packages/experimental/code-runtime-python/tests/stray-fragments.spec.ts
new file mode 100644
index 0000000000..9ed70c558b
--- /dev/null
+++ b/packages/experimental/code-runtime-python/tests/stray-fragments.spec.ts
@@ -0,0 +1,56 @@
+import { Context } from '@deepseek-ai/cordis'
+import { expect, it, vi } from 'vitest'
+
+// Keep the interpreter and pipe lifecycle real; only OS-dependent read sizes
+// change. Each byte reaches the runtime as its own data event.
+vi.mock('node:child_process', async (importOriginal) => {
+  const actual = await importOriginal<typeof import('node:child_process')>()
+  return {
+    ...actual,
+    spawn: vi.fn(actual.spawn).mockImplementation((...args) => {
+      const child = actual.spawn(...args)
+      const stdout = child.stdout!
+      const emit = stdout.emit.bind(stdout)
+      stdout.emit = (event: string | symbol, ...values: unknown[]) => {
+        if (event !== 'data') return emit(event, ...values)
+        const chunk = values[0] as Buffer
+        for (let offset = 0; offset < chunk.length; offset++) {
+          emit('data', chunk.subarray(offset, offset + 1))
+        }
+        return true
+      }
+      return child
+    }),
+  }
+})
+
+const { PythonCodeRuntime } = await import('../src/index.ts')
+
+it('seals stray fragments without recopying the sealed prefix', async () => {
+  const ctx = new Context()
+  const fiber = await ctx.plugin(PythonCodeRuntime, { maxLogBytes: 200_000, maxWallMs: 30_000 })
+  const realConcat = Buffer.concat.bind(Buffer)
+  let copied = 0
+  let maxFragments = 0
+  const concat = vi.spyOn(Buffer, 'concat').mockImplementation((list, total) => {
+    maxFragments = Math.max(maxFragments, list.length)
+    for (const part of list) copied += part.length
+    return realConcat(list, total)
+  })
+  try {
+    const result = await ctx.codeRuntime.run({
+      program: 'import os\nos.write(1, b"x" * 60000 + b"\\n")\nreturn "done"',
+      bindings: [],
+    })
+    expect(result.error).toBeUndefined()
+    expect(result.value).toBe('done')
+    expect(result.logs).toEqual(['x'.repeat(60_000)])
+    // Sealing copies each byte at most twice; merging every accumulated prefix
+    // instead copies over a megabyte for these 60,001 controlled fragments.
+    expect(maxFragments).toBeLessThanOrEqual(1024)
+    expect(copied).toBeLessThan(256 * 1024)
+  } finally {
+    concat.mockRestore()
+    await fiber.dispose()
+  }
+}, 40_000)

From 2eed93628c0f447cbc2c38e4068fe13165d7ec2a Mon Sep 17 00:00:00 2001
From: ZiyaZhang <199893125+ZiyaZhang@users.noreply.github.com>
Date: Thu, 10 Sep 2026 05:00:38 -0700
Subject: [PATCH 27/32] fix(web): shorten Chinese question skip label

---
 packages/client/ui-user-questions/src/client/locales.ts     | 2 +-
 .../tests/user-questions-composer.client.spec.tsx           | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/packages/client/ui-user-questions/src/client/locales.ts b/packages/client/ui-user-questions/src/client/locales.ts
index b3c4232c25..7d8f0c2531 100644
--- a/packages/client/ui-user-questions/src/client/locales.ts
+++ b/packages/client/ui-user-questions/src/client/locales.ts
@@ -11,7 +11,7 @@ export const zh = {
   'nav.cancel': '放弃整组问题',
   'option.recommended': '推荐',
   'custom.placeholder': '输入你的答案',
-  'action.skip': '跳过本题',
+  'action.skip': '跳过',
   'action.next': '下一题',
   'plan.header': '计划待审',
   'plan.approve': '确认执行',
diff --git a/packages/client/ui-user-questions/tests/user-questions-composer.client.spec.tsx b/packages/client/ui-user-questions/tests/user-questions-composer.client.spec.tsx
index 90848b3e9e..5bf5fb483c 100644
--- a/packages/client/ui-user-questions/tests/user-questions-composer.client.spec.tsx
+++ b/packages/client/ui-user-questions/tests/user-questions-composer.client.spec.tsx
@@ -247,9 +247,9 @@ describe('QuestionComposer', () => {
     expect((screen.getByText('下一题').closest('button') as HTMLButtonElement).disabled).toBe(true)
     fireEvent.click(screen.getByRole('radio', { name: '研究潜力型' }))
     expect(screen.getByText('2 / 3')).toBeTruthy()
-    fireEvent.click(screen.getByRole('button', { name: '跳过本题' }))
+    fireEvent.click(screen.getByRole('button', { name: '跳过' }))
     expect(screen.getByText('3 / 3')).toBeTruthy()
-    fireEvent.click(screen.getByRole('button', { name: '跳过本题' }))
+    fireEvent.click(screen.getByRole('button', { name: '跳过' }))
 
     expect(answer).toHaveBeenCalledWith(answerBatch([
       { id: 'profile', selected: ['研究潜力型'] },
@@ -346,7 +346,7 @@ describe('QuestionComposer', () => {
 
     fireEvent.click(screen.getByRole('button', { name: '放弃整组问题' }))
     expect(await screen.findByText('第一次取消失败')).toBeTruthy()
-    expect(screen.getByRole<HTMLButtonElement>('button', { name: '跳过本题' }).disabled).toBe(false)
+    expect(screen.getByRole<HTMLButtonElement>('button', { name: '跳过' }).disabled).toBe(false)
 
     fireEvent.click(screen.getByRole('button', { name: '放弃整组问题' }))
     expect(await screen.findByText('第二次取消失败')).toBeTruthy()

From 69db89f84899f3a6bcf36affa48a8179ebe5d5de Mon Sep 17 00:00:00 2001
From: ZiyaZhang <199893125+ZiyaZhang@users.noreply.github.com>
Date: Thu, 10 Sep 2026 05:06:14 -0700
Subject: [PATCH 28/32] fix(web): shorten English question skip label

---
 apps/web/tests/built-boot.expected.e2e.ts                     | 2 +-
 apps/web/tests/question-composer.e2e.ts                       | 2 +-
 packages/client/ui-user-questions/README.i18n.yaml            | 4 ++--
 packages/client/ui-user-questions/README.md                   | 2 +-
 packages/client/ui-user-questions/README.zh.md                | 2 +-
 packages/client/ui-user-questions/src/client/locales.ts       | 2 +-
 .../tests/user-questions-composer.client.spec.tsx             | 2 +-
 snapshots/web/question-composer/composed.expected.md          | 2 +-
 snapshots/web/question-composer/ui.expected.md                | 2 +-
 snapshots/web/steering/mid-steer.expected.md                  | 2 +-
 10 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/apps/web/tests/built-boot.expected.e2e.ts b/apps/web/tests/built-boot.expected.e2e.ts
index d7292382df..e30ac22630 100644
--- a/apps/web/tests/built-boot.expected.e2e.ts
+++ b/apps/web/tests/built-boot.expected.e2e.ts
@@ -101,7 +101,7 @@ it('boots the built plugin graph and renders a fixture session end to end', asyn
   // Skip the resident fixture's three questions, then resolve its approval so
   // the ordinary composer bar (which owns ContextMeter) resumes.
   for (let index = 0; index < 3; index += 1) {
-    fireEvent.click(await screen.findByRole('button', { name: 'Skip this question' }))
+    fireEvent.click(await screen.findByRole('button', { name: 'Skip' }))
   }
   fireEvent.click(await screen.findByRole('button', { name: 'Allow once' }))
 
diff --git a/apps/web/tests/question-composer.e2e.ts b/apps/web/tests/question-composer.e2e.ts
index 45ba98f7ac..bd39a95bbd 100644
--- a/apps/web/tests/question-composer.e2e.ts
+++ b/apps/web/tests/question-composer.e2e.ts
@@ -345,7 +345,7 @@ describe('web e2e: resident question composer round trip', () => {
     expect(await capMetrics(field)).toEqual({ textLines: CAP_LINES, scrolls: true })
 
     // Settle the wait so teardown is not racing a pending question.
-    await composer.getByRole('button', { name: 'Skip this question' }).click()
+    await composer.getByRole('button', { name: 'Skip' }).click()
     expect(await asked).toEqual({ answers: [{ id: 'free', selected: [] }] })
     await expect.poll(() => page.locator('[data-question-key]').count(), { timeout: 10_000 }).toBe(0)
   }, 60_000)
diff --git a/packages/client/ui-user-questions/README.i18n.yaml b/packages/client/ui-user-questions/README.i18n.yaml
index 63bf522d57..753e95f5e6 100644
--- a/packages/client/ui-user-questions/README.i18n.yaml
+++ b/packages/client/ui-user-questions/README.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write packages/client/ui-user-questions/README.md
-README.md: 9e5997eb2ebe69b4b2d49b57a61b0bd36ec41053
-README.zh.md: 44a73607f95e7859b344034b5abaa2c386619083
+README.md: 5a31c688d7f7ea9a9ad10877628a333d797ac06d
+README.zh.md: 4db6cfa9fdead65c8e1c567981d0c16d92e9cb1e
diff --git a/packages/client/ui-user-questions/README.md b/packages/client/ui-user-questions/README.md
index 9e5997eb2e..5a31c688d7 100644
--- a/packages/client/ui-user-questions/README.md
+++ b/packages/client/ui-user-questions/README.md
@@ -29,7 +29,7 @@ When the agent asks a question, the composer becomes the question surface: answe
 
 ### Answering
 
-A multi-select draft keeps its selected labels while the user opens or edits the custom answer, so its submitted item may carry both `selected` and `custom`; a single-select custom answer remains exclusive. Question detail reuses the assistant-output `MarkdownText` primitive, including its GFM rendering and untrusted-content policy. The capped card keeps its title, navigation, and submission actions fixed while long detail and choices share an internal scroll region. "Skip this question" retains other drafts and emits the existing blank `{ selected: [] }` result for that item, while close rejects the whole wait as `ASK_CANCELLED`.
+A multi-select draft keeps its selected labels while the user opens or edits the custom answer, so its submitted item may carry both `selected` and `custom`; a single-select custom answer remains exclusive. Question detail reuses the assistant-output `MarkdownText` primitive, including its GFM rendering and untrusted-content policy. The capped card keeps its title, navigation, and submission actions fixed while long detail and choices share an internal scroll region. "Skip" retains other drafts and emits the existing blank `{ selected: [] }` result for that item, while close rejects the whole wait as `ASK_CANCELLED`.
 
 ### The plan-review card
 
diff --git a/packages/client/ui-user-questions/README.zh.md b/packages/client/ui-user-questions/README.zh.md
index 44a73607f9..4db6cfa9fd 100644
--- a/packages/client/ui-user-questions/README.zh.md
+++ b/packages/client/ui-user-questions/README.zh.md
@@ -29,7 +29,7 @@ kind: "package-reference"
 
 ### 作答
 
-用户打开或编辑自定义答案时，多选题草稿会保留已选中的标签，因此提交项可以同时携带 `selected` 与 `custom`；单选题的自定义答案仍保持互斥。问题详情复用助手输出的 `MarkdownText` 原语，包括其 GFM 渲染与不受信任内容策略。限高卡片保持标题、导航与提交动作固定，超长的详情与选项共享内部滚动区。「跳过此问题」会保留其他草稿，并为该项发出既有的空 `{ selected: [] }` 结果；关闭则以 `ASK_CANCELLED` 拒绝整个等待。
+用户打开或编辑自定义答案时，多选题草稿会保留已选中的标签，因此提交项可以同时携带 `selected` 与 `custom`；单选题的自定义答案仍保持互斥。问题详情复用助手输出的 `MarkdownText` 原语，包括其 GFM 渲染与不受信任内容策略。限高卡片保持标题、导航与提交动作固定，超长的详情与选项共享内部滚动区。「跳过」会保留其他草稿，并为该项发出既有的空 `{ selected: [] }` 结果；关闭则以 `ASK_CANCELLED` 拒绝整个等待。
 
 ### plan-review 卡片
 
diff --git a/packages/client/ui-user-questions/src/client/locales.ts b/packages/client/ui-user-questions/src/client/locales.ts
index 7d8f0c2531..e54243883b 100644
--- a/packages/client/ui-user-questions/src/client/locales.ts
+++ b/packages/client/ui-user-questions/src/client/locales.ts
@@ -33,7 +33,7 @@ export const en = {
   'nav.cancel': 'Dismiss all questions',
   'option.recommended': 'Recommended',
   'custom.placeholder': 'Type your answer',
-  'action.skip': 'Skip this question',
+  'action.skip': 'Skip',
   'action.next': 'Next',
   'plan.header': 'Plan review',
   'plan.approve': 'Approve',
diff --git a/packages/client/ui-user-questions/tests/user-questions-composer.client.spec.tsx b/packages/client/ui-user-questions/tests/user-questions-composer.client.spec.tsx
index 5bf5fb483c..41682b0c6c 100644
--- a/packages/client/ui-user-questions/tests/user-questions-composer.client.spec.tsx
+++ b/packages/client/ui-user-questions/tests/user-questions-composer.client.spec.tsx
@@ -387,7 +387,7 @@ describe('QuestionComposer', () => {
     const { carrier } = wait([{ id: 'detail', question: '补充你的要求' }])
     render(<QuestionComposer matched={carrier} {...kit} t={seatOver(en, commonEn)} />)
     expect(screen.getByLabelText('Dismiss all questions')).toBeTruthy()
-    expect(screen.getByRole('button', { name: 'Skip this question' })).toBeTruthy()
+    expect(screen.getByRole('button', { name: 'Skip' })).toBeTruthy()
     expect(screen.getByPlaceholderText('Type your answer')).toBeTruthy()
   })
 
diff --git a/snapshots/web/question-composer/composed.expected.md b/snapshots/web/question-composer/composed.expected.md
index 66f3706af5..a3e655e8b9 100644
--- a/snapshots/web/question-composer/composed.expected.md
+++ b/snapshots/web/question-composer/composed.expected.md
@@ -15,5 +15,5 @@
   - button "Next question" [disabled]:
     - img
   - status
-  - button "Skip this question"
+  - button "Skip"
   - button "Submit"
diff --git a/snapshots/web/question-composer/ui.expected.md b/snapshots/web/question-composer/ui.expected.md
index 1c7109702d..b86e6c0223 100644
--- a/snapshots/web/question-composer/ui.expected.md
+++ b/snapshots/web/question-composer/ui.expected.md
@@ -15,5 +15,5 @@
   - button "Next question" [disabled]:
     - img
   - status
-  - button "Skip this question"
+  - button "Skip"
   - button "Submit" [disabled]
diff --git a/snapshots/web/steering/mid-steer.expected.md b/snapshots/web/steering/mid-steer.expected.md
index 5d3e0929a4..16fec2b6ba 100644
--- a/snapshots/web/steering/mid-steer.expected.md
+++ b/snapshots/web/steering/mid-steer.expected.md
@@ -47,5 +47,5 @@
   - button "Next question" [disabled]:
     - img
   - status
-  - button "Skip this question"
+  - button "Skip"
   - button "Submit" [disabled]

From 7bce0c26f5a2c752c70cfa56a8625f74f63b6264 Mon Sep 17 00:00:00 2001
From: ZiyaZhang <199893125+ZiyaZhang@users.noreply.github.com>
Date: Thu, 10 Sep 2026 05:35:32 -0700
Subject: [PATCH 29/32] test(python): make stray fragment coverage
 deterministic

---
 ...10-hosted-image-test-assumptions.i18n.yaml |  4 +-
 ...026-09-10-hosted-image-test-assumptions.md |  6 ++
 ...-09-10-hosted-image-test-assumptions.zh.md |  6 ++
 .../code-runtime-python/tests/runtime.spec.ts | 71 ++++++++++---------
 4 files changed, 52 insertions(+), 35 deletions(-)

diff --git a/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.i18n.yaml b/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.i18n.yaml
index 52a4c5dd7f..8020a2be1a 100644
--- a/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.i18n.yaml
+++ b/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write .agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.md
-2026-09-10-hosted-image-test-assumptions.md: e6cd1ef37dce318920d75545f816006a98989076
-2026-09-10-hosted-image-test-assumptions.zh.md: e60910aebdc2952a2bfb6ab25963a973ea41ac87
+2026-09-10-hosted-image-test-assumptions.md: 0c894e89f910db9b952f79b985ef1c04e4963ef0
+2026-09-10-hosted-image-test-assumptions.zh.md: 3acd759b405109c82ef890f41ee90780b3d3080b
diff --git a/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.md b/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.md
index e6cd1ef37d..0c894e89f9 100644
--- a/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.md
+++ b/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.md
@@ -8,6 +8,8 @@ English | [中文](2026-09-10-hosted-image-test-assumptions.zh.md)
 
 The [failover leg](../process/2026-09-09-blacksmith-failover-leg.md) runs this suite on pools this repository does not own — Blacksmith's ephemeral images, and the in-house `vm-backup` and `dsh-win-ci` standbys. On the hosted image the coverage lanes failed on host properties their cases never named: whether the host offered a usable user-systemd scope decided which containment a mocked PTY exit raced; the wall-clock grace a managed scope needed before it could take a `SIGKILL` was below what a loaded image provides; a starved reader coalesced writes the illegal-UTF-8 residual cases assumed arrived as separate chunks; and a Windows Server image refuses `CoCreateInstance(CLSID_FileOpenDialog)` outright.
 
+The stray-fragment sealing case also assumed `os.sched_yield()` would produce at least 1024 stdout data events. In [run 34474886667](https://github.com/deepseek-harness/deepseek-harness/actions/runs/34474886667), its assertions passed without reaching the seal branch, so Linux coverage failed.
+
 ## Decision
 
 Every case names the host property it depends on, so the same revision reports the same verdict on the in-house pool and on a hosted image.
@@ -20,6 +22,8 @@ Terminal cases that drive a mocked PTY exit pin the containment they need (`inte
 
 Both illegal-UTF-8 residual cases in `packages/experimental/code-runtime-python/tests/runtime.spec.ts` pace their writes with `time.sleep(0.001)`: `os.sched_yield()` lets a loaded reader coalesce the writes into one chunk, and the coalesced chunk is what the wrapped `Buffer.concat` measures (the hosted image measured 2563 against the 2048 bound with a correct implementation). Their payloads stay above that bound — 3200 bytes for the `0xFF` case and 1100 `ED A0 80` sequences, 3300 raw bytes, for the CESU-8 case, past the 3072-byte budget a raw-byte undercount reaches — so the undercount still flushes above 2048. Each carries a 20s case budget for the paced writes plus the interpreter start.
 
+The stray-fragment case keeps the real CPython child but splits that child's stdout data events into single-byte buffers. This fixture controls the fragment count regardless of kernel coalescing and restores its opt-in flag and `Buffer.concat` wrapper in `finally`. It asserts the complete 60000-byte log, a maximum concat input count of 1024, and the existing 256 KiB copy budget. Removing the seal fails the input-count assertion; repeatedly merging the sealed prefix fails the copy budget.
+
 The Linux coverage lane grants `DSH_COVERAGE_TEST_TIMEOUT_MS: '90000'`, matching the Windows coverage lane, because the disposal cases in `subprocess-local` and `bash-sandbox` exceed the 5000ms default when the lane's partitions, workers, and sibling gates share one host.
 
 The Windows folder-dialog smoke probes `CoCreateInstance(CLSID_FileOpenDialog)` through PowerShell instead of gating on `process.platform`. An image that answers `CLASS_E_CLASSNOTAVAILABLE` (0x80040111) runs the clean-rejection case and skips the real-dialog case, so `win32-dialog.ts` keeps its file coverage without a host that can open a dialog. Every exception from that activation reads as refusal, so a host failing the probe for another reason only loses the real-dialog case; a probe that cannot run at all keeps the win32 assumption.
@@ -34,6 +38,8 @@ The Windows folder-dialog smoke probes `CoCreateInstance(CLSID_FileOpenDialog)`
 
 **Cutting the illegal-UTF-8 payloads to keep the cases fast.** Rejected: below the 2048 bound the assertion can no longer fail for the undercount it names, which leaves the regression unguarded.
 
+**Pacing the fragment-count case with sleeps.** Rejected: the operating system still owns pipe-read boundaries, so sleeps cannot guarantee the 1024 fragments this branch requires. Controlling the data-event boundary preserves the real subprocess and gives the branch a deterministic stimulus.
+
 ## Consequences
 
 The suite's verdict no longer depends on which pool served the lane, at the cost of fixtures pinned to one containment choice: the `linux-scope` and win32-job paths keep their own dedicated cases instead of being reached through these ones. The ACP dispose case costs about 10s of wall clock per run and each residual case about 3.5s, all deterministic rather than host-paced. Hosted-image evidence: [run 34449848541](https://github.com/deepseek-harness/deepseek-harness/actions/runs/34449848541) failed on these cases, [run 34457655892](https://github.com/deepseek-harness/deepseek-harness/actions/runs/34457655892) is green with this diff plus the 90000ms lane budget, and `windows node 24 / coverage` is green on five consecutive hosted runs, where the probe reports the refusal (`clsid-probe=refused`).
diff --git a/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.zh.md b/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.zh.md
index e60910aebd..3acd759b40 100644
--- a/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.zh.md
+++ b/.agents/notes/implemented/testing/2026-09-10-hosted-image-test-assumptions.zh.md
@@ -8,6 +8,8 @@ Status: implemented
 
 [故障切换支路](../process/2026-09-09-blacksmith-failover-leg.zh.md)会把这套测试跑在本仓库不拥有的池上——Blacksmith 的临时镜像，以及自有的 `vm-backup` 与 `dsh-win-ci` 备用池。在托管镜像上，coverage 各通道的失败来自用例从未点明的宿主属性：宿主是否提供可用的用户级 systemd scope，决定了被 mock 的 PTY 退出会与哪种 containment 竞争；托管 scope 接受 `SIGKILL` 之前所需的墙钟宽限，低于负载镜像实际提供的量；读端被抢占时会把非法 UTF-8 残余用例假定为独立分块的写入合并成一个分块；以及 Windows Server 镜像直接拒绝 `CoCreateInstance(CLSID_FileOpenDialog)`。
 
+杂散输出的分片封块用例还假定 `os.sched_yield()` 会产生至少 1024 次 stdout data 事件。在 [run 34474886667](https://github.com/deepseek-harness/deepseek-harness/actions/runs/34474886667) 中，该用例的断言全部通过，却未进入封块分支，导致 Linux coverage 失败。
+
 ## 决策
 
 每个用例都点明它依赖的宿主属性，因此同一份修订在自有池与托管镜像上给出同样的结论。
@@ -20,6 +22,8 @@ Status: implemented
 
 `packages/experimental/code-runtime-python/tests/runtime.spec.ts` 的两个非法 UTF-8 残余用例都用 `time.sleep(0.001)` 控制写入节奏：`os.sched_yield()` 会让被抢占的读端把多次写入合并成一个分块，而被包裹的 `Buffer.concat` 测量的正是该分块（在正确实现下，托管镜像测得 2563，超过了 2048 的界）。两个用例的载荷都保持在该界之上——`0xFF` 用例 3200 字节，CESU-8 用例 1100 个 `ED A0 80` 序列（3300 原始字节，超过按原始字节计费会触及的 3072 字节预算）——因此少计仍然会在 2048 之上触发 flush。两者各自带有 20s 的用例预算，容纳带节奏的写入与解释器启动。
 
+分片封块用例保留真实的 CPython 子进程，但将该子进程的 stdout data 事件拆成单字节缓冲区。这个 fixture 控制分片数量，不再取决于内核是否合并写入，并在 `finally` 中恢复启用标志与 `Buffer.concat` 包装。它断言完整的 60000 字节日志、最大 concat 输入数量为 1024，以及原有的 256 KiB 复制预算。移除封块会触发输入数量断言；反复合并已封块的前缀会超出复制预算。
+
 Linux coverage 通道授予 `DSH_COVERAGE_TEST_TIMEOUT_MS: '90000'`，与 Windows coverage 通道一致，因为当该通道的分区、worker 与同级门禁共用一个宿主时，`subprocess-local` 与 `bash-sandbox` 的处置用例会超过 5000ms 默认值。
 
 Windows 文件夹对话框冒烟测试改为通过 PowerShell 探测 `CoCreateInstance(CLSID_FileOpenDialog)`，而不再按 `process.platform` 分流。回答 `CLASS_E_CLASSNOTAVAILABLE`（0x80040111）的镜像会跑干净的拒绝用例并跳过真实对话框用例，因此 `win32-dialog.ts` 在没有可开对话框的宿主上仍保有文件覆盖率。该激活过程抛出的任何异常都按拒绝解读，因此因其它原因探测失败的宿主只会失去真实对话框用例；完全无法运行的探测则保留 win32 假设。
@@ -34,6 +38,8 @@ Windows 文件夹对话框冒烟测试改为通过 PowerShell 探测 `CoCreateIn
 
 **削减非法 UTF-8 的载荷以让用例更快。** 否决：低于 2048 的界之后，断言再也无法为它所点名的少计而失败，等于让该回归失去守护。
 
+**用 sleep 控制分片数量用例的写入节奏。** 否决：管道读取的边界仍由操作系统决定，因此 sleep 无法保证该分支需要的 1024 个分片。控制 data 事件边界可以保留真实子进程，并确定性地触发该分支。
+
 ## 后果
 
 套件的结论不再取决于哪个池服务了这条通道，代价是被钉在某一 containment 选择上的 fixture：`linux-scope` 与 win32-job 两条路径仍由各自的专用用例覆盖，而不是经由这些用例抵达。ACP 处置用例每次运行约 10s 墙钟，每个残余用例约 3.5s，且都是确定成本而非随宿主浮动。托管镜像证据：[run 34449848541](https://github.com/deepseek-harness/deepseek-harness/actions/runs/34449848541) 在这些用例上失败，[run 34457655892](https://github.com/deepseek-harness/deepseek-harness/actions/runs/34457655892) 在本改动加 90000ms 通道预算下转绿，`windows node 24 / coverage` 在连续五次托管运行中为绿，其中探针报告拒绝（`clsid-probe=refused`）。
diff --git a/packages/experimental/code-runtime-python/tests/runtime.spec.ts b/packages/experimental/code-runtime-python/tests/runtime.spec.ts
index b89ec692b0..826524adc5 100644
--- a/packages/experimental/code-runtime-python/tests/runtime.spec.ts
+++ b/packages/experimental/code-runtime-python/tests/runtime.spec.ts
@@ -28,7 +28,7 @@ import type { CodeBindingFunction, CodeJsonValue, CodeRunResult } from '@deepsee
  * records the same race and solves it with argv-based identity; recording the
  * mkdtempSync results is the fs-mock equivalent.
  */
-const { failNextCopyOf, stagedDirs, tempDirs, tempFiles } = vi.hoisted(() => ({
+const { failNextCopyOf, stagedDirs, tempDirs, tempFiles, splitStdout } = vi.hoisted(() => ({
   failNextCopyOf: { value: undefined as string | undefined },
   stagedDirs: [] as string[],
   // Test-created temp dirs/files, registered by the helpers below and removed
@@ -38,7 +38,28 @@ const { failNextCopyOf, stagedDirs, tempDirs, tempFiles } = vi.hoisted(() => ({
   // tests themselves build).
   tempDirs: [] as string[],
   tempFiles: [] as string[],
+  splitStdout: { value: false },
 }))
+vi.mock('node:child_process', async (importOriginal) => {
+  const actual = await importOriginal<typeof import('node:child_process')>()
+  return {
+    ...actual,
+    spawn(...args: Parameters<typeof actual.spawn>) {
+      const child = actual.spawn(...args)
+      if (splitStdout.value && child.stdout !== null) {
+        // The kernel may coalesce writes; this case owns the data-event boundaries.
+        const emit = child.stdout.emit.bind(child.stdout)
+        child.stdout.emit = (event: string | symbol, ...values: unknown[]): boolean => {
+          const chunk = values[0]
+          if (event !== 'data' || !Buffer.isBuffer(chunk)) return emit(event, ...values)
+          for (let index = 0; index < chunk.length; index += 1) emit('data', chunk.subarray(index, index + 1))
+          return true
+        }
+      }
+      return child
+    },
+  }
+})
 vi.mock('node:fs', async (importOriginal) => {
   const actual = await importOriginal<typeof import('node:fs')>()
   return {
@@ -59,10 +80,9 @@ vi.mock('node:fs', async (importOriginal) => {
 })
 
 /**
- * Integration suite over REAL python3 subprocesses (no subprocess mocks — it is
- * cheap and local, per docs/testing.md's real-over-mock policy; the only mock is
- * `node:fs.copyFileSync` for the staging-failure cases). Each test builds a fresh
- * runtime so budgets can be tuned per case.
+ * Integration suite over real python3 subprocesses. The staging-failure cases
+ * mock `copyFileSync`; the fragment-count case controls stdout data-event boundaries.
+ * Each test builds a fresh runtime so budgets can be tuned per case.
  */
 async function setup(config: Config = {}) {
   const ctx = new Context()
@@ -93,6 +113,7 @@ function makeTempDirSync(prefix: string): string {
 // Remove every fixture this file created, so repeated runs do not accumulate
 // `dsh-*` directories and wrappers in the shared tmpdir.
 afterEach(() => {
+  splitStdout.value = false
   for (const dir of tempDirs.splice(0)) rmSync(dir, { recursive: true, force: true })
   for (const file of tempFiles.splice(0)) rmSync(file, { force: true })
 })
@@ -4760,54 +4781,38 @@ describe('PythonCodeRuntime — hostile peer', () => {
   }, 40_000)
 
   it('seals trickled stray fragments into blocks without recopying the sealed prefix', async () => {
-    // The stray-capture buffer has the same object-overhead exposure as the fd-3
-    // reader above: each newline-free `data` chunk is its own Buffer, so a
-    // program pacing single-byte `os.write(1, ...)` accumulates one object per
-    // write, which the serialized-cost counter cannot see. Past MAX_PENDING_CHUNKS
-    // the fragments seal into a finished block; re-merging the whole residual at
-    // each threshold instead would copy the sealed prefix again and again, making
-    // the cumulative copy volume quadratic. `Buffer.concat` is wrapped to measure
-    // that volume — both shapes admit the same final log entry, so the copy total
-    // is the discriminator. maxLogBytes is raised so the trickle is retained,
-    // not truncated, which is what forces the fragments to accumulate and seal.
-    const realConcat = Buffer.concat.bind(Buffer)
+    // One-byte data events force the fragment-count limit independently of pipe
+    // coalescing. The input-list bound rejects missing seals; copied bytes reject
+    // repeatedly merging the sealed prefix. Both regressions preserve log text.
+    const realConcat = Buffer.concat
+    const previousSplitStdout = splitStdout.value
     let copied = 0
+    let maxParts = 0
     Buffer.concat = (list: readonly Uint8Array[], total?: number): Buffer<ArrayBuffer> => {
       for (const part of list) copied += part.length
+      maxParts = Math.max(maxParts, list.length)
       return realConcat(list, total)
     }
     let result: CodeRunResult
     try {
+      splitStdout.value = true
       const { runtime } = await setup({ maxLogBytes: 200_000, maxWallMs: 30_000 })
       result = await runtime.run({
         program: [
           'import os',
-          'for _ in range(60000):',
-          '    os.write(1, b"x")',
-          '    os.sched_yield()',
-          'os.write(1, b"\\n")',
+          'os.write(1, b"x" * 60000 + b"\\n")',
           'return "done"',
         ].join('\n'),
         bindings: [],
       })
     } finally {
       Buffer.concat = realConcat
+      splitStdout.value = previousSplitStdout
     }
     expect(result.error).toBeUndefined()
     expect(result.value).toBe('done')
-    // The trickle coalesces into one log line (no interior newlines). Its exact
-    // length depends on pipe coalescing, but it is one entry and non-empty.
-    expect(result.logs.length).toBe(1)
-    expect((result.logs[0] as string).length).toBeGreaterThan(0)
-    // Sealing appends a finished block rather than re-merging everything held, so
-    // each byte is copied a bounded number of times. Re-merging the whole
-    // residual at every seal threshold instead makes the cumulative copy volume
-    // quadratic. Measured like the fd-3 sibling above rather than reasoned about:
-    // this sealed shape copies about 120 KB for 60000 trickled bytes, the
-    // re-merging shape about 538 KB (the stray path adds one whole-residual
-    // concat at the terminating newline over the fd-3 sibling's 119/540, landing
-    // at the same order). 256 KiB sits between them with margin on both sides, so
-    // reverting the seal to a re-merge turns this assertion red.
+    expect(result.logs).toEqual(['x'.repeat(60000)])
+    expect(maxParts).toBe(1024)
     expect(copied).toBeLessThan(256 * 1024)
   }, 40_000)
 

From 884485e7e6edec1a3633bef0a2ce2abd8cedfa09 Mon Sep 17 00:00:00 2001
From: ZiyaZhang <199893125+ZiyaZhang@users.noreply.github.com>
Date: Thu, 10 Sep 2026 05:40:50 -0700
Subject: [PATCH 30/32] test(python): restore concat through its spy

---
 .../code-runtime-python/tests/runtime.spec.ts             | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/packages/experimental/code-runtime-python/tests/runtime.spec.ts b/packages/experimental/code-runtime-python/tests/runtime.spec.ts
index 826524adc5..6c028cdeb5 100644
--- a/packages/experimental/code-runtime-python/tests/runtime.spec.ts
+++ b/packages/experimental/code-runtime-python/tests/runtime.spec.ts
@@ -4784,15 +4784,15 @@ describe('PythonCodeRuntime — hostile peer', () => {
     // One-byte data events force the fragment-count limit independently of pipe
     // coalescing. The input-list bound rejects missing seals; copied bytes reject
     // repeatedly merging the sealed prefix. Both regressions preserve log text.
-    const realConcat = Buffer.concat
+    const realConcat = Buffer.concat.bind(Buffer)
     const previousSplitStdout = splitStdout.value
     let copied = 0
     let maxParts = 0
-    Buffer.concat = (list: readonly Uint8Array[], total?: number): Buffer<ArrayBuffer> => {
+    const concatSpy = vi.spyOn(Buffer, 'concat').mockImplementation((list: readonly Uint8Array[], total?: number): Buffer<ArrayBuffer> => {
       for (const part of list) copied += part.length
       maxParts = Math.max(maxParts, list.length)
       return realConcat(list, total)
-    }
+    })
     let result: CodeRunResult
     try {
       splitStdout.value = true
@@ -4806,7 +4806,7 @@ describe('PythonCodeRuntime — hostile peer', () => {
         bindings: [],
       })
     } finally {
-      Buffer.concat = realConcat
+      concatSpy.mockRestore()
       splitStdout.value = previousSplitStdout
     }
     expect(result.error).toBeUndefined()

From 060323d8e2f355022cfa9dbdb9226a421a7b7638 Mon Sep 17 00:00:00 2001
From: yixiangihsiang <ihsiang@deepseek.com>
Date: Thu, 10 Sep 2026 20:32:14 +0800
Subject: [PATCH 31/32] feat(web): backport feedback and file refinements to
 0.1.5

Backport the selected changes from PR #3928 and PR #3902 onto dsh-v0.1.5-rc.1, retaining baseline session recordings and excluding newer master commits.

Refs #3927
Refs #3903

Co-authored-by: LegGasai <jyc132780208@sina.com>
---
 ...8-feedback-dialog-and-categories.i18n.yaml |   4 +-
 ...26-09-08-feedback-dialog-and-categories.md |   8 +-
 ...09-08-feedback-dialog-and-categories.zh.md |   8 +-
 ...026-09-08-shared-file-type-icons.i18n.yaml |   4 +-
 .../2026-09-08-shared-file-type-icons.md      |   7 +-
 .../2026-09-08-shared-file-type-icons.zh.md   |   7 +-
 ...tric-message-feedback-submission.i18n.yaml |   6 +
 ...0-symmetric-message-feedback-submission.md |  25 +
 ...ymmetric-message-feedback-submission.zh.md |  25 +
 apps/web/tests/feedback-release.e2e.ts        |  13 +-
 apps/web/tests/message-feedback.e2e.ts        |  39 +-
 apps/web/tests/present.e2e.ts                 |  67 +++
 apps/web/tests/produced-files.e2e.ts          |  31 ++
 docs/subsystems/feedback.i18n.yaml            |   4 +-
 docs/subsystems/feedback.md                   |   6 +-
 docs/subsystems/feedback.zh.md                |   6 +-
 packages/client/README.i18n.yaml              |   4 +-
 packages/client/README.md                     |   2 +-
 packages/client/README.zh.md                  |   2 +-
 packages/client/ui-chat/README.i18n.yaml      |   4 +-
 packages/client/ui-chat/README.md             |   6 +
 packages/client/ui-chat/README.zh.md          |   6 +
 .../client/chat/TurnTailNodeView.module.css   |   3 +
 .../tests/turn-tail-spacing.client.spec.ts    |  16 +
 .../client/ui-deliverables/README.i18n.yaml   |   4 +-
 packages/client/ui-deliverables/README.md     |   4 +-
 packages/client/ui-deliverables/README.zh.md  |   4 +-
 .../src/client/Deliverables.module.css        |  21 +-
 .../src/client/Deliverables.tsx               |   5 +-
 .../src/client/PresentedFileCard.tsx          |   2 +-
 .../src/client/ProducedFiles.module.css       |   2 +-
 .../tests/produced-files.client.spec.tsx      |  13 +-
 .../tests/turn-tail-spacing.client.spec.ts    |  24 +
 .../ui-message-feedback/README.i18n.yaml      |   4 +-
 packages/client/ui-message-feedback/README.md |  11 +-
 .../client/ui-message-feedback/README.zh.md   |  11 +-
 .../client/ui-message-feedback/package.json   |   2 +-
 .../src/client/FeedbackDialog.module.css      |   8 -
 .../src/client/FeedbackDialog.tsx             |  29 +-
 .../src/client/MessageFeedbackActions.tsx     |  46 +-
 .../src/client/controller.ts                  |  26 +-
 .../ui-message-feedback/src/client/dialog.ts  |  25 +-
 .../ui-message-feedback/src/client/index.ts   |  10 +-
 .../ui-message-feedback/src/client/locales.ts |   4 +-
 .../ui-message-feedback/src/client/slots.ts   |  22 +-
 .../ui-message-feedback/src/client/surface.ts |   6 +-
 .../tests/browser-plugin.client.spec.tsx      |  38 +-
 .../tests/controller.client.spec.ts           |  44 +-
 .../tests/dialog.client.spec.ts               |  40 +-
 .../tests/feedback-dialog.client.spec.tsx     |  34 +-
 .../message-feedback-actions.client.spec.tsx  | 109 ++--
 .../client/ui-primitives/README.i18n.yaml     |   4 +-
 packages/client/ui-primitives/README.md       |   4 +-
 packages/client/ui-primitives/README.zh.md    |   4 +-
 .../client/ui-primitives/src/CodeFileIcon.tsx | 491 +-----------------
 .../src/code-file-icon-artwork.manifest.json  |  71 +++
 .../src/code-file-icon-artwork.ts             |  60 +++
 .../tests/code-file-icon.client.spec.tsx      |  57 +-
 .../command-feedback/README.i18n.yaml         |   4 +-
 packages/feedback/command-feedback/README.md  |   2 +-
 .../feedback/command-feedback/README.zh.md    |   2 +-
 .../feedback/message-feedback/src/types.ts    |   2 +-
 .../feedback-release.expected.json            |   4 +-
 63 files changed, 778 insertions(+), 778 deletions(-)
 create mode 100644 .agents/notes/implemented/feature/2026-09-10-symmetric-message-feedback-submission.i18n.yaml
 create mode 100644 .agents/notes/implemented/feature/2026-09-10-symmetric-message-feedback-submission.md
 create mode 100644 .agents/notes/implemented/feature/2026-09-10-symmetric-message-feedback-submission.zh.md
 create mode 100644 packages/client/ui-chat/tests/turn-tail-spacing.client.spec.ts
 create mode 100644 packages/client/ui-deliverables/tests/turn-tail-spacing.client.spec.ts
 create mode 100644 packages/client/ui-primitives/src/code-file-icon-artwork.manifest.json
 create mode 100644 packages/client/ui-primitives/src/code-file-icon-artwork.ts

diff --git a/.agents/notes/implemented/feature/2026-09-08-feedback-dialog-and-categories.i18n.yaml b/.agents/notes/implemented/feature/2026-09-08-feedback-dialog-and-categories.i18n.yaml
index 3d3ce530c3..16c17f3405 100644
--- a/.agents/notes/implemented/feature/2026-09-08-feedback-dialog-and-categories.i18n.yaml
+++ b/.agents/notes/implemented/feature/2026-09-08-feedback-dialog-and-categories.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write .agents/notes/implemented/feature/2026-09-08-feedback-dialog-and-categories.md
-2026-09-08-feedback-dialog-and-categories.md: 02a41f08541cca85dad7cd3c2c984b5e7cd8fd6d
-2026-09-08-feedback-dialog-and-categories.zh.md: 40d83360e52bff569120820b78959a7cc3f4db4f
+2026-09-08-feedback-dialog-and-categories.md: ee656946a9e5d2921a02a1b642041e5965661f31
+2026-09-08-feedback-dialog-and-categories.zh.md: ef2b2d4670aad12398125925dd1e1a7e7c10a5f0
diff --git a/.agents/notes/implemented/feature/2026-09-08-feedback-dialog-and-categories.md b/.agents/notes/implemented/feature/2026-09-08-feedback-dialog-and-categories.md
index 02a41f0854..ee656946a9 100644
--- a/.agents/notes/implemented/feature/2026-09-08-feedback-dialog-and-categories.md
+++ b/.agents/notes/implemented/feature/2026-09-08-feedback-dialog-and-categories.md
@@ -12,9 +12,9 @@ The Web client had two disconnected feedback paths with no visible outcome. `/fe
 
 `command-feedback` owns the category taxonomy as the `FeedbackCategory` union and the `FEEDBACK_CATEGORIES` tuple in its client-safe `./types` export, and `feedback/record` becomes `{ text?, category? }`: blank text is recorded as absent, and an entry with neither member still records, because the log delivery that the feedback authorizes is the content. The same package publishes the `sessionFeedback.record` Remote through `TypertRemoteService`, resolving the live Session by id and calling the existing `recordFeedback` producer, so the dialog records the same event as the command without command bookkeeping. `message-feedback` adds the optional `category` to `MessageFeedbackItem` and `MessageFeedbackPutRequest`, validates stored values against the tuple, and counts a category change as a material edit.
 
-`ui-message-feedback` becomes the Web feedback surface. A per-session `FeedbackSurface` owns the message-feedback controller, a `FeedbackDialogController` for the draft, the submission, and the toast sequence, and the routing between them: a message target puts a negative judgment with the dialog's category and note through the message controller, the Session target records through `ctx.remote.sessionFeedback`. A `FeedbackDialog` entry of `conversation.input.overlay` renders the Modal and Toast primitives from the dialog store. A decoration on the Host's `feedback` command opens the dialog for the Session from a menu pick or a bare Enter while `/feedback <text>` still reaches the Host; it uses the `action` kind this PR adds to `CommandUiSpec`, a bare invocation that consumes the trigger token and runs a client callback without submitting anything. Dislike opens the same dialog for the message. Like calls `toggle`, which now reports the rating it committed, so the row acknowledges a recorded Like and stays silent on a retraction. The note popover, `clearNote`, and `clear` are removed: the dialog is the only note editor, a rating switch stores the bare judgment, and clicking a recorded rating retracts it.
+`ui-message-feedback` becomes the Web feedback surface. A per-session `FeedbackSurface` owns the message-feedback controller, a `FeedbackDialogController` for the draft, the submission, and the toast sequence, and the routing between them: a message target puts its selected judgment with the dialog's category and note through the message controller, while the Session target records through `ctx.remote.sessionFeedback`. A `FeedbackDialog` entry of `conversation.input.overlay` renders the Modal and Toast primitives from the dialog store. A decoration on the Host's `feedback` command opens the dialog for the Session from a menu pick or a bare Enter while `/feedback <text>` still reaches the Host; it uses the `action` kind in `CommandUiSpec`, which consumes the trigger token and runs a client callback without submitting anything. The later [symmetric message feedback submission](2026-09-10-symmetric-message-feedback-submission.md) decision owns the rating entry rule: either unrecorded rating opens the dialog, while clicking the recorded rating retracts it. The note popover, `clearNote`, and `clear` remain absent because the dialog is the only note editor.
 
-The dialog is the shared Modal card at the design's width; the design's checkbox for including the conversation log is not built, because the log travels with every feedback event and is not optional. An oversized description still fails on submit with `note-too-large`; the dialog stays open with the code.
+The dialog is the shared Modal card at the design's width; the design's checkbox for including the conversation log is not built, because the log travels with every feedback event and is not optional. An oversized description still fails on submit with `note-too-large`; the dialog stays open with its draft and a warning toast presents the localized failure.
 
 ## Alternatives considered
 
@@ -24,9 +24,9 @@ The dialog is the shared Modal card at the design's width; the design's checkbox
 
 **Keep the note popover beside the dialog.** Two editors for one note with different reachability would leave the row two-line at some widths, the defect the popover was introduced to avoid, and the design shows only the thumbs.
 
-**A Toast per message control.** The composer overlay already mounts once per Session, and the dialog owns the toast sequence, so one owner serves the Like path and the dialog path alike.
+**A Toast per message control.** The composer overlay already mounts once per Session, and the dialog owns the toast sequence, so one owner serves both message-rating paths and the Session dialog.
 
-**A dialog kind in `CommandUiSpec`.** An action that consumes the token and runs a client callback is all the dialog needs; PR #3745 introduces the same `action` kind for its File row, so whichever lands second keeps one definition.
+**A dialog kind in `CommandUiSpec`.** An action that consumes the token and runs a client callback is all the dialog needs; the File row uses the same `action` kind, so one definition serves both entries.
 
 ## Consequences
 
diff --git a/.agents/notes/implemented/feature/2026-09-08-feedback-dialog-and-categories.zh.md b/.agents/notes/implemented/feature/2026-09-08-feedback-dialog-and-categories.zh.md
index 40d83360e5..ef2b2d4670 100644
--- a/.agents/notes/implemented/feature/2026-09-08-feedback-dialog-and-categories.zh.md
+++ b/.agents/notes/implemented/feature/2026-09-08-feedback-dialog-and-categories.zh.md
@@ -12,9 +12,9 @@ Web 客户端有两条互不相连的反馈路径，且都没有可见结果。`
 
 `command-feedback` 在其客户端可用的 `./types` 导出中以 `FeedbackCategory` 联合类型与 `FEEDBACK_CATEGORIES` 元组拥有分类表，`feedback/record` 变为 `{ text?, category? }`：空白文本记为缺省，两个成员都没有的条目仍会记录，因为反馈所授权的日志投递本身就是内容。同一个包通过 `TypertRemoteService` 发布 `sessionFeedback.record` Remote，按 id 找到 live Session 后调用已有的 `recordFeedback` 生产方，因此弹窗记录的是与命令相同的事件，只是没有命令簿记。`message-feedback` 给 `MessageFeedbackItem` 与 `MessageFeedbackPutRequest` 加上可选 `category`，按元组校验已存值，并把分类变化算作实质编辑。
 
-`ui-message-feedback` 成为 Web 反馈界面。每个 Session 一个 `FeedbackSurface`，拥有消息反馈控制器、负责草稿、提交与 toast 序号的 `FeedbackDialogController`，以及两者之间的路由：消息目标经消息控制器 put 一条带弹窗分类与备注的差评，Session 目标经 `ctx.remote.sessionFeedback` 记录。`conversation.input.overlay` 的 `FeedbackDialog` 条目从弹窗 store 渲染 Modal 与 Toast 基元。宿主 `feedback` 命令上的装饰让菜单选中或不带参数的回车为 Session 打开弹窗，而 `/feedback <text>` 仍到达宿主；它使用本 PR 给 `CommandUiSpec` 新增的 `action` 种类：裸调用消费触发 token 后运行一个客户端回调，不提交任何内容。点踩为消息打开同一个弹窗。点赞调用 `toggle`，它现在会报告自己提交的评分，因此该行只对记录成功的点赞做确认，撤回时保持沉默。备注浮层、`clearNote` 与 `clear` 被移除：弹窗是唯一的备注编辑器，切换评分只存判断本身，再次点击已记录的评分即撤回。
+`ui-message-feedback` 成为 Web 反馈界面。每个 Session 一个 `FeedbackSurface`，拥有消息反馈控制器、负责草稿、提交与 toast 序号的 `FeedbackDialogController`，以及两者之间的路由：消息目标经消息控制器 put 一条带弹窗分类与备注的所选评分，Session 目标经 `ctx.remote.sessionFeedback` 记录。`conversation.input.overlay` 的 `FeedbackDialog` 条目从弹窗 store 渲染 Modal 与 Toast 基元。宿主 `feedback` 命令上的装饰让菜单选中或不带参数的回车为 Session 打开弹窗，而 `/feedback <text>` 仍到达宿主；它使用 `CommandUiSpec` 中的 `action` 种类：裸调用消费触发 token 后运行一个客户端回调，不提交任何内容。后续的[对称消息反馈提交](2026-09-10-symmetric-message-feedback-submission.zh.md)决策拥有评分入口规则：任一未记录的评分都会打开弹窗，再次点击已记录的评分则撤回。备注浮层、`clearNote` 与 `clear` 继续保持移除，因为弹窗是唯一的备注编辑器。
 
-弹窗是共用的 Modal 卡片，宽度按设计稿；设计稿里「包括当前对话的日志」复选框不做，因为日志随每个反馈事件一起投递，不是可选项。超长描述仍在提交时以 `note-too-large` 失败；弹窗带着失败码保持打开。
+弹窗是共用的 Modal 卡片，宽度按设计稿；设计稿里「包括当前对话的日志」复选框不做，因为日志随每个反馈事件一起投递，不是可选项。超长描述仍在提交时以 `note-too-large` 失败；弹窗保留草稿并通过警告 toast 展示本地化错误。
 
 ## 考虑过的替代方案
 
@@ -24,9 +24,9 @@ Web 客户端有两条互不相连的反馈路径，且都没有可见结果。`
 
 **在弹窗之外保留备注浮层。** 同一条备注有两个可达性不同的编辑器，会让该行在某些宽度下变成两行，正是当初引入浮层要避免的缺陷，而且设计稿只有两个拇指。
 
-**每个消息控件各自一个 Toast。** 输入框浮层已经按 Session 挂载一次，弹窗又拥有 toast 序号，因此一个持有者同时服务点赞路径与弹窗路径。
+**每个消息控件各自一个 Toast。** 输入框浮层已经按 Session 挂载一次，弹窗又拥有 toast 序号，因此一个持有者同时服务两种消息评分路径与 Session 弹窗。
 
-**在 `CommandUiSpec` 里新增 dialog 种类。** 一个消费 token 后运行客户端回调的 action 已经够用；PR #3745 为它的「文件」行引入了同一个 `action` 种类，后合并的一方保留一份定义即可。
+**在 `CommandUiSpec` 里新增 dialog 种类。** 一个消费 token 后运行客户端回调的 action 已经够用；「文件」行使用同一个 `action` 种类，一份定义即可服务两个条目。
 
 ## 后果
 
diff --git a/.agents/notes/implemented/feature/2026-09-08-shared-file-type-icons.i18n.yaml b/.agents/notes/implemented/feature/2026-09-08-shared-file-type-icons.i18n.yaml
index bf23295de5..bf3876efca 100644
--- a/.agents/notes/implemented/feature/2026-09-08-shared-file-type-icons.i18n.yaml
+++ b/.agents/notes/implemented/feature/2026-09-08-shared-file-type-icons.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write .agents/notes/implemented/feature/2026-09-08-shared-file-type-icons.md
-2026-09-08-shared-file-type-icons.md: f8c87cb3259f757483a6658d79306d3f02d90488
-2026-09-08-shared-file-type-icons.zh.md: ea115cd63b3144ded2c99f818bb9364eea8adfef
+2026-09-08-shared-file-type-icons.md: 1e3fe7267961a8525bbcdf946eacaa933bcf3e4f
+2026-09-08-shared-file-type-icons.zh.md: fd1f38ebb33f80c73d17cc48f6f9640c309f97f2
diff --git a/.agents/notes/implemented/feature/2026-09-08-shared-file-type-icons.md b/.agents/notes/implemented/feature/2026-09-08-shared-file-type-icons.md
index f8c87cb325..1e3fe72679 100644
--- a/.agents/notes/implemented/feature/2026-09-08-shared-file-type-icons.md
+++ b/.agents/notes/implemented/feature/2026-09-08-shared-file-type-icons.md
@@ -14,11 +14,11 @@ Client feature plugins can share React components only through `@deepseek-ai/dsh
 
 `FileTypeIcon` accepts a path, shared `IconProps`, the explicit `kind`, and an optional project-file snapshot. Traditional file types render the supplied 28px document and folder contours as inline SVG. Excel, Markdown, PDF, PPT, and Word foreground marks scale to 122% around their visual center; the remaining marked traditional glyphs use 112%, while the file body and folded corner retain their source geometry and the generic file has no invented center mark. The sheet is a solid category color, the foreground mark and ordinary folded corner are white, and the generic file has a darker grey corner. CSS assigns the supplied category palette through static design tokens: DeepSeek blue for code/HTML/Markdown, the lighter DeepSeek blue for Word, green for Excel, two amber steps for folder/PPT, red for PDF, and neutral grey for unknown files. Image and video share the supplied violet through a component-local variable because the design platform has no matching violet token. A caller may override a traditional sheet through `--dsh-file-type-icon-color`.
 
-Recognized code and configuration files render the corresponding 20px square artwork scaled to the requested icon size. These technology marks retain their embedded multicolor fills and are the explicit exception to the ordinary current-color icon rule. The map selects React before TypeScript/JavaScript, Angular filename suffixes before their base extension, Docker/Node/Git/Make/CMake by filename rules, and Flutter only when the optional project snapshot contains a `pubspec.yaml` whose text includes `flutter:`. Markdown and SVG remain owned by the traditional Markdown and image categories. CSV and TSV use the code glyph in file cards, rows, and preview titles; their clickable links also use code. Both `.env` and names ending in `.env` use the environment glyph. Every traditional and technology SVG is `aria-hidden`, and the card, row, or button that owns the file identity supplies the accessible name.
+Recognized code and configuration files render the corresponding 20px square artwork scaled to the requested icon size. The embedded static table contains exactly the 48 established `CodeFileType` entries; archive-only artwork does not add a category, and an adjacent manifest records the responsible design owner and source digests. Tests reject scripts, event attributes, external references, and duplicate ids in that table. `CodeFileIcon` replaces local SVG ids with a per-component prefix before insertion so repeated gradients and clip paths remain independent. These technology marks retain their embedded multicolor fills and are the explicit exception to the ordinary current-color icon rule. The map selects React before TypeScript/JavaScript, Angular filename suffixes before their base extension, Docker/Node/Git/Make/CMake by filename rules, and Flutter only when the optional project snapshot contains a `pubspec.yaml` whose text includes `flutter:`. Markdown and SVG remain owned by the traditional Markdown and image categories. CSV and TSV use the code glyph in file cards, rows, and preview titles; their clickable links also use code. Both `.env` and names ending in `.env` use the environment glyph. Every traditional and technology SVG is `aria-hidden`, and the card, row, or button that owns the file identity supplies the accessible name.
 
 `LinkIcon` delegates extension classification to `classifyFileType` and folds the detailed result into its existing link vocabulary: code and HTML use `code`, images use `image`, PDF/Word/Excel/PPT use `document`, and Markdown/video/unknown files use `other`. Extensionless names remain `other` in link contexts, so the 14px clickable-link appearance defined by the [clickable-link decision](2026-09-04-web-clickable-link-styles.md) does not change.
 
-Attachment upload cards, sent-message file cards, queued-file rows, and workspace file rows render `FileTypeIcon`. The Files tab title renders its explicit `folder` kind at 16px. Explicit delivery cards also use `FileTypeIcon` at 28px and `fileExtension` for their fallback metadata. The two metadata rows use `fileExtension` rather than local parsers; a leading-dot basename such as `.env` therefore displays `ENV`, while an absent or trailing suffix displays no extension label. Image content continues to render as a preview rather than a file-type glyph, and produced-file links and Markdown file mentions continue to use `LinkIcon` because they are link surfaces.
+Attachment upload cards, sent-message file cards, queued-file rows, and workspace file rows render `FileTypeIcon`. The Files tab title renders its explicit `folder` kind at 16px. Explicit delivery cards use `FileTypeIcon` at 20px and `fileExtension` for their fallback metadata. The two metadata rows use `fileExtension` rather than local parsers; a leading-dot basename such as `.env` therefore displays `ENV`, while an absent or trailing suffix displays no extension label. Image content continues to render as a preview rather than a file-type glyph, and produced-file links and Markdown file mentions continue to use `LinkIcon` because they are link surfaces.
 
 ## Alternatives considered
 
@@ -32,12 +32,13 @@ Attachment upload cards, sent-message file cards, queued-file rows, and workspac
 
 ## Testing
 
-The `ui-primitives` specs cover case-insensitive suffixes, both path separators, leading-dot files, missing and trailing suffixes, common named files, unknown fallback, all detailed code mappings, rule priority, Flutter context, every supplied technology SVG, instance-safe gradient ids, `aria-hidden`, sizing/class forwarding, distinct artwork, the 112% and 122% foreground-mark transforms, and the traditional solid-sheet/contrast-mark layers without literal SVG colors. A stylesheet spec pins every traditional category-to-color mapping, the caller override, and the local violet value. The existing `LinkIcon` classification table pins its coarse output, including `Makefile` remaining `other`. Attachment, chat, queue, and sidebar component suites exercise the migrated render paths; their accessibility output does not change because the glyphs remain decorative.
+The `ui-primitives` specs cover case-insensitive suffixes, both path separators, leading-dot files, missing and trailing suffixes, common named files, unknown fallback, all detailed code mappings, rule priority, Flutter context, the exact 48-key artwork set, rejected archive-only categories, static-markup safety, instance-safe SVG ids and references, `aria-hidden`, sizing/class forwarding, distinct artwork, the 112% and 122% foreground-mark transforms, and the traditional solid-sheet/contrast-mark layers without literal SVG colors. A stylesheet spec pins every traditional category-to-color mapping, the caller override, and the local violet value. The existing `LinkIcon` classification table pins its coarse output, including `Makefile` remaining `other`. Attachment, chat, queue, and sidebar component suites exercise the migrated render paths; their accessibility output does not change because the glyphs remain decorative.
 
 ## Consequences
 
 - Client packages use one filename parser and one detailed file-type table instead of importing or recreating feature-local logic.
 - A new suffix joins the detailed table only when an existing glyph truthfully represents it. If its link category differs from the current adapter, the change must also decide whether the 14px link appearance changes.
 - Code and configuration artwork preserves its embedded palette and does not accept the traditional `--dsh-file-type-icon-color` override.
+- The fixed 48-entry artwork table adds about 35 kB uncompressed and 17 kB gzip to the shared browser bundle; adding categories must justify that static baseline cost.
 - The primitive owns no copy but does own the default file-type palette. Consumers continue to own accessible labels and surrounding text, and may replace the category color through `--dsh-file-type-icon-color`.
 - The detailed category names describe presentation, not MIME validation. A suffix is a display hint and does not establish file contents or trust.
diff --git a/.agents/notes/implemented/feature/2026-09-08-shared-file-type-icons.zh.md b/.agents/notes/implemented/feature/2026-09-08-shared-file-type-icons.zh.md
index ea115cd63b..fd1f38ebb3 100644
--- a/.agents/notes/implemented/feature/2026-09-08-shared-file-type-icons.zh.md
+++ b/.agents/notes/implemented/feature/2026-09-08-shared-file-type-icons.zh.md
@@ -14,11 +14,11 @@ Status: implemented
 
 `FileTypeIcon` 接受路径、共享 `IconProps`、显式 `kind`和可选的项目文件快照。传统文件类型把所提供的 28px 文档与文件夹轮廓渲染为 inline SVG。Excel、Markdown、PDF、PPT、Word 的前景标记围绕自身视觉中心缩放至 122%，其余带标记的传统图形使用 112%；文件底板与折角保持源图几何，通用文件不凭空增加中心标记。底板使用实色分类颜色，前景标记与普通折角使用白色，通用文件使用较深的灰色折角。CSS 通过静态设计 token 分配所提供的分类调色板：code/HTML/Markdown 使用 DeepSeek 蓝，Word 使用较浅的 DeepSeek 蓝，Excel 使用绿色，folder/PPT 使用两档琥珀色，PDF 使用红色，未知文件使用中性灰。image 与 video 通过组件本地变量共用所提供的紫色，因为设计平台没有匹配的紫色 token。调用方可通过 `--dsh-file-type-icon-color` 覆盖传统底板颜色。
 
-已识别的代码与配置文件把对应的 20px 方形图稿缩放到请求的图标尺寸。这些技术标记保留自身内嵌的多色填充，是普通 current-color 图标规则的明确例外。映射让 React 优先于 TypeScript/JavaScript、Angular 文件名后缀优先于基础扩展名，并按文件名识别 Docker/Node/Git/Make/CMake；只有可选项目快照包含内容带 `flutter:` 的 `pubspec.yaml` 时才选择 Flutter。Markdown 与 SVG 仍由传统 Markdown 和图片类别拥有。CSV 和 TSV 在文件卡片、文件行及预览标题中使用 code 图标，其可点击链接也使用 code。`.env` 和以 `.env` 结尾的文件名均使用环境配置图标。所有传统与技术 SVG 都是 `aria-hidden` 的，拥有文件身份的卡片、行或按钮提供无障碍名称。
+已识别的代码与配置文件把对应的 20px 方形图稿缩放到请求的图标尺寸。内嵌静态表只包含现有 48 个 `CodeFileType` 条目；资源包中额外的图稿不会新增类别，相邻 manifest 记录负责的设计归属方与来源摘要。测试会拒绝该表中的脚本、事件属性、外部引用与重复 id。`CodeFileIcon` 在插入前为本地 SVG id 加上组件实例前缀，使重复渐变与裁剪路径互不干扰。这些技术标记保留自身内嵌的多色填充，是普通 current-color 图标规则的明确例外。映射让 React 优先于 TypeScript/JavaScript、Angular 文件名后缀优先于基础扩展名，并按文件名识别 Docker/Node/Git/Make/CMake；只有可选项目快照包含内容带 `flutter:` 的 `pubspec.yaml` 时才选择 Flutter。Markdown 与 SVG 仍由传统 Markdown 和图片类别拥有。CSV 和 TSV 在文件卡片、文件行及预览标题中使用 code 图标，其可点击链接也使用 code。`.env` 和以 `.env` 结尾的文件名均使用环境配置图标。所有传统与技术 SVG 都是 `aria-hidden` 的，拥有文件身份的卡片、行或按钮提供无障碍名称。
 
 `LinkIcon` 委托 `classifyFileType` 做扩展名分类，再把精细结果折叠进原有链接词汇：code 与 HTML 使用 `code`，图片使用 `image`，PDF/Word/Excel/PPT 使用 `document`，Markdown、video 与未知文件使用 `other`。无扩展名文件在链接语境中仍是 `other`，因此[可点击链接决策](2026-09-04-web-clickable-link-styles.zh.md)定义的 14px 外观不变。
 
-附件上传卡片、已发送消息文件卡片、排队文件行和工作区文件行渲染 `FileTypeIcon`。Files 标签页标题使用显式的 `folder` 类别，尺寸为 16px。显式交付卡片也使用 28px 的 `FileTypeIcon`，并通过 `fileExtension` 提供默认元数据。两处元数据行使用 `fileExtension`，不再保留本地解析器；`.env` 这样的前导点 basename 会显示 `ENV`，无后缀或末尾点号则不显示扩展名 label。图片内容继续渲染为预览而不是文件类型图形，产物文件链接与 Markdown 文件提及继续使用 `LinkIcon`，因为它们属于链接表面。
+附件上传卡片、已发送消息文件卡片、排队文件行和工作区文件行渲染 `FileTypeIcon`。Files 标签页标题使用显式的 `folder` 类别，尺寸为 16px。显式交付卡片使用 20px 的 `FileTypeIcon`，并通过 `fileExtension` 提供默认元数据。两处元数据行使用 `fileExtension`，不再保留本地解析器；`.env` 这样的前导点 basename 会显示 `ENV`，无后缀或末尾点号则不显示扩展名 label。图片内容继续渲染为预览而不是文件类型图形，产物文件链接与 Markdown 文件提及继续使用 `LinkIcon`，因为它们属于链接表面。
 
 ## 备选方案
 
@@ -32,12 +32,13 @@ Status: implemented
 
 ## 测试
 
-`ui-primitives` 测试覆盖不区分大小写的后缀、两种路径分隔符、前导点文件、无后缀与末尾点号、常见具名文件、未知回退、全部细分代码映射、规则优先级、Flutter 上下文、每一份技术 SVG、实例安全的渐变 id、`aria-hidden`、尺寸/class 转发、不同图稿、112% 与 122% 前景标记变换，以及不含 SVG 字面颜色的传统实色底板/对比标记层。样式表测试钉住每一项传统类别到颜色的映射、调用方覆盖变量与本地紫色值。既有 `LinkIcon` 分类表钉住它的粗粒度输出，包括 `Makefile` 仍为 `other`。附件、聊天、队列和侧边栏组件测试覆盖迁移后的渲染路径；由于图形仍是装饰性的，其无障碍输出不变。
+`ui-primitives` 测试覆盖不区分大小写的后缀、两种路径分隔符、前导点文件、无后缀与末尾点号、常见具名文件、未知回退、全部细分代码映射、规则优先级、Flutter 上下文、精确的 48 键图稿集、被拒绝的资源包额外类别、静态 markup 安全性、实例安全的 SVG id 与引用、`aria-hidden`、尺寸/class 转发、不同图稿、112% 与 122% 前景标记变换，以及不含 SVG 字面颜色的传统实色底板/对比标记层。样式表测试钉住每一项传统类别到颜色的映射、调用方覆盖变量与本地紫色值。既有 `LinkIcon` 分类表钉住它的粗粒度输出，包括 `Makefile` 仍为 `other`。附件、聊天、队列和侧边栏组件测试覆盖迁移后的渲染路径；由于图形仍是装饰性的，其无障碍输出不变。
 
 ## 后果
 
 - 客户端包使用一个文件名解析器与一份精细文件类型表，不再 import 或重新实现功能包本地逻辑。
 - 新后缀只在已有图形能准确表达它时加入精细表。若它的链接类别与当前适配不同，这次改动还必须决定是否改变 14px 链接外观。
 - 代码与配置图稿保留内嵌调色板，不接受传统图形的 `--dsh-file-type-icon-color` 覆盖。
+- 固定的 48 项图稿表为共享浏览器 bundle 增加约 35 kB 未压缩体积和 17 kB gzip 体积；新增类别必须证明这份静态基线成本是必要的。
 - primitive 不拥有文案，但拥有默认文件类型调色板。消费方继续拥有无障碍 label 与周围文字，并可通过 `--dsh-file-type-icon-color` 替换分类颜色。
 - 精细类别名称描述展示意图，不是 MIME 校验。后缀只是展示提示，不能证明文件内容或可信度。
diff --git a/.agents/notes/implemented/feature/2026-09-10-symmetric-message-feedback-submission.i18n.yaml b/.agents/notes/implemented/feature/2026-09-10-symmetric-message-feedback-submission.i18n.yaml
new file mode 100644
index 0000000000..bc63e89dd9
--- /dev/null
+++ b/.agents/notes/implemented/feature/2026-09-10-symmetric-message-feedback-submission.i18n.yaml
@@ -0,0 +1,6 @@
+# Bilingual-pair consistency record (docs/i18n/README.md): the git blob hash of each
+# side as of the last confirmed-consistent state. Both languages carry equal authority;
+# after editing either side, bring the other along and re-record with:
+#   pnpm run verify-translation-pairing --write .agents/notes/implemented/feature/2026-09-10-symmetric-message-feedback-submission.md
+2026-09-10-symmetric-message-feedback-submission.md: 51c754dbd3ecc566e15ec1b7a276fc2a3cf7c551
+2026-09-10-symmetric-message-feedback-submission.zh.md: 0ba5d1a1c53f08b76c5bbc32b84687c3dcd38ec2
diff --git a/.agents/notes/implemented/feature/2026-09-10-symmetric-message-feedback-submission.md b/.agents/notes/implemented/feature/2026-09-10-symmetric-message-feedback-submission.md
new file mode 100644
index 0000000000..51c754dbd3
--- /dev/null
+++ b/.agents/notes/implemented/feature/2026-09-10-symmetric-message-feedback-submission.md
@@ -0,0 +1,25 @@
+# Agent Note: Symmetric message feedback submission
+
+Status: implemented
+
+English | [中文](2026-09-10-symmetric-message-feedback-submission.zh.md)
+
+## Problem
+
+The assistant-message rating controls used different commit points. Like recorded a positive rating immediately, while Dislike opened the feedback dialog and recorded only after Submit. The asymmetry made an accidental Like durable before confirmation and prevented positive feedback from carrying the same optional category and description as negative feedback.
+
+## Decision
+
+The [feedback dialog and categories](2026-09-08-feedback-dialog-and-categories.md) decision owns the shared form and durable taxonomy. Both unrecorded ratings open the shared feedback dialog and record only after Submit. A message `FeedbackDialogTarget` carries the selected `positive` or `negative` rating, and `FeedbackSurface` passes that rating with the dialog entry to `MessageFeedbackController.rate`. The action row reads the committed item before either action: clicking its current rating calls the injected `retract` operation, while clicking an absent or opposite rating opens the dialog. `retract` rechecks the committed rating inside the controller's serialized mutation queue and becomes a no-op after a concurrent change, so it cannot turn stale UI intent into a bare rating put. The dialog remains optional-input: submitting without a category or description records the selected rating and raises the acknowledgement toast; dismissing it records nothing.
+
+## Alternatives considered
+
+**Keep Like as an immediate action.** This preserves one fewer click for positive feedback, but keeps two submission models beside each other and prevents positive reports from carrying context.
+
+**Require the dialog to retract a recorded rating.** Retraction has no category or description to collect, and an extra confirmation would make the existing undo action less direct.
+
+**Create separate positive and negative forms.** The fields, validation, failures, and acknowledgement are identical; carrying the rating in the existing target keeps one draft and submission lifecycle.
+
+## Consequences
+
+Neither rating creates a `feedback/message-put` event until the user submits the dialog. Positive and negative records can both include a category and note, while clicking the active rating continues to create `feedback/message-delete` without opening the dialog. Unit coverage pins the shared action path and target routing, and the keyless Web scenarios submit both ratings through the real dialog before checking durable events and telemetry release.
diff --git a/.agents/notes/implemented/feature/2026-09-10-symmetric-message-feedback-submission.zh.md b/.agents/notes/implemented/feature/2026-09-10-symmetric-message-feedback-submission.zh.md
new file mode 100644
index 0000000000..0ba5d1a1c5
--- /dev/null
+++ b/.agents/notes/implemented/feature/2026-09-10-symmetric-message-feedback-submission.zh.md
@@ -0,0 +1,25 @@
+# Agent Note: 对称消息反馈提交
+
+Status: implemented
+
+[English](2026-09-10-symmetric-message-feedback-submission.md) | 中文
+
+## 问题
+
+助手消息的两个评分控件使用不同的提交时点。点赞会立即记录正面评分，点踩则先打开反馈弹窗，仅在用户提交后记录。这种不对称会让误触点赞在确认前就持久化，也让正面反馈无法携带与负面反馈相同的可选分类和描述。
+
+## 决策
+
+[反馈弹窗与分类](2026-09-08-feedback-dialog-and-categories.zh.md)决策负责共用表单和持久化分类表。两种未记录的评分都打开共用反馈弹窗，并且只在提交后记录。消息 `FeedbackDialogTarget` 携带所选的 `positive` 或 `negative` 评分，`FeedbackSurface` 将该评分与弹窗条目一起传给 `MessageFeedbackController.rate`。动作行会在任一操作前读取已提交条目：点击当前评分会调用注入的 `retract` 操作，点击未记录或相反评分则打开弹窗。`retract` 会在控制器的串行变更队列内重新检查已提交评分，并在并发变更后变为无操作，因此不会把陈旧的 UI 意图转成裸评分 put。弹窗的输入仍可全部留空：不选分类也不填描述时提交会记录所选评分并弹出确认 toast；关闭弹窗不会记录任何内容。
+
+## 考虑过的替代方案
+
+**保留点赞立即提交。** 这能让正面反馈少一次点击，但会让并列的两个评分继续使用不同提交模式，也无法让正面反馈携带上下文。
+
+**撤回已记录评分也必须经过弹窗。** 撤回没有需要收集的分类或描述，多一次确认会让现有撤销操作变得不够直接。
+
+**分别创建正面和负面表单。** 两者的字段、校验、失败处理与确认完全相同；在现有目标中携带评分即可共用一套草稿与提交生命周期。
+
+## 后果
+
+用户提交弹窗前，两种评分都不会创建 `feedback/message-put` 事件。正面与负面记录都可以包含分类和备注，而点击当前评分仍会直接创建 `feedback/message-delete`，无需打开弹窗。单元测试固定共用动作路径与目标路由，无密钥 Web 场景则通过真实弹窗提交两种评分，再检查持久事件与遥测投递。
diff --git a/apps/web/tests/feedback-release.e2e.ts b/apps/web/tests/feedback-release.e2e.ts
index fdb1330697..4643da9cf8 100644
--- a/apps/web/tests/feedback-release.e2e.ts
+++ b/apps/web/tests/feedback-release.e2e.ts
@@ -218,12 +218,17 @@ describe.each(MODE === 'record' ? ['deepseek-official'] : ['deepseek-official',
     const like = page.getByRole('button', { name: 'Good response' })
     await like.hover()
     await like.click()
+    const dialog = page.getByRole('dialog', { name: 'Submit feedback' })
+    await dialog.getByRole('button', { name: 'Instruction understanding and following', exact: true }).click()
+    await dialog.getByRole('textbox', { name: 'Feedback details' }).fill('Clear and complete.')
+    expect(captured()).toHaveLength(releasedCount)
+    await dialog.getByRole('button', { name: 'Submit', exact: true }).click()
+    await expect.poll(() => dialog.count()).toBe(0)
     const rated = page.getByRole('button', { name: 'Remove rating' })
     await expect.poll(() => rated.getAttribute('aria-pressed')).toBe('true')
     await expectFeedbackRelease('feedback/message-put', 1)
-    // Dislike collects the category and note in the dialog; typing releases nothing.
+    // The second rating uses the same dialog; typing releases nothing.
     await page.getByRole('button', { name: 'Bad response' }).click()
-    const dialog = page.getByRole('dialog', { name: 'Submit feedback' })
     await dialog.getByRole('button', { name: 'Task result', exact: true }).click()
     await dialog.getByRole('textbox', { name: 'Feedback details' }).fill('Read both files before answering.')
     expect(captured()).toHaveLength(releasedCount)
@@ -242,7 +247,7 @@ describe.each(MODE === 'record' ? ['deepseek-official'] : ['deepseek-official',
       { data: { text: 'the second remark' } },
     ])
     expect(events.filter(event => event.type === 'feedback/message-put')).toMatchObject([
-      { data: { sessionId, item: { rating: 'positive' } } },
+      { data: { sessionId, item: { rating: 'positive', note: 'Clear and complete.', category: 'instruction-following' } } },
       { data: { sessionId, item: { rating: 'negative', note: 'Read both files before answering.', category: 'task-result' } } },
     ])
     expect(events.filter(event => event.type === 'feedback/message-delete')).toMatchObject([{ data: { sessionId } }])
@@ -251,7 +256,7 @@ describe.each(MODE === 'record' ? ['deepseek-official'] : ['deepseek-official',
     expect(captured()).toHaveLength(releasedCount)
     const wire = uploads.join('\n')
     for (const text of ['the diff view is unreadable', 'the second remark',
-      'Read both files before answering.']) expect(wire).toContain(text)
+      'Clear and complete.', 'Read both files before answering.']) expect(wire).toContain(text)
     const feedback = events.flatMap<Record<string, string | undefined>>((event) => {
       switch (event.type) {
         case 'feedback/record': return [{ type: event.type, text: event.data.text }]
diff --git a/apps/web/tests/message-feedback.e2e.ts b/apps/web/tests/message-feedback.e2e.ts
index 8677beb6d9..df89180c18 100644
--- a/apps/web/tests/message-feedback.e2e.ts
+++ b/apps/web/tests/message-feedback.e2e.ts
@@ -1,8 +1,8 @@
 // Keyless browser regression for durable per-message feedback. Cold-seeds a
-// settled two-turn transcript (zero model calls), likes one assistant message
-// and sees the acknowledgement, replaces the Like through the Dislike dialog
-// with a category and a note, proves the judgment survives a full page reload
-// from the Host's canonical log, then retracts it.
+// settled two-turn transcript (zero model calls), records a Like through the
+// feedback dialog, replaces it through the same dialog with a Dislike, proves
+// the judgment survives a full page reload from the Host's canonical log, then
+// retracts it.
 import { readFile } from 'node:fs/promises'
 import { fileURLToPath } from 'node:url'
 import type { Browser, Page } from 'playwright'
@@ -20,6 +20,7 @@ import { newEnglishPage, saveFailureShot } from './support.ts'
 const SEED = fileURLToPath(new URL('../../../snapshots/web/seeded-history/session.v3.jsonl', import.meta.url))
 const MODE = webSnapshotMode()
 const SEED_ID = 'message-feedback-web-e2e'
+const POSITIVE_NOTE = 'Clear and complete.'
 const NOTE = 'Read both files before answering.'
 
 describe('web e2e: durable per-message feedback', () => {
@@ -58,7 +59,7 @@ describe('web e2e: durable per-message feedback', () => {
     await sessionRow.click()
   }
 
-  it.skipIf(MODE === 'record')('persists a Dislike with its category and note across a reload, then retracts', async () => {
+  it.skipIf(MODE === 'record')('submits both ratings through the dialog, persists the Dislike, then retracts it', async () => {
     onTestFailed(() => saveFailureShot(page, 'web-e2e-message-feedback'))
     await openSeededSession()
 
@@ -71,21 +72,29 @@ describe('web e2e: durable per-message feedback', () => {
     await like.scrollIntoViewIfNeeded()
     await like.hover()
     await like.click()
-    // A Like records at once and is acknowledged; a recorded rating relabels
-    // the button to what the next click would do.
+    const dialog = page.getByRole('dialog', { name: 'Submit feedback' })
+    await dialog.waitFor({ timeout: 10_000 })
+    await dialog.getByRole('button', { name: 'Stability and speed', exact: true }).click()
+    await dialog.getByRole('textbox', { name: 'Feedback details' }).fill(POSITIVE_NOTE)
+    await dialog.getByRole('button', { name: 'Submit', exact: true }).click()
+    await expect.poll(() => dialog.count(), { timeout: 10_000 }).toBe(0)
     await page.getByRole('alert').filter({ hasText: 'Thanks for your feedback' }).waitFor({ timeout: 10_000 })
     const rated = page.getByRole('button', { name: 'Remove rating' }).first()
     await expect.poll(() => rated.getAttribute('aria-pressed'), { timeout: 10_000 }).toBe('true')
 
-    // Dislike opens the Session's feedback dialog; its submission replaces
-    // the Like with a negative judgment carrying the category and note.
+    // The same dialog records a negative judgment with its own category and
+    // note, replacing the positive judgment only after submission.
     await page.getByRole('button', { name: 'Bad response' }).first().click()
-    const dialog = page.getByRole('dialog', { name: 'Submit feedback' })
     await dialog.waitFor({ timeout: 10_000 })
     await expect.poll(() => dialog.getByRole('textbox', { name: 'Feedback details' }).getAttribute('placeholder'))
       .toBe('Add details to help us improve. Your submission will include the current conversation log.')
     await dialog.getByRole('button', { name: 'Task result', exact: true }).click()
-    await dialog.getByRole('textbox', { name: 'Feedback details' }).fill(NOTE)
+    const details = dialog.getByRole('textbox', { name: 'Feedback details' })
+    await details.fill('x'.repeat(8193))
+    await dialog.getByRole('button', { name: 'Submit', exact: true }).click()
+    await page.getByRole('alert').filter({ hasText: 'The description is too long' }).waitFor({ timeout: 10_000 })
+    expect(await dialog.count()).toBe(1)
+    await details.fill(NOTE)
     await dialog.getByRole('button', { name: 'Submit', exact: true }).click()
     await expect.poll(() => dialog.count(), { timeout: 10_000 }).toBe(0)
     await expect.poll(() => rated.getAttribute('aria-label'), { timeout: 10_000 }).toBe('Remove rating')
@@ -116,9 +125,11 @@ describe('web e2e: durable per-message feedback', () => {
     await expect.poll(() => cold.getAttribute('aria-pressed'), { timeout: 10_000 }).toBe('false')
     const agent = scaffold.ctx.agents.get(SessionId(SEED_ID))
     if (agent === undefined) throw new Error('seeded session did not attach an agent')
-    const put = agent.session.snapshotEvents().filter(event => event.type === 'feedback/message-put').at(-1)
-    expect(put?.type === 'feedback/message-put' ? put.data.item : undefined)
-      .toMatchObject({ rating: 'negative', note: NOTE, category: 'task-result' })
+    const puts = agent.session.snapshotEvents().filter(event => event.type === 'feedback/message-put')
+    expect(puts.map(event => event.type === 'feedback/message-put' ? event.data.item : undefined)).toMatchObject([
+      { rating: 'positive', note: POSITIVE_NOTE, category: 'service-stability' },
+      { rating: 'negative', note: NOTE, category: 'task-result' },
+    ])
 
     // Re-clicking the active rating retracts it, and the note goes with it.
     await restored.click()
diff --git a/apps/web/tests/present.e2e.ts b/apps/web/tests/present.e2e.ts
index d1b4bc713c..38e8f16cc9 100644
--- a/apps/web/tests/present.e2e.ts
+++ b/apps/web/tests/present.e2e.ts
@@ -176,6 +176,73 @@ fs.appendFileSync(${JSON.stringify(openLog)}, JSON.stringify({ path, action, con
       expect(await failed.innerText()).toContain('Delivery failed')
       expect(await delivered.innerText()).toContain('Delivered')
       await page.locator('[data-turn-process]').click()
+      const geometry = await page.evaluate(() => {
+        const requiredElement = <T extends Element>(value: T | null | undefined, name: string): T => {
+          if (value === null || value === undefined) throw new Error(`present layout is missing ${name}`)
+          return value
+        }
+        const answer = requiredElement(
+          [...document.querySelectorAll<HTMLElement>('[data-chat-flow-kind="assistant-step"]')]
+            .find(element => element.textContent?.includes('PRESENT_DONE')),
+          'final answer',
+        )
+        const presentedGrid = requiredElement(
+          document.querySelector<HTMLElement>('[data-presented-files-row]'),
+          'presented grid',
+        )
+        const presentedRoot = requiredElement(presentedGrid.parentElement, 'presented root')
+        const turnTail = requiredElement(presentedRoot.closest<HTMLElement>('[data-turn-tail]'), 'turn tail')
+        const actions = requiredElement(
+          turnTail.querySelector<HTMLButtonElement>('button[aria-label="Copy"]')?.parentElement,
+          'action row',
+        )
+        const cards = [...presentedGrid.querySelectorAll<HTMLElement>('[data-presented-file]')]
+        const report = requiredElement(
+          cards.find(card => card.textContent?.includes('report.txt')),
+          'report card',
+        )
+        const title = requiredElement(
+          report.querySelector<HTMLElement>('span[title="report.txt"]')
+            ?? [...report.querySelectorAll<HTMLElement>('span')]
+              .find(element => element.textContent === 'report.txt'),
+          'report title',
+        )
+        const description = requiredElement(report.querySelector<HTMLElement>('span[role="status"]'), 'report status')
+        const open = requiredElement(
+          report.querySelector<HTMLButtonElement>('button[aria-label="Open report.txt in sidebar"]'),
+          'report open action',
+        )
+        const icon = requiredElement(report.querySelector<SVGElement>('svg'), 'report icon')
+        const secondCard = requiredElement(cards[1], 'second card')
+        const answerRect = answer.getBoundingClientRect()
+        const presentedRect = presentedRoot.getBoundingClientRect()
+        const actionsRect = actions.getBoundingClientRect()
+        const firstCard = report.getBoundingClientRect()
+        const secondCardRect = secondCard.getBoundingClientRect()
+        const gridStyle = getComputedStyle(presentedGrid)
+        return {
+          answerToPresented: presentedRect.top - answerRect.bottom,
+          presentedToActions: actionsRect.top - presentedRect.bottom,
+          cardHeight: firstCard.height,
+          cardColumnGap: secondCardRect.left - firstCard.right,
+          gridColumnGap: gridStyle.columnGap,
+          gridRowGap: gridStyle.rowGap,
+          iconWidth: icon.getAttribute('width'),
+          titleFontSize: getComputedStyle(title).fontSize,
+          descriptionFontSize: getComputedStyle(description).fontSize,
+          openFontSize: getComputedStyle(open).fontSize,
+        }
+      })
+      expect(geometry.answerToPresented).toBeCloseTo(20, 1)
+      expect(geometry.presentedToActions).toBeCloseTo(20, 1)
+      expect(geometry.cardHeight).toBeCloseTo(60, 1)
+      expect(geometry.cardColumnGap).toBeCloseTo(10, 1)
+      expect(geometry.gridColumnGap).toBe('10px')
+      expect(geometry.gridRowGap).toBe('10px')
+      expect(geometry.iconWidth).toBe('20')
+      expect(geometry.titleFontSize).toBe('13px')
+      expect(geometry.descriptionFontSize).toBe('10px')
+      expect(geometry.openFontSize).toBe('12px')
       await page.setViewportSize({ width: 480, height: 900 })
       const row = page.locator('[data-presented-files-row]')
       await row.scrollIntoViewIfNeeded()
diff --git a/apps/web/tests/produced-files.e2e.ts b/apps/web/tests/produced-files.e2e.ts
index 38628b0e8c..8ee9644030 100644
--- a/apps/web/tests/produced-files.e2e.ts
+++ b/apps/web/tests/produced-files.e2e.ts
@@ -171,6 +171,37 @@ describe('web e2e: a finished turn ends with the files it produced', () => {
     expect(await page.getByRole('button', { name: /folder/i }).count()).toBe(0)
     expect(await page.getByText('Files changed', { exact: true }).count()).toBe(1)
 
+    const turnSpacing = await page.evaluate((done) => {
+      const requiredElement = <T extends Element>(value: T | null | undefined, name: string): T => {
+        if (value === null || value === undefined) throw new Error(`produced-file layout is missing ${name}`)
+        return value
+      }
+      const answer = requiredElement(
+        [...document.querySelectorAll<HTMLElement>('[data-chat-flow-kind="assistant-step"]')]
+          .find(element => element.textContent?.includes(done)),
+        'final answer',
+      )
+      const producedRow = requiredElement(
+        document.querySelector<HTMLElement>('[data-produced-files-row]'),
+        'produced row',
+      )
+      const producedRoot = requiredElement(producedRow.parentElement?.parentElement, 'produced root')
+      const turnTail = requiredElement(producedRoot.closest<HTMLElement>('[data-turn-tail]'), 'turn tail')
+      const actions = requiredElement(
+        turnTail.querySelector<HTMLButtonElement>('button[aria-label="Copy"]')?.parentElement,
+        'action row',
+      )
+      const answerRect = answer.getBoundingClientRect()
+      const producedRect = producedRoot.getBoundingClientRect()
+      const actionsRect = actions.getBoundingClientRect()
+      return {
+        answerToProduced: producedRect.top - answerRect.bottom,
+        producedToActions: actionsRect.top - producedRect.bottom,
+      }
+    }, DONE)
+    expect(turnSpacing.answerToProduced).toBeCloseTo(20, 1)
+    expect(turnSpacing.producedToActions).toBeCloseTo(20, 1)
+
     const tops = await row.locator(':scope > *:visible').evaluateAll(elements =>
       elements.map(element => element.getBoundingClientRect().top))
     expect(new Set(tops.map(top => Math.round(top))).size).toBe(1)
diff --git a/docs/subsystems/feedback.i18n.yaml b/docs/subsystems/feedback.i18n.yaml
index ba31e1ea1d..621fcf80ff 100644
--- a/docs/subsystems/feedback.i18n.yaml
+++ b/docs/subsystems/feedback.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write docs/subsystems/feedback.md
-feedback.md: 2c6728d97a6a62735e4ef8b97983f08060d4a2c5
-feedback.zh.md: db9f03cb82685763bc3b424c0f6b29738f59ec99
+feedback.md: e153047bcc260bcd06847b42eb6b983ac9247d03
+feedback.zh.md: 60263ea4509c0b10ed9f57d13f1564ced1e066c7
diff --git a/docs/subsystems/feedback.md b/docs/subsystems/feedback.md
index 2c6728d97a..e153047bcc 100644
--- a/docs/subsystems/feedback.md
+++ b/docs/subsystems/feedback.md
@@ -27,7 +27,7 @@ interface MessageFeedbackItem {
   readonly rating: MessageFeedbackRating
   /** Optional explanation, preserved verbatim after validation. */
   readonly note?: string
-  /** Category the human filed a negative judgment under. */
+  /** Category the human filed the judgment under. */
   readonly category?: FeedbackCategory
   /** Equality-only token replaced by every material create or update. */
   readonly version: MessageFeedbackVersion
@@ -298,9 +298,9 @@ When explicitly enabled, [`session-log-deepseek`](../../packages/session/session
 
 The controls are the `feedback` entry (order 10) of the `conversation.chat.assistant-actions` list slot, which `ui-conversation` declares and renders inside the finalized assistant message's IconActions row. `AssistantMessageNode` carries the optional `messageId` from the `assistant/message` event. The field is absent on interruption-frozen partials, and the render site skips the slot when it is absent. The strip renders once per turn, on the closing assistant message: the Host accepts every append-origin step message as a target, but earlier steps of a multi-step turn render tool rows rather than a rateable body, so the UI exposes a narrower set than the Host contract allows.
 
-One `MessageFeedbackController` per Session backs every message control in that Session: a single `list` read seeds the whole transcript, deferred to first hover or focus rather than fired on mount. Each mutation sends the version that controller last observed as `ifVersion`; a `version-conflict` reply carries the authoritative item, so the controller reconciles from the reply instead of refetching. Mutations serialize per Session so a queued operation compares against the committed version. A `connection/reset` refreshes only Sessions already read.
+One `MessageFeedbackController` per Session backs every message control in that Session: a single `list` read seeds the whole transcript, deferred to first hover or focus rather than fired on mount. Each mutation sends the version that controller last observed as `ifVersion`; a `version-conflict` reply carries the authoritative item, so the controller reconciles from the reply instead of refetching. Mutations serialize per Session so a queued operation compares against the committed version. The injected `retract` operation rechecks the committed rating inside that queue and becomes a no-op after a concurrent change, so stale UI cannot bypass the dialog by recording a bare rating. A `connection/reset` refreshes only Sessions already read.
 
-Like records the bare positive judgment at once and shows the acknowledgement toast. Dislike opens the Session's feedback dialog, the `feedback-dialog` entry of `conversation.input.overlay`: the shared Modal card with seven category chips and a detail box. Submit puts a negative judgment carrying the chosen category and the trimmed description, or neither. The same dialog opens for the Session from a bare `/feedback` — a decoration `ui-commands` routes as an `action` — and then records through `sessionFeedback.record`; `/feedback <text>` keeps the Host command path. Clicking a recorded rating retracts it.
+Either unrecorded rating opens the Session's feedback dialog, the `feedback-dialog` entry of `conversation.input.overlay`: the shared Modal card with seven category chips and a detail box. Submit puts the selected judgment carrying the chosen category and the trimmed description, or neither; success closes the dialog and shows the acknowledgement toast, while failure keeps the dialog and draft open and shows a warning toast. The same dialog opens for the Session from a bare `/feedback` — a decoration `ui-commands` routes as an `action` — and then records through `sessionFeedback.record`; `/feedback <text>` keeps the Host command path. Clicking a recorded rating retracts it without opening the dialog.
 
 ## Boundaries and limitations
 
diff --git a/docs/subsystems/feedback.zh.md b/docs/subsystems/feedback.zh.md
index db9f03cb82..60263ea450 100644
--- a/docs/subsystems/feedback.zh.md
+++ b/docs/subsystems/feedback.zh.md
@@ -27,7 +27,7 @@ interface MessageFeedbackItem {
   readonly rating: MessageFeedbackRating
   /** Optional explanation, preserved verbatim after validation. */
   readonly note?: string
-  /** Category the human filed a negative judgment under. */
+  /** Category the human filed the judgment under. */
   readonly category?: FeedbackCategory
   /** Equality-only token replaced by every material create or update. */
   readonly version: MessageFeedbackVersion
@@ -298,9 +298,9 @@ fork 种子可以包含父 Session 的反馈事件，但 payload 保留父级 `s
 
 控件是 `conversation.chat.assistant-actions` list slot 的 `feedback` 条目（order 10），该 slot 由 `ui-conversation` 声明，并渲染在已定稿助手消息的 IconActions 行内。`AssistantMessageNode` 携带来自 `assistant/message` 事件的可选 `messageId`。被中断冻结的部分输出没有该字段，渲染点在字段缺失时跳过该 slot。该操作栏每个 Turn 渲染一次，位于收尾的助手消息上：Host 接受每条 append-origin 步骤消息作为目标，但多步骤 Turn 中较早的步骤渲染的是工具行而非可评分正文，因此 UI 暴露的范围比 Host 约定允许的更窄。
 
-每个 Session 一个 `MessageFeedbackController`，支撑该 Session 内所有消息的控件：一次 `list` 读取即填充整段对话，且延迟到首次 hover 或 focus 才发起，而非挂载时触发。每次变更把该 controller 最后观察到的版本作为 `ifVersion` 发送；`version-conflict` 响应携带权威条目，controller 据此对账而不重新拉取。变更按 Session 串行，排队操作与已提交版本比较。`connection/reset` 只刷新已读取过的 Session。
+每个 Session 一个 `MessageFeedbackController`，支撑该 Session 内所有消息的控件：一次 `list` 读取即填充整段对话，且延迟到首次 hover 或 focus 才发起，而非挂载时触发。每次变更把该 controller 最后观察到的版本作为 `ifVersion` 发送；`version-conflict` 响应携带权威条目，controller 据此对账而不重新拉取。变更按 Session 串行，排队操作与已提交版本比较。注入的 `retract` 操作会在该队列内重新检查已提交评分，并在并发变更后变为无操作，因此陈旧 UI 无法绕过弹窗记录裸评分。`connection/reset` 只刷新已读取过的 Session。
 
-点赞立即记录不带备注的好评并显示确认 toast。点踩打开该 Session 的反馈弹窗，即 `conversation.input.overlay` 的 `feedback-dialog` 条目：共用的 Modal 卡片，里面是七个分类标签和一个详情框。提交会 put 一条差评，带上所选分类与去除首尾空白的描述，两者也可都不带。不带文本的 `/feedback`（`ui-commands` 以 `action` 路由的一个装饰）为 Session 打开同一个弹窗，随后通过 `sessionFeedback.record` 记录；`/feedback <text>` 仍走宿主命令路径。再次点击已记录的评分会撤回它。
+任一未记录的评分都会打开该 Session 的反馈弹窗，即 `conversation.input.overlay` 的 `feedback-dialog` 条目：共用的 Modal 卡片，里面是七个分类标签和一个详情框。提交会 put 所选评分，带上所选分类与去除首尾空白的描述，两者也可都不带；成功会关闭弹窗并显示确认 toast，失败则保留弹窗与草稿并显示警告 toast。不带文本的 `/feedback`（`ui-commands` 以 `action` 路由的一个装饰）为 Session 打开同一个弹窗，随后通过 `sessionFeedback.record` 记录；`/feedback <text>` 仍走宿主命令路径。再次点击已记录的评分会直接撤回，不打开弹窗。
 
 ## 边界与限制
 
diff --git a/packages/client/README.i18n.yaml b/packages/client/README.i18n.yaml
index 2a62fbbd35..ed24447f76 100644
--- a/packages/client/README.i18n.yaml
+++ b/packages/client/README.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write packages/client/README.md
-README.md: cf4b6aceb320d942d695fb1dce53c2e67e53a969
-README.zh.md: 1f895de009e82688ede9b3a83807bae9689ccb80
+README.md: 0894d4e0ef5e45876a58abea40cdad840e7dfacd
+README.zh.md: 5604f95acbcac88a157981b936791c9284a858bb
diff --git a/packages/client/README.md b/packages/client/README.md
index cf4b6aceb3..0894d4e0ef 100644
--- a/packages/client/README.md
+++ b/packages/client/README.md
@@ -71,7 +71,7 @@ The kernel packages boot and serve the page; the UI feature packages present it.
 | [`ui-settings-models/`](ui-settings-models/README.md) | Provides model-provider configuration and DeepSeek onboarding | — |
 | [`ui-settings-plugin-inventory/`](ui-settings-plugin-inventory/README.md) | Contributes the read-only Host Loader inventory tab to Plugins settings | — |
 | [`ui-deliverables/`](ui-deliverables/README.md) | Produces the produced-files turn tail and clickable final-response file references | — |
-| [`ui-message-feedback/`](ui-message-feedback/README.md) | The feedback surface: per-message Like/Dislike in the assistant-message action strip, and the feedback dialog behind Dislike and `/feedback` | — |
+| [`ui-message-feedback/`](ui-message-feedback/README.md) | The feedback surface: per-message Like/Dislike in the assistant-message action strip, and the feedback dialog behind both ratings and `/feedback` | — |
 | [`ui-directory-picker-browse/`](ui-directory-picker-browse/README.md) | In-app directory browsing surface for the workspace directory flow | — |
 | [`ui-directory-picker-native/`](ui-directory-picker-native/README.md) | Native directory-picker surface driving the host's OS chooser | — |
 | [`ui-open-in-app/`](ui-open-in-app/README.md) | Session-header split button opening the workspace directory in an installed application | — |
diff --git a/packages/client/README.zh.md b/packages/client/README.zh.md
index 1f895de009..5604f95acb 100644
--- a/packages/client/README.zh.md
+++ b/packages/client/README.zh.md
@@ -71,7 +71,7 @@ kind: "package-group"
 | [`ui-settings-models/`](ui-settings-models/README.zh.md) | 提供模型提供方配置与 DeepSeek 引导 | — |
 | [`ui-settings-plugin-inventory/`](ui-settings-plugin-inventory/README.zh.md) | 向“插件”设置贡献只读的 Host Loader 清单标签页 | — |
 | [`ui-deliverables/`](ui-deliverables/README.zh.md) | 生成已产出文件的轮次尾部与可点击的最终响应文件引用 | — |
-| [`ui-message-feedback/`](ui-message-feedback/README.zh.md) | 反馈界面：助手消息操作条中的逐消息赞踩，以及点踩与 `/feedback` 背后的反馈弹窗 | — |
+| [`ui-message-feedback/`](ui-message-feedback/README.zh.md) | 反馈界面：助手消息操作条中的逐消息赞踩，以及点赞、点踩与 `/feedback` 背后的反馈弹窗 | — |
 | [`ui-directory-picker-browse/`](ui-directory-picker-browse/README.zh.md) | 面向工作区目录流程的应用内目录浏览界面 | — |
 | [`ui-directory-picker-native/`](ui-directory-picker-native/README.zh.md) | 驱动宿主 OS 选择器的原生目录选择界面 | — |
 | [`ui-open-in-app/`](ui-open-in-app/README.zh.md) | 在已安装应用中打开 workspace 目录的会话头部分体按钮 | — |
diff --git a/packages/client/ui-chat/README.i18n.yaml b/packages/client/ui-chat/README.i18n.yaml
index 4db27677d0..525de1dcc3 100644
--- a/packages/client/ui-chat/README.i18n.yaml
+++ b/packages/client/ui-chat/README.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write packages/client/ui-chat/README.md
-README.md: 860dcb9eeb9c92a14d9128d9d8c95c29796726f8
-README.zh.md: 4dd06a16b19b14cacc0ded603cc1cf8869dd1a43
+README.md: cbf8fb88670913fac83154f5450e452674b2ed65
+README.zh.md: 9ee73474b2848ef19252bb26c5f0a215e323b413
diff --git a/packages/client/ui-chat/README.md b/packages/client/ui-chat/README.md
index 860dcb9eeb..cbf8fb8867 100644
--- a/packages/client/ui-chat/README.md
+++ b/packages/client/ui-chat/README.md
@@ -16,6 +16,7 @@ File-mention providers receive the viewed Session ID with the closing-turn owner
 
 - [System prompt row](#system-prompt-row)
 - [Turn token usage](#turn-token-usage)
+- [Completed-turn footer](#completed-turn-footer)
 - [Turn Process Folding](#turn-process-folding)
 - [Scroll ownership](#scroll-ownership)
 - [Model Experience](#model-experience)
@@ -34,6 +35,11 @@ Each nonempty appended `system/message` owns a collapsed prompt row, including a
 
 A completed Turn shows an expandable usage row only when the loaded window includes `turn/start` and every started model attempt reports safe, exact usage. The row omits unavailable optional buckets. Incomplete or contradictory accounting hides the complete disclosure instead of presenting a partial total.
 
+<a id="completed-turn-footer"></a>
+## Completed-turn footer
+
+The completed-turn action footer starts 20px below the preceding prose or extension content.
+
 -----
 
 <a id="turn-process-folding"></a>
diff --git a/packages/client/ui-chat/README.zh.md b/packages/client/ui-chat/README.zh.md
index 4dd06a16b1..9ee73474b2 100644
--- a/packages/client/ui-chat/README.zh.md
+++ b/packages/client/ui-chat/README.zh.md
@@ -16,6 +16,7 @@ kind: "package-reference"
 
 - [系统提示词行](#system-prompt-row)
 - [轮次 token 用量](#turn-token-usage)
+- [已完成轮次的页脚](#completed-turn-footer)
 - [轮次过程折叠](#turn-process-folding)
 - [滚动归属](#scroll-ownership)
 - [模型体验](#model-experience)
@@ -36,6 +37,11 @@ kind: "package-reference"
 
 只有当已加载窗口包含 `turn/start`，且每次已启动的模型尝试都报告安全、精确的用量时，已完成 Turn 才显示可展开的用量行。该行会省略不可用的可选用量桶。记账不完整或相互矛盾时，整个详情都不显示，避免把部分总量冒充完整结果。
 
+<a id="completed-turn-footer"></a>
+## 已完成轮次的页脚
+
+已完成轮次的操作页脚位于前方正文或扩展内容下方 20px。
+
 -----
 
 <a id="turn-process-folding"></a>
diff --git a/packages/client/ui-chat/src/client/chat/TurnTailNodeView.module.css b/packages/client/ui-chat/src/client/chat/TurnTailNodeView.module.css
index 831e6e212b..bfa386d31c 100644
--- a/packages/client/ui-chat/src/client/chat/TurnTailNodeView.module.css
+++ b/packages/client/ui-chat/src/client/chat/TurnTailNodeView.module.css
@@ -5,5 +5,8 @@
 }
 
 .actions {
+  /* With tail content, this adds to the root gap; without it, the Chat flow's
+     preceding-item offset supplies the other 16px. */
+  margin-top: 4px;
   margin-left: -6px;
 }
diff --git a/packages/client/ui-chat/tests/turn-tail-spacing.client.spec.ts b/packages/client/ui-chat/tests/turn-tail-spacing.client.spec.ts
new file mode 100644
index 0000000000..1955fd41cd
--- /dev/null
+++ b/packages/client/ui-chat/tests/turn-tail-spacing.client.spec.ts
@@ -0,0 +1,16 @@
+/** CSS checks for the completed-turn footer's 20px content spacing. */
+import { readFileSync } from 'node:fs'
+import { fileURLToPath } from 'node:url'
+import { describe, expect, it } from 'vitest'
+
+const read = (name: string): string =>
+  readFileSync(fileURLToPath(new URL(`../src/client/chat/${name}`, import.meta.url)), 'utf8')
+
+describe('completed-turn spacing', () => {
+  it('combines the flow and footer offsets around turn-tail content', () => {
+    expect(read('ChatView.module.css')).toMatch(/margin-top:\s*var\(--dsh-chat-flow-gap, 16px\)/)
+    const tail = read('TurnTailNodeView.module.css')
+    expect(tail).toMatch(/\.root\s*\{[^}]*gap:\s*16px/s)
+    expect(tail).toMatch(/\.actions\s*\{[^}]*margin-top:\s*4px/s)
+  })
+})
diff --git a/packages/client/ui-deliverables/README.i18n.yaml b/packages/client/ui-deliverables/README.i18n.yaml
index 74d4c89ee7..d044cf5fea 100644
--- a/packages/client/ui-deliverables/README.i18n.yaml
+++ b/packages/client/ui-deliverables/README.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write packages/client/ui-deliverables/README.md
-README.md: 857b71c5e0f3e4ba0dac0e8453492684c76ca0e4
-README.zh.md: 8e801a164c8a60de4aea8ff6a224e4823e2d3ccc
+README.md: aaf18126e2ebbc0beabe7781b0c5ad30049769ee
+README.zh.md: 445401890639c936d4300f85ff9a44b4fd8236d1
diff --git a/packages/client/ui-deliverables/README.md b/packages/client/ui-deliverables/README.md
index 857b71c5e0..aaf18126e2 100644
--- a/packages/client/ui-deliverables/README.md
+++ b/packages/client/ui-deliverables/README.md
@@ -30,13 +30,13 @@ Mount this plugin alongside `ui-conversation`; a finished turn then ends with th
 <a id="explicit-deliveries"></a>
 ### Explicit deliveries
 
-The Web `standard`, `ptc`, and `cordis` presets expose `present` for final files accessible through the Session filesystem, including files created through Bash. Call it with `files: [{ path, description? }]` after creating the files. The [present tool](../../fs/tool-present/README.md) owns file-count limits and Session declarations. The closing turn shows one delivery as a full-width card and multiple deliveries in a grid of at most two cards per row. A list longer than four files starts collapsed and provides a control that reveals or hides the complete list. Each card uses the shared `FileTypeIcon` and shows the basename and description, or the file type when no description exists; a trailing parenthesized suffix in the description is omitted, and hovering the card replaces that line with the Sidebar-preview action. Clicking the card or the left side of its split Open control previews the file in the right Sidebar. The chevron opens the standard menu for the Host default application plus Show in Finder on macOS, Show in File Explorer on Windows and WSL, or Open containing folder through the default Linux file manager. Matching inline-code references open the same source files without starting a browser download. Repeated declaration of a path selects its latest description before the closing reply.
+The Web `standard`, `ptc`, and `cordis` presets expose `present` for final files accessible through the Session filesystem, including files created through Bash. Call it with `files: [{ path, description? }]` after creating the files. The [present tool](../../fs/tool-present/README.md) owns file-count limits and Session declarations. The closing turn shows one delivery as a full-width card and multiple deliveries in a two-column grid with 10px gaps. A list longer than four files starts collapsed and provides a control that reveals or hides the complete list. Each 60px-high card uses 8px vertical and 10px horizontal inset spacing, a 20px shared `FileTypeIcon` in a 40px frame, 13px filename text, 10px secondary text, and a 12px Open action. It shows the basename and description, or the file type when no description exists; a trailing parenthesized suffix in the description is omitted, and hovering the card replaces that line with the Sidebar-preview action. Clicking the card or the left side of its split Open control previews the file in the right Sidebar. The chevron opens the standard menu for the Host default application plus Show in Finder on macOS, Show in File Explorer on Windows and WSL, or Open containing folder through the default Linux file manager. Matching inline-code references open the same source files without starting a browser download. Repeated declaration of a path selects its latest description before the closing reply.
 
 The `present` tool row shows running, delivered, failed, or interrupted status; expanding a settled row reveals its recorded result. The collapsible card grid retains every delivered file. Both menu actions share pending state and show progress, acknowledgement, or an action-specific retryable error. Desktop information is read when delivery cards appear and invalidated on connection replacement; responses from a replaced connection cannot publish metadata. Selecting a native menu action returns keyboard focus to the available Sidebar Open button. Pending actions close the menu until another explicit gesture. A missing desktop disables the Open menu; a failed desktop-information read offers Retry. It requires a desktop and a suitable default application on the serving Host; a remote browser does not open applications on its own device.
 
 ### The row
 
-The “Files changed” row lists successful file-tool mutations; final file deliveries require `present`. It uses CSS container-width bands to show a responsive prefix of up to six file chips. Flexbox shrinks and ellipsizes basename text, while CSS selects the matching localized `+ N files` label for omitted paths; the full path remains available as the title, and the row performs no JavaScript layout observation or horizontal scrolling.
+The “Files changed” row lists successful file-tool mutations; final file deliveries require `present`. The first file section starts 20px below the closing prose, a following explicit-delivery section starts 16px below the row, and the action footer starts 20px below the last file section. The row uses CSS container-width bands to show a responsive prefix of up to six file chips. Flexbox shrinks and ellipsizes basename text, while CSS selects the matching localized `+ N files` label for omitted paths; the full path remains available as the title, and the row performs no JavaScript layout observation or horizontal scrolling.
 
 ### Inline-code links
 
diff --git a/packages/client/ui-deliverables/README.zh.md b/packages/client/ui-deliverables/README.zh.md
index 8e801a164c..4454018906 100644
--- a/packages/client/ui-deliverables/README.zh.md
+++ b/packages/client/ui-deliverables/README.zh.md
@@ -30,13 +30,13 @@ kind: "package-reference"
 <a id="explicit-deliveries"></a>
 ### 显式交付
 
-Web 的 `standard`、`ptc` 与 `cordis` preset 提供 `present` 用于声明交付Session 文件系统可访问的最终文件，包括通过 Bash 创建的文件。创建文件后，以 `files: [{ path, description? }]` 调用。[present 工具](../../fs/tool-present/README.zh.md)拥有文件数量限制和 Session 声明。收尾 turn 把单个交付显示为横向占满内容区的卡片，把多个交付显示为每行最多两张卡片的网格。文件超过四个时，列表默认收起，并提供显示或隐藏完整列表的控件。每张卡片使用共享的 `FileTypeIcon`，显示 basename 与说明；没有说明时显示文件类型，说明末尾的括号后缀会被省略，悬停卡片时该行切换为侧栏预览提示。点击卡片或分段“打开”控件的左侧会在右侧 Sidebar 中预览文件；右侧箭头打开标准菜单，其中提供 Host 默认应用，以及 macOS 上的“在 Finder 中显示”、Windows 和 WSL 上的“在文件资源管理器中显示”或 Linux 默认文件管理器的“打开所在文件夹”。匹配的行内代码引用打开相同源文件，不触发浏览器下载。同一路径重复声明时，选择收尾回复之前最近一次的说明。
+Web 的 `standard`、`ptc` 与 `cordis` preset 提供 `present` 用于声明交付Session 文件系统可访问的最终文件，包括通过 Bash 创建的文件。创建文件后，以 `files: [{ path, description? }]` 调用。[present 工具](../../fs/tool-present/README.zh.md)拥有文件数量限制和 Session 声明。收尾 turn 把单个交付显示为横向占满内容区的卡片，把多个交付显示为间距 10px 的双列网格。文件超过四个时，列表默认收起，并提供显示或隐藏完整列表的控件。每张卡片高 60px，上下内边距为 8px、左右为 10px；40px 图标框内使用 20px 的共享 `FileTypeIcon`，文件名为 13px、次要文本为 10px，“打开”操作为 12px。卡片显示 basename 与说明；没有说明时显示文件类型，说明末尾的括号后缀会被省略，悬停卡片时该行切换为侧栏预览提示。点击卡片或分段“打开”控件的左侧会在右侧 Sidebar 中预览文件；右侧箭头打开标准菜单，其中提供 Host 默认应用，以及 macOS 上的“在 Finder 中显示”、Windows 和 WSL 上的“在文件资源管理器中显示”或 Linux 默认文件管理器的“打开所在文件夹”。匹配的行内代码引用打开相同源文件，不触发浏览器下载。同一路径重复声明时，选择收尾回复之前最近一次的说明。
 
 `present` 工具行显示正在交付、已交付、失败或中断状态；展开已结束的调用可查看其记录的结果。可折叠卡片网格保留全部交付文件。菜单中的两个操作共享等待状态，并显示进度、请求确认或各自可重试的错误。交付卡片出现时读取桌面信息，连接更换时清除缓存，旧连接的响应不能更新元数据。选择原生菜单操作后，键盘焦点回到仍可用的侧边栏“打开”按钮。等待操作完成时关闭菜单，用户再次点击才会打开。Host 没有桌面时禁用“打开”菜单；桌面信息读取失败时提供“重试”。服务 Host 必须具备桌面和合适的默认应用；远程浏览器不会打开其所在设备上的应用。
 
 ### 该行
 
-“本轮文件改动”行列出成功的文件工具修改；最终文件交付需要调用 `present`。该行通过 CSS 容器宽度档位响应式展示至多六个文件标签项。Flexbox 负责收缩文件名并用 ellipsis 省略，CSS 为未展示路径选择匹配的本地化 `+ N 个文件` 标签；完整路径仍保留在 `title` 中，该行不执行 JavaScript 布局观察，也不提供横向滚动。
+“本轮文件改动”行列出成功的文件工具修改；最终文件交付需要调用 `present`。首个文件区块位于收尾正文下方 20px，后续显式交付区块位于该行下方 16px，操作页脚位于最后一个文件区块下方 20px。该行通过 CSS 容器宽度档位响应式展示至多六个文件标签项。Flexbox 负责收缩文件名并用 ellipsis 省略，CSS 为未展示路径选择匹配的本地化 `+ N 个文件` 标签；完整路径仍保留在 `title` 中，该行不执行 JavaScript 布局观察，也不提供横向滚动。
 
 ### 行内代码链接
 
diff --git a/packages/client/ui-deliverables/src/client/Deliverables.module.css b/packages/client/ui-deliverables/src/client/Deliverables.module.css
index 5125edd381..c78725bdcb 100644
--- a/packages/client/ui-deliverables/src/client/Deliverables.module.css
+++ b/packages/client/ui-deliverables/src/client/Deliverables.module.css
@@ -1,27 +1,30 @@
 /** Delivery cards use one full-width row or a two-column, four-card summary. */
-.root { --deliverable-fill: var(--dsw-static-neutral-50); --deliverable-hover: var(--dsw-static-neutral-100); container-type: inline-size; display: flex; flex-direction: column; gap: 16px; min-width: 0; margin-top: 16px; }
+.root { --deliverable-fill: var(--dsw-static-neutral-50); --deliverable-hover: var(--dsw-static-neutral-100); container-type: inline-size; display: flex; flex-direction: column; gap: 16px; min-width: 0; margin-top: 4px; }
+/* The turn-tail gap alone separates adjacent file sections. The default top
+   margin remains when deliveries are the first file section after prose. */
+.root[data-after-produced-files='true'] { margin-top: 0; }
 :global(body[data-ds-dark-theme]) .root { --deliverable-fill: var(--dsw-static-neutral-850); --deliverable-hover: var(--dsw-static-neutral-800); }
 .hostStatus { display: flex; align-items: center; gap: 8px; font-size: 12px; line-height: 18px; color: var(--dsw-alias-label-secondary); }
-.presented { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 12px; min-width: 0; }
+.presented { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; min-width: 0; }
 .presented[data-single='true'] { grid-template-columns: minmax(0, 1fr); }
-.file { position: relative; box-sizing: border-box; display: flex; align-items: center; gap: 10px; min-width: 0; height: 72px; padding: 12px; overflow: hidden; border: 0.5px solid var(--dsw-alias-border-l1); border-radius: 18px; background: var(--deliverable-fill); color: var(--dsw-alias-label-primary); transition: background-color 120ms ease; }
+.file { position: relative; box-sizing: border-box; display: flex; align-items: center; gap: 10px; min-width: 0; height: 60px; padding: 8px 10px; overflow: hidden; border: 0.5px solid var(--dsw-alias-border-l1); border-radius: 18px; background: var(--deliverable-fill); color: var(--dsw-alias-label-primary); transition: background-color 120ms ease; }
 .file:hover { background: var(--deliverable-hover); }
 .cardPreview { position: absolute; z-index: 1; inset: 0; width: 100%; padding: 0; border: 0; border-radius: inherit; background: transparent; cursor: pointer; }
 .cardPreview:focus-visible { outline: none; box-shadow: inset 0 0 0 2px var(--dsw-alias-brand-primary); }
-.fileIcon { position: relative; z-index: 2; flex: 0 0 auto; display: grid; place-items: center; width: 48px; height: 48px; overflow: hidden; pointer-events: none; border: 0.5px solid var(--dsw-alias-border-l2); border-radius: 12px; background: var(--deliverable-fill); color: var(--dsw-alias-link); }
+.fileIcon { position: relative; z-index: 2; box-sizing: border-box; flex: 0 0 auto; display: grid; place-items: center; width: 40px; height: 40px; overflow: hidden; pointer-events: none; border: 0.5px solid var(--dsw-alias-border-l1); border-radius: 10px; background: var(--deliverable-fill); color: var(--dsw-alias-link); }
 .fileBody { position: relative; z-index: 2; display: flex; flex: 1; align-items: center; justify-content: space-between; gap: 12px; min-width: 0; pointer-events: none; }
 .details { display: flex; flex: 1; flex-direction: column; justify-content: center; gap: 2px; min-width: 0; }
-.fileName { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 14px; font-weight: 500; line-height: 22px; }
-.description { overflow: hidden; color: var(--dsw-alias-label-tertiary); font-size: 12px; font-weight: 400; line-height: 18px; text-overflow: ellipsis; white-space: nowrap; }
+.fileName { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 13px; font-weight: 500; line-height: 20px; }
+.description { overflow: hidden; color: var(--dsw-alias-label-tertiary); font-size: 10px; font-weight: 400; line-height: 16px; text-overflow: ellipsis; white-space: nowrap; }
 .description[data-error='true'] { color: var(--dsw-alias-state-error-primary); }
 .previewHint { display: none; }
 .file:hover .secondaryText { display: none; }
 .file:hover .previewHint { display: inline; }
-.split { display: inline-flex; flex: none; align-items: stretch; box-sizing: border-box; height: 32px; overflow: hidden; pointer-events: auto; border: 0.5px solid var(--dsw-alias-border-l3); border-radius: 12px; background: var(--dsw-alias-button-floating-fill); }
+.split { display: inline-flex; flex: none; align-items: stretch; box-sizing: border-box; height: 28px; overflow: hidden; pointer-events: auto; border: 0.5px solid var(--dsw-alias-border-l3); border-radius: 10px; background: var(--dsw-alias-button-floating-fill); }
 .menuAnchor { align-self: stretch; }
 .open, .chevron { display: inline-flex; align-items: center; justify-content: center; border: 0; background: none; color: var(--dsw-alias-label-primary); cursor: pointer; font-family: var(--dsw-font-family); }
-.open { padding: 5px 10px; font-size: 14px; line-height: 22px; }
-.chevron { padding: 5px 6px; border-left: 0.5px solid var(--dsw-alias-border-l3); color: var(--dsw-alias-label-secondary); }
+.open { padding: 4px 8px; font-size: 12px; line-height: 18px; }
+.chevron { padding: 4px 5px; border-left: 0.5px solid var(--dsw-alias-border-l3); color: var(--dsw-alias-label-secondary); }
 .open:hover, .open:focus-visible, .chevron:hover:not(:disabled), .chevron:focus-visible { background: var(--dsw-alias-interactive-bg-hover); }
 .chevron:disabled { color: var(--dsw-alias-label-dimmed); cursor: not-allowed; }
 .menuActionIcon { display: block; width: 16px; height: 16px; }
diff --git a/packages/client/ui-deliverables/src/client/Deliverables.tsx b/packages/client/ui-deliverables/src/client/Deliverables.tsx
index dac421a577..6099cfdf72 100644
--- a/packages/client/ui-deliverables/src/client/Deliverables.tsx
+++ b/packages/client/ui-deliverables/src/client/Deliverables.tsx
@@ -58,7 +58,10 @@ export function Deliverables({ matched, openFile, t, sessionId, useSessions, ope
   }, [matched.presented.length, host, reloadPresentedHost])
   return <>
     {matched.produced.length > 0 && <ProducedFiles matched={matched.produced} openFile={openFile} t={t} />}
-    {matched.presented.length > 0 && <div className={css.root}>
+    {matched.presented.length > 0 && <div
+      className={css.root}
+      data-after-produced-files={matched.produced.length > 0 || undefined}
+    >
       {host === 'error' && <div className={css.hostStatus}>
         <span>{t('presented.hostError')}</span>
         <Button size="sm" onClick={() => { void reloadPresentedHost() }}>{t('presented.retry')}</Button>
diff --git a/packages/client/ui-deliverables/src/client/PresentedFileCard.tsx b/packages/client/ui-deliverables/src/client/PresentedFileCard.tsx
index ef848827e8..5466473999 100644
--- a/packages/client/ui-deliverables/src/client/PresentedFileCard.tsx
+++ b/packages/client/ui-deliverables/src/client/PresentedFileCard.tsx
@@ -51,7 +51,7 @@ export function PresentedFileCard({ file, cwd, phase, host, onPreview, onAction,
   return <div className={css.file} data-presented-file>
     <button type="button" className={css.cardPreview} title={resolveWorkspacePath(cwd, file.path)}
       aria-label={t('presented.previewCard', { name: file.path })} onClick={onPreview} />
-    <span className={css.fileIcon}><FileTypeIcon path={file.path} /></span>
+    <span className={css.fileIcon}><FileTypeIcon path={file.path} size={20} /></span>
     <div className={css.fileBody}>
       <div className={css.details}>
         <span className={css.fileName}>{name}</span>
diff --git a/packages/client/ui-deliverables/src/client/ProducedFiles.module.css b/packages/client/ui-deliverables/src/client/ProducedFiles.module.css
index 19cc03c126..8bccbf3b5c 100644
--- a/packages/client/ui-deliverables/src/client/ProducedFiles.module.css
+++ b/packages/client/ui-deliverables/src/client/ProducedFiles.module.css
@@ -5,7 +5,7 @@
   grid-template-columns: max-content minmax(0, 1fr);
   align-items: start;
   column-gap: 8px;
-  margin-top: 16px;
+  margin-top: 4px;
   font-size: 13px;
   line-height: 22px;
 }
diff --git a/packages/client/ui-deliverables/tests/produced-files.client.spec.tsx b/packages/client/ui-deliverables/tests/produced-files.client.spec.tsx
index 6a70186f27..c4c00a5f5a 100644
--- a/packages/client/ui-deliverables/tests/produced-files.client.spec.tsx
+++ b/packages/client/ui-deliverables/tests/produced-files.client.spec.tsx
@@ -663,7 +663,16 @@ it('shows descriptions and falls back to file metadata without hiding extensionl
   expect(view.getByText('report.txt')).toBeTruthy()
 })
 
-it('distinguishes PDF, Word, Markdown, and code files with full-size decorative card icons', () => {
+it('marks delivery cards that directly follow the produced-files row', () => {
+  const shared = { ...openProps(), openFile: () => {}, sessionId: SessionId('session'), t: makeTranslate(en) }
+  const presented = [{ path: 'report.txt', seq: 2, index: 0 }]
+  const view = render(<Deliverables {...shared} matched={{ produced: ['source.ts'], presented }} />)
+  expect(view.getByText('Files changed')).toBeTruthy()
+  expect(view.container.querySelector('[data-presented-files-row]')?.parentElement
+    ?.getAttribute('data-after-produced-files')).toBe('true')
+})
+
+it('distinguishes PDF, Word, Markdown, and code files with compact decorative card icons', () => {
   const paths = ['report.pdf', 'report.docx', 'README.md', 'index.tsx']
   const view = render(<Deliverables {...openProps()} matched={{ produced: [], presented:
     paths.map((path, index) => ({ path, seq: 2, index })),
@@ -671,7 +680,7 @@ it('distinguishes PDF, Word, Markdown, and code files with full-size decorative
   const icons = [...view.container.querySelectorAll('[data-presented-file]')].map((card) => {
     const icon = card.querySelector('svg')!
     expect(icon.getAttribute('aria-hidden')).toBe('true')
-    expect(icon.getAttribute('width')).toBe('28')
+    expect(icon.getAttribute('width')).toBe('20')
     return icon.innerHTML
   })
   expect(new Set(icons).size).toBe(paths.length)
diff --git a/packages/client/ui-deliverables/tests/turn-tail-spacing.client.spec.ts b/packages/client/ui-deliverables/tests/turn-tail-spacing.client.spec.ts
new file mode 100644
index 0000000000..eaf8fb13f9
--- /dev/null
+++ b/packages/client/ui-deliverables/tests/turn-tail-spacing.client.spec.ts
@@ -0,0 +1,24 @@
+/** Source checks for the produced-files and explicit-delivery layout. */
+import { readFileSync } from 'node:fs'
+import { fileURLToPath } from 'node:url'
+import { describe, expect, it } from 'vitest'
+
+const read = (name: string): string =>
+  readFileSync(fileURLToPath(new URL(`../src/client/${name}`, import.meta.url)), 'utf8')
+
+describe('deliverables layout', () => {
+  it('keeps the first file-section offset and removes the second', () => {
+    expect(read('ProducedFiles.module.css')).toMatch(/\.root\s*\{[^}]*margin-top:\s*4px/s)
+    const deliveries = read('Deliverables.module.css')
+    expect(deliveries).toMatch(/\.root\s*\{[^}]*margin-top:\s*4px/s)
+    expect(deliveries).toMatch(/\.root\[data-after-produced-files='true'\]\s*\{\s*margin-top:\s*0;\s*\}/)
+    expect(deliveries).toMatch(/\.file\s*\{[^}]*height:\s*60px;[^}]*padding:\s*8px 10px/s)
+    expect(deliveries).toMatch(/\.fileIcon\s*\{[^}]*box-sizing:\s*border-box;[^}]*width:\s*40px;[^}]*height:\s*40px/s)
+    expect(deliveries).toMatch(/\.fileIcon\s*\{[^}]*border:\s*0\.5px solid var\(--dsw-alias-border-l1\)/s)
+    expect(read('PresentedFileCard.tsx')).toMatch(/<FileTypeIcon path=\{file\.path\} size=\{20\} \/>/)
+    expect(deliveries).toMatch(/\.fileName\s*\{[^}]*font-size:\s*13px;[^}]*line-height:\s*20px/s)
+    expect(deliveries).toMatch(/\.description\s*\{[^}]*font-size:\s*10px;[^}]*line-height:\s*16px/s)
+    expect(deliveries).toMatch(/\.open\s*\{[^}]*padding:\s*4px 8px;[^}]*font-size:\s*12px;[^}]*line-height:\s*18px/s)
+    expect(deliveries).toMatch(/\.presented\s*\{[^}]*gap:\s*10px/s)
+  })
+})
diff --git a/packages/client/ui-message-feedback/README.i18n.yaml b/packages/client/ui-message-feedback/README.i18n.yaml
index 4e2c01b49d..1b0c695373 100644
--- a/packages/client/ui-message-feedback/README.i18n.yaml
+++ b/packages/client/ui-message-feedback/README.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write packages/client/ui-message-feedback/README.md
-README.md: 8ffcf87a59ec95fe783a0379423b93d4bf965a3e
-README.zh.md: a29448eaaddf0f089d8fc12c1315732fd13fc304
+README.md: b37278e8d115a2ad61bb17ef8d884b0d888cd6a7
+README.zh.md: 89183cfa8f3321ec591594ea7e4f091cdf3ff903
diff --git a/packages/client/ui-message-feedback/README.md b/packages/client/ui-message-feedback/README.md
index 8ffcf87a59..b37278e8d1 100644
--- a/packages/client/ui-message-feedback/README.md
+++ b/packages/client/ui-message-feedback/README.md
@@ -1,5 +1,5 @@
 ---
-description: "The Web feedback surface: the Like/Dislike pair in the finalized assistant message's action row, the feedback dialog behind Dislike and `/feedback`, and the acknowledgement toast; for users and maintainers of the feedback experience."
+description: "The Web feedback surface: the Like/Dislike pair in the finalized assistant message's action row, the feedback dialog behind both ratings and `/feedback`, and its acknowledgement and failure toasts; for users and maintainers of the feedback experience."
 kind: "package-reference"
 ---
 
@@ -9,7 +9,7 @@ English | [中文](README.zh.md)
 
 ## Summary
 
-This package is the Web GUI's feedback surface: the Like/Dislike pair in the finalized assistant message's action strip, the feedback dialog with its acknowledgement toast in the composer overlay, and a decoration that opens the dialog from a bare `/feedback`. Like records at once and shows the toast; Dislike opens the dialog, which collects a category and an optional description. One surface per Session backs every entry, so a single list read seeds the whole transcript and one dialog serves the Session and its messages. Ratings, categories, and notes are log-only Session events that never enter model context.
+This package is the Web GUI's feedback surface: the Like/Dislike pair in the finalized assistant message's action strip, the feedback dialog with its acknowledgement and failure toasts in the composer overlay, and a decoration that opens the dialog from a bare `/feedback`. Like and Dislike both open the dialog, which collects a category and an optional description before recording the selected rating. One surface per Session backs every entry, so a single list read seeds the whole transcript and one dialog serves the Session and its messages. Ratings, categories, and notes are log-only Session events that never enter model context.
 
 ## Table of Contents
 
@@ -25,11 +25,11 @@ This package is the Web GUI's feedback surface: the Like/Dislike pair in the fin
 <a id="use-this-package"></a>
 ## Use this package
 
-Mount this plugin alongside `ui-conversation` and `ui-commands`; the Like/Dislike pair then appears in the action row of each turn's closing assistant message, between copy and branch, and the Feedback row of the composer menu opens the dialog. A recorded rating shows the filled glyph and stays visible without hover. Like records immediately and the toast thanks the user for the feedback. Dislike opens the dialog: seven category chips and a detail box, both optional; Submit records a negative judgment carrying whatever was filled in, and the conversation log travels with every feedback event. Clicking the recorded rating retracts it. A bare `/feedback`, picked from the menu or typed and sent without text, opens the same dialog for the Session; `/feedback <text>` keeps the Host command path and its acknowledgement row.
+Mount this plugin alongside `ui-conversation` and `ui-commands`; the Like/Dislike pair then appears in the action row of each turn's closing assistant message, between copy and branch, and the Feedback row of the composer menu opens the dialog. A recorded rating shows the filled glyph and stays visible without hover. Like and Dislike both open the dialog: seven category chips and a detail box are optional, and Submit records the selected judgment with whatever was filled in before the toast thanks the user; the conversation log travels with every feedback event. Clicking the recorded rating retracts it without opening the dialog. A bare `/feedback`, picked from the menu or typed and sent without text, opens the same dialog for the Session; `/feedback <text>` keeps the Host command path and its acknowledgement row.
 
 ### Failures
 
-A rating or list-load failure shows inline in the row; a submission failure shows inside the dialog, which stays open so the draft can be corrected. Only finalized messages reach the message entry — an interruption-frozen partial carries no `messageId` and therefore no feedback controls.
+A rating or list-load failure shows inline in the row; a submission failure shows in a warning toast while the dialog stays open so the draft can be corrected. Only finalized messages reach the message entry — an interruption-frozen partial carries no `messageId` and therefore no feedback controls.
 
 -----
 
@@ -41,7 +41,7 @@ A rating or list-load failure shows inline in the row; a submission failure show
 
 The package contributes the `feedback` entry (order 10) of `conversation.chat.assistant-actions`, declared by ui-conversation and rendered inside the finalized assistant message's IconActions row, and the `feedback-dialog` entry (order 2) of `conversation.input.overlay`, which renders the Modal and Toast primitives through body portals and centers the toast over the composer card it mounts inside. The `/feedback` decoration is an `action` registered through `ctx.commandUi.decorate`, so a menu pick or a bare Enter consumes the trigger token and opens the dialog while an argued line still reaches the Host command.
 
-Per Session, one `MessageFeedbackController` backs every message control and one `FeedbackDialogController` owns the dialog draft, the submission, and the toast sequence. The message controller reads `messageFeedback.list` once, deferred to the first hover or focus rather than fired on mount, and serializes mutations so each carries the version last observed; a `version-conflict` reply carries the authoritative item and reconciles the view without refetching. `toggle` reports the rating now committed, so the row acknowledges a recorded Like and not a retraction. The dialog controller submits by target: a message target puts a negative judgment with the dialog's note and category through the message controller, and the Session target records through `ctx.remote.sessionFeedback`. Success closes the draft and raises the toast; a late success from a superseded draft raises the toast without closing the new draft; a failure keeps the draft open with its code.
+Per Session, one `MessageFeedbackController` backs every message control and one `FeedbackDialogController` owns the dialog draft, the submission, and the toast sequence. The message controller reads `messageFeedback.list` once, deferred to the first hover or focus rather than fired on mount, and serializes mutations so each carries the version last observed; a `version-conflict` reply carries the authoritative item and reconciles the view without refetching. Before either rating action proceeds, the row checks the committed item: the matching rating calls `retract`, which rechecks the rating in the serialized queue and becomes a no-op after a concurrent change, while any other state opens the dialog with the requested rating. The dialog controller submits by target: a message target puts that rating with the dialog's note and category through the message controller, and the Session target records through `ctx.remote.sessionFeedback`. Success closes the draft and raises the acknowledgement toast; a late success from a superseded draft raises that toast without closing the new draft; a failure keeps the draft open and raises a longer-lived warning toast.
 
 </details>
 
@@ -77,7 +77,6 @@ None; feedback mutations leave the model-visible history unchanged.
 These limits define the current feedback surface. They are current package constraints, not a general rating comparison or a task backlog.
 
 - **Note size is a Host policy** — the deployment configures `maxNoteBytes` (8192 in the Web bundle) and the Host rejects an oversized note with `note-too-large`. The dialog does not pre-check the limit, so an oversized description for a message fails on submit rather than while typing; a Session remark has no bound.
-- **No note on a Like** — only the Dislike dialog collects a category and description; a Like records the bare judgment.
 - **No cross-tab push** — a second tab's rating becomes visible on reconnect or on the next conflict reply, not immediately; the controller does not consume feedback log events.
 - **Chat view only** — the trajectory and waterfall views render no feedback controls even though their assistant nodes carry the same `messageId`.
 
diff --git a/packages/client/ui-message-feedback/README.zh.md b/packages/client/ui-message-feedback/README.zh.md
index a29448eaad..89183cfa8f 100644
--- a/packages/client/ui-message-feedback/README.zh.md
+++ b/packages/client/ui-message-feedback/README.zh.md
@@ -1,5 +1,5 @@
 ---
-description: "Web 反馈界面：已定稿助手消息动作行中的 Like/Dislike 对、点踩与 `/feedback` 背后的反馈弹窗，以及确认 toast；供反馈体验的用户与维护者阅读。"
+description: "Web 反馈界面：已定稿助手消息动作行中的 Like/Dislike 对、两种评分与 `/feedback` 共用的反馈弹窗，以及确认和失败 toast；供反馈体验的用户与维护者阅读。"
 kind: "package-reference"
 ---
 
@@ -9,7 +9,7 @@ kind: "package-reference"
 
 ## 概述
 
-本包是 Web GUI 的反馈界面：已定稿助手消息动作条中的 Like/Dislike 对、输入框浮层中的反馈弹窗及其确认 toast，以及让不带文本的 `/feedback` 打开弹窗的装饰。点赞立即记录并显示 toast；点踩打开弹窗，弹窗收集分类与可选描述。每个 Session 一个 surface 支撑所有条目，因此一次列表读取即可填充整段对话，一个弹窗同时服务 Session 与其消息。评分、分类与备注是仅写日志的 Session 事件，绝不进入模型上下文。
+本包是 Web GUI 的反馈界面：已定稿助手消息动作条中的 Like/Dislike 对、输入框浮层中的反馈弹窗及其确认与失败 toast，以及让不带文本的 `/feedback` 打开弹窗的装饰。点赞和点踩都会打开弹窗，先收集分类与可选描述，再记录所选评分。每个 Session 一个 surface 支撑所有条目，因此一次列表读取即可填充整段对话，一个弹窗同时服务 Session 与其消息。评分、分类与备注是仅写日志的 Session 事件，绝不进入模型上下文。
 
 ## 目录
 
@@ -25,11 +25,11 @@ kind: "package-reference"
 <a id="use-this-package"></a>
 ## 使用本包
 
-与 `ui-conversation`、`ui-commands` 一起挂载本插件；Like/Dislike 对随即出现在每个轮次收尾助手消息的动作行中，位于复制与分支之间，输入框菜单里的「反馈」行则打开弹窗。已记录的评分显示实心图标，不需要悬停也一直可见。点赞立即记录，toast 显示感谢反馈。点踩打开弹窗：七个分类标签和一个详情框，都可不填；提交会记录一条带上所填内容的差评，对话日志随每个反馈事件一起投递。再次点击已记录的评分会撤回它。不带文本的 `/feedback`，无论是从菜单选中还是直接输入后发送，都会为 Session 打开同一个弹窗；`/feedback <text>` 仍走宿主命令路径并显示确认行。
+与 `ui-conversation`、`ui-commands` 一起挂载本插件；Like/Dislike 对随即出现在每个轮次收尾助手消息的动作行中，位于复制与分支之间，输入框菜单里的「反馈」行则打开弹窗。已记录的评分显示实心图标，不需要悬停也一直可见。点赞和点踩都会打开弹窗：七个分类标签和一个详情框都可不填；提交后才会记录带所填内容的对应评分并弹出感谢 toast，对话日志随每个反馈事件一起投递。再次点击已记录的评分会直接撤回，不打开弹窗。不带文本的 `/feedback`，无论是从菜单选中还是直接输入后发送，都会为 Session 打开同一个弹窗；`/feedback <text>` 仍走宿主命令路径并显示确认行。
 
 ### 失败
 
-评分或列表加载失败在行内展示；提交失败在弹窗内展示，弹窗保持打开以便修正草稿。只有已定稿的消息能到达消息条目——被中断冻结的部分输出不带 `messageId`，因此没有反馈控件。
+评分或列表加载失败在行内展示；提交失败通过警告 toast 展示，弹窗保持打开以便修正草稿。只有已定稿的消息能到达消息条目——被中断冻结的部分输出不带 `messageId`，因此没有反馈控件。
 
 -----
 
@@ -41,7 +41,7 @@ kind: "package-reference"
 
 本包贡献 `conversation.chat.assistant-actions` 的 `feedback` 条目（order 10），由 ui-conversation 声明并渲染在已定稿助手消息的 IconActions 行内；同时贡献 `conversation.input.overlay` 的 `feedback-dialog` 条目（order 2），它通过 body portal 渲染 Modal 与 Toast 基元，并让 toast 以其所在的输入框卡片为中心。`/feedback` 装饰是经 `ctx.commandUi.decorate` 注册的 `action`，因此菜单选中或不带参数的回车会消费触发 token 并打开弹窗，而带参数的命令行仍到达宿主命令。
 
-每个 Session 有一个 `MessageFeedbackController` 支撑所有消息控件，以及一个 `FeedbackDialogController` 拥有弹窗草稿、提交与 toast 序号。消息控制器只读取一次 `messageFeedback.list`，且延迟到首次 hover 或 focus 才发起，而非挂载时触发；变更串行执行，每次都携带最后观察到的版本，`version-conflict` 响应带回权威条目，据此对账视图而不重新拉取。`toggle` 会报告提交后的评分，因此该行只对记录成功的点赞做确认，撤回不做。弹窗控制器按目标提交：消息目标通过消息控制器 put 一条带弹窗备注与分类的差评，Session 目标通过 `ctx.remote.sessionFeedback` 记录。成功会关闭草稿并弹出 toast；被替换的旧草稿迟到的成功只弹 toast、不关闭新草稿；失败让草稿保持打开并带上失败码。
+每个 Session 有一个 `MessageFeedbackController` 支撑所有消息控件，以及一个 `FeedbackDialogController` 拥有弹窗草稿、提交与 toast 序号。消息控制器只读取一次 `messageFeedback.list`，且延迟到首次 hover 或 focus 才发起，而非挂载时触发；变更串行执行，每次都携带最后观察到的版本，`version-conflict` 响应带回权威条目，据此对账视图而不重新拉取。任一评分操作执行前，该行都会检查已提交条目：评分相同则调用 `retract`，它会在串行队列内重新检查评分并在并发变更后变为无操作；其他状态则携带所选评分打开弹窗。弹窗控制器按目标提交：消息目标通过消息控制器 put 一条带弹窗备注与分类的对应评分，Session 目标通过 `ctx.remote.sessionFeedback` 记录。成功会关闭草稿并弹出确认 toast；被替换的旧草稿迟到的成功只弹确认 toast、不关闭新草稿；失败会保留弹窗并弹出停留时间更长的警告 toast。
 
 </details>
 
@@ -77,7 +77,6 @@ kind: "package-reference"
 这些限制界定了当前反馈界面。它们是当前包约束，不是通用评分对比或任务积压。
 
 - **备注大小是宿主策略**——部署方配置 `maxNoteBytes`（Web bundle 中为 8192），超长备注由宿主以 `note-too-large` 拒绝。弹窗不预先校验该上限，因此针对消息的超长描述在提交时才失败，而不是在输入过程中；Session 级备注没有上限。
-- **点赞不带备注**——只有点踩弹窗收集分类与描述；点赞只记录判断本身。
 - **无跨标签页推送**——另一个标签页的评分要等到重连或下一次冲突响应才可见，不会立即出现；控制器不消费反馈日志事件。
 - **仅限对话视图**——trajectory 与 waterfall 视图不渲染反馈控件，尽管它们的助手节点也带有相同的 `messageId`。
 
diff --git a/packages/client/ui-message-feedback/package.json b/packages/client/ui-message-feedback/package.json
index 5904d1a096..ab137711e3 100644
--- a/packages/client/ui-message-feedback/package.json
+++ b/packages/client/ui-message-feedback/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-message-feedback",
-  "description": "The Web feedback surface: per-message Like/Dislike in the assistant-message action strip and the feedback dialog behind Dislike and /feedback, backed by the messageFeedback and sessionFeedback Host Remotes",
+  "description": "The Web feedback surface: per-message Like/Dislike in the assistant-message action strip and the feedback dialog behind both ratings and /feedback, backed by the messageFeedback and sessionFeedback Host Remotes",
   "version": "0.1.5-rc.1",
   "publishConfig": {
     "access": "public"
diff --git a/packages/client/ui-message-feedback/src/client/FeedbackDialog.module.css b/packages/client/ui-message-feedback/src/client/FeedbackDialog.module.css
index c5393561d5..bd0fe184c6 100644
--- a/packages/client/ui-message-feedback/src/client/FeedbackDialog.module.css
+++ b/packages/client/ui-message-feedback/src/client/FeedbackDialog.module.css
@@ -82,14 +82,6 @@
   box-shadow: 0 0 0 1px var(--dsw-alias-border-l3);
 }
 
-.failure {
-  display: block;
-  margin-top: 8px;
-  color: var(--dsw-alias-label-tertiary);
-  font-size: 13px;
-  line-height: 20px;
-}
-
 .submit {
   width: 100%;
   height: 44px;
diff --git a/packages/client/ui-message-feedback/src/client/FeedbackDialog.tsx b/packages/client/ui-message-feedback/src/client/FeedbackDialog.tsx
index c431848d2c..218da8608e 100644
--- a/packages/client/ui-message-feedback/src/client/FeedbackDialog.tsx
+++ b/packages/client/ui-message-feedback/src/client/FeedbackDialog.tsx
@@ -1,5 +1,5 @@
 /**
- * The feedback dialog and its acknowledgement toast, rendered as one entry
+ * The feedback dialog and its acknowledgement and failure toasts, rendered as one entry
  * of `conversation.input.overlay` so each Session owns exactly one of each.
  * The Modal and the Toast both portal to `document.body`; the overlay slot
  * only supplies the per-session controller and the composer card the toast
@@ -8,7 +8,9 @@
  */
 
 import { useCallback, useEffect, useLayoutEffect, useRef, useState } from 'react'
-import { Button, IconCheckOutline16, Modal, Toast } from '@deepseek-ai/dsh-client-ui-primitives'
+import {
+  Button, IconCheckOutline16, IconWarningOutline16, Modal, Toast,
+} from '@deepseek-ai/dsh-client-ui-primitives'
 import type { FeedbackCategory } from '@deepseek-ai/dsh-command-feedback/types'
 import type { FeedbackDialogProps } from './slots.ts'
 import css from './FeedbackDialog.module.css'
@@ -38,9 +40,11 @@ const FAILURE_COPY: Partial<Record<string, 'error.conflict' | 'error.noteTooLarg
 /**
  * Render one Session's feedback dialog and toast.
  * @param props - the dialog hook, the draft verbs, and the locale seat.
- * @returns the modal while a target is open, the toast while one is showing.
+ * @returns the modal while a target is open and either toast while it is showing.
  */
-export function FeedbackDialog({ useDialog, edit, submit, dismiss, dismissToast, t }: FeedbackDialogProps) {
+export function FeedbackDialog({
+  useDialog, edit, submit, dismiss, dismissFailure, dismissToast, t,
+}: FeedbackDialogProps) {
   const state = useDialog(s => s)
   // The toast centers over the composer card this entry renders inside of.
   const probeRef = useRef<HTMLSpanElement>(null)
@@ -53,12 +57,14 @@ export function FeedbackDialog({ useDialog, edit, submit, dismiss, dismissToast,
   // A toast retires with the entry that showed it: the Toast's own timer dies
   // on unmount, and the Session's controller must not replay it on return.
   useEffect(() => () => { dismissToast(toast) }, [dismissToast, toast])
-  const failure = state.failure === null ? null : t(FAILURE_COPY[state.failure] ?? 'error.generic')
+  const failureCode = state.failure
+  const failure = failureCode === null ? null : t(FAILURE_COPY[failureCode] ?? 'error.generic')
+  const onFailureDone = useCallback(() => { dismissFailure() }, [dismissFailure])
 
   return (
     <>
       <span ref={probeRef} hidden />
-      {toast > 0 && (
+      {toast > 0 && failure === null && (
         <Toast
           key={toast}
           text={t('toast.recorded')}
@@ -67,6 +73,16 @@ export function FeedbackDialog({ useDialog, edit, submit, dismiss, dismissToast,
           onDone={onToastDone}
         />
       )}
+      {failure !== null && (
+        <Toast
+          key={`failure-${failureCode}`}
+          text={failure}
+          icon={<IconWarningOutline16 />}
+          anchor={card}
+          holdMs={6000}
+          onDone={onFailureDone}
+        />
+      )}
       <Modal
         open={state.target !== null}
         title={t('dialog.title')}
@@ -106,7 +122,6 @@ export function FeedbackDialog({ useDialog, edit, submit, dismiss, dismissToast,
           readOnly={state.submitting}
           onChange={(event) => { edit({ text: event.target.value }) }}
         />
-        {failure !== null && <span className={css.failure} role="status">{failure}</span>}
       </Modal>
     </>
   )
diff --git a/packages/client/ui-message-feedback/src/client/MessageFeedbackActions.tsx b/packages/client/ui-message-feedback/src/client/MessageFeedbackActions.tsx
index 607ff291c9..842128e766 100644
--- a/packages/client/ui-message-feedback/src/client/MessageFeedbackActions.tsx
+++ b/packages/client/ui-message-feedback/src/client/MessageFeedbackActions.tsx
@@ -1,10 +1,9 @@
 /**
  * Per-message feedback controls: the Like/Dislike pair inside the assistant
- * message's IconActions row, between copy and branch. Like records at once
- * and raises the Session's acknowledgement toast; Dislike opens the Session's
- * feedback dialog, whose submission records the negative judgment with its
- * category and text. Clicking the recorded rating retracts it. A recorded
- * rating shows the filled glyph so the signal survives a pointer leaving the row.
+ * message's IconActions row, between copy and branch. Either rating opens the
+ * Session's feedback dialog, whose submission records that judgment with its
+ * category and text. Clicking the recorded rating retracts it. A recorded rating
+ * shows the filled glyph so the signal survives a pointer leaving the row.
  * @module @deepseek-ai/dsh-client-ui-message-feedback/client/MessageFeedbackActions
  */
 
@@ -12,6 +11,7 @@ import { useCallback, useEffect, useRef, useState } from 'react'
 import {
   IconDislikeFill16, IconDislikeOutline16, IconLikeFill16, IconLikeOutline16, Tooltip,
 } from '@deepseek-ai/dsh-client-ui-primitives'
+import type { MessageFeedbackRating } from '@deepseek-ai/dsh-message-feedback/types'
 import type { MessageFeedbackActionFailure } from './controller.ts'
 import type { MessageFeedbackActionProps } from './slots.ts'
 import css from './MessageFeedbackActions.module.css'
@@ -23,7 +23,7 @@ import css from './MessageFeedbackActions.module.css'
  * @returns the rating buttons with any failure notice beside them.
  */
 export function MessageFeedbackActions({
-  messageId, ensure, current, toggle, openDialog, acknowledge, useFeedback, t,
+  messageId, ensure, current, retract, openDialog, useFeedback, t,
 }: MessageFeedbackActionProps) {
   const item = useFeedback(view => view.items.get(messageId))
   const loadFailed = useFeedback(view => view.status === 'error')
@@ -47,43 +47,29 @@ export function MessageFeedbackActions({
     return result.error.code === 'version-conflict' ? t('error.conflict') : t('error.generic')
   }, [t])
 
-  // The controller decides record-vs-retract from the committed item, so a
-  // click that lands before the first list read still toggles the stored
-  // value; the reply says which happened, and only a recording is acknowledged.
-  const onLike = useCallback(() => {
-    setPending(true)
-    setFailure(null)
-    void toggle(messageId, 'positive').then((result) => {
-      if (!alive.current) return
-      setPending(false)
-      if (!result.ok) {
-        setFailure(errorCopy(result))
-        return
-      }
-      if (result.rating === 'positive') acknowledge()
-    })
-  }, [acknowledge, errorCopy, messageId, toggle])
-
-  // A recorded Dislike retracts on click; otherwise the dialog collects the
-  // reason and records the judgment on submit. The decision waits for the
+  // A recorded rating retracts on click; either unrecorded rating opens the
+  // dialog and records only after submission. The decision waits for the
   // seeding read, so a click on a cold row still sees the stored judgment.
-  const onDislike = useCallback(() => {
+  const choose = useCallback((nextRating: MessageFeedbackRating) => {
     setPending(true)
     setFailure(null)
     void ensure().then((loaded) => {
       if (!alive.current) return
-      if (!loaded.ok || current(messageId)?.rating !== 'negative') {
+      if (!loaded.ok || current(messageId)?.rating !== nextRating) {
         setPending(false)
-        openDialog(messageId)
+        openDialog(messageId, nextRating)
         return
       }
-      void toggle(messageId, 'negative').then((result) => {
+      void retract(messageId, nextRating).then((result) => {
         if (!alive.current) return
         setPending(false)
         if (!result.ok) setFailure(errorCopy(result))
       })
     })
-  }, [current, ensure, errorCopy, messageId, openDialog, toggle])
+  }, [current, ensure, errorCopy, messageId, openDialog, retract])
+
+  const onLike = useCallback(() => { choose('positive') }, [choose])
+  const onDislike = useCallback(() => { choose('negative') }, [choose])
 
   const likeLabel = rating === 'positive' ? t('action.likeActive') : t('action.like')
   const dislikeLabel = rating === 'negative' ? t('action.dislikeActive') : t('action.dislike')
diff --git a/packages/client/ui-message-feedback/src/client/controller.ts b/packages/client/ui-message-feedback/src/client/controller.ts
index 0342423089..9a47b63e73 100644
--- a/packages/client/ui-message-feedback/src/client/controller.ts
+++ b/packages/client/ui-message-feedback/src/client/controller.ts
@@ -38,11 +38,6 @@ export interface MessageFeedbackActionFailure {
 /** Settled action shape rendered by the message-level controls. */
 export type MessageFeedbackActionResult = { ok: true } | MessageFeedbackActionFailure
 
-/** A settled toggle, carrying the rating now committed so the control can tell a record from a retraction. */
-export type MessageFeedbackToggleResult =
-  | { ok: true; rating: MessageFeedbackRating | null }
-  | MessageFeedbackActionFailure
-
 // `Object.freeze` does not protect a Map: `set`/`delete` write internal slots,
 // not properties. Immutability here is by discipline instead — the view type is
 // ReadonlyMap and every publish hands over a freshly built Map that this class
@@ -176,24 +171,19 @@ export class MessageFeedbackController implements HostObservable<MessageFeedback
   }
 
   /**
-   * Replace one message's rating with the opposite judgment, or retract it when
-   * the committed rating already matches. The decision reads the committed item
-   * inside the serialized mutation, so a click that lands before the first list
-   * read still toggles against the stored value rather than the empty view a
-   * cold control rendered. A replacement stores the bare judgment; the note
-   * and category of the judgment it replaces do not carry over.
+   * Retract one message's matching committed rating. The serialized operation
+   * rechecks the current item and becomes a no-op if another operation already
+   * changed or removed it, so a stale retraction can never record a bare rating.
    * @param messageId - target assistant message.
-   * @param rating - the judgment the human asked for.
-   * @returns the settled mutation result with the rating now committed.
+   * @param rating - judgment the human asked to retract.
+   * @returns the settled mutation result.
    */
-  toggle(messageId: MessageId, rating: MessageFeedbackRating): Promise<MessageFeedbackToggleResult> {
+  retract(messageId: MessageId, rating: MessageFeedbackRating): Promise<MessageFeedbackActionResult> {
     return this.mutate(async () => {
       const observed = this.view.items.get(messageId)
-      const retract = observed?.rating === rating
-      const result = retract
+      return observed?.rating === rating
         ? await this.deleteCommitted(messageId, observed)
-        : await this.putCommitted(messageId, rating, {}, observed)
-      return result.ok ? { ok: true, rating: retract ? null : rating } : result
+        : OK
     })
   }
 
diff --git a/packages/client/ui-message-feedback/src/client/dialog.ts b/packages/client/ui-message-feedback/src/client/dialog.ts
index 3a6930bd93..603bc1650d 100644
--- a/packages/client/ui-message-feedback/src/client/dialog.ts
+++ b/packages/client/ui-message-feedback/src/client/dialog.ts
@@ -1,21 +1,21 @@
 /**
- * Headless state of one Session's feedback dialog and its acknowledgement
- * toast. One form serves two targets: the Session itself (a bare `/feedback`)
- * and one assistant message (Dislike). The overlay view renders from the
- * store; the message controls raise the toast after a Like through
- * {@link FeedbackDialogController.acknowledge}.
+ * Headless state of one Session's feedback dialog and its acknowledgement and
+ * failure toasts. One form serves two targets: the Session itself (a bare `/feedback`)
+ * and one assistant message (Like or Dislike). The overlay view renders from
+ * the store and raises the acknowledgement after a successful submission.
  * @module @deepseek-ai/dsh-client-ui-message-feedback/client/dialog
  */
 
 import { createSnapshotStore, type SnapshotStore } from '@deepseek-ai/dsh-client-store'
 import type { MessageId } from '@deepseek-ai/dsh-api-remotes/client'
 import type { FeedbackCategory, FeedbackRecord } from '@deepseek-ai/dsh-command-feedback/types'
+import type { MessageFeedbackRating } from '@deepseek-ai/dsh-message-feedback/types'
 import type { MessageFeedbackActionResult } from './controller.ts'
 
 /** What one open dialog submits to. */
 export type FeedbackDialogTarget =
   | { readonly kind: 'session' }
-  | { readonly kind: 'message'; readonly messageId: MessageId }
+  | { readonly kind: 'message'; readonly messageId: MessageId; readonly rating: MessageFeedbackRating }
 
 /** Dialog and toast state the overlay view renders from. */
 export interface FeedbackDialogState {
@@ -82,7 +82,8 @@ export class FeedbackDialogController {
 
   /**
    * Submit the draft; an empty draft is a valid submission. Success closes the
-   * dialog and raises the toast; a failure keeps the dialog open with its code.
+   * dialog and raises the acknowledgement toast; a failure keeps the dialog
+   * open and publishes its code for the failure toast.
    * @returns after the submission settles.
    */
   async submitDraft(): Promise<void> {
@@ -103,11 +104,17 @@ export class FeedbackDialogController {
       return
     }
     if (generation !== this.generation) return
-    this.state.set({ ...this.state.getSnapshot(), submitting: false, failure: result.error.code })
+    this.state.set({ ...this.state.getSnapshot(), submitting: false, failure: result.error.code, toast: 0 })
+  }
+
+  /** Clear the current failure toast without closing its draft. */
+  dismissFailure(): void {
+    const s = this.state.getSnapshot()
+    this.state.set({ ...s, failure: null })
   }
 
   /** Show the acknowledgement toast; a toast already on screen restarts. */
-  acknowledge(): void {
+  private acknowledge(): void {
     this.toastSeq += 1
     this.state.set({ ...this.state.getSnapshot(), toast: this.toastSeq })
   }
diff --git a/packages/client/ui-message-feedback/src/client/index.ts b/packages/client/ui-message-feedback/src/client/index.ts
index 1cad98795e..91e6718f62 100644
--- a/packages/client/ui-message-feedback/src/client/index.ts
+++ b/packages/client/ui-message-feedback/src/client/index.ts
@@ -1,7 +1,7 @@
 /**
  * Feedback surface plugin, browser half: the Like/Dislike entry in the
  * conversation.chat.assistant-actions strip, the feedback dialog and its
- * acknowledgement toast in conversation.input.overlay, and the `/feedback`
+ * acknowledgement and failure toasts in conversation.input.overlay, and the `/feedback`
  * decoration that opens the dialog from the composer menu or a bare typed
  * command. One FeedbackSurface per Session backs every entry in that Session.
  * @module @deepseek-ai/dsh-client-ui-message-feedback/client
@@ -29,7 +29,7 @@ import { en, zh } from './locales.ts'
 
 export type {
   MessageFeedbackActionFailure, MessageFeedbackActionResult, MessageFeedbackStatus,
-  MessageFeedbackToggleResult, MessageFeedbackView,
+  MessageFeedbackView,
 } from './controller.ts'
 export type { FeedbackDialogState, FeedbackDialogTarget, FeedbackSubmit } from './dialog.ts'
 export type {
@@ -84,9 +84,8 @@ export function apply(ctx: ClientContext): void {
         hooks: { feedback },
         ensure: () => feedback.ensure(),
         current: messageId => feedback.getSnapshot().items.get(messageId),
-        toggle: (messageId, rating) => feedback.toggle(messageId, rating),
-        openDialog: (messageId) => { dialog.open({ kind: 'message', messageId }) },
-        acknowledge: () => { dialog.acknowledge() },
+        retract: (messageId, rating) => feedback.retract(messageId, rating),
+        openDialog: (messageId, rating) => { dialog.open({ kind: 'message', messageId, rating }) },
       }
     },
   }, MessageFeedbackActions))
@@ -103,6 +102,7 @@ export function apply(ctx: ClientContext): void {
         edit: (draft) => { dialog.edit(draft) },
         submit: () => dialog.submitDraft(),
         dismiss: () => { dialog.dismiss() },
+        dismissFailure: () => { dialog.dismissFailure() },
         dismissToast: (seq) => { dialog.dismissToast(seq) },
       }
     },
diff --git a/packages/client/ui-message-feedback/src/client/locales.ts b/packages/client/ui-message-feedback/src/client/locales.ts
index 71907e44ad..808a15a9d4 100644
--- a/packages/client/ui-message-feedback/src/client/locales.ts
+++ b/packages/client/ui-message-feedback/src/client/locales.ts
@@ -13,7 +13,7 @@ export const zh = {
   'category.task-result': '任务结果',
   'category.instruction-following': '指令理解与遵循',
   'category.product-interaction': '产品功能与交互',
-  'category.service-stability': '服务稳定性',
+  'category.service-stability': '稳定性和速度',
   'category.resource-cost': '资源使用与费用',
   'category.security-privacy-permission': '安全隐私与权限',
   'category.other': '其他',
@@ -47,7 +47,7 @@ export const en = {
   'category.task-result': 'Task result',
   'category.instruction-following': 'Instruction understanding and following',
   'category.product-interaction': 'Product features and interaction',
-  'category.service-stability': 'Service stability',
+  'category.service-stability': 'Stability and speed',
   'category.resource-cost': 'Resource usage and cost',
   'category.security-privacy-permission': 'Security, privacy, and permissions',
   'category.other': 'Other',
diff --git a/packages/client/ui-message-feedback/src/client/slots.ts b/packages/client/ui-message-feedback/src/client/slots.ts
index 3e6a56eeab..207e742acb 100644
--- a/packages/client/ui-message-feedback/src/client/slots.ts
+++ b/packages/client/ui-message-feedback/src/client/slots.ts
@@ -16,7 +16,7 @@ import type { MessageId } from '@deepseek-ai/dsh-api-remotes/client'
 import type { MessageFeedbackItem, MessageFeedbackRating } from '@deepseek-ai/dsh-message-feedback/types'
 // Type-only: pulls this package's LocaleNamespaceMap merge (the 'feedback' seat).
 import type {} from './locales.ts'
-import type { MessageFeedbackActionResult, MessageFeedbackToggleResult, MessageFeedbackView } from './controller.ts'
+import type { MessageFeedbackActionResult, MessageFeedbackView } from './controller.ts'
 import type { FeedbackDialogState } from './dialog.ts'
 
 /** Injected business face of one assistant-message feedback entry. */
@@ -33,21 +33,19 @@ export interface MessageFeedbackInjected {
    */
   current: (messageId: MessageId) => MessageFeedbackItem | undefined
   /**
-   * Apply the requested judgment, retracting instead when the committed rating
-   * already matches. The controller decides from the committed item, so a click
-   * before the first list read still toggles the stored value.
+   * Retract the requested judgment only while the committed rating still
+   * matches; a concurrent change makes the serialized operation a no-op.
    * @param messageId - target assistant message.
-   * @param rating - the judgment the human asked for.
+   * @param rating - judgment the human asked to retract.
    */
-  toggle: (messageId: MessageId, rating: MessageFeedbackRating) => Promise<MessageFeedbackToggleResult>
+  retract: (messageId: MessageId, rating: MessageFeedbackRating) => Promise<MessageFeedbackActionResult>
   /**
-   * Open the Session's feedback dialog for one message; its submission
-   * records a negative judgment with the dialog's category and text.
+   * Open the Session's feedback dialog for one message and judgment; its
+   * submission records that rating with the dialog's category and text.
    * @param messageId - target assistant message.
+   * @param rating - judgment to record on submission.
    */
-  openDialog: (messageId: MessageId) => void
-  /** Show the Session's acknowledgement toast. */
-  acknowledge: () => void
+  openDialog: (messageId: MessageId, rating: MessageFeedbackRating) => void
 }
 
 /** Full props of one assistant-message feedback entry. */
@@ -71,6 +69,8 @@ export interface FeedbackDialogInjected {
   submit: () => Promise<void>
   /** Close the dialog and discard the draft. */
   dismiss: () => void
+  /** Retire the current submission-failure toast without closing its draft. */
+  dismissFailure: () => void
   /**
    * Retire the toast the view finished showing.
    * @param seq - the toast sequence.
diff --git a/packages/client/ui-message-feedback/src/client/surface.ts b/packages/client/ui-message-feedback/src/client/surface.ts
index 4c2a6fc180..b54d04d659 100644
--- a/packages/client/ui-message-feedback/src/client/surface.ts
+++ b/packages/client/ui-message-feedback/src/client/surface.ts
@@ -1,8 +1,8 @@
 /**
  * One Session's feedback surface: the message-feedback object layer and the
  * dialog controller, plus the routing between them. A message target puts a
- * negative judgment through the message controller; the Session target
- * records through the `sessionFeedback` Remote.
+ * selected judgment through the message controller; the Session target records
+ * through the `sessionFeedback` Remote.
  * @module @deepseek-ai/dsh-client-ui-message-feedback/client/surface
  */
 
@@ -26,7 +26,7 @@ export class FeedbackSurface {
   constructor(private readonly ctx: ClientContext, private readonly sessionId: SessionId) {
     this.feedback = new MessageFeedbackController(ctx, sessionId)
     this.dialog = new FeedbackDialogController((target, entry) => target.kind === 'message'
-      ? this.feedback.rate(target.messageId, 'negative', entry)
+      ? this.feedback.rate(target.messageId, target.rating, entry)
       : this.recordSession(entry))
   }
 
diff --git a/packages/client/ui-message-feedback/tests/browser-plugin.client.spec.tsx b/packages/client/ui-message-feedback/tests/browser-plugin.client.spec.tsx
index f5ca0ae9a4..2bad94b036 100644
--- a/packages/client/ui-message-feedback/tests/browser-plugin.client.spec.tsx
+++ b/packages/client/ui-message-feedback/tests/browser-plugin.client.spec.tsx
@@ -122,7 +122,7 @@ describe('ui-message-feedback browser plugin', () => {
     expect(b.entry()?.inject).toBeTypeOf('function')
   })
 
-  it('exposes the feedback hook plus the ensure/toggle/openDialog/acknowledge verbs', async () => {
+  it('exposes the feedback hook plus the ensure/retract/openDialog verbs', async () => {
     const b = await bench()
     await b.fiber.await()
 
@@ -132,9 +132,8 @@ describe('ui-message-feedback browser plugin', () => {
     expect(face.current(MSG)).toBeUndefined()
     await face.ensure()
     expect(face.current(MSG)).toMatchObject({ messageId: MSG, rating: 'positive' })
-    expect(face.toggle).toBeTypeOf('function')
+    expect(face.retract).toBeTypeOf('function')
     expect(face.openDialog).toBeTypeOf('function')
-    expect(face.acknowledge).toBeTypeOf('function')
   })
 
   it('registers the dialog entry with the documented id, order, and locale', async () => {
@@ -144,16 +143,17 @@ describe('ui-message-feedback browser plugin', () => {
     expect(b.dialogEntry()).toMatchObject({ id: 'feedback-dialog', order: 2, locale: 'feedback' })
     const face = b.dialogEntry()!.inject!(sid('s1'))
     expect(face.hooks.dialog.getSnapshot()).toMatchObject({ target: null, toast: 0 })
+    expect(face.dismissFailure).toBeTypeOf('function')
   })
 
-  it('opens one dialog per Session from the message entry, the decoration, and acknowledges from Like', async () => {
+  it('opens one dialog per Session from the message entry and the decoration', async () => {
     const b = await bench()
     await b.fiber.await()
 
     const message = b.entry()!.inject!(sid('s1'))
     const dialog = b.dialogEntry()!.inject!(sid('s1'))
-    message.openDialog(MSG)
-    expect(dialog.hooks.dialog.getSnapshot().target).toEqual({ kind: 'message', messageId: MSG })
+    message.openDialog(MSG, 'positive')
+    expect(dialog.hooks.dialog.getSnapshot().target).toEqual({ kind: 'message', messageId: MSG, rating: 'positive' })
 
     const decoration = b.decorations.get('feedback')
     expect(decoration?.available({ sessionId: sid('s1') })).toBe(true)
@@ -161,8 +161,6 @@ describe('ui-message-feedback browser plugin', () => {
     decoration.ui.run({ sessionId: sid('s1') })
     expect(dialog.hooks.dialog.getSnapshot().target).toEqual({ kind: 'session' })
 
-    message.acknowledge()
-    expect(dialog.hooks.dialog.getSnapshot().toast).toBe(1)
     expect(b.dialogEntry()!.inject!(sid('s2')).hooks.dialog.getSnapshot()).toMatchObject({ target: null, toast: 0 })
   })
 
@@ -181,11 +179,11 @@ describe('ui-message-feedback browser plugin', () => {
       .toEqual({ sessionId: 's1', text: 'timed out', category: 'service-stability' })
     expect(dialog.hooks.dialog.getSnapshot()).toMatchObject({ target: null, toast: 1 })
 
-    message.openDialog(MSG)
+    message.openDialog(MSG, 'positive')
     dialog.edit({ category: 'task-result' })
     await dialog.submit()
     expect(b.calls.filter(call => call.method === 'put')[0]?.request).toMatchObject({
-      sessionId: 's1', messageId: MSG, rating: 'negative', category: 'task-result', ifVersion: 'v1',
+      sessionId: 's1', messageId: MSG, rating: 'positive', category: 'task-result', ifVersion: 'v1',
     })
     expect(dialog.hooks.dialog.getSnapshot().toast).toBe(2)
     dialog.dismissToast(2)
@@ -203,6 +201,8 @@ describe('ui-message-feedback browser plugin', () => {
     await dialog.submit()
 
     expect(dialog.hooks.dialog.getSnapshot()).toMatchObject({ target: { kind: 'session' }, failure: 'gateway/internal', toast: 0 })
+    dialog.dismissFailure()
+    expect(dialog.hooks.dialog.getSnapshot()).toMatchObject({ target: { kind: 'session' }, failure: null })
   })
 
   it('keeps the dialog open with the failure code when the Host rejects the remark', async () => {
@@ -251,19 +251,17 @@ describe('ui-message-feedback browser plugin', () => {
     ])
   })
 
-  it('routes toggle to the Remote with the addressed message', async () => {
+  it('routes only a matching retraction to the Remote', async () => {
     const b = await bench()
     await b.fiber.await()
 
     const face = b.entry()!.inject!(sid('s1'))
-    // The seeded item is positive, so a negative toggle replaces it through
-    // put and a positive one retracts it through delete.
-    expect(await face.toggle(MSG, 'negative')).toEqual({ ok: true, rating: 'negative' })
-    expect(await face.toggle(MSG, 'positive')).toEqual({ ok: true, rating: null })
+    // A stale or opposite retraction is a no-op; only the matching rating
+    // reaches delete, so this entry can never bypass the dialog through put.
+    expect(await face.retract(MSG, 'negative')).toEqual({ ok: true })
+    expect(await face.retract(MSG, 'positive')).toEqual({ ok: true })
 
-    expect(b.calls.filter(call => call.method === 'put')[0]?.request).toMatchObject({
-      sessionId: 's1', messageId: MSG, rating: 'negative',
-    })
+    expect(b.calls.filter(call => call.method === 'put')).toHaveLength(0)
     expect(b.calls.filter(call => call.method === 'delete')[0]?.request).toMatchObject({
       sessionId: 's1', messageId: MSG,
     })
@@ -292,7 +290,7 @@ describe('ui-message-feedback browser plugin', () => {
     const face = b.entry()!.inject!(sid('s1'))
     const dialog = b.dialogEntry()!.inject!(sid('s1'))
     await face.ensure()
-    face.openDialog(MSG)
+    face.openDialog(MSG, 'negative')
 
     await b.fiber.dispose()
 
@@ -302,7 +300,7 @@ describe('ui-message-feedback browser plugin', () => {
     expect(dialog.hooks.dialog.getSnapshot().target).toBeNull()
     // A disposed controller refuses further mutations, so no request outlives the fiber.
     const before = b.calls.length
-    expect(await face.toggle(MSG, 'negative')).toMatchObject({ ok: false, error: { code: 'disposed' } })
+    expect(await face.retract(MSG, 'negative')).toMatchObject({ ok: false, error: { code: 'disposed' } })
     expect(b.calls).toHaveLength(before)
   })
 
diff --git a/packages/client/ui-message-feedback/tests/controller.client.spec.ts b/packages/client/ui-message-feedback/tests/controller.client.spec.ts
index c8074c30e9..5fe01b2f58 100644
--- a/packages/client/ui-message-feedback/tests/controller.client.spec.ts
+++ b/packages/client/ui-message-feedback/tests/controller.client.spec.ts
@@ -126,24 +126,38 @@ describe('MessageFeedbackController', () => {
     expect(puts[1]).not.toHaveProperty('category')
   })
 
-  it('toggle retracts a matching rating, records an absent one, and reports the committed rating', async () => {
+  it('retract deletes a matching rating and ignores an opposite judgment', async () => {
     const { ctx, calls } = fakeRemote({
       list: () => Promise.resolve({ ok: true, value: { items: [item({ note: 'stored', category: 'other' })] } }),
-      put: () => Promise.resolve({ ok: true, value: item({ rating: 'negative', version: version('v2') }) }),
     })
     const controller = new MessageFeedbackController(ctx, SESSION)
 
-    expect(await controller.toggle(MSG, 'positive')).toEqual({ ok: true, rating: null })
-    expect(await controller.toggle(MSG, 'negative')).toEqual({ ok: true, rating: 'negative' })
+    expect(await controller.retract(MSG, 'negative')).toEqual({ ok: true })
+    expect(await controller.retract(MSG, 'positive')).toEqual({ ok: true })
 
+    expect(calls.filter(call => call.method === 'put')).toHaveLength(0)
     expect(calls.filter(call => call.method === 'delete')[0]?.request)
       .toEqual({ sessionId: SESSION, messageId: MSG, ifVersion: version('v1') })
-    // A replacement stores the bare judgment: the retracted item's note and
-    // category do not carry over.
-    const put = calls.filter(call => call.method === 'put')[0]?.request as Record<string, unknown>
-    expect(put).toMatchObject({ rating: 'negative', ifVersion: null })
-    expect(put).not.toHaveProperty('note')
-    expect(put).not.toHaveProperty('category')
+  })
+
+  it('never turns a queued stale retraction into a bare rating put', async () => {
+    const existing = item({ rating: 'positive', version: version('v1') })
+    const replacement = item({ rating: 'negative', version: version('v2') })
+    const { ctx, calls } = fakeRemote({
+      list: () => Promise.resolve({ ok: true, value: { items: [existing] } }),
+      put: () => Promise.resolve({ ok: true, value: replacement }),
+    })
+    const controller = new MessageFeedbackController(ctx, SESSION)
+    await controller.ensure()
+
+    const replaced = controller.rate(MSG, 'negative')
+    const staleRetraction = controller.retract(MSG, 'positive')
+
+    await expect(replaced).resolves.toEqual({ ok: true })
+    await expect(staleRetraction).resolves.toEqual({ ok: true })
+    expect(calls.filter(call => call.method === 'put')).toHaveLength(1)
+    expect(calls.filter(call => call.method === 'delete')).toHaveLength(0)
+    expect(controller.getSnapshot().items.get(MSG)).toEqual(replacement)
   })
 
   it('reconciles a version conflict from the authoritative item without refetching', async () => {
@@ -176,7 +190,7 @@ describe('MessageFeedbackController', () => {
     const controller = new MessageFeedbackController(ctx, SESSION)
     await controller.ensure()
 
-    expect(await controller.toggle(MSG, 'positive')).toMatchObject({ ok: false, error: { code: 'version-conflict' } })
+    expect(await controller.retract(MSG, 'positive')).toMatchObject({ ok: false, error: { code: 'version-conflict' } })
     expect(controller.getSnapshot().items.has(MSG)).toBe(false)
   })
 
@@ -187,7 +201,7 @@ describe('MessageFeedbackController', () => {
     const controller = new MessageFeedbackController(ctx, SESSION)
     await controller.ensure()
 
-    expect(await controller.toggle(MSG, 'positive')).toEqual({ ok: true, rating: null })
+    expect(await controller.retract(MSG, 'positive')).toEqual({ ok: true })
 
     expect(calls.filter(call => call.method === 'delete')[0]?.request)
       .toEqual({ sessionId: SESSION, messageId: MSG, ifVersion: version('v7') })
@@ -402,7 +416,7 @@ describe('MessageFeedbackController', () => {
     })
     const controller = new MessageFeedbackController(ctx, SESSION)
     await controller.ensure()
-    const pending = controller.toggle(MSG, 'positive')
+    const pending = controller.retract(MSG, 'positive')
 
     const listener = vi.fn()
     controller.subscribe(listener)
@@ -439,7 +453,7 @@ describe('MessageFeedbackController', () => {
     const controller = new MessageFeedbackController(ctx, SESSION)
     await controller.ensure()
 
-    expect(await controller.toggle(MSG, 'positive')).toMatchObject({
+    expect(await controller.retract(MSG, 'positive')).toMatchObject({
       ok: false,
       error: { code: 'session-not-found' },
     })
@@ -547,7 +561,7 @@ describe('MessageFeedbackController', () => {
     const controller = new MessageFeedbackController(ctx, SESSION)
     await controller.ensure()
 
-    expect(await controller.toggle(MSG, 'positive')).toMatchObject({ ok: false, error: { code: 'gateway/internal' } })
+    expect(await controller.retract(MSG, 'positive')).toMatchObject({ ok: false, error: { code: 'gateway/internal' } })
     expect(controller.getSnapshot().items.has(MSG)).toBe(true)
   })
 })
diff --git a/packages/client/ui-message-feedback/tests/dialog.client.spec.ts b/packages/client/ui-message-feedback/tests/dialog.client.spec.ts
index 66bc278664..fdec33b8ba 100644
--- a/packages/client/ui-message-feedback/tests/dialog.client.spec.ts
+++ b/packages/client/ui-message-feedback/tests/dialog.client.spec.ts
@@ -10,6 +10,7 @@ import type { MessageFeedbackActionResult } from '../src/client/controller.ts'
 import { FeedbackDialogController, type FeedbackSubmit } from '../src/client/dialog.ts'
 
 const MSG = 'm-1' as MessageId
+const MESSAGE_TARGET = { kind: 'message', messageId: MSG, rating: 'positive' } as const
 
 function bench(result: () => Promise<MessageFeedbackActionResult> = () => Promise.resolve({ ok: true })) {
   const submit = vi.fn<FeedbackSubmit>(() => result())
@@ -36,9 +37,9 @@ describe('FeedbackDialogController', () => {
     })
 
     controller.dismiss()
-    controller.open({ kind: 'message', messageId: MSG })
+    controller.open(MESSAGE_TARGET)
     expect(controller.state.getSnapshot()).toMatchObject({
-      target: { kind: 'message', messageId: MSG }, category: null, text: '',
+      target: MESSAGE_TARGET, category: null, text: '',
     })
   })
 
@@ -77,29 +78,39 @@ describe('FeedbackDialogController', () => {
 
   it('submits the message target with the entry', async () => {
     const { controller, submit } = bench()
-    controller.open({ kind: 'message', messageId: MSG })
+    controller.open(MESSAGE_TARGET)
     controller.edit({ category: 'task-result' })
     controller.edit({ text: 'wrong file' })
 
     await controller.submitDraft()
 
-    expect(submit).toHaveBeenCalledWith({ kind: 'message', messageId: MSG }, { text: 'wrong file', category: 'task-result' })
+    expect(submit).toHaveBeenCalledWith(MESSAGE_TARGET, { text: 'wrong file', category: 'task-result' })
     expect(controller.state.getSnapshot()).toMatchObject({ target: null, toast: 1 })
   })
 
   it('keeps the draft open with the failure code when the submission is rejected', async () => {
     const { controller } = bench(() => Promise.resolve({ ok: false, error: { code: 'version-conflict', message: 'changed' } }))
-    controller.open({ kind: 'message', messageId: MSG })
+    controller.open(MESSAGE_TARGET)
     controller.edit({ text: 'draft' })
 
     await controller.submitDraft()
 
     expect(controller.state.getSnapshot()).toMatchObject({
-      target: { kind: 'message', messageId: MSG }, text: 'draft', submitting: false,
+      target: MESSAGE_TARGET, text: 'draft', submitting: false,
       failure: 'version-conflict', toast: 0,
     })
   })
 
+  it('retires the failure toast without closing its draft', async () => {
+    const { controller } = bench(() => Promise.resolve({ ok: false, error: { code: 'version-conflict', message: 'changed' } }))
+    controller.open(MESSAGE_TARGET)
+    await controller.submitDraft()
+
+    controller.dismissFailure()
+    expect(controller.state.getSnapshot().failure).toBeNull()
+    expect(controller.state.getSnapshot().target).toEqual(MESSAGE_TARGET)
+  })
+
   it('freezes the draft and refuses a second submit while one is in flight', async () => {
     let release = (): void => {}
     const gate = new Promise<MessageFeedbackActionResult>((resolve) => { release = () => { resolve({ ok: true }) } })
@@ -125,14 +136,14 @@ describe('FeedbackDialogController', () => {
     const { controller } = bench(() => gate)
     controller.open({ kind: 'session' })
     const pending = controller.submitDraft()
-    controller.open({ kind: 'message', messageId: MSG })
+    controller.open(MESSAGE_TARGET)
     controller.edit({ text: 'new draft' })
 
     release()
     await pending
 
     expect(controller.state.getSnapshot()).toMatchObject({
-      target: { kind: 'message', messageId: MSG }, text: 'new draft', toast: 1,
+      target: MESSAGE_TARGET, text: 'new draft', toast: 1,
     })
   })
 
@@ -152,11 +163,13 @@ describe('FeedbackDialogController', () => {
     expect(controller.state.getSnapshot()).toMatchObject({ target: null, failure: null, submitting: false, toast: 0 })
   })
 
-  it('retires only the toast the view finished showing', () => {
+  it('retires only the toast the view finished showing', async () => {
     const { controller } = bench()
 
-    controller.acknowledge()
-    controller.acknowledge()
+    controller.open({ kind: 'session' })
+    await controller.submitDraft()
+    controller.open({ kind: 'session' })
+    await controller.submitDraft()
     expect(controller.state.getSnapshot().toast).toBe(2)
 
     controller.dismissToast(1)
@@ -165,9 +178,10 @@ describe('FeedbackDialogController', () => {
     expect(controller.state.getSnapshot().toast).toBe(0)
   })
 
-  it('keeps a toast on screen across a dismiss and drops everything on dispose', () => {
+  it('keeps a toast on screen across a dismiss and drops everything on dispose', async () => {
     const { controller } = bench()
-    controller.acknowledge()
+    controller.open({ kind: 'session' })
+    await controller.submitDraft()
     controller.open({ kind: 'session' })
 
     controller.dismiss()
diff --git a/packages/client/ui-message-feedback/tests/feedback-dialog.client.spec.tsx b/packages/client/ui-message-feedback/tests/feedback-dialog.client.spec.tsx
index 2010ca5901..305946ee04 100644
--- a/packages/client/ui-message-feedback/tests/feedback-dialog.client.spec.tsx
+++ b/packages/client/ui-message-feedback/tests/feedback-dialog.client.spec.tsx
@@ -3,9 +3,9 @@
  * FeedbackDialog rendering: the modal shows the seven category chips, the
  * detail box, and the hint while a target is open; a chip toggles the
  * category through the injected verb; Submit routes to the controller and
- * stays enabled with an empty draft; a failure code renders its copy; and the
- * acknowledgement toast mounts from the toast sequence and retires through
- * dismissToast once its fade completes.
+ * stays enabled with an empty draft; a failure code renders a warning toast;
+ * and the acknowledgement toast mounts from the toast sequence and retires
+ * through dismissToast once its fade completes.
  */
 import { useSyncExternalStore } from 'react'
 import { afterEach, describe, expect, it, vi } from 'vitest'
@@ -31,6 +31,7 @@ function mount(overrides: Partial<FeedbackDialogState> = {}) {
     edit: vi.fn(),
     submit: vi.fn(() => Promise.resolve()),
     dismiss: vi.fn(),
+    dismissFailure: vi.fn(),
     dismissToast: vi.fn(),
   }
   const useDialog = (<T,>(select: (v: FeedbackDialogState) => T): T =>
@@ -40,9 +41,11 @@ function mount(overrides: Partial<FeedbackDialogState> = {}) {
 }
 
 describe('FeedbackDialog', () => {
-  it('discloses conversation-log inclusion in both supported locales', () => {
+  it('owns the conversation-log disclosure and stability category in both supported locales', () => {
     expect(zh['dialog.hint']).toBe('填写详情以帮助我们改进体验，提交内容会包括当前对话的日志')
     expect(en['dialog.hint']).toBe('Add details to help us improve. Your submission will include the current conversation log.')
+    expect(zh['category.service-stability']).toBe('稳定性和速度')
+    expect(en['category.service-stability']).toBe('Stability and speed')
   })
 
   it('renders nothing but the probe while closed with no toast', () => {
@@ -99,17 +102,32 @@ describe('FeedbackDialog', () => {
     expect([...chips].every(chip => chip.hasAttribute('disabled'))).toBe(true)
   })
 
-  it('renders the conflict and size copy for their codes and the generic copy otherwise', () => {
+  it('renders submission failures as toasts outside the dialog', () => {
     const conflict = mount({ failure: 'version-conflict' })
-    expect(conflict.getByRole('status').textContent).toBe(zh['error.conflict'])
+    const conflictToast = conflict.getByRole('alert')
+    expect(conflictToast.textContent).toBe(zh['error.conflict'])
+    expect(conflict.getByRole('dialog').contains(conflictToast)).toBe(false)
     cleanup()
 
     const oversized = mount({ failure: 'note-too-large' })
-    expect(oversized.getByRole('status').textContent).toBe(zh['error.noteTooLarge'])
+    expect(oversized.getByRole('alert').textContent).toBe(zh['error.noteTooLarge'])
     cleanup()
 
     const other = mount({ failure: 'session-not-found' })
-    expect(other.getByRole('status').textContent).toBe(zh['error.generic'])
+    expect(other.getByRole('alert').textContent).toBe(zh['error.generic'])
+  })
+
+  it('retires a submission-failure toast after its extended hold', () => {
+    vi.useFakeTimers()
+    try {
+      const ui = mount({ failure: 'version-conflict' })
+
+      act(() => { vi.advanceTimersByTime(7000) })
+
+      expect(ui.dismissFailure).toHaveBeenCalledTimes(1)
+    } finally {
+      vi.useRealTimers()
+    }
   })
 
   it('retires the toast when the entry unmounts, so a Session switch does not replay it', () => {
diff --git a/packages/client/ui-message-feedback/tests/message-feedback-actions.client.spec.tsx b/packages/client/ui-message-feedback/tests/message-feedback-actions.client.spec.tsx
index c855672881..4121676697 100644
--- a/packages/client/ui-message-feedback/tests/message-feedback-actions.client.spec.tsx
+++ b/packages/client/ui-message-feedback/tests/message-feedback-actions.client.spec.tsx
@@ -1,11 +1,10 @@
 // @vitest-environment jsdom
 /**
  * MessageFeedbackActions rendering and gestures: the rating buttons reflect the
- * shared view with the filled glyph for a recorded rating, Like records at once
- * and raises the acknowledgement only when a rating was recorded, Dislike opens
- * the Session's dialog unless it retracts a recorded Dislike, the Session's
- * feedback is read on first interaction rather than on mount, and a rejected
- * mutation surfaces inline without losing the authoritative state.
+ * shared view with the filled glyph for a recorded rating, either unrecorded
+ * rating opens the Session's dialog, clicking the recorded rating retracts it,
+ * the Session's feedback is read on first interaction rather than on mount, and
+ * a rejected retraction surfaces inline without losing the authoritative state.
  */
 import { useSyncExternalStore } from 'react'
 import { afterEach, describe, expect, it, vi } from 'vitest'
@@ -18,7 +17,7 @@ import type {
 } from '@deepseek-ai/dsh-message-feedback/types'
 import { MessageFeedbackActions } from '../src/client/MessageFeedbackActions.tsx'
 import type {
-  MessageFeedbackActionResult, MessageFeedbackToggleResult, MessageFeedbackView,
+  MessageFeedbackActionResult, MessageFeedbackView,
 } from '../src/client/controller.ts'
 import { zh } from '../src/client/locales.ts'
 
@@ -44,7 +43,7 @@ function mount(options: {
   /** The controller's committed item when it differs from the rendered view (a cold row). */
   committed?: MessageFeedbackItem
   ensureResult?: MessageFeedbackActionResult
-  toggleResult?: MessageFeedbackToggleResult
+  retractResult?: MessageFeedbackActionResult
   status?: MessageFeedbackView['status']
 } = {}) {
   const view: MessageFeedbackView = {
@@ -53,19 +52,15 @@ function mount(options: {
     error: null,
   }
   const ensure = vi.fn(() => Promise.resolve<MessageFeedbackActionResult>(options.ensureResult ?? { ok: true }))
-  // The controller owns record-vs-retract, so the double stands in for it:
-  // matching the shown rating retracts, anything else records.
-  const toggle = vi.fn((_id: MessageId, next: MessageFeedbackRating) =>
-    Promise.resolve<MessageFeedbackToggleResult>(options.toggleResult
-      ?? { ok: true, rating: options.current?.rating === next ? null : next }))
-  const openDialog = vi.fn((_id: MessageId) => {})
-  const acknowledge = vi.fn(() => {})
+  const retract = vi.fn((_id: MessageId, _rating: MessageFeedbackRating) =>
+    Promise.resolve<MessageFeedbackActionResult>(options.retractResult ?? { ok: true }))
+  const openDialog = vi.fn((_id: MessageId, _rating: MessageFeedbackRating) => {})
   const current = vi.fn((_id: MessageId) => options.committed ?? options.current)
   const useFeedback = (<T,>(select: (v: MessageFeedbackView) => T): T =>
     useSyncExternalStore(() => () => {}, () => select(view))) as never
-  const props = { messageId: MSG, ensure, current, toggle, openDialog, acknowledge, useFeedback, t } as unknown as
+  const props = { messageId: MSG, ensure, current, retract, openDialog, useFeedback, t } as unknown as
     Parameters<typeof MessageFeedbackActions>[0]
-  return { ...render(<MessageFeedbackActions {...props} />), ensure, toggle, openDialog, acknowledge }
+  return { ...render(<MessageFeedbackActions {...props} />), ensure, retract, openDialog }
 }
 
 describe('MessageFeedbackActions', () => {
@@ -103,24 +98,32 @@ describe('MessageFeedbackActions', () => {
     expect(ui.ensure).not.toHaveBeenCalled()
   })
 
-  it('records a Like at once and acknowledges it', async () => {
+  it('opens the dialog for a Like instead of recording it', async () => {
     const ui = mount()
 
     fireEvent.click(ui.getByLabelText(zh['action.like']))
 
-    await waitFor(() => { expect(ui.toggle).toHaveBeenCalledWith(MSG, 'positive') })
-    await waitFor(() => { expect(ui.acknowledge).toHaveBeenCalledTimes(1) })
-    expect(ui.openDialog).not.toHaveBeenCalled()
+    await waitFor(() => { expect(ui.openDialog).toHaveBeenCalledWith(MSG, 'positive') })
+    expect(ui.retract).not.toHaveBeenCalled()
   })
 
-  it('retracts a recorded Like on click without acknowledging', async () => {
+  it('opens the dialog for a Like that replaces a recorded Dislike', async () => {
+    const ui = mount({ current: item({ rating: 'negative' }) })
+
+    fireEvent.click(ui.getByLabelText(zh['action.like']))
+
+    await waitFor(() => { expect(ui.openDialog).toHaveBeenCalledWith(MSG, 'positive') })
+    expect(ui.retract).not.toHaveBeenCalled()
+  })
+
+  it('retracts a recorded Like on click without the dialog', async () => {
     const ui = mount({ current: item({ rating: 'positive' }) })
 
     fireEvent.click(ui.getByLabelText(zh['action.likeActive']))
 
-    await waitFor(() => { expect(ui.toggle).toHaveBeenCalledWith(MSG, 'positive') })
+    await waitFor(() => { expect(ui.retract).toHaveBeenCalledWith(MSG, 'positive') })
     await waitFor(() => { expect(ui.getByLabelText(zh['action.likeActive']).hasAttribute('disabled')).toBe(false) })
-    expect(ui.acknowledge).not.toHaveBeenCalled()
+    expect(ui.openDialog).not.toHaveBeenCalled()
   })
 
   it('opens the dialog for a Dislike instead of recording it', async () => {
@@ -128,8 +131,8 @@ describe('MessageFeedbackActions', () => {
 
     fireEvent.click(ui.getByLabelText(zh['action.dislike']))
 
-    await waitFor(() => { expect(ui.openDialog).toHaveBeenCalledWith(MSG) })
-    expect(ui.toggle).not.toHaveBeenCalled()
+    await waitFor(() => { expect(ui.openDialog).toHaveBeenCalledWith(MSG, 'negative') })
+    expect(ui.retract).not.toHaveBeenCalled()
   })
 
   it('opens the dialog for a Dislike that replaces a recorded Like', async () => {
@@ -137,8 +140,8 @@ describe('MessageFeedbackActions', () => {
 
     fireEvent.click(ui.getByLabelText(zh['action.dislike']))
 
-    await waitFor(() => { expect(ui.openDialog).toHaveBeenCalledWith(MSG) })
-    expect(ui.toggle).not.toHaveBeenCalled()
+    await waitFor(() => { expect(ui.openDialog).toHaveBeenCalledWith(MSG, 'negative') })
+    expect(ui.retract).not.toHaveBeenCalled()
   })
 
   it('opens the dialog for a Dislike when the seeding read fails, leaving the put to decide', async () => {
@@ -146,8 +149,8 @@ describe('MessageFeedbackActions', () => {
 
     fireEvent.click(ui.getByLabelText(zh['action.dislike']))
 
-    await waitFor(() => { expect(ui.openDialog).toHaveBeenCalledWith(MSG) })
-    expect(ui.toggle).not.toHaveBeenCalled()
+    await waitFor(() => { expect(ui.openDialog).toHaveBeenCalledWith(MSG, 'negative') })
+    expect(ui.retract).not.toHaveBeenCalled()
   })
 
   it('decides a Dislike from the committed item, so a cold row retracts a stored Dislike', async () => {
@@ -155,7 +158,7 @@ describe('MessageFeedbackActions', () => {
 
     fireEvent.click(ui.getByLabelText(zh['action.dislike']))
 
-    await waitFor(() => { expect(ui.toggle).toHaveBeenCalledWith(MSG, 'negative') })
+    await waitFor(() => { expect(ui.retract).toHaveBeenCalledWith(MSG, 'negative') })
     expect(ui.openDialog).not.toHaveBeenCalled()
   })
 
@@ -164,28 +167,28 @@ describe('MessageFeedbackActions', () => {
 
     fireEvent.click(ui.getByLabelText(zh['action.dislikeActive']))
 
-    await waitFor(() => { expect(ui.toggle).toHaveBeenCalledWith(MSG, 'negative') })
+    await waitFor(() => { expect(ui.retract).toHaveBeenCalledWith(MSG, 'negative') })
     expect(ui.openDialog).not.toHaveBeenCalled()
-    expect(ui.acknowledge).not.toHaveBeenCalled()
   })
 
-  it('reports a lost race with the conflict copy', async () => {
+  it('reports a lost retraction race with the conflict copy', async () => {
     const ui = mount({
-      toggleResult: { ok: false, error: { code: 'version-conflict', message: 'feedback changed elsewhere' } },
+      current: item({ rating: 'positive' }),
+      retractResult: { ok: false, error: { code: 'version-conflict', message: 'feedback changed elsewhere' } },
     })
 
-    fireEvent.click(ui.getByLabelText(zh['action.like']))
+    fireEvent.click(ui.getByLabelText(zh['action.likeActive']))
 
     await waitFor(() => { expect(ui.getByText(zh['error.conflict'])).toBeTruthy() })
-    expect(ui.acknowledge).not.toHaveBeenCalled()
   })
 
-  it('reports any other failure with the generic copy', async () => {
+  it('reports any other retraction failure with the generic copy', async () => {
     const ui = mount({
-      toggleResult: { ok: false, error: { code: 'target-not-found', message: 'no such message' } },
+      current: item({ rating: 'positive' }),
+      retractResult: { ok: false, error: { code: 'target-not-found', message: 'no such message' } },
     })
 
-    fireEvent.click(ui.getByLabelText(zh['action.like']))
+    fireEvent.click(ui.getByLabelText(zh['action.likeActive']))
 
     await waitFor(() => { expect(ui.getByText(zh['error.generic'])).toBeTruthy() })
   })
@@ -193,7 +196,7 @@ describe('MessageFeedbackActions', () => {
   it('reports a failed retraction of a recorded Dislike', async () => {
     const ui = mount({
       current: item({ rating: 'negative' }),
-      toggleResult: { ok: false, error: { code: 'version-conflict', message: 'feedback changed elsewhere' } },
+      retractResult: { ok: false, error: { code: 'version-conflict', message: 'feedback changed elsewhere' } },
     })
 
     fireEvent.click(ui.getByLabelText(zh['action.dislikeActive']))
@@ -203,18 +206,19 @@ describe('MessageFeedbackActions', () => {
 
   it('publishes no state after the row unmounts mid-flight', async () => {
     let release = (): void => {}
-    const gate = new Promise<MessageFeedbackToggleResult>((resolve) => {
+    const gate = new Promise<MessageFeedbackActionResult>((resolve) => {
       release = () => { resolve({ ok: false, error: { code: 'target-not-found', message: 'gone' } }) }
     })
-    const view: MessageFeedbackView = { status: 'ready', items: new Map(), error: null }
+    const recorded = item({ rating: 'positive' })
+    const view: MessageFeedbackView = { status: 'ready', items: new Map([[MSG, recorded]]), error: null }
     const useFeedback = (<T,>(select: (v: MessageFeedbackView) => T): T =>
       useSyncExternalStore(() => () => {}, () => select(view))) as never
     const props = {
       messageId: MSG,
       ensure: vi.fn(() => Promise.resolve<MessageFeedbackActionResult>({ ok: true })),
-      toggle: vi.fn(() => gate),
+      current: () => recorded,
+      retract: vi.fn(() => gate),
       openDialog: vi.fn(),
-      acknowledge: vi.fn(),
       useFeedback,
       t,
     } as unknown as Parameters<typeof MessageFeedbackActions>[0]
@@ -223,7 +227,7 @@ describe('MessageFeedbackActions', () => {
     const onError = (event: ErrorEvent): void => { errors.push(event.error) }
     window.addEventListener('error', onError)
 
-    fireEvent.click(ui.getByLabelText(zh['action.like']))
+    fireEvent.click(ui.getByLabelText(zh['action.likeActive']))
     ui.unmount()
     release()
     await gate
@@ -243,9 +247,8 @@ describe('MessageFeedbackActions', () => {
       messageId: MSG,
       ensure: vi.fn(() => gate),
       current: () => undefined,
-      toggle: vi.fn(),
+      retract: vi.fn(),
       openDialog,
-      acknowledge: vi.fn(),
       useFeedback,
       t,
     } as unknown as Parameters<typeof MessageFeedbackActions>[0]
@@ -266,7 +269,7 @@ describe('MessageFeedbackActions', () => {
 
   it('publishes no state after the row unmounts mid-retraction', async () => {
     let release = (): void => {}
-    const gate = new Promise<MessageFeedbackToggleResult>((resolve) => {
+    const gate = new Promise<MessageFeedbackActionResult>((resolve) => {
       release = () => { resolve({ ok: false, error: { code: 'target-not-found', message: 'gone' } }) }
     })
     const view: MessageFeedbackView = {
@@ -278,9 +281,8 @@ describe('MessageFeedbackActions', () => {
       messageId: MSG,
       ensure: vi.fn(() => Promise.resolve<MessageFeedbackActionResult>({ ok: true })),
       current: () => item({ rating: 'negative' }),
-      toggle: vi.fn(() => gate),
+      retract: vi.fn(() => gate),
       openDialog: vi.fn(),
-      acknowledge: vi.fn(),
       useFeedback,
       t,
     } as unknown as Parameters<typeof MessageFeedbackActions>[0]
@@ -292,7 +294,7 @@ describe('MessageFeedbackActions', () => {
     fireEvent.click(ui.getByLabelText(zh['action.dislikeActive']))
     // The retraction starts only after the seeding read settles; unmount
     // while that retraction is in flight.
-    await waitFor(() => { expect(props.toggle).toHaveBeenCalledWith(MSG, 'negative') })
+    await waitFor(() => { expect(props.retract).toHaveBeenCalledWith(MSG, 'negative') })
     ui.unmount()
     release()
     await gate
@@ -310,10 +312,11 @@ describe('MessageFeedbackActions', () => {
   it('prefers the action failure over the load notice', async () => {
     const ui = mount({
       status: 'error',
-      toggleResult: { ok: false, error: { code: 'target-not-found', message: 'gone' } },
+      current: item({ rating: 'positive' }),
+      retractResult: { ok: false, error: { code: 'target-not-found', message: 'gone' } },
     })
 
-    fireEvent.click(ui.getByLabelText(zh['action.like']))
+    fireEvent.click(ui.getByLabelText(zh['action.likeActive']))
 
     await waitFor(() => { expect(ui.getByText(zh['error.generic'])).toBeTruthy() })
     expect(ui.queryByText(zh['error.load'])).toBeNull()
diff --git a/packages/client/ui-primitives/README.i18n.yaml b/packages/client/ui-primitives/README.i18n.yaml
index cd6bb5ae5a..004fee36ec 100644
--- a/packages/client/ui-primitives/README.i18n.yaml
+++ b/packages/client/ui-primitives/README.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write packages/client/ui-primitives/README.md
-README.md: 1919e923c6edfae58e38849996f3979723198075
-README.zh.md: e0c90fd14a284aac6a2420f5974eef6ad78138c7
+README.md: 0910add0a4d2cf9c5b57f51c3511de73133bab77
+README.zh.md: a31d48b673a916ff9afdff004fce3a0974d419a7
diff --git a/packages/client/ui-primitives/README.md b/packages/client/ui-primitives/README.md
index 1919e923c6..0910add0a4 100644
--- a/packages/client/ui-primitives/README.md
+++ b/packages/client/ui-primitives/README.md
@@ -67,7 +67,7 @@ Writing your own component in your own package is fine when the need is genuinel
 
 ### Controls and icons
 
-The catalog above lists what each export is for; this section covers the behavior that props alone do not show. The `ic_ds_*` icon set and `FishLogo`/`BrandWordmark` marks fill brand and inline-icon slots. `FileTypeIcon` renders the traditional 28px Excel, folder, HTML, image, Markdown, generic, PDF, PPT, video, and Word glyphs, and uses the full-color square technology artwork for recognized code and configuration files. `classifyFileType` applies exact filename, prefix, suffix, optional project-context, and extension rules in that order; React names win over TypeScript/JavaScript, Angular suffixes win over their base extension, and a Dart file becomes Flutter only when the supplied project files contain a `pubspec.yaml` with `flutter:`. Markdown and SVG remain traditional Markdown and image files. Office mappings include XLSM/Numbers as Excel, KEY as slides, and RTF/ODT/Pages as documents. `fileExtension` exposes the same basename and final-dot parsing for adjacent metadata labels. Traditional glyphs use a solid category-colored sheet with a white mark and translucent white corner; the generic file uses a grey sheet and darker grey corner. Callers may override the sheet color through `--dsh-file-type-icon-color`. The full-color technology artwork is the deliberate exception and retains its embedded palette. All glyphs are decorative and carry no label. `LinkIcon` remains the smaller leading glyph for clickable artifact links — globe, folder, code, image, document, or plain paper — while `classifyLinkPath` folds the shared file types into that existing six-category vocabulary. `ConnectionIndicator` renders a warning-colored disconnected action, a connecting label whose one-to-three dots advance every 500ms independently of retry timing, or a success-colored recovered status. Hover or keyboard focus shows only the reconnect action label, including while the connecting dots animate. Every state reserves the widest supplied label and uses fixed icon and text columns, so copy changes do not move or resize the control. Its owner supplies visibility, the recovery hold, localized labels, and the immediate-reconnect callback; the primitive uses no native title tooltip. `useAnchoredPosition` and `useAnchoredMaxHeight` keep floating panels and bottom-anchored overlays clamped to the viewport and following their anchor. `HoverCard` keeps its portaled preview reachable across the anchor gap and can expose a copy button through the `copyText` prop. `Toast` holds for the window its owner names through `holdMs`, because how long a banner has to stay depends on how much there is to read; the same value drives its unmount timer and the stylesheet's fade delay, so the two cannot disagree. `rankByName` is the `/` menu's shared candidate ranker for the command and skill sources: the query must be a case-insensitive ordered subsequence of the name; prefix hits rank first, then alignment score, then source order. `Menu.autoFocus` focuses its first enabled item, supports Arrow Up/Down and Home/End navigation, and focuses the first button in the anchor on Escape; it is opt-in for action menus.
+The catalog above lists what each export is for; this section covers the behavior that props alone do not show. The `ic_ds_*` icon set and `FishLogo`/`BrandWordmark` marks fill brand and inline-icon slots. `FileTypeIcon` renders the traditional 28px Excel, folder, HTML, image, Markdown, generic, PDF, PPT, video, and Word glyphs, and uses the imported square technology artwork for the established 48 code and configuration categories. The import replaces artwork only: archive-only categories do not extend `CodeFileType`. `classifyFileType` applies exact filename, prefix, suffix, optional project-context, and extension rules in that order; React names win over TypeScript/JavaScript, Angular suffixes win over their base extension, and a Dart file becomes Flutter only when the supplied project files contain a `pubspec.yaml` with `flutter:`. Markdown and SVG remain traditional Markdown and image files. Office mappings include XLSM/Numbers as Excel, KEY as slides, and RTF/ODT/Pages as documents. `fileExtension` exposes the same basename and final-dot parsing for adjacent metadata labels. Traditional glyphs use a solid category-colored sheet with a white mark and translucent white corner; the generic file uses a grey sheet and darker grey corner. Callers may override the sheet color through `--dsh-file-type-icon-color`. The full-color technology artwork is the deliberate exception and retains its embedded palette. All glyphs are decorative and carry no label. `LinkIcon` remains the smaller leading glyph for clickable artifact links — globe, folder, code, image, document, or plain paper — while `classifyLinkPath` folds the shared file types into that existing six-category vocabulary. `ConnectionIndicator` renders a warning-colored disconnected action, a connecting label whose one-to-three dots advance every 500ms independently of retry timing, or a success-colored recovered status. Hover or keyboard focus shows only the reconnect action label, including while the connecting dots animate. Every state reserves the widest supplied label and uses fixed icon and text columns, so copy changes do not move or resize the control. Its owner supplies visibility, the recovery hold, localized labels, and the immediate-reconnect callback; the primitive uses no native title tooltip. `useAnchoredPosition` and `useAnchoredMaxHeight` keep floating panels and bottom-anchored overlays clamped to the viewport and following their anchor. `HoverCard` keeps its portaled preview reachable across the anchor gap and can expose a copy button through the `copyText` prop. `Toast` holds for the window its owner names through `holdMs`, because how long a banner has to stay depends on how much there is to read; the same value drives its unmount timer and the stylesheet's fade delay, so the two cannot disagree. `rankByName` is the `/` menu's shared candidate ranker for the command and skill sources: the query must be a case-insensitive ordered subsequence of the name; prefix hits rank first, then alignment score, then source order. `Menu.autoFocus` focuses its first enabled item, supports Arrow Up/Down and Home/End navigation, and focuses the first button in the anchor on Escape; it is opt-in for action menus.
 
 ### Rendering agent output
 
@@ -98,6 +98,8 @@ The package is one separation: presentational React atoms with zero Cordis and z
 | [`src/ReadBlock.tsx`](src/ReadBlock.tsx) / [`src/DiffBlock.tsx`](src/DiffBlock.tsx) | Read and diff cards |
 | [`src/SearchBlock.tsx`](src/SearchBlock.tsx) / [`src/WebBlock.tsx`](src/WebBlock.tsx) | Search and web-retrieval cards |
 | [`src/icons/`](src/icons/) | `ic_ds_*` glyph components and brand marks |
+| [`src/code-file-icon-artwork.ts`](src/code-file-icon-artwork.ts) | Embedded inner SVG markup for the 48 detailed code-file categories |
+| [`src/code-file-icon-artwork.manifest.json`](src/code-file-icon-artwork.manifest.json) | Design-export digests, included categories, and intentionally excluded artwork |
 | [`src/useAnchoredPosition.ts`](src/useAnchoredPosition.ts) / [`src/useAnchoredMaxHeight.ts`](src/useAnchoredMaxHeight.ts) | Floating-panel and overlay geometry hooks |
 
 ### Streaming markdown
diff --git a/packages/client/ui-primitives/README.zh.md b/packages/client/ui-primitives/README.zh.md
index e0c90fd14a..a31d48b673 100644
--- a/packages/client/ui-primitives/README.zh.md
+++ b/packages/client/ui-primitives/README.zh.md
@@ -67,7 +67,7 @@ kind: "package-library"
 
 ### 控件与图标
 
-上面的目录说明每个导出的用途；本节讲 props 本身看不出来的行为。`ic_ds_*` 图标集与 `FishLogo`/`BrandWordmark` 标记填充品牌与行内图标 slot。`FileTypeIcon` 渲染传统的 28px Excel、folder、HTML、image、Markdown、generic、PDF、PPT、video 与 Word 图形，并为已识别的代码和配置文件使用全彩方形技术图形。`classifyFileType` 按完整文件名、前缀、后缀、可选项目上下文、扩展名的顺序匹配；React 文件名优先于 TypeScript/JavaScript，Angular 后缀优先于基础扩展名，只有传入的项目文件包含带 `flutter:` 的 `pubspec.yaml` 时 Dart 文件才使用 Flutter。Markdown 与 SVG 仍分别使用传统 Markdown 与图片图形。办公文件映射包含 XLSM/Numbers 的表格图标、KEY 的幻灯片图标，以及 RTF/ODT/Pages 的文档图标。`fileExtension` 为相邻元数据 label 暴露同一套 basename 与最终点号解析。传统图形使用实色分类底板、白色标记和半透明白色折角；通用文件使用灰色底板与较深灰色折角。调用方可通过 `--dsh-file-type-icon-color` 覆盖底板颜色。全彩技术图形是明确例外，会保留其内嵌调色板。所有图形都是装饰性的，不自带 label。`LinkIcon` 仍是可点击产物链接较小的前置分类图形——地球、文件夹、代码、图片、文档或纸张——`classifyLinkPath` 把共享文件类型折叠进原有六类词汇。`ConnectionIndicator` 可渲染警告色的断联操作、以独立于 retry 时序的 500ms 节奏推进一至三个点的连接中状态，或成功色的恢复状态。悬停或键盘聚焦时只显示重连操作文案，连接中的圆点动画也保持隐藏。所有状态都为最长的输入 label 预留空间，并使用固定的图标列和文字列，因此文案变化不会移动控件或改变其宽度。它的 owner 提供可见性、恢复驻留时间、本地化 label 与立即重连回调；该原语不使用原生 title tooltip。`useAnchoredPosition` 与 `useAnchoredMaxHeight` 让浮动面板与底部锚定浮层始终钳制在视口内并跟随锚点。`HoverCard` 通过指针离开宽限期让采用 portal 的预览在跨过锚点间隙时仍可触及，并可通过 `copyText` prop 提供复制按钮。 `Toast` 的停留时长由使用方通过 `holdMs` 指定，因为横幅该留多久取决于有多少内容要读；同一个值同时驱动它的卸载定时器与样式表的淡出延迟，两者不可能再错位。 `rankByName` 是 `/` 菜单命令源与 skill 源共享的候选排序器：查询必须是名字的不区分大小写的有序子序列；前缀命中排最前，其次按对齐分数，再按来源顺序。 `Menu.autoFocus` 聚焦首个启用项，支持上下方向键与 Home/End 导航，并在 Escape 时聚焦 anchor 内的第一个按钮；操作菜单可显式启用。
+上面的目录说明每个导出的用途；本节讲 props 本身看不出来的行为。`ic_ds_*` 图标集与 `FishLogo`/`BrandWordmark` 标记填充品牌与行内图标 slot。`FileTypeIcon` 渲染传统的 28px Excel、folder、HTML、image、Markdown、generic、PDF、PPT、video 与 Word 图形，并为现有 48 个代码和配置类别使用导入的方形技术图形。该导入只替换图形：资源包中额外的类别不会扩展 `CodeFileType`。`classifyFileType` 按完整文件名、前缀、后缀、可选项目上下文、扩展名的顺序匹配；React 文件名优先于 TypeScript/JavaScript，Angular 后缀优先于基础扩展名，只有传入的项目文件包含带 `flutter:` 的 `pubspec.yaml` 时 Dart 文件才使用 Flutter。Markdown 与 SVG 仍分别使用传统 Markdown 与图片图形。办公文件映射包含 XLSM/Numbers 的表格图标、KEY 的幻灯片图标，以及 RTF/ODT/Pages 的文档图标。`fileExtension` 为相邻元数据 label 暴露同一套 basename 与最终点号解析。传统图形使用实色分类底板、白色标记和半透明白色折角；通用文件使用灰色底板与较深灰色折角。调用方可通过 `--dsh-file-type-icon-color` 覆盖底板颜色。全彩技术图形是明确例外，会保留其内嵌调色板。所有图形都是装饰性的，不自带 label。`LinkIcon` 仍是可点击产物链接较小的前置分类图形——地球、文件夹、代码、图片、文档或纸张——`classifyLinkPath` 把共享文件类型折叠进原有六类词汇。`ConnectionIndicator` 可渲染警告色的断联操作、以独立于 retry 时序的 500ms 节奏推进一至三个点的连接中状态，或成功色的恢复状态。悬停或键盘聚焦时只显示重连操作文案，连接中的圆点动画也保持隐藏。所有状态都为最长的输入 label 预留空间，并使用固定的图标列和文字列，因此文案变化不会移动控件或改变其宽度。它的 owner 提供可见性、恢复驻留时间、本地化 label 与立即重连回调；该原语不使用原生 title tooltip。`useAnchoredPosition` 与 `useAnchoredMaxHeight` 让浮动面板与底部锚定浮层始终钳制在视口内并跟随锚点。`HoverCard` 通过指针离开宽限期让采用 portal 的预览在跨过锚点间隙时仍可触及，并可通过 `copyText` prop 提供复制按钮。 `Toast` 的停留时长由使用方通过 `holdMs` 指定，因为横幅该留多久取决于有多少内容要读；同一个值同时驱动它的卸载定时器与样式表的淡出延迟，两者不可能再错位。 `rankByName` 是 `/` 菜单命令源与 skill 源共享的候选排序器：查询必须是名字的不区分大小写的有序子序列；前缀命中排最前，其次按对齐分数，再按来源顺序。 `Menu.autoFocus` 聚焦首个启用项，支持上下方向键与 Home/End 导航，并在 Escape 时聚焦 anchor 内的第一个按钮；操作菜单可显式启用。
 
 ### 渲染 agent 输出
 
@@ -98,6 +98,8 @@ kind: "package-library"
 | [`src/ReadBlock.tsx`](src/ReadBlock.tsx) / [`src/DiffBlock.tsx`](src/DiffBlock.tsx) | 读取与差异卡片 |
 | [`src/SearchBlock.tsx`](src/SearchBlock.tsx) / [`src/WebBlock.tsx`](src/WebBlock.tsx) | 搜索与网页检索卡片 |
 | [`src/icons/`](src/icons/) | `ic_ds_*` 字形组件与品牌标记 |
+| [`src/code-file-icon-artwork.ts`](src/code-file-icon-artwork.ts) | 48 个细分代码文件类别的内嵌内层 SVG markup |
+| [`src/code-file-icon-artwork.manifest.json`](src/code-file-icon-artwork.manifest.json) | 设计导出摘要、已纳入类别与有意排除的图稿 |
 | [`src/useAnchoredPosition.ts`](src/useAnchoredPosition.ts) / [`src/useAnchoredMaxHeight.ts`](src/useAnchoredMaxHeight.ts) | 浮动面板与浮层几何钩子 |
 
 ### 流式 markdown
diff --git a/packages/client/ui-primitives/src/CodeFileIcon.tsx b/packages/client/ui-primitives/src/CodeFileIcon.tsx
index a6f5608153..9e4b540de7 100644
--- a/packages/client/ui-primitives/src/CodeFileIcon.tsx
+++ b/packages/client/ui-primitives/src/CodeFileIcon.tsx
@@ -2,26 +2,7 @@ import { useId } from 'react'
 import type { ReactNode } from 'react'
 import type { IconProps } from './icons/props.ts'
 import type { CodeFileType } from './code-file-types.ts'
-
-/** Non-localizable letterforms that are part of the source-format artwork. */
-const CODE_MARKS = {
-  c: 'C',
-  cpp: 'C',
-  csharp: 'C',
-  css: 'CSS',
-  env: 'ENV',
-  erlang: 'E',
-  ini: 'INI',
-  javascript: 'JS',
-  objectiveC: 'OC',
-  perl: 'PL',
-  php: 'PHP',
-  r: 'R',
-  toml: 'TOML',
-  typescript: 'TS',
-  yaml: 'YAML',
-  zig: 'ZIG',
-} as const
+import { CODE_FILE_ARTWORK, CODE_FILE_ICON_ID_TOKEN } from './code-file-icon-artwork.ts'
 
 /**
  * Render one full-color square code-file glyph from the embedded icon set.
@@ -29,463 +10,19 @@ const CODE_MARKS = {
  * @returns The selected decorative SVG with its identifying palette intact.
  */
 export function CodeFileIcon({ type, size = 20, className }: IconProps & { readonly type: CodeFileType }): ReactNode {
-  const gradientId = useId()
+  const instanceId = `dsh-code-icon-${useId().replaceAll(':', '')}`
+  const artwork = CODE_FILE_ARTWORK[type].replaceAll(CODE_FILE_ICON_ID_TOKEN, instanceId)
+  // Package tests reject unsafe markup and invalid local references in this
+  // static table. Per-instance ids keep gradients and clip paths independent.
   return (
-    <svg width={size} height={size} className={className} viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg" aria-hidden>
-      {codeFileArtwork(type, gradientId)}
-    </svg>
+    <svg
+      width={size}
+      height={size}
+      className={className}
+      viewBox="0 0 20 20"
+      xmlns="http://www.w3.org/2000/svg"
+      aria-hidden
+      dangerouslySetInnerHTML={{ __html: artwork }}
+    />
   )
 }
-
-function codeFileArtwork(type: CodeFileType, gradientId: string): ReactNode {
-  switch (type) {
-    case 'angular':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#DD0031"/>
-          <path fill="none" stroke="#fff" strokeWidth="1.4" strokeLinejoin="round" d="m10 3.4 6 2-1 8-5 3-5-3-1-8z"/>
-          <path fill="#fff" d="m10 5.3-3.7 8.2h1.9l.7-1.8h2.2l.7 1.8h1.9zm0 3.4.5 1.4h-1z"/>
-        </>
-      )
-    case 'c':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#659AD2"/>
-          <path fill="none" stroke="#fff" strokeWidth="1.3" strokeLinejoin="round" d="m10 3.4 6 3.3v6.6l-6 3.3-6-3.3V6.7z"/>
-          <text x="10" y="13.5" textAnchor="middle" fontFamily="Arial,sans-serif" fontSize="9.5" fontWeight="800" fill="#fff">
-            {CODE_MARKS.c}
-          </text>
-        </>
-      )
-    case 'clojure':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#344D70"/>
-          <circle cx="10" cy="10" r="6.6" fill="#fff"/>
-          <path fill="#63B132" d="M9.5 3.5a6.5 6.5 0 0 0-4.7 10.8c1-2.6 2.5-4.3 4.3-5.3-1-1.5-.8-3.4.4-5.5z"/>
-          <path fill="#5881D8" d="M10.7 3.5c1.8 1.6 2.5 3.3 2 5.1 1.5 1.1 2.4 2.8 2.7 5.2a6.5 6.5 0 0 0-4.7-10.3z"/>
-          <path fill="#90B4FE" d="M12 9.8c-1.6.3-2.8 2.1-3.8 5.4a6.4 6.4 0 0 0 6.3-.7c-.2-2.1-1-3.7-2.5-4.7z"/>
-        </>
-      )
-    case 'cmake':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#263A55"/>
-          <path fill="#4D9DCC" d="M10 3 4 16h4.6z"/>
-          <path fill="#43A047" d="M10 3 8.6 16H16z"/>
-          <path fill="#E53935" d="m10 3 6 13-6-5z"/>
-          <path fill="#fff" d="m10 6 2.3 5.1-2.3-1.8-.8 2.9z"/>
-        </>
-      )
-    case 'cpp':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#00599C"/>
-          <path fill="none" stroke="#fff" strokeWidth="1.15" strokeLinejoin="round" d="m10 3.4 6 3.3v6.6l-6 3.3-6-3.3V6.7z"/>
-          <text x="7.8" y="13" textAnchor="middle" fontFamily="Arial,sans-serif" fontSize="8.2" fontWeight="800" fill="#fff">
-            {CODE_MARKS.cpp}
-          </text>
-          <path stroke="#fff" strokeWidth="1.1" d="M12 8.8v3.8m-1.9-1.9h3.8m2-1.9v3.8M14 10.7h3.8"/>
-        </>
-      )
-    case 'csharp':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#68217A"/>
-          <path fill="none" stroke="#fff" strokeWidth="1.15" strokeLinejoin="round" d="m10 3.4 6 3.3v6.6l-6 3.3-6-3.3V6.7z"/>
-          <text x="7.6" y="13" textAnchor="middle" fontFamily="Arial,sans-serif" fontSize="8.2" fontWeight="800" fill="#fff">
-            {CODE_MARKS.csharp}
-          </text>
-          <path stroke="#fff" strokeWidth=".95" d="M11.6 8.6h5m-5 3h5m-3.3-5v7m1.8-7v7"/>
-        </>
-      )
-    case 'css':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#1572B6"/>
-          <text x="10" y="12.8" textAnchor="middle" fontFamily="Arial,sans-serif" fontSize="6.2" fontWeight="900" fill="#fff">
-            {CODE_MARKS.css}
-          </text>
-        </>
-      )
-    case 'dart':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#0175C2"/>
-          <path fill="#fff" d="M5 4h6.5l4.5 4.5-3.2 7.5H8.5L4 11.5z"/>
-          <path fill="#13B9FD" d="m5 4 4 5.5h7L11.5 4zm4 5.5 3.8 6.5H8.5z"/>
-        </>
-      )
-    case 'docker':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#2496ED"/>
-          <path fill="#fff" d="M3 10h11.7c.2-1.2.9-2 2-2.5.5 1 .4 2-.3 2.7.5.1 1 .1 1.5-.1-.7 3.9-3.6 5.9-8.2 5.9C6 16 3.4 14 3 10z"/>
-          <g fill="#2496ED">
-            <path d="M4.5 7h2v2h-2zm2.6 0h2v2h-2zm2.6 0h2v2h-2zM7.1 4.5h2v2h-2zm2.6 0h2v2h-2zm2.6 2.5h2v2h-2z"/>
-          </g>
-        </>
-      )
-    case 'elixir':
-      return (
-        <>
-          <defs>
-            <linearGradient id={gradientId} x1="1" y1="19" x2="19" y2="1">
-              <stop stopColor="#4B275F"/>
-              <stop offset="1" stopColor="#8E6AAF"/>
-            </linearGradient>
-          </defs>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill={`url(#${gradientId})`}/>
-          <path fill="#fff" d="M10.7 3c.2 3.5-4.3 5.8-4.3 9.4 0 2.9 1.8 4.9 4.4 4.9 2.8 0 4.7-1.9 4.7-4.6 0-4.3-3.4-7-4.8-9.7z"/>
-          <path fill="#8E6AAF" d="M10.7 4.8c-.4 3.1-3 5.4-3 7.8 0 1.5.7 2.6 1.9 3-1-3.6 2.8-5.8 1.1-10.8z"/>
-        </>
-      )
-    case 'env':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#ECD53F"/>
-          <text x="10" y="13.2" textAnchor="middle" fontFamily="Arial,sans-serif" fontSize="6.8" fontWeight="900" fill="#24292F">
-            {CODE_MARKS.env}
-          </text>
-        </>
-      )
-    case 'erlang':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#A90533"/>
-          <circle cx="10" cy="10" r="6.4" fill="none" stroke="#fff" strokeWidth="1"/>
-          <text x="10" y="13.8" textAnchor="middle" fontFamily="Georgia,serif" fontSize="10.5" fontWeight="700" fill="#fff">
-            {CODE_MARKS.erlang}
-          </text>
-        </>
-      )
-    case 'flutter':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#027DFD"/>
-          <path fill="#fff" d="m4 10 6-6h4L8 10zm4 0 2.5-2.5H14L11.5 10l2.5 2.5h-3.5z"/>
-          <path fill="#B9E6FF" d="m8 10 4.5 4.5-2 2L4 10z"/>
-        </>
-      )
-    case 'git':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#F05032"/>
-          <rect x="5" y="5" width="10" height="10" rx="1.4" transform="rotate(45 10 10)" fill="#fff"/>
-          <path d="m7.7 7.4 4.9 4.9M9.9 9.6v3.6" fill="none" stroke="#F05032" strokeWidth="1.15"/>
-          <circle cx="7.7" cy="7.4" r="1.1" fill="#F05032"/>
-          <circle cx="12.6" cy="12.3" r="1.1" fill="#F05032"/>
-          <circle cx="9.9" cy="13.2" r="1.1" fill="#F05032"/>
-        </>
-      )
-    case 'go':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#00ADD8"/>
-          <path fill="#fff" d="M3.5 8h6v1.6H5.2a2 2 0 0 0 0 .8h2.4v-.5H6.8V8.7h3.7c.3 3-1 4.4-3.6 4.4S3 11.7 3 9.7c0-.6.2-1.2.5-1.7Zm9.3 0h1.7c1.6 0 2.5 1 2.5 2.5s-.9 2.6-2.5 2.6h-1.7c-1.6 0-2.5-1-2.5-2.6S11.2 8 12.8 8Zm.3 1.6c-.7 0-1 .3-1 .9s.3 1 1 1h1.1c.7 0 1-.4 1-1s-.3-.9-1-.9z"/>
-        </>
-      )
-    case 'graphql':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#E10098"/>
-          <path d="m10 4 5.2 3v6L10 16l-5.2-3V7zm-5 3.2h10M5 12.8h10M10 4l5 8.8M10 4l-5 8.8M10 16 5 7.2m5 8.8 5-8.8" stroke="#fff" strokeWidth=".8"/>
-          <g fill="#fff">
-            <circle cx="10" cy="4" r="1"/>
-            <circle cx="15.2" cy="7" r="1"/>
-            <circle cx="15.2" cy="13" r="1"/>
-            <circle cx="10" cy="16" r="1"/>
-            <circle cx="4.8" cy="13" r="1"/>
-            <circle cx="4.8" cy="7" r="1"/>
-          </g>
-        </>
-      )
-    case 'haskell':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#5D4F85"/>
-          <path fill="#fff" d="m3.5 4.5 3.5 5.5-3.5 5.5h2.7L9.8 10 6.2 4.5zm4 0L11 10l-3.5 5.5h2.7l3.5-5.5-3.5-5.5zm5 3.1 1 1.6H17V7.6zm1.4 3 1 1.7H17v-1.7z"/>
-        </>
-      )
-    case 'ini':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#6E7781"/>
-          <text x="10" y="13.2" textAnchor="middle" fontFamily="Arial,sans-serif" fontSize="7.2" fontWeight="800" fill="#fff">
-            {CODE_MARKS.ini}
-          </text>
-        </>
-      )
-    case 'java':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#427A9B"/>
-          <path d="M9 3.1c2.3 1.7-2.4 2.5.5 4.5m2-4.9c2.3 1.9-3.2 2.9-.2 5" stroke="#FF6B57" strokeWidth="1.15" strokeLinecap="round"/>
-          <path d="M5.4 8.6h8c-.2 3.7-1.3 4.8-4 4.8-2.6 0-3.8-1.2-4-4.8Zm7.8 1h1c1.6 0 1.6 2.5-.5 2.5M4.7 14.8c2.5.8 7.5.8 10.1 0M5.7 16.5c2 .5 6.3.6 8.3 0" stroke="#fff" strokeWidth="1.05" strokeLinecap="round"/>
-        </>
-      )
-    case 'javascript':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#F7DF1E"/>
-          <text x="10" y="14" textAnchor="middle" fontFamily="Arial,sans-serif" fontSize="8.4" fontWeight="800" fill="#191919">
-            {CODE_MARKS.javascript}
-          </text>
-        </>
-      )
-    case 'json':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#4A4A4A"/>
-          <text x="10" y="13.6" textAnchor="middle" fontFamily="Arial,sans-serif" fontSize="9.4" fontWeight="700" fill="#F7DF1E">
-            {'{ }'}
-          </text>
-        </>
-      )
-    case 'kotlin':
-      return (
-        <>
-          <defs>
-            <linearGradient id={gradientId} x1="1" y1="19" x2="19" y2="1">
-              <stop stopColor="#0095D5"/>
-              <stop offset=".5" stopColor="#7F52FF"/>
-              <stop offset="1" stopColor="#F88909"/>
-            </linearGradient>
-          </defs>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill={`url(#${gradientId})`}/>
-          <path fill="#fff" d="M5 5h2.2v4.1L11.1 5h3l-4.6 4.6 5 5.4h-3l-3.6-4-.7.7V15H5z"/>
-        </>
-      )
-    case 'lua':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#000080"/>
-          <circle cx="9" cy="11" r="5.7" fill="none" stroke="#fff" strokeWidth="1"/>
-          <circle cx="13.1" cy="6.6" r="2.3" fill="#000080" stroke="#fff" strokeWidth="1"/>
-          <circle cx="13.8" cy="5.9" r=".65" fill="#fff"/>
-          <circle cx="10.7" cy="9" r=".9" fill="#fff"/>
-        </>
-      )
-    case 'makefile':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#427819"/>
-          <path fill="#fff" d="m5 4.5 2.3 2.3 2.3-2.3L11 5.9 8.7 8.2l2.4 2.4L9.7 12l-2.4-2.4L5 11.9 3.6 10.5l2.3-2.3-2.3-2.3zm7 6.5h4v1.5h-4zm0 2.8h4v1.5h-4z"/>
-        </>
-      )
-    case 'node':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#539E43"/>
-          <path fill="none" stroke="#fff" strokeWidth="1.35" strokeLinejoin="round" d="m10 3.5 6 3.3v6.4l-6 3.3-6-3.3V6.8z"/>
-          <path fill="#fff" d="M6.8 7h1.8l2.8 4.2V7h1.8v6h-1.8L8.6 8.8V13H6.8z"/>
-        </>
-      )
-    case 'objective-c':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#438EFF"/>
-          <text x="10" y="13.2" textAnchor="middle" fontFamily="Arial,sans-serif" fontSize="7.2" fontWeight="800" fill="#fff">
-            {CODE_MARKS.objectiveC}
-          </text>
-        </>
-      )
-    case 'perl':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#39457E"/>
-          <text x="10" y="13.3" textAnchor="middle" fontFamily="Arial,sans-serif" fontSize="7.8" fontWeight="800" fill="#fff">
-            {CODE_MARKS.perl}
-          </text>
-        </>
-      )
-    case 'php':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#777BB4"/>
-          <ellipse cx="10" cy="10" rx="7" ry="4.5" fill="none" stroke="#fff" strokeWidth="1"/>
-          <text x="10" y="12.1" textAnchor="middle" fontFamily="Arial,sans-serif" fontSize="5.8" fontStyle="italic" fontWeight="800" fill="#fff">
-            {CODE_MARKS.php}
-          </text>
-        </>
-      )
-    case 'powershell':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#2671BE"/>
-          <path fill="#fff" fillOpacity=".16" d="M5.5 4h11l-3.5 12H2z"/>
-          <path d="m6.5 6.5 3 3-4.2 3.2m4 1h4" fill="none" stroke="#fff" strokeWidth="1.4" strokeLinecap="round" strokeLinejoin="round"/>
-        </>
-      )
-    case 'protobuf':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#4285F4"/>
-          <path fill="none" stroke="#fff" strokeWidth="1.2" strokeLinejoin="round" d="m10 3.5 6 3.3v6.4l-6 3.3-6-3.3V6.8z"/>
-          <path fill="#fff" d="M6.5 6.5h4.4c2.3 0 3.6 1.2 3.6 3.1s-1.3 3.1-3.6 3.1H9v2H6.5zM9 8.4v2.4h1.6c.8 0 1.2-.4 1.2-1.2s-.4-1.2-1.2-1.2z"/>
-        </>
-      )
-    case 'python':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#306998"/>
-          <path fill="#fff" d="M9.8 3.2c-3.5 0-3.6 1.5-3.6 1.5v2.5H10V8H5s-2.2-.2-2.2 3.3 2 3.4 2 3.4h1.8v-2.6c0-2 1.8-2.4 3.2-2.4H13c1.8 0 2.4-1.4 2.4-3.2S13.8 3.2 12 3.2z"/>
-          <circle cx="8.1" cy="5.1" r=".65" fill="#306998"/>
-          <path fill="#FFD43B" d="M10.2 16.8c3.5 0 3.6-1.5 3.6-1.5v-2.5H10V12h5s2.2.2 2.2-3.3-2-3.4-2-3.4h-1.8v2.6c0 2-1.8 2.4-3.2 2.4H7c-1.8 0-2.4 1.4-2.4 3.2s1.6 3.3 3.4 3.3z"/>
-          <circle cx="11.9" cy="14.9" r=".65" fill="#306998"/>
-        </>
-      )
-    case 'r':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#276DC3"/>
-          <ellipse cx="9" cy="9.4" rx="6.4" ry="4.5" fill="#fff" fillOpacity=".9"/>
-          <ellipse cx="8.3" cy="8.9" rx="4.5" ry="2.8" fill="#276DC3"/>
-          <path fill="#fff" d="M8 7h4c2.2 0 3.4.9 3.4 2.5 0 1-.6 1.7-1.7 2.1l2.5 4.1h-2.7l-2-3.7h-.9v3.7H8zm2.6 1.9v1.4h1c.7 0 1.1-.2 1.1-.7s-.4-.7-1.1-.7z"/>
-        </>
-      )
-    case 'react':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#20232A"/>
-          <circle cx="10" cy="10" r="1.4" fill="#61DAFB"/>
-          <g stroke="#61DAFB" strokeWidth="1">
-            <ellipse cx="10" cy="10" rx="6.8" ry="2.7"/>
-            <ellipse cx="10" cy="10" rx="6.8" ry="2.7" transform="rotate(60 10 10)"/>
-            <ellipse cx="10" cy="10" rx="6.8" ry="2.7" transform="rotate(120 10 10)"/>
-          </g>
-        </>
-      )
-    case 'ruby':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#B51F27"/>
-          <path fill="#fff" d="m4 7 3-3h6l3 3-6 9-6-6z"/>
-          <path fill="#F15A4A" d="m7 4 1.8 3H4zm1.8 3L13 4l3 3zm0 0L10 16 4 10zm0 0H16l-6 9z"/>
-        </>
-      )
-    case 'rust':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#2B2B2B"/>
-          <path fill="#DEA584" d="m10 2.8.7 1.3 1.4-.4.1 1.5 1.5.2-.6 1.4 1.3.8-.1.1 1.4.7-.9 1.2 1 1.1-1.2.8.6 1.3-1.4.4.3 1.5-1.5.1-.4 1.4-1.3-.5-.9 1.2-.9-1.2-1.3.5-.4-1.4-1.5-.1.3-1.5-1.4-.4.6-1.3-1.2-.8 1-1.1-.9-1.2 1.4-.7-.1-.1 1.3-.8-.6-1.4 1.5-.2.1-1.5 1.4.4z"/>
-          <circle cx="10" cy="10" r="4.6" fill="#2B2B2B"/>
-          <text x="10" y="13.1" textAnchor="middle" fontFamily="Georgia,serif" fontSize="8.2" fontWeight="700" fill="#DEA584">
-            {CODE_MARKS.r}
-          </text>
-        </>
-      )
-    case 'scala':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#DE3423"/>
-          <path fill="#fff" d="M5 4.2c3.3 1.1 6.7-.3 10-.9v3.3c-3.3.5-6.7 2-10 .8zm0 4.7c3.3 1.2 6.7-.3 10-.8v3.3c-3.3.5-6.7 1.9-10 .8zm0 4.7c3.3 1.2 6.7-.3 10-.8v3.3c-3.3.5-6.7 1.9-10 .8z"/>
-        </>
-      )
-    case 'shell':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#303642"/>
-          <path d="m5 6.5 3.5 3.5L5 13.5m5 0h5" fill="none" stroke="#7EE787" strokeWidth="1.5" strokeLinecap="round" strokeLinejoin="round"/>
-        </>
-      )
-    case 'solidity':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#555"/>
-          <path fill="#fff" d="M7.2 3.2h5.6L10 8zm-.5.8 2.8 4.8H4zm6.6 0L16 8.8h-5.5zM4 10.3h5.5l-2.8 4.8zm6.5 0H16l-2.7 4.8zM10 11.2l2.8 4.8H7.2z"/>
-        </>
-      )
-    case 'sql':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#336791"/>
-          <ellipse cx="10" cy="5.5" rx="5.8" ry="2.1" fill="#fff"/>
-          <path fill="#fff" fillOpacity=".88" d="M4.2 5.5v8.9c0 1.2 2.6 2.1 5.8 2.1s5.8-.9 5.8-2.1V5.5c0 1.2-2.6 2.1-5.8 2.1s-5.8-.9-5.8-2.1z"/>
-          <path d="M4.2 9.2c0 1.2 2.6 2.1 5.8 2.1s5.8-.9 5.8-2.1M4.2 12.9c0 1.2 2.6 2.1 5.8 2.1s5.8-.9 5.8-2.1" fill="none" stroke="#336791" strokeOpacity=".7" strokeWidth=".7"/>
-        </>
-      )
-    case 'svelte':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#FF3E00"/>
-          <path d="M13.9 6.1c-.9-1.1-2.6-1.4-3.8-.7L7 7.4c-1.2.8-1.5 2.4-.7 3.6.7 1 2 1.4 3.1 1l3-1.2c.5-.2 1 .1 1.2.5.2.4 0 .9-.4 1.2l-3.1 2c-.5.3-1.1.2-1.5-.2" stroke="#fff" strokeWidth="1.6" strokeLinecap="round"/>
-          <path d="M6.1 13.9c.9 1.1 2.6 1.4 3.8.7l3.1-2c1.2-.8 1.5-2.4.7-3.6-.7-1-2-1.4-3.1-1l-3 1.2c-.5.2-1-.1-1.2-.5-.2-.4 0-.9.4-1.2l3.1-2c.5-.3 1.1-.2 1.5.2" stroke="#fff" strokeWidth="1.6" strokeLinecap="round"/>
-        </>
-      )
-    case 'swift':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#F05138"/>
-          <path fill="#fff" d="M15.9 14.9c.3-3.6-1.2-6.2-3.8-8.4 1.1 1.5 1.7 2.9 1.9 4.1C10.9 8.4 8 6 5.4 3.7c1.6 2.3 3.4 4.4 5.4 6.2-1.7-1-3.5-2.2-5.6-3.7 2.3 3 4.7 5.1 7.3 6.1-2 .9-4.5.7-7.2-.8 2.2 3.2 5.6 4.1 8.3 2.4.8.4 1.6.8 2.3 1z"/>
-        </>
-      )
-    case 'toml':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#9C4121"/>
-          <text x="10" y="12.9" textAnchor="middle" fontFamily="Arial,sans-serif" fontSize="5.6" fontWeight="800" fill="#fff">
-            {CODE_MARKS.toml}
-          </text>
-        </>
-      )
-    case 'typescript':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#3178C6"/>
-          <text x="10" y="14" textAnchor="middle" fontFamily="Arial,sans-serif" fontSize="8.4" fontWeight="800" fill="#fff">
-            {CODE_MARKS.typescript}
-          </text>
-        </>
-      )
-    case 'vue':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#41B883"/>
-          <path fill="#fff" d="M3.5 5h3.2l3.3 5.7L13.3 5h3.2L10 16z"/>
-          <path fill="#35495E" d="M6.7 5H9l1 1.8L11 5h2.3L10 10.7z"/>
-        </>
-      )
-    case 'wasm':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#654FF0"/>
-          <path fill="#fff" d="M4 6h2l.8 5.1L8 7h2l1.2 4.1L12 6h2l-1.7 8h-2l-1.3-4-1.3 4h-2zm10.5 0H17v8h-2V8h-.5z"/>
-        </>
-      )
-    case 'xml':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#F28C28"/>
-          <path d="m7.5 6-4 4 4 4m5-8 4 4-4 4M11 5 9 15" fill="none" stroke="#fff" strokeWidth="1.5" strokeLinecap="round" strokeLinejoin="round"/>
-        </>
-      )
-    case 'yaml':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#CB171E"/>
-          <text x="10" y="12.9" textAnchor="middle" fontFamily="Arial,sans-serif" fontSize="5.6" fontWeight="800" fill="#fff">
-            {CODE_MARKS.yaml}
-          </text>
-        </>
-      )
-    case 'zig':
-      return (
-        <>
-          <rect x="1" y="1" width="18" height="18" rx="4" fill="#F7A41D"/>
-          <path fill="#fff" d="M3.5 6h4L6 7.5h5L7.5 12h5L11 14h5.5l-.8-3 1-5h-4.4L14 7.5h-3.7L13 4.2H6L7.3 6z"/>
-          <text x="10" y="12.2" textAnchor="middle" fontFamily="Arial,sans-serif" fontSize="4.6" fontWeight="900" fill="#F7A41D">
-            {CODE_MARKS.zig}
-          </text>
-        </>
-      )
-    /* v8 ignore next -- closed-union backstop; only reached if a type is forged */
-    default: return assertNever(type)
-  }
-}
-
-/** Closed-union exhaustiveness guard for the embedded artwork table. */
-/* v8 ignore next 3 -- only reachable when an untyped caller forges a code file type */
-function assertNever(value: never): never {
-  throw new Error(`unreachable code file type: ${String(value)}`)
-}
diff --git a/packages/client/ui-primitives/src/code-file-icon-artwork.manifest.json b/packages/client/ui-primitives/src/code-file-icon-artwork.manifest.json
new file mode 100644
index 0000000000..b38a0325cf
--- /dev/null
+++ b/packages/client/ui-primitives/src/code-file-icon-artwork.manifest.json
@@ -0,0 +1,71 @@
+{
+  "version": 1,
+  "owner": "DeepSeek Harness product design",
+  "sources": [
+    {
+      "name": "square-icons-export",
+      "kind": "internal-design-export",
+      "sha256": "9b90bec3e20d99f179126d0981da01bcffa14060a284a844a0073472919e230e",
+      "icons": [
+        "angular",
+        "c",
+        "clojure",
+        "cmake",
+        "cpp",
+        "csharp",
+        "css",
+        "dart",
+        "docker",
+        "elixir",
+        "env",
+        "erlang",
+        "flutter",
+        "git",
+        "go",
+        "graphql",
+        "haskell",
+        "ini",
+        "java",
+        "javascript",
+        "json",
+        "kotlin",
+        "lua",
+        "makefile",
+        "node",
+        "objective-c",
+        "perl",
+        "php",
+        "powershell",
+        "protobuf",
+        "python",
+        "r",
+        "react",
+        "ruby",
+        "rust",
+        "scala",
+        "shell",
+        "solidity",
+        "sql",
+        "svelte",
+        "toml",
+        "typescript",
+        "vue",
+        "wasm",
+        "xml",
+        "yaml",
+        "zig"
+      ]
+    },
+    {
+      "name": "swift-square-icon",
+      "kind": "internal-design-export",
+      "sha256": "2afa6d5db27f6f9da5a2011613410891ef904f55420187bb7cc88a350daaa0bf",
+      "icons": [
+        "swift"
+      ]
+    }
+  ],
+  "excluded": [
+    "markdown"
+  ]
+}
diff --git a/packages/client/ui-primitives/src/code-file-icon-artwork.ts b/packages/client/ui-primitives/src/code-file-icon-artwork.ts
new file mode 100644
index 0000000000..21e05c861f
--- /dev/null
+++ b/packages/client/ui-primitives/src/code-file-icon-artwork.ts
@@ -0,0 +1,60 @@
+/**
+ * Embedded square code-icon artwork. The adjacent manifest records the design
+ * export digests; the 48 keys match CODE_FILE_TYPES exactly.
+ */
+import type { CodeFileType } from './code-file-types.ts'
+
+/** Placeholder replaced with one React-instance id before SVG insertion. */
+export const CODE_FILE_ICON_ID_TOKEN = '__DSH_CODE_ICON_INSTANCE__'
+
+/** Validated inner SVG markup for the established detailed code categories. */
+export const CODE_FILE_ARTWORK = Object.freeze({
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+  'c': '<rect x="1" y="1" width="18" height="18" rx="4" fill="#EEF4F8" stroke="#DDE2E8" stroke-width=".5"/><g transform="translate(3 3) scale(.5833333333)"><path fill="#659AD2" d="M16.5921 9.1962s-.354-3.298-3.627-3.39c-3.2741-.09-4.9552 2.474-4.9552 6.14 0 3.6651 1.858 6.5972 5.0451 6.5972 3.184 0 3.5381-3.665 3.5381-3.665l6.1041.365s.36 3.31-2.196 5.836c-2.552 2.5241-5.6901 2.9371-7.8762 2.9201-2.19-.017-5.2261.034-8.1602-2.97-2.938-3.0101-3.436-5.9302-3.436-8.8002 0-2.8701.556-6.6702 4.047-9.5502C7.444.72 9.849 0 12.254 0c10.0422 0 10.7172 9.2602 10.7172 9.2602z"/></g>',
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+  'swift': '<defs><clipPath id="__DSH_CODE_ICON_INSTANCE__a"><rect x="1" y="1" width="18" height="18" rx="4"/></clipPath></defs><g clip-path="url(#__DSH_CODE_ICON_INSTANCE__a)"><svg x="1" y="1" width="18" height="18" viewBox="0 0 128 128" preserveAspectRatio="xMidYMid meet"><path fill="#f05138" d="M126.33 34.06a39.32 39.32 0 00-.79-7.83 28.78 28.78 0 00-2.65-7.58 28.84 28.84 0 00-4.76-6.32 23.42 23.42 0 00-6.62-4.55 27.27 27.27 0 00-7.68-2.53c-2.65-.51-5.56-.51-8.21-.76H30.25a45.46 45.46 0 00-6.09.51 21.82 21.82 0 00-5.82 1.52c-.53.25-1.32.51-1.85.76a33.82 33.82 0 00-5 3.28c-.53.51-1.06.76-1.59 1.26a22.41 22.41 0 00-4.76 6.32 23.61 23.61 0 00-2.65 7.58 78.5 78.5 0 00-.79 7.83v60.39a39.32 39.32 0 00.79 7.83 28.78 28.78 0 002.65 7.58 28.84 28.84 0 004.76 6.32 23.42 23.42 0 006.62 4.55 27.27 27.27 0 007.68 2.53c2.65.51 5.56.51 8.21.76h63.22a45.08 45.08 0 008.21-.76 27.27 27.27 0 007.68-2.53 30.13 30.13 0 006.62-4.55 22.41 22.41 0 004.76-6.32 23.61 23.61 0 002.65-7.58 78.49 78.49 0 00.79-7.83V34.06z"/><path fill="#fefefe" d="M85 96.5c-11.11 6.13-26.38 6.76-41.75.47A64.53 64.53 0 0113.84 73a50 50 0 0010.85 6.32c15.87 7.1 31.73 6.61 42.9 0-15.9-11.66-29.4-26.82-39.46-39.2a43.47 43.47 0 01-5.29-6.82c12.16 10.61 31.5 24 38.38 27.79a271.77 271.77 0 01-27-32.34 266.8 266.8 0 0044.47 34.87c.71.38 1.26.7 1.7 1a32.7 32.7 0 001.21-3.51c3.71-12.89-.53-27.54-9.79-39.67C93.25 33.81 106 57.05 100.66 76.51c-.14.53-.29 1-.45 1.55l.19.22c10.59 12.63 7.68 26 6.35 23.5C101 91 90.37 94.33 85 96.5z"/></svg></g>',
+  'toml': '<rect x="1" y="1" width="18" height="18" rx="4" fill="#F6EEEA" stroke="#DDE2E8" stroke-width=".5"/><g transform="translate(3 3) scale(.5833333333)"><path fill="#9C4121" d="M.014 0h5.34v2.652H2.888v18.681h2.468V24H.015V0Zm17.622 5.049v2.78h-4.274v12.935h-3.008V7.83H6.059V5.05h11.577ZM23.986 24h-5.34v-2.652h2.467V2.667h-2.468V0h5.34v24Z"/></g>',
+  'typescript': '<defs><clipPath id="__DSH_CODE_ICON_INSTANCE__a"><rect x="1" y="1" width="18" height="18" rx="4"/></clipPath></defs><g clip-path="url(#__DSH_CODE_ICON_INSTANCE__a)"><svg x="1" y="1" width="18" height="18" viewBox="0 0 128 128" preserveAspectRatio="xMidYMid meet"><path fill="#fff" d="M22.67 47h99.67v73.67H22.67z"/><path data-name="original" fill="#007acc" d="M1.5 63.91v62.5h125v-125H1.5zm100.73-5a15.56 15.56 0 017.82 4.5 20.58 20.58 0 013 4c0 .16-5.4 3.81-8.69 5.85-.12.08-.6-.44-1.13-1.23a7.09 7.09 0 00-5.87-3.53c-3.79-.26-6.23 1.73-6.21 5a4.58 4.58 0 00.54 2.34c.83 1.73 2.38 2.76 7.24 4.86 8.95 3.85 12.78 6.39 15.16 10 2.66 4 3.25 10.46 1.45 15.24-2 5.2-6.9 8.73-13.83 9.9a38.32 38.32 0 01-9.52-.1 23 23 0 01-12.72-6.63c-1.15-1.27-3.39-4.58-3.25-4.82a9.34 9.34 0 011.15-.73L82 101l3.59-2.08.75 1.11a16.78 16.78 0 004.74 4.54c4 2.1 9.46 1.81 12.16-.62a5.43 5.43 0 00.69-6.92c-1-1.39-3-2.56-8.59-5-6.45-2.78-9.23-4.5-11.77-7.24a16.48 16.48 0 01-3.43-6.25 25 25 0 01-.22-8c1.33-6.23 6-10.58 12.82-11.87a31.66 31.66 0 019.49.26zm-29.34 5.24v5.12H56.66v46.23H45.15V69.26H28.88v-5a49.19 49.19 0 01.12-5.17C29.08 59 39 59 51 59h21.83z"/></svg></g>',
+  'vue': '<rect x="1" y="1" width="18" height="18" rx="4" fill="#ECF8F3" stroke="#D5EAE0" stroke-width=".5"/><path fill="#41B883" d="M3.5 5h3.2l3.3 5.7L13.3 5h3.2L10 16z"/><path fill="#35495E" d="M6.7 5H9l1 1.8L11 5h2.3L10 10.7z"/>',
+  'wasm': '<defs><clipPath id="__DSH_CODE_ICON_INSTANCE__a"><rect x="1" y="1" width="18" height="18" rx="4"/></clipPath></defs><g clip-path="url(#__DSH_CODE_ICON_INSTANCE__a)"><svg x="1" y="1" width="18" height="18" viewBox="0 0 128 128" preserveAspectRatio="xMidYMid meet"><path fill="#654ff0" d="M.223.222v127.555h127.555V.222H78.594c.014.227.036.455.036.686 0 8.08-6.55 14.626-14.63 14.626-8.078 0-14.625-6.546-14.625-14.626 0-.231.022-.459.031-.686zm29.595 68.746h8.445l5.782 30.738h.107l6.968-30.738h7.908l6.265 31.119h.106l6.597-31.119h8.284l-10.765 45.156H61.12l-6.213-30.738H54.8l-6.7 30.738h-8.557zm59.994 0h13.334l13.284 45.156h-8.77l-2.879-10.051H89.59l-2.212 10.05h-8.5ZM94.895 80.1l-3.684 16.57h11.473L98.448 80.1Z"/></svg></g>',
+  'xml': '<rect x="1" y="1" width="18" height="18" rx="4" fill="#EAF3FA" stroke="#DDE2E8" stroke-width=".5"/><g transform="translate(3 3) scale(.5833333333)"><path fill="#005FAD" d="M4.345 7.053c-.495.02-.44.725-.536 1.081-.157.583-.3 1.325-.347 1.926-.046.585-.008 1.127.066 1.719.058.46.191.767.07.89-.108.11-3.216 2.962-3.466 3.123-.26.169-.08.584.069.817.157.246.23.373.557.33.306-.042.405-.409.583-.606.228-.252 2.421-2.401 2.616-2.401.077.544.367 1.064.67 1.513.15.222.314.439.505.629.175.175.4.317.587.45.44.024.795-.301.35-.67-.17-.14-.735-.971-.927-1.43-.18-.43-.574-1.076-.146-1.428 1.494-1.23 3.72-2.262 4.247-2.313-.257 1.024-1.356 3.048-1.757 4.012-.14.333-.231.732-.185 1.094.055.434.383.774.587.806.417-.023.7-.387.946-.645.343-.357.634-.685.974-1.043.339-.356.672-.731.971-1.07.184-.207.674-.713.963-.713-.11.693-.716 1.552-.839 2.254-.125.716.531 1.596 1.217.956.623-.58 1.255-1.129 1.867-1.72.217-.208.175.037.224.242.05.208.176.91.275 1.1.18.346.496.592.897.598.362.006.727-.161.982-.414.19-.187.513-.699.154-.832-.23-.086-.217-.176-.495-.129-.172.029-.362.074-.507.179-.367-.003-.381-.89-.324-1.161.068-.327.207-.659.185-.998-.026-.418-.478-.69-.582-.72-.156-.076-.253.023-.458.212-.173.161-.363.332-.535.495-.34.322-.768.813-.942.813.305-.705.708-2.652-.643-2.48-.563.071-.95.377-1.394.71-.29.28-.683.641-.936.87-.236.216-.371.404-.496.404.132-.747 1.685-3.167.885-3.853-.158-.136-.313-.325-.515-.349a4.637 4.637 0 0 0-.833.19c-.565.18-2.78 1.28-4.19 2.289-.131.094-.214-.085-.231-.29-.087-1.058.199-2.19.496-3.188.208-.696-.557-1.225-.659-1.249zm18.177.874c-.166.364-.2.894-.248 1.319a24.307 24.307 0 0 0-1.246-.115c.238.296.691.588 1.056.724-.048.366-.434.67-.599 1.021.458-.127.676-.47.989-.821.362.22.791.627 1.26.636-.177-.376-.334-.695-.658-.966.269-.175.717-.362.924-.633-.345-.074-.718-.093-1.052-.015-.258-.284-.3-.772-.426-1.15zm-2.92.079c-.23.02-.613.49-.832.773-.807 1.039-1.542 3.15-1.661 3.542-.363 1.195-.502 2.672.28 3.722.456.612 1.258.66 2.041.434.405-.116.812-.406.95-.723.114-.263.174-.753-.404-.38-.224.145-.634.304-1.37.291-.247-.004-.651-.357-.76-.722-.192-.595-.11-1.393-.11-1.393.167-1.028.642-2.146 1.061-3.076.163-.36.658-1.259.842-1.546 0 0 .239-.373.131-.77-.031-.116-.091-.16-.168-.152zm3.072 2.976c-.12.264-.144.648-.18.956-.274-.031-.63-.066-.904-.083.172.215.501.426.766.525-.034.265-.314.486-.434.741.332-.092.49-.34.717-.596.263.16.575.456.914.462-.127-.273-.242-.504-.477-.701.195-.127.52-.262.67-.46a1.77 1.77 0 0 0-.763-.01c-.187-.206-.217-.56-.309-.834zm-1.123 2.422c-.083.183-.1.449-.125.662a12.6 12.6 0 0 0-.624-.058c.119.148.346.295.53.363-.025.184-.219.336-.301.513.23-.064.339-.236.496-.413.181.11.397.316.632.32-.088-.19-.168-.349-.33-.485.135-.087.36-.181.463-.317a1.22 1.22 0 0 0-.527-.008c-.13-.142-.151-.387-.214-.576z"/></g>',
+  'yaml': '<rect x="1" y="1" width="18" height="18" rx="4" fill="#FCEEEF" stroke="#F0D8DB" stroke-width=".5"/><svg x="2.75" y="2.75" width="14.5" height="14.5" viewBox="0 0 128 128" preserveAspectRatio="xMidYMid meet">\n<polygon transform="matrix(.24805 0 0 .24805 .5 5.6287)" points="87.702 137.67 0 0 63.25 0 119.02 88.646 175.24 0 235.79 0 143.98 137.67 143.98 224.95 87.702 224.95"/>\n<path d="m82.428 49.149h-25.266l-5.1388 12.408h-11.188l23.659-55.798h11.444l22.699 55.798h-11.956l-4.2525-12.408zm-4.197-11.14-7.7455-20.476-8.6412 20.476z" fill="#cb171e"/>\n<polygon transform="matrix(.24805 0 0 .24805 .5 5.6287)" points="87.701 250.18 87.701 470.65 135 470.65 135 318.57 184.51 420.79 221.74 420.79 272.94 314.98 272.94 470.6 318.32 470.6 318.32 250.18 256.36 250.18 201.38 349.88 149.02 250.18"/>\n<polygon transform="matrix(.24805 0 0 .24805 .5 5.6287)" points="512 422.74 512 422.74 395.64 422.74 395.64 250.12 347.44 250.12 347.44 469.65 512 469.65"/>\n</svg>',
+  'zig': '<rect x="1" y="1" width="18" height="18" rx="4" fill="#FFF4DF" stroke="#DDE2E8" stroke-width=".5"/><g transform="translate(3 3) scale(.5833333333)"><path fill="#E18A00" d="m23.53 1.02-7.686 3.45h-7.06l-2.98 3.452h7.173L.47 22.98l7.681-3.607h7.065v-.002l2.978-3.45-7.148-.001 12.482-14.9zM0 4.47v14.901h1.883l2.98-3.45H3.451v-8h.942l2.824-3.45H0zm22.117 0-2.98 3.608h1.412v7.844h-.942l-2.98 3.45H24V4.47h-1.883z"/></g>',
+}) satisfies Readonly<Record<CodeFileType, string>>
diff --git a/packages/client/ui-primitives/tests/code-file-icon.client.spec.tsx b/packages/client/ui-primitives/tests/code-file-icon.client.spec.tsx
index f8b155e871..462774952d 100644
--- a/packages/client/ui-primitives/tests/code-file-icon.client.spec.tsx
+++ b/packages/client/ui-primitives/tests/code-file-icon.client.spec.tsx
@@ -1,9 +1,12 @@
 // @vitest-environment jsdom
+import { readFileSync } from 'node:fs'
+import { resolve } from 'node:path'
 import { cleanup, render } from '@testing-library/react'
 import { afterEach, describe, expect, it } from 'vitest'
 import {
   classifyFileType, FileTypeIcon, type CodeFileType, type FileTypeProjectContext,
 } from '@deepseek-ai/dsh-client-ui-primitives'
+import { CODE_FILE_ARTWORK, CODE_FILE_ICON_ID_TOKEN } from '../src/code-file-icon-artwork.ts'
 import { CODE_FILE_TYPES } from '../src/code-file-types.ts'
 
 afterEach(cleanup)
@@ -12,6 +15,10 @@ const flutter: FileTypeProjectContext = {
   files: { 'config/pubspec.yaml': 'name: demo\ndependencies:\n  flutter: sdk' },
 }
 
+function normalizeCodeIconIds(html: string): string {
+  return html.replace(/dsh-code-icon-[A-Za-z0-9_-]+/gu, 'dsh-code-icon-instance')
+}
+
 describe('code-file classification', () => {
   it.each([
     ['app.component.ts', 'angular'],
@@ -80,7 +87,8 @@ describe('code-file classification', () => {
 
     const view = render(<FileTypeIcon path="lib/main.dart" context={flutter} />)
     const explicit = render(<FileTypeIcon kind="flutter" />)
-    expect(view.container.innerHTML).toBe(explicit.container.innerHTML)
+    expect(normalizeCodeIconIds(view.container.innerHTML))
+      .toBe(normalizeCodeIconIds(explicit.container.innerHTML))
   })
 
   it('keeps Markdown and SVG on the traditional file artwork', () => {
@@ -90,6 +98,40 @@ describe('code-file classification', () => {
 })
 
 describe('full-color code-file artwork', () => {
+  it('embeds exactly the established 48 code categories', () => {
+    expect(Object.keys(CODE_FILE_ARTWORK)).toEqual([...CODE_FILE_TYPES])
+    expect(CODE_FILE_ARTWORK).not.toHaveProperty('markdown')
+    for (const [type, artwork] of Object.entries(CODE_FILE_ARTWORK)) {
+      expect(artwork).not.toMatch(/<(?:script|style|foreignObject)\b|\son[a-z]+\s*=/iu)
+      expect(artwork).not.toMatch(/(?:href|xlink:href)="(?!#)/iu)
+      const ids = [...artwork.matchAll(/\bid="([^"]+)"/gu)].map(match => match[1]!)
+      expect(new Set(ids).size, `${type} has duplicate SVG ids`).toBe(ids.length)
+      for (const id of ids) expect(id).toMatch(new RegExp(`^${CODE_FILE_ICON_ID_TOKEN}`))
+      const references = [
+        ...[...artwork.matchAll(/url\(#([^)]+)\)/gu)].map(match => match[1]!),
+        ...[...artwork.matchAll(/(?:href|xlink:href)="#([^"]+)"/gu)].map(match => match[1]!),
+      ]
+      for (const reference of references) {
+        expect(reference).toMatch(new RegExp(`^${CODE_FILE_ICON_ID_TOKEN}`))
+        expect(ids).toContain(reference)
+      }
+    }
+  })
+
+  it('records the design exports that supply the closed artwork set', () => {
+    const path = resolve('packages/client/ui-primitives/src/code-file-icon-artwork.manifest.json')
+    const manifest = JSON.parse(readFileSync(path, 'utf8')) as {
+      owner: string
+      sources: Array<{ kind: string; sha256: string; icons: string[] }>
+      excluded: string[]
+    }
+    expect(manifest.owner).toBe('DeepSeek Harness product design')
+    expect(manifest.sources.every(source => source.kind === 'internal-design-export')).toBe(true)
+    expect(manifest.sources.every(source => /^[0-9a-f]{64}$/u.test(source.sha256))).toBe(true)
+    expect(manifest.sources.flatMap(source => source.icons).sort()).toEqual([...CODE_FILE_TYPES].sort())
+    expect(manifest.excluded).toEqual(['markdown'])
+  })
+
   it.each(CODE_FILE_TYPES)('%s renders its supplied square SVG', (type) => {
     const { container } = render(<FileTypeIcon kind={type} />)
     const svg = container.querySelector('svg')!
@@ -110,9 +152,16 @@ describe('full-color code-file artwork', () => {
 
   it('uses instance-safe gradient ids and forwards sizing classes', () => {
     const { container } = render(<><FileTypeIcon kind="elixir" /><FileTypeIcon kind="elixir" /></>)
-    const ids = [...container.querySelectorAll('linearGradient')].map(gradient => gradient.id)
-    expect(new Set(ids).size).toBe(2)
-    expect([...container.querySelectorAll('rect')].map(rect => rect.getAttribute('fill'))).toEqual(ids.map(id => `url(#${id})`))
+    const ids = [...container.querySelectorAll('[id]')].map(element => element.id)
+    expect(ids.length).toBeGreaterThan(2)
+    expect(new Set(ids).size).toBe(ids.length)
+    expect(container.innerHTML).not.toContain(CODE_FILE_ICON_ID_TOKEN)
+    const references = [...container.querySelectorAll('*')].flatMap(element =>
+      [...element.attributes].flatMap(attribute =>
+        [...attribute.value.matchAll(/url\(#([^)]+)\)/gu)].map(match => match[1])),
+    )
+    expect(references.length).toBeGreaterThan(0)
+    for (const reference of references) expect(ids).toContain(reference)
 
     const sized = render(<FileTypeIcon path="file.ts" size={16} className="x" />)
     const svg = sized.container.querySelector('svg')!
diff --git a/packages/feedback/command-feedback/README.i18n.yaml b/packages/feedback/command-feedback/README.i18n.yaml
index 06dfff0493..b00c685b24 100644
--- a/packages/feedback/command-feedback/README.i18n.yaml
+++ b/packages/feedback/command-feedback/README.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write packages/feedback/command-feedback/README.md
-README.md: ad310f15b5b5b49fe879e063bd7d3c7c5518ebb8
-README.zh.md: d0a4ab64a0f41165c291d974684cf2c7b241e7a4
+README.md: 5156918301509023f949af1ae7487bec14814d88
+README.zh.md: 3ee5fa4530c0ea464204ce40ef756d4d3cf2314b
diff --git a/packages/feedback/command-feedback/README.md b/packages/feedback/command-feedback/README.md
index ad310f15b5..5156918301 100644
--- a/packages/feedback/command-feedback/README.md
+++ b/packages/feedback/command-feedback/README.md
@@ -48,7 +48,7 @@ In the Web client a bare `/feedback` — picked from the composer menu or typed
 | `task-result` | The outcome of the task |
 | `instruction-following` | Understanding and following instructions |
 | `product-interaction` | Product features and interaction |
-| `service-stability` | Service stability |
+| `service-stability` | Stability and speed |
 | `resource-cost` | Resource usage and cost |
 | `security-privacy-permission` | Security, privacy, and permissions |
 | `other` | Anything else |
diff --git a/packages/feedback/command-feedback/README.zh.md b/packages/feedback/command-feedback/README.zh.md
index d0a4ab64a0..3ee5fa4530 100644
--- a/packages/feedback/command-feedback/README.zh.md
+++ b/packages/feedback/command-feedback/README.zh.md
@@ -48,7 +48,7 @@ kind: "package-reference"
 | `task-result` | 任务结果 |
 | `instruction-following` | 指令理解与遵循 |
 | `product-interaction` | 产品功能与交互 |
-| `service-stability` | 服务稳定性 |
+| `service-stability` | 稳定性和速度 |
 | `resource-cost` | 资源使用与费用 |
 | `security-privacy-permission` | 安全隐私与权限 |
 | `other` | 其他 |
diff --git a/packages/feedback/message-feedback/src/types.ts b/packages/feedback/message-feedback/src/types.ts
index 2969bd87fb..a844ca9870 100644
--- a/packages/feedback/message-feedback/src/types.ts
+++ b/packages/feedback/message-feedback/src/types.ts
@@ -24,7 +24,7 @@ export interface MessageFeedbackItem {
   readonly rating: MessageFeedbackRating
   /** Optional explanation, preserved verbatim after validation. */
   readonly note?: string
-  /** Category the human filed a negative judgment under. */
+  /** Category the human filed the judgment under. */
   readonly category?: FeedbackCategory
   /** Equality-only token replaced by every material create or update. */
   readonly version: MessageFeedbackVersion
diff --git a/snapshots/web/feedback-release/feedback-release.expected.json b/snapshots/web/feedback-release/feedback-release.expected.json
index a156f96066..994953b4ef 100644
--- a/snapshots/web/feedback-release/feedback-release.expected.json
+++ b/snapshots/web/feedback-release/feedback-release.expected.json
@@ -11,7 +11,9 @@
     },
     {
       "type": "feedback/message-put",
-      "rating": "positive"
+      "rating": "positive",
+      "note": "Clear and complete.",
+      "category": "instruction-following"
     },
     {
       "type": "feedback/message-put",

From a30530342297e6006623a775166fee1d14fd413a Mon Sep 17 00:00:00 2001
From: Yichen Jiang <jyc132780208@sina.com>
Date: Thu, 10 Sep 2026 21:38:20 +0800
Subject: [PATCH 32/32] release(dsh): 0.1.5-rc.2

---
 apps/cli/package.json                                          | 2 +-
 apps/desktop-host/package.json                                 | 2 +-
 apps/desktop/package.json                                      | 2 +-
 apps/web/package.json                                          | 2 +-
 package.json                                                   | 2 +-
 packages/acp/acp/package.json                                  | 2 +-
 packages/api/gateway/package.json                              | 2 +-
 packages/api/remotes/package.json                              | 2 +-
 packages/api/session-controller/package.json                   | 2 +-
 packages/api/settings-controller/package.json                  | 2 +-
 packages/api/workspace-controller/package.json                 | 2 +-
 packages/api/workspace-files/package.json                      | 2 +-
 packages/attachment/attachment-local/package.json              | 2 +-
 packages/attachment/attachment/package.json                    | 2 +-
 packages/boot/app-boot/package.json                            | 2 +-
 packages/boot/cmdline/package.json                             | 2 +-
 packages/bundle/acp-app/package.json                           | 2 +-
 packages/bundle/base/package.json                              | 2 +-
 packages/bundle/headless/package.json                          | 2 +-
 packages/bundle/sdk-app/package.json                           | 2 +-
 packages/bundle/sdk-minimal/package.json                       | 2 +-
 packages/bundle/web-app/package.json                           | 2 +-
 packages/client/connection/package.json                        | 2 +-
 packages/client/file-upload/package.json                       | 2 +-
 packages/client/hmr/package.json                               | 2 +-
 packages/client/locale/package.json                            | 2 +-
 packages/client/modules/package.json                           | 2 +-
 packages/client/resources/package.json                         | 2 +-
 packages/client/store/package.json                             | 2 +-
 packages/client/ui-agent-preset/package.json                   | 2 +-
 packages/client/ui-approval/package.json                       | 2 +-
 packages/client/ui-attachment/package.json                     | 2 +-
 packages/client/ui-brand-official/package.json                 | 2 +-
 packages/client/ui-chat/package.json                           | 2 +-
 packages/client/ui-commands/package.json                       | 2 +-
 packages/client/ui-conversation/package.json                   | 2 +-
 packages/client/ui-deliverables/package.json                   | 2 +-
 packages/client/ui-directory-picker-browse/package.json        | 2 +-
 packages/client/ui-directory-picker-native/package.json        | 2 +-
 packages/client/ui-dockkit/package.json                        | 2 +-
 packages/client/ui-goal/package.json                           | 2 +-
 packages/client/ui-input-trigger/package.json                  | 2 +-
 packages/client/ui-jobs/package.json                           | 2 +-
 packages/client/ui-layout/package.json                         | 2 +-
 packages/client/ui-message-feedback/package.json               | 2 +-
 packages/client/ui-model-selection/package.json                | 2 +-
 packages/client/ui-open-in-app/package.json                    | 2 +-
 packages/client/ui-permission-presets/package.json             | 2 +-
 packages/client/ui-plan/package.json                           | 2 +-
 packages/client/ui-primitives/package.json                     | 2 +-
 packages/client/ui-reference/package.json                      | 2 +-
 packages/client/ui-renderer/package.json                       | 2 +-
 packages/client/ui-schedule/package.json                       | 2 +-
 packages/client/ui-session/package.json                        | 2 +-
 packages/client/ui-settings-general/package.json               | 2 +-
 packages/client/ui-settings-models/package.json                | 2 +-
 packages/client/ui-settings-plugin-inventory/package.json      | 2 +-
 packages/client/ui-settings-plugins/package.json               | 2 +-
 packages/client/ui-settings/package.json                       | 2 +-
 packages/client/ui-sidebar-documentpreview/package.json        | 2 +-
 packages/client/ui-sidebar-files/package.json                  | 2 +-
 packages/client/ui-sidebar-right/package.json                  | 2 +-
 packages/client/ui-sidebar/package.json                        | 2 +-
 packages/client/ui-skill/package.json                          | 2 +-
 packages/client/ui-slots/package.json                          | 2 +-
 packages/client/ui-subagent/package.json                       | 2 +-
 packages/client/ui-theme/package.json                          | 2 +-
 packages/client/ui-tool/package.json                           | 2 +-
 packages/client/ui-trajectory/package.json                     | 2 +-
 packages/client/ui-user-questions/package.json                 | 2 +-
 packages/client/ui-workflow-run/package.json                   | 2 +-
 packages/client/ui-workspace/package.json                      | 2 +-
 packages/client/web/package.json                               | 2 +-
 packages/code-runtime/code-runtime-worker-thread/package.json  | 2 +-
 packages/code-runtime/code-runtime/package.json                | 2 +-
 packages/compaction/command-compact/package.json               | 2 +-
 packages/compaction/compaction-basic/package.json              | 2 +-
 packages/compaction/compaction-tool-result-pruner/package.json | 2 +-
 packages/compaction/compaction/package.json                    | 2 +-
 packages/context/agent-instructions/package.json               | 2 +-
 packages/context/file-reference-local/package.json             | 2 +-
 packages/context/file-reference/package.json                   | 2 +-
 packages/context/session-reference/package.json                | 2 +-
 packages/context/time-context/package.json                     | 2 +-
 packages/context/tmux-context/package.json                     | 2 +-
 packages/core/agent-default-model/package.json                 | 2 +-
 packages/core/agent-loop/package.json                          | 2 +-
 packages/core/agent-tool-presentation/package.json             | 2 +-
 packages/core/agent/package.json                               | 2 +-
 packages/core/scope/package.json                               | 2 +-
 packages/core/session/package.json                             | 2 +-
 packages/core/system-prompt/package.json                       | 2 +-
 packages/core/tools/package.json                               | 2 +-
 packages/credentials/authorization/package.json                | 2 +-
 packages/credentials/credentials-local/package.json            | 2 +-
 packages/credentials/credentials/package.json                  | 2 +-
 packages/e2b/e2b/package.json                                  | 2 +-
 packages/e2b/fs-e2b/package.json                               | 2 +-
 packages/e2b/subprocess-e2b/package.json                       | 2 +-
 packages/experimental/agent-team-profile/package.json          | 2 +-
 packages/experimental/agent-team-web-profile/package.json      | 2 +-
 packages/experimental/agent-team/package.json                  | 2 +-
 packages/experimental/client-ui-agent-team/package.json        | 2 +-
 packages/experimental/code-runtime-python/package.json         | 2 +-
 packages/experimental/inspector/package.json                   | 2 +-
 packages/experimental/tool-agent-team/package.json             | 2 +-
 packages/experimental/webworker-packer/package.json            | 2 +-
 packages/experimental/webworker-runtime/package.json           | 2 +-
 packages/extensions/cordis-client-runner/package.json          | 2 +-
 packages/extensions/cordis-host-runner/package.json            | 2 +-
 packages/extensions/tool-cordis/package.json                   | 2 +-
 packages/extensions/ui-cordis/package.json                     | 2 +-
 packages/feedback/command-feedback/package.json                | 2 +-
 packages/feedback/message-feedback/package.json                | 2 +-
 packages/fs/fs-local/package.json                              | 2 +-
 packages/fs/fs-observation-policy/package.json                 | 2 +-
 packages/fs/fs-sandbox/package.json                            | 2 +-
 packages/fs/fs/package.json                                    | 2 +-
 packages/fs/tool-fs-search/package.json                        | 2 +-
 packages/fs/tool-fs/package.json                               | 2 +-
 packages/fs/tool-present/package.json                          | 2 +-
 packages/fs/tool-str-replace-editor/package.json               | 2 +-
 packages/goal/command-goal/package.json                        | 2 +-
 packages/goal/goal-round-driver/package.json                   | 2 +-
 packages/goal/goal/package.json                                | 2 +-
 packages/goal/tool-goal/package.json                           | 2 +-
 packages/guard/repeat-tool-reminder/package.json               | 2 +-
 packages/guard/timeout-policy/package.json                     | 2 +-
 packages/hooks/hook-protocol/package.json                      | 2 +-
 packages/hooks/hooks-claude-code/package.json                  | 2 +-
 packages/hooks/hooks-codex/package.json                        | 2 +-
 packages/host/directory-picker-auto/package.json               | 2 +-
 packages/host/directory-picker-browse/package.json             | 2 +-
 packages/host/directory-picker-native/package.json             | 2 +-
 packages/host/directory-picker/package.json                    | 2 +-
 packages/host/frontend-static/package.json                     | 2 +-
 packages/host/open-in-app/package.json                         | 2 +-
 packages/host/plugin-inventory/package.json                    | 2 +-
 packages/host/webserver/package.json                           | 2 +-
 packages/identity/anonymous-user-id/package.json               | 2 +-
 packages/interaction/commands/package.json                     | 2 +-
 packages/interaction/permission-presets/package.json           | 2 +-
 packages/interaction/tool-ask-user/package.json                | 2 +-
 packages/interaction/user-approval/package.json                | 2 +-
 packages/interaction/user-questions/package.json               | 2 +-
 packages/jobs/jobs-local/package.json                          | 2 +-
 packages/jobs/jobs/package.json                                | 2 +-
 packages/jobs/tool-jobs/package.json                           | 2 +-
 packages/llm/deepseek-llm-api-extensions/package.json          | 2 +-
 packages/llm/llm-deepseek/package.json                         | 2 +-
 packages/llm/llm-pi-ai/package.json                            | 2 +-
 packages/llm/llm-retry/package.json                            | 2 +-
 packages/llm/llm/package.json                                  | 2 +-
 packages/llm/plugin-package-inventory-deepseek/package.json    | 2 +-
 packages/llm/token-meter/package.json                          | 2 +-
 packages/lsp/lsp-stdio/package.json                            | 2 +-
 packages/lsp/lsp/package.json                                  | 2 +-
 packages/lsp/tool-lsp/package.json                             | 2 +-
 packages/mcp/mcp-client/package.json                           | 2 +-
 packages/plan/plan-mode/package.json                           | 2 +-
 packages/preset/agent-presets/package.json                     | 2 +-
 packages/preset/persona/package.json                           | 2 +-
 packages/runtime-diagnostics/invariants/package.json           | 2 +-
 packages/sandbox/sandbox-local/package.json                    | 2 +-
 packages/sandbox/sandbox-policy/package.json                   | 2 +-
 packages/sandbox/sandbox-windows-acl/package.json              | 2 +-
 packages/sandbox/sandbox/package.json                          | 2 +-
 packages/schedule/schedule/package.json                        | 2 +-
 packages/sdk/client/package.json                               | 2 +-
 packages/sdk/protocol/package.json                             | 2 +-
 packages/sdk/server/package.json                               | 2 +-
 packages/session-query/session-log-export/package.json         | 2 +-
 packages/session-query/session-query-sqlite/package.json       | 2 +-
 packages/session-query/session-query/package.json              | 2 +-
 packages/session-query/tool-session-query/package.json         | 2 +-
 packages/session/session-checkpoint-policy/package.json        | 2 +-
 packages/session/session-format-catalog/package.json           | 2 +-
 packages/session/session-format-v0-to-v1/package.json          | 2 +-
 packages/session/session-format-v1-to-v2/package.json          | 2 +-
 packages/session/session-format-v2-to-v3/package.json          | 2 +-
 packages/session/session-format/package.json                   | 2 +-
 packages/session/session-log-deepseek/package.json             | 2 +-
 packages/session/session-persistence-jsonl/package.json        | 2 +-
 packages/session/session-persistence/package.json              | 2 +-
 packages/session/session-projection-cache/package.json         | 2 +-
 packages/session/session-projection/package.json               | 2 +-
 packages/session/session-stats/package.json                    | 2 +-
 packages/session/session-telemetry-otel/package.json           | 2 +-
 packages/session/session-telemetry/package.json                | 2 +-
 packages/session/session-title-all-prompts-llm/package.json    | 2 +-
 packages/session/session-title-first-prompt-llm/package.json   | 2 +-
 packages/session/session-title-llm/package.json                | 2 +-
 packages/session/session-title/package.json                    | 2 +-
 packages/session/session-turn-outline/package.json             | 2 +-
 packages/settings/settings-file/package.json                   | 2 +-
 packages/settings/settings/package.json                        | 2 +-
 packages/shell/bash-local/package.json                         | 2 +-
 packages/shell/bash-sandbox/package.json                       | 2 +-
 packages/shell/pwsh-local/package.json                         | 2 +-
 packages/shell/pwsh-sandbox/package.json                       | 2 +-
 packages/shell/shell-env/package.json                          | 2 +-
 packages/shell/shell/package.json                              | 2 +-
 packages/shell/tool-bash-persistent/package.json               | 2 +-
 packages/shell/tool-bash/package.json                          | 2 +-
 packages/shell/tool-pwsh-persistent/package.json               | 2 +-
 packages/shell/tool-pwsh/package.json                          | 2 +-
 packages/skill/skill-badge/package.json                        | 2 +-
 packages/skill/skill-filesystem/package.json                   | 2 +-
 packages/skill/skill/package.json                              | 2 +-
 packages/skill/tool-skill/package.json                         | 2 +-
 packages/spill/spill-local/package.json                        | 2 +-
 packages/spill/spill-policy/package.json                       | 2 +-
 packages/spill/spill/package.json                              | 2 +-
 packages/storage/storage-domain/package.json                   | 2 +-
 packages/storage/storage-json/package.json                     | 2 +-
 packages/storage/storage-sqlite/package.json                   | 2 +-
 packages/storage/storage/package.json                          | 2 +-
 packages/subagent/subagent-acp/package.json                    | 2 +-
 packages/subagent/subagent-claude-code/package.json            | 2 +-
 packages/subagent/subagent-codex/package.json                  | 2 +-
 packages/subagent/subagent-dsh-sdk/package.json                | 2 +-
 packages/subagent/subagent-fork-in-process/package.json        | 2 +-
 packages/subagent/subagent-in-process-driver/package.json      | 2 +-
 packages/subagent/subagent-spawn-in-process/package.json       | 2 +-
 packages/subagent/subagent/package.json                        | 2 +-
 packages/subagent/tool-subagent-control/package.json           | 2 +-
 packages/subagent/tool-subagent/package.json                   | 2 +-
 packages/subprocess/subprocess-local/package.json              | 2 +-
 packages/subprocess/subprocess/package.json                    | 2 +-
 packages/subprocess/win32-process/package.json                 | 2 +-
 packages/terminal/terminal-bash/package.json                   | 2 +-
 packages/terminal/terminal/package.json                        | 2 +-
 packages/terminal/tool-terminal/package.json                   | 2 +-
 packages/test-support/agent-loop-testkit/package.json          | 2 +-
 packages/test-support/client-runtime/package.json              | 2 +-
 packages/test-support/llm-mock-server/package.json             | 2 +-
 packages/test-support/llm-replay/package.json                  | 2 +-
 packages/test-support/loader-smoke/package.json                | 2 +-
 packages/test-support/session-snapshot/package.json            | 2 +-
 packages/todo/tool-todo/package.json                           | 2 +-
 packages/typert/generator/package.json                         | 2 +-
 packages/typert/loader/package.json                            | 2 +-
 packages/typert/protocol/package.json                          | 2 +-
 packages/typert/registry/package.json                          | 2 +-
 packages/util/atomic-write/package.json                        | 2 +-
 packages/util/brand/package.json                               | 2 +-
 packages/util/chunked-list/package.json                        | 2 +-
 packages/util/crypto/package.json                              | 2 +-
 packages/util/deque/package.json                               | 2 +-
 packages/util/home-paths/package.json                          | 2 +-
 packages/util/http-proxy/package.json                          | 2 +-
 packages/util/launch-environment/package.json                  | 2 +-
 packages/util/native-command/package.json                      | 2 +-
 packages/util/output-retention/package.json                    | 2 +-
 packages/util/package-manifest/package.json                    | 2 +-
 packages/util/time/package.json                                | 2 +-
 packages/util/timeout/package.json                             | 2 +-
 packages/util/values/package.json                              | 2 +-
 packages/util/workspace-path/package.json                      | 2 +-
 packages/web/tool-web/package.json                             | 2 +-
 packages/web/web-fetch-http/package.json                       | 2 +-
 packages/web/web-search-deepseek/package.json                  | 2 +-
 packages/web/web-search-exa/package.json                       | 2 +-
 packages/web/web-search-perplexity/package.json                | 2 +-
 packages/web/web/package.json                                  | 2 +-
 packages/webhook/webhook-github/package.json                   | 2 +-
 packages/webhook/webhook/package.json                          | 2 +-
 packages/workflow/tool-ralph/package.json                      | 2 +-
 packages/workflow/tool-workflow/package.json                   | 2 +-
 packages/workflow/workflow-worker-thread/package.json          | 2 +-
 packages/workflow/workflow/package.json                        | 2 +-
 packages/workspace/workspace/package.json                      | 2 +-
 272 files changed, 272 insertions(+), 272 deletions(-)

diff --git a/apps/cli/package.json b/apps/cli/package.json
index d6324bd286..97881b4cfa 100644
--- a/apps/cli/package.json
+++ b/apps/cli/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh",
   "description": "dsh CLI: profile boot, plugin management, and the browser UI alias",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/apps/desktop-host/package.json b/apps/desktop-host/package.json
index 670c35d5f2..83b1ed2a5b 100644
--- a/apps/desktop-host/package.json
+++ b/apps/desktop-host/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-desktop-host",
   "description": "Private upstream-Node host process for the Electron desktop application",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "private": true,
   "license": "MIT",
   "type": "module",
diff --git a/apps/desktop/package.json b/apps/desktop/package.json
index 5d642754a7..f414377a20 100644
--- a/apps/desktop/package.json
+++ b/apps/desktop/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-desktop",
   "description": "Electron desktop shell for an isolated pnpm-installed dsh runtime",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "private": true,
   "license": "MIT",
   "type": "module",
diff --git a/apps/web/package.json b/apps/web/package.json
index 6efa855df2..cc504af02b 100644
--- a/apps/web/package.json
+++ b/apps/web/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-web-frontend",
   "description": "Web application entry: vite build over the @deepseek-ai/dsh-client-web shell library; dist/ served by apps/cli's dsh web",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/package.json b/package.json
index 8bde0e242a..a9b7c19269 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@deepseek-ai/dsh-root",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "license": "MIT",
   "private": true,
   "type": "module",
diff --git a/packages/acp/acp/package.json b/packages/acp/acp/package.json
index c5617c9349..1e18f54543 100644
--- a/packages/acp/acp/package.json
+++ b/packages/acp/acp/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-acp",
   "description": "Automation-only Agent Client Protocol server for driving DeepSeek Harness agents over JSON-RPC stdio",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/api/gateway/package.json b/packages/api/gateway/package.json
index 255a2382d0..985db89e9e 100644
--- a/packages/api/gateway/package.json
+++ b/packages/api/gateway/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-api-gateway",
   "description": "Typert Remote Host dispatcher and Client API endpoint",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/api/remotes/package.json b/packages/api/remotes/package.json
index 50db672549..73f4bbdd13 100644
--- a/packages/api/remotes/package.json
+++ b/packages/api/remotes/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-api-remotes",
   "description": "Remote BFF assembly for application-selected Host capabilities",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/api/session-controller/package.json b/packages/api/session-controller/package.json
index 10362cdc61..e07392fe5c 100644
--- a/packages/api/session-controller/package.json
+++ b/packages/api/session-controller/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-api-session-controller",
   "description": "Session Remote commands, cold reads, and live control transport",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/api/settings-controller/package.json b/packages/api/settings-controller/package.json
index c3f836b3f2..c9bcbf578a 100644
--- a/packages/api/settings-controller/package.json
+++ b/packages/api/settings-controller/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-api-settings-controller",
   "description": "Remote owner for the configuration surfaces over the settings-domain seams",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/api/workspace-controller/package.json b/packages/api/workspace-controller/package.json
index 5bf6be8d5a..e73fe14586 100644
--- a/packages/api/workspace-controller/package.json
+++ b/packages/api/workspace-controller/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-api-workspace-controller",
   "description": "Workspace Remote commands and reconnect-safe state transport",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/api/workspace-files/package.json b/packages/api/workspace-files/package.json
index b1170a9d7f..c5130dbe89 100644
--- a/packages/api/workspace-files/package.json
+++ b/packages/api/workspace-files/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-api-workspace-files",
   "description": "Workspace file service and Client resource provider: bounded reads, directory listing, and live metadata over the workspaceFiles Remote namespace",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/attachment/attachment-local/package.json b/packages/attachment/attachment-local/package.json
index 8b45903d74..1d2a37a9e4 100644
--- a/packages/attachment/attachment-local/package.json
+++ b/packages/attachment/attachment-local/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-attachment-local",
   "description": "Private content-addressed DSH_HOME attachment storage",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/attachment/attachment/package.json b/packages/attachment/attachment/package.json
index 3ca33ec97c..e030ce0e71 100644
--- a/packages/attachment/attachment/package.json
+++ b/packages/attachment/attachment/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-attachment",
   "description": "Durable immutable attachment storage seam for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/boot/app-boot/package.json b/packages/boot/app-boot/package.json
index 2397bb9bbf..9b51435015 100644
--- a/packages/boot/app-boot/package.json
+++ b/packages/boot/app-boot/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-app-boot",
   "description": "Shared boot glue for the app bins: .env loading, fail-loud Loader guards, snapshot-aware config resolution, and the Loader boot sequence",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/boot/cmdline/package.json b/packages/boot/cmdline/package.json
index 13ea938412..bb453aaa94 100644
--- a/packages/boot/cmdline/package.json
+++ b/packages/boot/cmdline/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-cmdline",
   "description": "Immutable command-line handoff from a dsh launcher to any app plugin that injects cmdlineArgs",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/bundle/acp-app/package.json b/packages/bundle/acp-app/package.json
index d9ec52d0b1..f9aca81482 100644
--- a/packages/bundle/acp-app/package.json
+++ b/packages/bundle/acp-app/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-acp-app",
   "description": "The dsh ACP profile bundle: automation-only JSON-RPC stdio and process lifecycle over dsh-base",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/bundle/base/package.json b/packages/bundle/base/package.json
index 39bdacbcdf..abe58f9588 100644
--- a/packages/bundle/base/package.json
+++ b/packages/bundle/base/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-base",
   "description": "The shared dsh core as a profile bundle: the first patch layer of base-backed profiles, inserting core rows over the empty profile root",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/bundle/headless/package.json b/packages/bundle/headless/package.json
index d59f4edaab..5d7042c166 100644
--- a/packages/bundle/headless/package.json
+++ b/packages/bundle/headless/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-headless",
   "description": "The dsh one-shot bundle: a direct core Agent/Session runner over dsh-base with no Host, HTTP, or browser layer",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/bundle/sdk-app/package.json b/packages/bundle/sdk-app/package.json
index db2fcd33d0..974b60623a 100644
--- a/packages/bundle/sdk-app/package.json
+++ b/packages/bundle/sdk-app/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-sdk-app",
   "description": "The dsh SDK profile bundle: stdio JSON-RPC serving and process lifecycle over dsh-base",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/bundle/sdk-minimal/package.json b/packages/bundle/sdk-minimal/package.json
index 6dfc9ee616..bd32a131f0 100644
--- a/packages/bundle/sdk-minimal/package.json
+++ b/packages/bundle/sdk-minimal/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-sdk-minimal",
   "description": "The standalone minimal SDK profile bundle: JSON-RPC, one DeepSeek adapter, persistent shell, and JSONL sessions",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/bundle/web-app/package.json b/packages/bundle/web-app/package.json
index ee26017e1c..3498cb6761 100644
--- a/packages/bundle/web-app/package.json
+++ b/packages/bundle/web-app/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-web-app",
   "description": "The dsh browser-surface bundle: the web patch layer over dsh-base plus the runtime glue plugin (frontend dist serving, web-surface prompt, bash runtime variables, URL line)",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/connection/package.json b/packages/client/connection/package.json
index ce13fa2b58..4732dcdd71 100644
--- a/packages/client/connection/package.json
+++ b/packages/client/connection/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-connection",
   "description": "Authenticated RPC transport, generation lifecycle, and browser fixture",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/file-upload/package.json b/packages/client/file-upload/package.json
index e179fda33f..5c606edbc5 100644
--- a/packages/client/file-upload/package.json
+++ b/packages/client/file-upload/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-file-upload",
   "description": "Agent-scoped browser file upload, streaming intake, and staged receipt service",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/hmr/package.json b/packages/client/hmr/package.json
index 01866dac7a..3c5f0a3cbd 100644
--- a/packages/client/hmr/package.json
+++ b/packages/client/hmr/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-hmr",
   "description": "Dev-only hot-reload driver for script-loaded client entries: SSE rebuilt frames → invalidate/prefetch → fiber swap through the vendored Loader entry",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/locale/package.json b/packages/client/locale/package.json
index 01ce886f49..4245200191 100644
--- a/packages/client/locale/package.json
+++ b/packages/client/locale/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-locale",
   "description": "Locale plugin: Host-backed preference, extensible language catalog, browser fallback, and typed built-in dictionaries",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/modules/package.json b/packages/client/modules/package.json
index 12348841cb..06ee59bb3e 100644
--- a/packages/client/modules/package.json
+++ b/packages/client/modules/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-modules",
   "description": "Client module system, dual-face: node half composes the __DSH_BOOT__ entry graph (incremental dsh.client scan, bundle route, index tap, webPlugins service); browser half is the lazy-CJS module table the vendored cordis Loader consumes as its internal seam",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/resources/package.json b/packages/client/resources/package.json
index e1b71668f9..dd6b9baa2f 100644
--- a/packages/client/resources/package.json
+++ b/packages/client/resources/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-resources",
   "description": "Unified client resource model: protocol-registered providers turn URL addresses into live values, consumed through the useResource global standard hook",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/store/package.json b/packages/client/store/package.json
index 772dbc2ba9..59325a1517 100644
--- a/packages/client/store/package.json
+++ b/packages/client/store/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-store",
   "description": "React-free observable and snapshot-store contracts with the shared Zustand/Immer engine",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-agent-preset/package.json b/packages/client/ui-agent-preset/package.json
index f941d9eb93..2dce990410 100644
--- a/packages/client/ui-agent-preset/package.json
+++ b/packages/client/ui-agent-preset/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-agent-preset",
   "description": "Agent-preset surfaces: the default for later sessions, this session's seat, and the composition editor",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-approval/package.json b/packages/client/ui-approval/package.json
index a240cee720..765176239f 100644
--- a/packages/client/ui-approval/package.json
+++ b/packages/client/ui-approval/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-approval",
   "description": "Approval composer takeover over the scoped Remote Event waterfall",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-attachment/package.json b/packages/client/ui-attachment/package.json
index 1bb4b119de..f994246609 100644
--- a/packages/client/ui-attachment/package.json
+++ b/packages/client/ui-attachment/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-attachment",
   "description": "Dynamic attachment presentation plugin for conversation input, message-image, and trajectory image slots",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-brand-official/package.json b/packages/client/ui-brand-official/package.json
index 9407f6900f..1113b8a013 100644
--- a/packages/client/ui-brand-official/package.json
+++ b/packages/client/ui-brand-official/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-brand-official",
   "description": "Official DeepSeek Harness brand occupants for the Web client's sidebar slots",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-chat/package.json b/packages/client/ui-chat/package.json
index 3951341f3d..4fc9f35f4d 100644
--- a/packages/client/ui-chat/package.json
+++ b/packages/client/ui-chat/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-chat",
   "description": "Chat Conversation target, node definitions, renderers, and details surface",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-commands/package.json b/packages/client/ui-commands/package.json
index 46538d757a..f3313850a3 100644
--- a/packages/client/ui-commands/package.json
+++ b/packages/client/ui-commands/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-commands",
   "description": "Client command surface: global directory cache, '/' source, three command UI kinds, popupSelect registry",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-conversation/package.json b/packages/client/ui-conversation/package.json
index 64cc9baef7..060d2a0611 100644
--- a/packages/client/ui-conversation/package.json
+++ b/packages/client/ui-conversation/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-conversation",
   "description": "Target-neutral Conversation assembly, shell, composer, queue, and view navigation",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-deliverables/package.json b/packages/client/ui-deliverables/package.json
index 6164f30324..676e3569fd 100644
--- a/packages/client/ui-deliverables/package.json
+++ b/packages/client/ui-deliverables/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-deliverables",
   "description": "Produced-files turn tail and clickable final-response file references for Web",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-directory-picker-browse/package.json b/packages/client/ui-directory-picker-browse/package.json
index 741d1c2818..019e02f3fe 100644
--- a/packages/client/ui-directory-picker-browse/package.json
+++ b/packages/client/ui-directory-picker-browse/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-directory-picker-browse",
   "description": "In-app directory browsing surface: the workspace directory-flow owner rendering the host's listing and creation primitives",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-directory-picker-native/package.json b/packages/client/ui-directory-picker-native/package.json
index bd47b06288..e984a73db2 100644
--- a/packages/client/ui-directory-picker-native/package.json
+++ b/packages/client/ui-directory-picker-native/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-directory-picker-native",
   "description": "Native directory-picker surface: the renderless workspace directory-flow occupant driving the host's OS chooser",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-dockkit/package.json b/packages/client/ui-dockkit/package.json
index 182c33fce0..570cdebef4 100644
--- a/packages/client/ui-dockkit/package.json
+++ b/packages/client/ui-dockkit/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-dockkit",
   "description": "Docking layout kit: split-tree engine with invertible operations, and the React components that render and drive it (zero cordis)",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-goal/package.json b/packages/client/ui-goal/package.json
index 05f3fd7bc0..b59be8fb9a 100644
--- a/packages/client/ui-goal/package.json
+++ b/packages/client/ui-goal/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-goal",
   "description": "Session goal surface: GoalBar docked above the composer, read from the goal session projection",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-input-trigger/package.json b/packages/client/ui-input-trigger/package.json
index 0db08b9c2a..4cf4959203 100644
--- a/packages/client/ui-input-trigger/package.json
+++ b/packages/client/ui-input-trigger/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-input-trigger",
   "description": "Input trigger pipeline: '/' and '@' detection, candidate menu, pick routing to registered sources",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-jobs/package.json b/packages/client/ui-jobs/package.json
index e55e2d976c..d36767585b 100644
--- a/packages/client/ui-jobs/package.json
+++ b/packages/client/ui-jobs/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-jobs",
   "description": "Session-header background-job list: live registry state mirrored from session/jobs frames",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "type": "module",
   "main": "lib/index.js",
   "types": "lib/types/index.d.ts",
diff --git a/packages/client/ui-layout/package.json b/packages/client/ui-layout/package.json
index d72ce51e8c..5c56f8dfe9 100644
--- a/packages/client/ui-layout/package.json
+++ b/packages/client/ui-layout/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-layout",
   "description": "Shell plugin: three-column AppFrame with drag handles, ctx.layout viewing-state service (navigation + panels)",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-message-feedback/package.json b/packages/client/ui-message-feedback/package.json
index ab137711e3..051353d43f 100644
--- a/packages/client/ui-message-feedback/package.json
+++ b/packages/client/ui-message-feedback/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-message-feedback",
   "description": "The Web feedback surface: per-message Like/Dislike in the assistant-message action strip and the feedback dialog behind both ratings and /feedback, backed by the messageFeedback and sessionFeedback Host Remotes",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-model-selection/package.json b/packages/client/ui-model-selection/package.json
index e0ec65380c..bf37cfed12 100644
--- a/packages/client/ui-model-selection/package.json
+++ b/packages/client/ui-model-selection/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-model-selection",
   "description": "Model selection over the shared model catalog, Session projection, and session.selectModel",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-open-in-app/package.json b/packages/client/ui-open-in-app/package.json
index fc8e9558b1..923abdf40e 100644
--- a/packages/client/ui-open-in-app/package.json
+++ b/packages/client/ui-open-in-app/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-open-in-app",
   "description": "Web Session-header \"Open In...\" split button opening the session workspace directory in a locally installed application",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-permission-presets/package.json b/packages/client/ui-permission-presets/package.json
index a80a2e5563..d96960bb15 100644
--- a/packages/client/ui-permission-presets/package.json
+++ b/packages/client/ui-permission-presets/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-permission-presets",
   "description": "Permission surfaces: a new-session default in General settings and a current-session /permission popup over the permissions projection",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-plan/package.json b/packages/client/ui-plan/package.json
index 959d790afc..49d6f41358 100644
--- a/packages/client/ui-plan/package.json
+++ b/packages/client/ui-plan/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-plan",
   "description": "Plan-mode composer control: the conversation.input.plan seat over the plan projection and the /plan command channel",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-primitives/package.json b/packages/client/ui-primitives/package.json
index 80a9ecee39..4c02a1ced6 100644
--- a/packages/client/ui-primitives/package.json
+++ b/packages/client/ui-primitives/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-primitives",
   "description": "Pure React atoms for the dsh web UI: controls, icons, markdown, and JSON inspectors (zero cordis)",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-reference/package.json b/packages/client/ui-reference/package.json
index 1375b73238..84dd09e631 100644
--- a/packages/client/ui-reference/package.json
+++ b/packages/client/ui-reference/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-reference",
   "description": "Unified Web @file and @session reference source",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-renderer/package.json b/packages/client/ui-renderer/package.json
index 4307db79ed..17edf34172 100644
--- a/packages/client/ui-renderer/package.json
+++ b/packages/client/ui-renderer/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-renderer",
   "description": "Browser UI renderer: React slot bindings, ctx.uiRenderer, and the assembled application root",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-schedule/package.json b/packages/client/ui-schedule/package.json
index 4aa8d3872f..b4717e39a2 100644
--- a/packages/client/ui-schedule/package.json
+++ b/packages/client/ui-schedule/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-schedule",
   "description": "Read-only active Schedule catalog in the Web Session header",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "type": "module",
   "main": "lib/index.js",
   "types": "lib/types/index.d.ts",
diff --git a/packages/client/ui-session/package.json b/packages/client/ui-session/package.json
index 7cc1dcc427..e7943cbdbf 100644
--- a/packages/client/ui-session/package.json
+++ b/packages/client/ui-session/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-session",
   "description": "Session Controller adapter for React and session-scoped slots",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-settings-general/package.json b/packages/client/ui-settings-general/package.json
index a4932dd534..62ea8b087d 100644
--- a/packages/client/ui-settings-general/package.json
+++ b/packages/client/ui-settings-general/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-settings-general",
   "description": "Settings ownerless-copy and product onboarding plugin: the General section, shell trigger/header chrome content, settings dictionaries, and the versioned welcome notice",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-settings-models/package.json b/packages/client/ui-settings-models/package.json
index b7272db74f..a44acf6333 100644
--- a/packages/client/ui-settings-models/package.json
+++ b/packages/client/ui-settings-models/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-settings-models",
   "description": "Models settings and shared product-onboarding dialogs over existing settings and credential joins",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-settings-plugin-inventory/package.json b/packages/client/ui-settings-plugin-inventory/package.json
index 4bf7c82dbd..a0e43dbaa4 100644
--- a/packages/client/ui-settings-plugin-inventory/package.json
+++ b/packages/client/ui-settings-plugin-inventory/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-settings-plugin-inventory",
   "description": "Read-only Cordis Loader inventory tab in Web Plugins settings",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-settings-plugins/package.json b/packages/client/ui-settings-plugins/package.json
index 509ab80afc..a9ee3769c3 100644
--- a/packages/client/ui-settings-plugins/package.json
+++ b/packages/client/ui-settings-plugins/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-settings-plugins",
   "description": "Plugins settings section with feature-owned tabs and configurable host-plane plugin cards",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-settings/package.json b/packages/client/ui-settings/package.json
index 909e4545db..d8c8fd594a 100644
--- a/packages/client/ui-settings/package.json
+++ b/packages/client/ui-settings/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-settings",
   "description": "Settings domain base plugin: the settings-namespace scope service and the canonical settings slot-type contract",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-sidebar-documentpreview/package.json b/packages/client/ui-sidebar-documentpreview/package.json
index b8f78014ce..c84f696313 100644
--- a/packages/client/ui-sidebar-documentpreview/package.json
+++ b/packages/client/ui-sidebar-documentpreview/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-sidebar-documentpreview",
   "description": "Extensible document previews for Sidebar files: Markdown, highlighted code, images, PDF, HTML, and plain text",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-sidebar-files/package.json b/packages/client/ui-sidebar-files/package.json
index cfa515b3dd..c9b0f30663 100644
--- a/packages/client/ui-sidebar-files/package.json
+++ b/packages/client/ui-sidebar-files/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-sidebar-files",
   "description": "Workspace file tree tab type for the right Sidebar: lazy directory listing over the workspaceFiles Remote namespace, opening files into the Sidebar",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-sidebar-right/package.json b/packages/client/ui-sidebar-right/package.json
index 4c6786e22d..05c813fcc2 100644
--- a/packages/client/ui-sidebar-right/package.json
+++ b/packages/client/ui-sidebar-right/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-sidebar-right",
   "description": "Right Sidebar: the docking surface's session-bound state, its panel and header expand control, and the navigation service over it",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-sidebar/package.json b/packages/client/ui-sidebar/package.json
index 1529d8a370..e3329d2ad5 100644
--- a/packages/client/ui-sidebar/package.json
+++ b/packages/client/ui-sidebar/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-sidebar",
   "description": "Sidebar plugin: session multi-level tree, search, grouping, state dots",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-skill/package.json b/packages/client/ui-skill/package.json
index 870ebff496..312000f453 100644
--- a/packages/client/ui-skill/package.json
+++ b/packages/client/ui-skill/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-skill",
   "description": "Web skill references and the dedicated skill tool row",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-slots/package.json b/packages/client/ui-slots/package.json
index 3da3989d32..aa3ea2b5db 100644
--- a/packages/client/ui-slots/package.json
+++ b/packages/client/ui-slots/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-slots",
   "description": "Slot registry pure core: SlotMap declaration merging, single register composition API, four-share props types, store-seat types, renderer install seam",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-subagent/package.json b/packages/client/ui-subagent/package.json
index 75a68280a9..013105cce6 100644
--- a/packages/client/ui-subagent/package.json
+++ b/packages/client/ui-subagent/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-subagent",
   "description": "Subagent conversation catalog, continuation routing UI, and '@' reference source",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-theme/package.json b/packages/client/ui-theme/package.json
index 33f5cb95a7..5a7a7fb249 100644
--- a/packages/client/ui-theme/package.json
+++ b/packages/client/ui-theme/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-theme",
   "description": "Theme plugin: Host bootstrap for the pre-plugin palette; DOM-free ThemeRuntime for light/dark/system state; --dsw-* token styles and Appearance settings row",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-tool/package.json b/packages/client/ui-tool/package.json
index 0a4b9fc85c..8e2770e323 100644
--- a/packages/client/ui-tool/package.json
+++ b/packages/client/ui-tool/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-tool",
   "description": "Client Tool call-tree renderer and keyed per-tool presentation slot",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-trajectory/package.json b/packages/client/ui-trajectory/package.json
index fdd4ee0700..6eb6fc741f 100644
--- a/packages/client/ui-trajectory/package.json
+++ b/packages/client/ui-trajectory/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-trajectory",
   "description": "Trajectory event ledger with an interactive timing overview: pure-consumer plugin registering into the conversation ViewMap (no service)",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-user-questions/package.json b/packages/client/ui-user-questions/package.json
index afaca0b4c7..43a56f951a 100644
--- a/packages/client/ui-user-questions/package.json
+++ b/packages/client/ui-user-questions/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-user-questions",
   "description": "Web ask_user_question composer takeover and plan-review presentation UI",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-workflow-run/package.json b/packages/client/ui-workflow-run/package.json
index b0d6fb3d7a..ac5afa61bf 100644
--- a/packages/client/ui-workflow-run/package.json
+++ b/packages/client/ui-workflow-run/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-workflow-run",
   "description": "Durable workflow-run Conversation Node and nested member disclosure for dsh web",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/ui-workspace/package.json b/packages/client/ui-workspace/package.json
index 432bfa873d..086992fd19 100644
--- a/packages/client/ui-workspace/package.json
+++ b/packages/client/ui-workspace/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-workspace",
   "description": "Workspace picker plugin: one WorkspacePicker registered into the sidebar and empty-state workspace slots",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/client/web/package.json b/packages/client/web/package.json
index 36b3bf6251..4b84e01cf3 100644
--- a/packages/client/web/package.json
+++ b/packages/client/web/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-web",
   "description": "Web boot kernel: static module table, Cordis loader, framework-free boot page, and UI-renderer handoff",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/code-runtime/code-runtime-worker-thread/package.json b/packages/code-runtime/code-runtime-worker-thread/package.json
index 5aba4c84cb..5f18cafa8b 100644
--- a/packages/code-runtime/code-runtime-worker-thread/package.json
+++ b/packages/code-runtime/code-runtime-worker-thread/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-code-runtime-worker-thread",
   "description": "Worker-thread implementation of the DeepSeek Harness code-execution seam",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/code-runtime/code-runtime/package.json b/packages/code-runtime/code-runtime/package.json
index 59d4c303c7..7e31f4998e 100644
--- a/packages/code-runtime/code-runtime/package.json
+++ b/packages/code-runtime/code-runtime/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-code-runtime",
   "description": "Abstract code-execution seam (ctx.codeRuntime) for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/compaction/command-compact/package.json b/packages/compaction/command-compact/package.json
index 6553c6b102..ac4c49b3b6 100644
--- a/packages/compaction/command-compact/package.json
+++ b/packages/compaction/command-compact/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-command-compact",
   "description": "Human-facing slash command for explicit session compaction",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/compaction/compaction-basic/package.json b/packages/compaction/compaction-basic/package.json
index 4e7d624403..82f980e727 100644
--- a/packages/compaction/compaction-basic/package.json
+++ b/packages/compaction/compaction-basic/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-compaction-basic",
   "description": "Token-meter-driven compaction policy and LLM summarization backend for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/compaction/compaction-tool-result-pruner/package.json b/packages/compaction/compaction-tool-result-pruner/package.json
index caf335c1d3..93eedeba7f 100644
--- a/packages/compaction/compaction-tool-result-pruner/package.json
+++ b/packages/compaction/compaction-tool-result-pruner/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-compaction-tool-result-pruner",
   "description": "Replay-safe model-free head/middle/tail pruning for tool-result surface nodes",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/compaction/compaction/package.json b/packages/compaction/compaction/package.json
index a81efbc09a..4382613ca4 100644
--- a/packages/compaction/compaction/package.json
+++ b/packages/compaction/compaction/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-compaction",
   "description": "Abstract compaction service seam (ctx.compaction) for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/context/agent-instructions/package.json b/packages/context/agent-instructions/package.json
index 4f3075a46b..7fa0bba69e 100644
--- a/packages/context/agent-instructions/package.json
+++ b/packages/context/agent-instructions/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-agent-instructions",
   "description": "Workspace context loader for AGENTS.md/CLAUDE.md instruction files",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/context/file-reference-local/package.json b/packages/context/file-reference-local/package.json
index 35133997f2..998c6e2e52 100644
--- a/packages/context/file-reference-local/package.json
+++ b/packages/context/file-reference-local/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-file-reference-local",
   "description": "Local-filesystem ctx.fileReferences provider with bounded fuzzy indexes",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/context/file-reference/package.json b/packages/context/file-reference/package.json
index 7b61041415..abc2a1cc2a 100644
--- a/packages/context/file-reference/package.json
+++ b/packages/context/file-reference/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-file-reference",
   "description": "File-reference discovery contract and shared @file grammar",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/context/session-reference/package.json b/packages/context/session-reference/package.json
index 3273428e35..e4e17c536b 100644
--- a/packages/context/session-reference/package.json
+++ b/packages/context/session-reference/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-session-reference",
   "description": "Cross-session snapshot references and durable untrusted model context (ctx.sessionReferenceResolver)",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/context/time-context/package.json b/packages/context/time-context/package.json
index a27f801b3b..94023206a8 100644
--- a/packages/context/time-context/package.json
+++ b/packages/context/time-context/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-time-context",
   "description": "Opt-in durable per-step context with the current time and elapsed time",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/context/tmux-context/package.json b/packages/context/tmux-context/package.json
index aaab689106..95a04c31b9 100644
--- a/packages/context/tmux-context/package.json
+++ b/packages/context/tmux-context/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-tmux-context",
   "description": "Opt-in durable per-step context with this agent's tmux pane and window location",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/core/agent-default-model/package.json b/packages/core/agent-default-model/package.json
index 296510d8ad..109ae3394d 100644
--- a/packages/core/agent-default-model/package.json
+++ b/packages/core/agent-default-model/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-agent-default-model",
   "description": "Default model selection shared by Agent entry points",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/core/agent-loop/package.json b/packages/core/agent-loop/package.json
index 986973d782..708c7c514a 100644
--- a/packages/core/agent-loop/package.json
+++ b/packages/core/agent-loop/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-agent-loop",
   "description": "The concrete agent loop plugin for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/core/agent-tool-presentation/package.json b/packages/core/agent-tool-presentation/package.json
index a7329fe690..10109f5ef1 100644
--- a/packages/core/agent-tool-presentation/package.json
+++ b/packages/core/agent-tool-presentation/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-agent-tool-presentation",
   "description": "Agent-plane presentation selector: composes one agent's tools as PTC mode, native, or both",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/core/agent/package.json b/packages/core/agent/package.json
index 031cdee0ad..b34895cb88 100644
--- a/packages/core/agent/package.json
+++ b/packages/core/agent/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-agent",
   "description": "Agent interface, registry, initiator scope, and event vocabulary for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/core/scope/package.json b/packages/core/scope/package.json
index 418572f660..3ac55af4cb 100644
--- a/packages/core/scope/package.json
+++ b/packages/core/scope/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-scope",
   "description": "Scoped-context registration primitive (scope tags, scope-filtered event dispatch) for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/core/session/package.json b/packages/core/session/package.json
index f840ae6136..4f43ac08dd 100644
--- a/packages/core/session/package.json
+++ b/packages/core/session/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-session",
   "description": "Event-sourced session store for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/core/system-prompt/package.json b/packages/core/system-prompt/package.json
index 0a5a6deca2..0df2d6de53 100644
--- a/packages/core/system-prompt/package.json
+++ b/packages/core/system-prompt/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-system-prompt",
   "description": "System prompt assembly registry for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/core/tools/package.json b/packages/core/tools/package.json
index 8aa41f993f..e3d6cdc3b8 100644
--- a/packages/core/tools/package.json
+++ b/packages/core/tools/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-tools",
   "description": "Tool registry and execution pipeline for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/credentials/authorization/package.json b/packages/credentials/authorization/package.json
index d7c3190037..830bdf51fe 100644
--- a/packages/credentials/authorization/package.json
+++ b/packages/credentials/authorization/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-authorization",
   "description": "Authorization seam (ctx.authorization): plugin-owned flows that obtain a credential through a conversation with the human",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/credentials/credentials-local/package.json b/packages/credentials/credentials-local/package.json
index cceff4b390..c33473e37f 100644
--- a/packages/credentials/credentials-local/package.json
+++ b/packages/credentials/credentials-local/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-credentials-local",
   "description": "File-backed credentials provider ($DSH_HOME/.env under the live process environment) for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/credentials/credentials/package.json b/packages/credentials/credentials/package.json
index 4d2fab8274..2b442b47c8 100644
--- a/packages/credentials/credentials/package.json
+++ b/packages/credentials/credentials/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-credentials",
   "description": "Abstract credential seam (ctx.credentials): settings carry references to secrets, providers own the values",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/e2b/e2b/package.json b/packages/e2b/e2b/package.json
index bfe05b0245..9a2bd625fc 100644
--- a/packages/e2b/e2b/package.json
+++ b/packages/e2b/e2b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-e2b",
   "description": "Shared E2B sandbox lifecycle for DeepSeek Harness provider adapters",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/e2b/fs-e2b/package.json b/packages/e2b/fs-e2b/package.json
index 5629ae184b..4381fe7e86 100644
--- a/packages/e2b/fs-e2b/package.json
+++ b/packages/e2b/fs-e2b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-fs-e2b",
   "description": "E2B filesystem implementation for DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/e2b/subprocess-e2b/package.json b/packages/e2b/subprocess-e2b/package.json
index 9ab4c2c954..f5824b362c 100644
--- a/packages/e2b/subprocess-e2b/package.json
+++ b/packages/e2b/subprocess-e2b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-subprocess-e2b",
   "description": "E2B subprocess implementation for DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/experimental/agent-team-profile/package.json b/packages/experimental/agent-team-profile/package.json
index d35803a238..51fefe782d 100644
--- a/packages/experimental/agent-team-profile/package.json
+++ b/packages/experimental/agent-team-profile/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-experimental-agent-team-profile",
   "description": "Experimental profile bundle enabling Agent Teams over dsh-base",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/experimental/agent-team-web-profile/package.json b/packages/experimental/agent-team-web-profile/package.json
index fd41141b51..e4df1779f9 100644
--- a/packages/experimental/agent-team-web-profile/package.json
+++ b/packages/experimental/agent-team-web-profile/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-experimental-agent-team-web-profile",
   "description": "Experimental Web profile layer for Agent Teams Remote and UI plugins",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/experimental/agent-team/package.json b/packages/experimental/agent-team/package.json
index fd174f04c9..b61057e3aa 100644
--- a/packages/experimental/agent-team/package.json
+++ b/packages/experimental/agent-team/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-experimental-agent-team",
   "description": "Implicit-root Agent Teams roster, durable peer mailbox, and shared task DAG",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/experimental/client-ui-agent-team/package.json b/packages/experimental/client-ui-agent-team/package.json
index d090fd6832..4932c980ba 100644
--- a/packages/experimental/client-ui-agent-team/package.json
+++ b/packages/experimental/client-ui-agent-team/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-experimental-client-ui-agent-team",
   "description": "Web Agent Teams roster, task board, and teammate navigation",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/experimental/code-runtime-python/package.json b/packages/experimental/code-runtime-python/package.json
index fa589196f1..2fb430b5a8 100644
--- a/packages/experimental/code-runtime-python/package.json
+++ b/packages/experimental/code-runtime-python/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-experimental-code-runtime-python",
   "description": "CPython subprocess implementation of the DeepSeek Harness code-execution seam",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/deepseek-ai/deepseek-harness.git",
diff --git a/packages/experimental/inspector/package.json b/packages/experimental/inspector/package.json
index 09fe122bd9..b7983de638 100644
--- a/packages/experimental/inspector/package.json
+++ b/packages/experimental/inspector/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-experimental-inspector",
   "description": "Experimental cross-realm CDP hub for Host debugging and Client Runtime inspection",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "private": true,
   "repository": {
     "type": "git",
diff --git a/packages/experimental/tool-agent-team/package.json b/packages/experimental/tool-agent-team/package.json
index d5b6600431..be33c259a2 100644
--- a/packages/experimental/tool-agent-team/package.json
+++ b/packages/experimental/tool-agent-team/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-experimental-tool-agent-team",
   "description": "Scoped model-facing Agent Teams tools over ctx.agentTeams",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/experimental/webworker-packer/package.json b/packages/experimental/webworker-packer/package.json
index 16930c170b..ca79afecb6 100644
--- a/packages/experimental/webworker-packer/package.json
+++ b/packages/experimental/webworker-packer/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-experimental-webworker-packer",
   "description": "Build-time packer for the browser runtime's base VFS image and ordered data-overlay archives",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "private": true,
   "repository": {
     "type": "git",
diff --git a/packages/experimental/webworker-runtime/package.json b/packages/experimental/webworker-runtime/package.json
index cbeb482553..ec646a9b60 100644
--- a/packages/experimental/webworker-runtime/package.json
+++ b/packages/experimental/webworker-runtime/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-experimental-webworker-runtime",
   "description": "Browser-only harness runtime: in-memory VFS, module transform and loader, postMessage tunnel, and the dedicated Web Worker assembly, with the Node-compatibility layer that lets the host tree run unchanged",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "private": true,
   "repository": {
     "type": "git",
diff --git a/packages/extensions/cordis-client-runner/package.json b/packages/extensions/cordis-client-runner/package.json
index 91b51cc051..4b96b17335 100644
--- a/packages/extensions/cordis-client-runner/package.json
+++ b/packages/extensions/cordis-client-runner/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-cordis-client-runner",
   "description": "Browser half of dynamic dual-half plugin packages: event subscription, closure evaluation, guard facade, and loader entries",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/extensions/cordis-host-runner/package.json b/packages/extensions/cordis-host-runner/package.json
index 8da629b7cf..a4578ed8c6 100644
--- a/packages/extensions/cordis-host-runner/package.json
+++ b/packages/extensions/cordis-host-runner/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-cordis-host-runner",
   "description": "Dynamic package definition registry, host-half sandbox lifecycle, and invoke handler table for model-mounted dual-half packages",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/extensions/tool-cordis/package.json b/packages/extensions/tool-cordis/package.json
index d895cd9b1d..77e0883e7b 100644
--- a/packages/extensions/tool-cordis/package.json
+++ b/packages/extensions/tool-cordis/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-tool-cordis",
   "description": "Self-referential cordis toolset: inspect the live runtime, mount and dispose model-written plugins",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/extensions/ui-cordis/package.json b/packages/extensions/ui-cordis/package.json
index b4aad537a9..4bad5de8e9 100644
--- a/packages/extensions/ui-cordis/package.json
+++ b/packages/extensions/ui-cordis/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-ui-cordis",
   "description": "Cordis dynamic-plugin definition card: the keyed cordis_define tool row with its run/stop switch",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/feedback/command-feedback/package.json b/packages/feedback/command-feedback/package.json
index 4b08161f2d..3b0414d813 100644
--- a/packages/feedback/command-feedback/package.json
+++ b/packages/feedback/command-feedback/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-command-feedback",
   "description": "Log-only session feedback: the record event, the sessionFeedback Host Remote, and the human-facing slash command",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/feedback/message-feedback/package.json b/packages/feedback/message-feedback/package.json
index 66fab4fb94..90134101c3 100644
--- a/packages/feedback/message-feedback/package.json
+++ b/packages/feedback/message-feedback/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-message-feedback",
   "description": "Canonical Session-log ratings and notes for finalized assistant messages",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/fs/fs-local/package.json b/packages/fs/fs-local/package.json
index 6d6ebd5643..2a70ac51a7 100644
--- a/packages/fs/fs-local/package.json
+++ b/packages/fs/fs-local/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-fs-local",
   "description": "Local-filesystem implementation of the DeepSeek Harness filesystem seam (ctx.fs)",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/fs/fs-observation-policy/package.json b/packages/fs/fs-observation-policy/package.json
index 0b206c3c16..978f3d0ae7 100644
--- a/packages/fs/fs-observation-policy/package.json
+++ b/packages/fs/fs-observation-policy/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-fs-observation-policy",
   "description": "File-context policy plugin for the DeepSeek Harness — observed-state, read-before-edit, and version-guarded write/edit added over the ctx.fs provider seam through the fs/* event gate (no service API)",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/fs/fs-sandbox/package.json b/packages/fs/fs-sandbox/package.json
index 5500995467..e1261a7f14 100644
--- a/packages/fs/fs-sandbox/package.json
+++ b/packages/fs/fs-sandbox/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-fs-sandbox",
   "description": "Sandbox-enforcing implementation of the DeepSeek Harness filesystem seam: fences write/edit by the per-call sandbox mode (read-only denies mutation, workspace-write contains it to the workspace + temp roots) while reads pass through",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/fs/fs/package.json b/packages/fs/fs/package.json
index 73b9975426..800220fbbb 100644
--- a/packages/fs/fs/package.json
+++ b/packages/fs/fs/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-fs",
   "description": "Abstract filesystem capability seam (ctx.fs) for the DeepSeek Harness — vocabulary types, the FileSystem service (text IO + optional version-guarded atomic mutations), and the fs/* policy event vocabulary",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/fs/tool-fs-search/package.json b/packages/fs/tool-fs-search/package.json
index e3e8aadaca..b4bab8a8c4 100644
--- a/packages/fs/tool-fs-search/package.json
+++ b/packages/fs/tool-fs-search/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-tool-fs-search",
   "description": "Model-facing filesystem discovery tools (glob, grep) backed by the packaged ripgrep binary (@vscode/ripgrep)",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/fs/tool-fs/package.json b/packages/fs/tool-fs/package.json
index adc2de7cb9..3486c30fd1 100644
--- a/packages/fs/tool-fs/package.json
+++ b/packages/fs/tool-fs/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-tool-fs",
   "description": "Model-facing filesystem tools (read, write, edit) over the DeepSeek Harness filesystem seam (ctx.fs)",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/fs/tool-present/package.json b/packages/fs/tool-present/package.json
index 669b79b3e4..18e5bb3d4a 100644
--- a/packages/fs/tool-present/package.json
+++ b/packages/fs/tool-present/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-tool-present",
   "description": "Explicit workspace file delivery declarations for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/fs/tool-str-replace-editor/package.json b/packages/fs/tool-str-replace-editor/package.json
index 56456279bc..92b0be3892 100644
--- a/packages/fs/tool-str-replace-editor/package.json
+++ b/packages/fs/tool-str-replace-editor/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-tool-str-replace-editor",
   "description": "Model-facing view, create, literal replace, and line insert tool over the Harness filesystem service",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/goal/command-goal/package.json b/packages/goal/command-goal/package.json
index eb6dc7bd80..1b0dfe53d3 100644
--- a/packages/goal/command-goal/package.json
+++ b/packages/goal/command-goal/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-command-goal",
   "description": "Human-facing slash command for persisted same-session goals",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/goal/goal-round-driver/package.json b/packages/goal/goal-round-driver/package.json
index 1c1b3f461f..6a43469b1d 100644
--- a/packages/goal/goal-round-driver/package.json
+++ b/packages/goal/goal-round-driver/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-goal-round-driver",
   "description": "Race-fenced same-session goal-round driver",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/goal/goal/package.json b/packages/goal/goal/package.json
index 04cac37baf..e4664dffef 100644
--- a/packages/goal/goal/package.json
+++ b/packages/goal/goal/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-goal",
   "description": "Event-sourced same-session goal state and lifecycle service for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/goal/tool-goal/package.json b/packages/goal/tool-goal/package.json
index 5af8513dc2..69f3285384 100644
--- a/packages/goal/tool-goal/package.json
+++ b/packages/goal/tool-goal/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-tool-goal",
   "description": "Model-facing same-session goal tools with execution-time authority checks",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/guard/repeat-tool-reminder/package.json b/packages/guard/repeat-tool-reminder/package.json
index 05046c8ec7..e8fcc60605 100644
--- a/packages/guard/repeat-tool-reminder/package.json
+++ b/packages/guard/repeat-tool-reminder/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-repeat-tool-reminder",
   "description": "Repeat-tool-call guard plugin: advisory reminders when an agent loops on identical tool calls",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/guard/timeout-policy/package.json b/packages/guard/timeout-policy/package.json
index 968f3eb851..b7f22c3002 100644
--- a/packages/guard/timeout-policy/package.json
+++ b/packages/guard/timeout-policy/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-tool-call-timeout-policy",
   "description": "Tool-call timeout policy: a tools/execute wrapper that arms a per-tool deadline on exec.signal and returns TOOL_TIMEOUT when it wins",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/hooks/hook-protocol/package.json b/packages/hooks/hook-protocol/package.json
index 6f7999e48a..a2400f2893 100644
--- a/packages/hooks/hook-protocol/package.json
+++ b/packages/hooks/hook-protocol/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-hook-protocol",
   "description": "Shared Claude Code / Codex hook wire protocol: matcher engine, stdin/exit-code/stdout codec, multi-hook merge, and hook/* session events",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/hooks/hooks-claude-code/package.json b/packages/hooks/hooks-claude-code/package.json
index bd189d6cc6..1db3521903 100644
--- a/packages/hooks/hooks-claude-code/package.json
+++ b/packages/hooks/hooks-claude-code/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-hooks-claude-code",
   "description": "Bridge plugin: run a Claude Code hooks.json / settings hook config on the DeepSeek Harness interception seams",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/hooks/hooks-codex/package.json b/packages/hooks/hooks-codex/package.json
index 9baa76b184..3ed5db1650 100644
--- a/packages/hooks/hooks-codex/package.json
+++ b/packages/hooks/hooks-codex/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-hooks-codex",
   "description": "Bridge plugin: run a Codex hooks.json hook config on the DeepSeek Harness interception seams",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/host/directory-picker-auto/package.json b/packages/host/directory-picker-auto/package.json
index 99cd165d16..fc35b3d067 100644
--- a/packages/host/directory-picker-auto/package.json
+++ b/packages/host/directory-picker-auto/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-host-directory-picker-auto",
   "description": "Adaptive chooser of the directory-picker seam: resolves the host situation at boot and mounts the native or browse backend for the DeepSeek Harness web GUI host",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/host/directory-picker-browse/package.json b/packages/host/directory-picker-browse/package.json
index d9f21b15b2..850081c48a 100644
--- a/packages/host/directory-picker-browse/package.json
+++ b/packages/host/directory-picker-browse/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-host-directory-picker-browse",
   "description": "In-app browsing backend of the directory-picker seam (listing/creation primitives over the host filesystem)",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/host/directory-picker-native/package.json b/packages/host/directory-picker-native/package.json
index b8aa415ce8..36d4c902da 100644
--- a/packages/host/directory-picker-native/package.json
+++ b/packages/host/directory-picker-native/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-host-directory-picker-native",
   "description": "Native-OS-chooser backend of the directory-picker seam for the DeepSeek Harness web GUI host",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/host/directory-picker/package.json b/packages/host/directory-picker/package.json
index 26e93f2440..a930512ac0 100644
--- a/packages/host/directory-picker/package.json
+++ b/packages/host/directory-picker/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-host-directory-picker",
   "description": "Abstract workspace-directory picking seam (ctx.directoryPicker) for the DeepSeek Harness web GUI host",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/host/frontend-static/package.json b/packages/host/frontend-static/package.json
index c8e54a088b..3caae0efac 100644
--- a/packages/host/frontend-static/package.json
+++ b/packages/host/frontend-static/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-host-frontend-static",
   "description": "SPA dist server for the Web shell: owns the webserver fallback seat, serving explicit index entries and static assets with traversal rejection and 404 misses",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/host/open-in-app/package.json b/packages/host/open-in-app/package.json
index 6e9c16bbcb..9c070ef429 100644
--- a/packages/host/open-in-app/package.json
+++ b/packages/host/open-in-app/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-host-open-in-app",
   "description": "Host half of open-in-app: resolved application catalog, icons, and the launch endpoint as three webServer routes",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/host/plugin-inventory/package.json b/packages/host/plugin-inventory/package.json
index 792d4ce238..616032b4ee 100644
--- a/packages/host/plugin-inventory/package.json
+++ b/packages/host/plugin-inventory/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-host-plugin-inventory",
   "description": "Read-only Remote projection of current Cordis Loader plugin state",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/host/webserver/package.json b/packages/host/webserver/package.json
index e5c6cb19c3..8fbede6744 100644
--- a/packages/host/webserver/package.json
+++ b/packages/host/webserver/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-host-webserver",
   "description": "Web route-registration plugin: HTTP and upgrade routes, index transform taps, and static dist fallback; knows no harness concepts",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/identity/anonymous-user-id/package.json b/packages/identity/anonymous-user-id/package.json
index f97f8f67f8..53d9671751 100644
--- a/packages/identity/anonymous-user-id/package.json
+++ b/packages/identity/anonymous-user-id/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-anonymous-user-id",
   "description": "Shared anonymous user identity for DeepSeek Harness telemetry and feedback correlation",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/interaction/commands/package.json b/packages/interaction/commands/package.json
index 5cee082b4f..0be908a553 100644
--- a/packages/interaction/commands/package.json
+++ b/packages/interaction/commands/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-commands",
   "description": "Plugin-owned human command registry for DeepSeek Harness UIs",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/interaction/permission-presets/package.json b/packages/interaction/permission-presets/package.json
index dd85caf5f5..ebba3f0f18 100644
--- a/packages/interaction/permission-presets/package.json
+++ b/packages/interaction/permission-presets/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-permission-presets",
   "description": "User-facing permission presets (ctx.permissionPresets) for the DeepSeek Harness: one product-level Permissions select bundling the sandbox-mode and approval-policy knobs, written through to their own session events",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/interaction/tool-ask-user/package.json b/packages/interaction/tool-ask-user/package.json
index e825300c74..03efa1b837 100644
--- a/packages/interaction/tool-ask-user/package.json
+++ b/packages/interaction/tool-ask-user/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-tool-ask-user",
   "description": "Model-facing ask_user_question tool over the ctx.userQuestions seam",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/interaction/user-approval/package.json b/packages/interaction/user-approval/package.json
index 71faeb1b71..6e8354834c 100644
--- a/packages/interaction/user-approval/package.json
+++ b/packages/interaction/user-approval/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-user-approval",
   "description": "User-approval seam (ctx.approval) for the DeepSeek Harness: one-shot permission decisions dispatched to composed answerers over the approval/request waterfall, fail-closed by default",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/interaction/user-questions/package.json b/packages/interaction/user-questions/package.json
index 0e428bbdb4..cbe8a2854b 100644
--- a/packages/interaction/user-questions/package.json
+++ b/packages/interaction/user-questions/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-user-questions",
   "description": "Abstract user-questions seam (ctx.userQuestions) for asking the human during agent runs",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/jobs/jobs-local/package.json b/packages/jobs/jobs-local/package.json
index 31f9267c94..110ba43f3e 100644
--- a/packages/jobs/jobs-local/package.json
+++ b/packages/jobs/jobs-local/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-jobs-local",
   "description": "Process-local implementation of the DeepSeek Harness background job registry seam",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/jobs/jobs/package.json b/packages/jobs/jobs/package.json
index c5d4a858cf..ff310752ce 100644
--- a/packages/jobs/jobs/package.json
+++ b/packages/jobs/jobs/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-jobs",
   "description": "Background job registry (ctx.jobs) for the DeepSeek Harness — shared ids, owner isolation, polling, cancellation, and completion listeners for long-running tool work",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/jobs/tool-jobs/package.json b/packages/jobs/tool-jobs/package.json
index 6857a8ef28..8c6adfb1c3 100644
--- a/packages/jobs/tool-jobs/package.json
+++ b/packages/jobs/tool-jobs/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-tool-jobs",
   "description": "Model-facing background job control tools (job_output, job_list, job_kill) over the ctx.jobs registry",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/llm/deepseek-llm-api-extensions/package.json b/packages/llm/deepseek-llm-api-extensions/package.json
index 73810ece1a..88bb421385 100644
--- a/packages/llm/deepseek-llm-api-extensions/package.json
+++ b/packages/llm/deepseek-llm-api-extensions/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-deepseek-llm-api-extensions",
   "description": "Additive request-field registry for the official DeepSeek LLM API adapter",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/llm/llm-deepseek/package.json b/packages/llm/llm-deepseek/package.json
index 13fd0827f4..9db0a60fdc 100644
--- a/packages/llm/llm-deepseek/package.json
+++ b/packages/llm/llm-deepseek/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-llm-deepseek",
   "description": "DeepSeek chat-completions adapter for the DeepSeek Harness LLM seam",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/llm/llm-pi-ai/package.json b/packages/llm/llm-pi-ai/package.json
index c1a9fea59e..6a10d5a6bb 100644
--- a/packages/llm/llm-pi-ai/package.json
+++ b/packages/llm/llm-pi-ai/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-llm-pi-ai",
   "description": "pi-ai-backed DeepSeek adapter for the DeepSeek Harness LLM seam (design-verification twin of dsh-llm-deepseek)",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/llm/llm-retry/package.json b/packages/llm/llm-retry/package.json
index ce6ffd89f7..f226562e4d 100644
--- a/packages/llm/llm-retry/package.json
+++ b/packages/llm/llm-retry/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-llm-retry",
   "description": "Provider-routed LLM request retry policy for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/llm/llm/package.json b/packages/llm/llm/package.json
index a96f7ea519..570ac9af86 100644
--- a/packages/llm/llm/package.json
+++ b/packages/llm/llm/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-llm",
   "description": "Provider-neutral LLM service interface for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/llm/plugin-package-inventory-deepseek/package.json b/packages/llm/plugin-package-inventory-deepseek/package.json
index d32368def6..f04bbc0539 100644
--- a/packages/llm/plugin-package-inventory-deepseek/package.json
+++ b/packages/llm/plugin-package-inventory-deepseek/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-plugin-package-inventory-deepseek",
   "description": "Active Loader-backed plugin package inventory for official DeepSeek LLM API requests",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/llm/token-meter/package.json b/packages/llm/token-meter/package.json
index 5b080f0800..44223f3a96 100644
--- a/packages/llm/token-meter/package.json
+++ b/packages/llm/token-meter/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-token-meter",
   "description": "Replay-aware token measurement service (ctx.tokenMeter) for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/lsp/lsp-stdio/package.json b/packages/lsp/lsp-stdio/package.json
index 86977faa2f..6428068eb0 100644
--- a/packages/lsp/lsp-stdio/package.json
+++ b/packages/lsp/lsp-stdio/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-lsp-stdio",
   "description": "Generic stdio language-server provider for the DeepSeek Harness LSP capability seam (ctx.lsp) — spawns configured servers, translates JSON-RPC, and serves transient-open goToDefinition/findReferences/goToImplementation/hover queries in the host filesystem namespace",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/lsp/lsp/package.json b/packages/lsp/lsp/package.json
index aeaa6822c6..4d8df70f5a 100644
--- a/packages/lsp/lsp/package.json
+++ b/packages/lsp/lsp/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-lsp",
   "description": "Abstract LSP capability seam (ctx.lsp) for the DeepSeek Harness — language-server provider registry keyed by branded id and extension mapping, order-independent per-query selection, normalized definition/references/implementation/hover requests and results, and the LspError taxonomy",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/lsp/tool-lsp/package.json b/packages/lsp/tool-lsp/package.json
index 1ff7e5756d..f4df13c8a1 100644
--- a/packages/lsp/tool-lsp/package.json
+++ b/packages/lsp/tool-lsp/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-tool-lsp",
   "description": "Model-facing lsp tool over the DeepSeek Harness LSP capability seam (ctx.lsp) — one read-only tool with goToDefinition/findReferences/goToImplementation/hover operations, one-based UTF-16 cursor coordinates, bounded location rendering, and hover normalization",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/mcp/mcp-client/package.json b/packages/mcp/mcp-client/package.json
index 77e86da0d7..d5573b3f94 100644
--- a/packages/mcp/mcp-client/package.json
+++ b/packages/mcp/mcp-client/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-mcp-client",
   "description": "MCP client bridge: connects to MCP servers and registers their tools on ctx.tools",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/plan/plan-mode/package.json b/packages/plan/plan-mode/package.json
index 710f6eb629..7d5898dacd 100644
--- a/packages/plan/plan-mode/package.json
+++ b/packages/plan/plan-mode/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-plan-mode",
   "description": "Logged per-agent plan mode with deployment guidance, a direct slash command, and a user-reviewed exit",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/preset/agent-presets/package.json b/packages/preset/agent-presets/package.json
index 0e54d1ec7d..61a2ad9f75 100644
--- a/packages/preset/agent-presets/package.json
+++ b/packages/preset/agent-presets/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-agent-presets",
   "description": "Per-session agent composition from preset cordis.yml files for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/preset/persona/package.json b/packages/preset/persona/package.json
index b17e8bda02..ec116bd3dd 100644
--- a/packages/preset/persona/package.json
+++ b/packages/preset/persona/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-persona",
   "description": "Composition-authored deployment persona section for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/runtime-diagnostics/invariants/package.json b/packages/runtime-diagnostics/invariants/package.json
index cd4668a70a..2d10a8814f 100644
--- a/packages/runtime-diagnostics/invariants/package.json
+++ b/packages/runtime-diagnostics/invariants/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-invariants",
   "description": "Registry service for package-owned DeepSeek Harness runtime invariants",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/sandbox/sandbox-local/package.json b/packages/sandbox/sandbox-local/package.json
index 1e91e6eba2..76bf039d88 100644
--- a/packages/sandbox/sandbox-local/package.json
+++ b/packages/sandbox/sandbox-local/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-sandbox-local",
   "description": "Local process-sandbox backends for the DeepSeek Harness sandbox seam: bwrap, the npm-distributed landlock-run launcher, macOS Seatbelt, or the Windows ACL restricted-token runner — functionally probed, fail-closed",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/sandbox/sandbox-policy/package.json b/packages/sandbox/sandbox-policy/package.json
index e1589090a3..686d4266ba 100644
--- a/packages/sandbox/sandbox-policy/package.json
+++ b/packages/sandbox/sandbox-policy/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-sandbox-policy",
   "description": "Per-call sandbox policy resolver and current model context: deployment fallbacks plus each session's mode and workspace root, shared by every enforcing capability family",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/sandbox/sandbox-windows-acl/package.json b/packages/sandbox/sandbox-windows-acl/package.json
index 5c9827262d..b5f376607c 100644
--- a/packages/sandbox/sandbox-windows-acl/package.json
+++ b/packages/sandbox/sandbox-windows-acl/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-sandbox-windows-acl",
   "description": "Windows ACL write-restriction sandbox backend (restricted-token spawn with capability-SID write allowlist) for the DeepSeek Harness sandbox seam",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/sandbox/sandbox/package.json b/packages/sandbox/sandbox/package.json
index 9fdfb59152..05e539d567 100644
--- a/packages/sandbox/sandbox/package.json
+++ b/packages/sandbox/sandbox/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-sandbox",
   "description": "Abstract process-sandbox seam (ctx.sandbox) for the DeepSeek Harness: same-world confinement vocabulary and the SandboxProvider contract",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/schedule/schedule/package.json b/packages/schedule/schedule/package.json
index 142ef6a2dc..eb43fbbed4 100644
--- a/packages/schedule/schedule/package.json
+++ b/packages/schedule/schedule/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-schedule",
   "description": "Agent-scoped durable after, at, and fixed-rate reminders over the session event log",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/sdk/client/package.json b/packages/sdk/client/package.json
index c668128c2f..272fbab849 100644
--- a/packages/sdk/client/package.json
+++ b/packages/sdk/client/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-sdk-client",
   "description": "TypeScript client SDK for driving a DeepSeek Harness runtime subprocess over stdio JSON-RPC: the DeepSeekHarness high-level turns API and the lower-level HarnessClient",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/sdk/protocol/package.json b/packages/sdk/protocol/package.json
index c56b34204f..e65cf001d0 100644
--- a/packages/sdk/protocol/package.json
+++ b/packages/sdk/protocol/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-sdk-protocol",
   "description": "Shared wire protocol for the DeepSeek Harness SDK runtime: the newline-delimited JSON-RPC stdio transport and the named request, result, and notification types spoken between the runtime server and SDK clients",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/sdk/server/package.json b/packages/sdk/server/package.json
index 3a9b9123ab..56d1e7cad5 100644
--- a/packages/sdk/server/package.json
+++ b/packages/sdk/server/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-sdk-jsonrpc-server",
   "description": "Stdio JSON-RPC server plugin for out-of-process DeepSeek Harness SDK clients",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/session-query/session-log-export/package.json b/packages/session-query/session-log-export/package.json
index 8992ab79e9..f63702c964 100644
--- a/packages/session-query/session-log-export/package.json
+++ b/packages/session-query/session-log-export/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-session-log-export",
   "description": "Web Session-log export command and shared download dialog",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/session-query/session-query-sqlite/package.json b/packages/session-query/session-query-sqlite/package.json
index 198bd6a8f4..ed79f3840e 100644
--- a/packages/session-query/session-query-sqlite/package.json
+++ b/packages/session-query/session-query-sqlite/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-session-query-sqlite",
   "description": "Concrete ctx.sessionQuery backend with SQLite FTS5 search",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/session-query/session-query/package.json b/packages/session-query/session-query/package.json
index f925820e48..e383b1b413 100644
--- a/packages/session-query/session-query/package.json
+++ b/packages/session-query/session-query/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-session-query",
   "description": "Combined session query service contract with concrete reads, traces, and filters",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/session-query/tool-session-query/package.json b/packages/session-query/tool-session-query/package.json
index 2296fb8ec4..1ad9a77b5c 100644
--- a/packages/session-query/tool-session-query/package.json
+++ b/packages/session-query/tool-session-query/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-tool-session-query",
   "description": "Workspace-authorized model-facing session history search, trace, and event read tools",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/session/session-checkpoint-policy/package.json b/packages/session/session-checkpoint-policy/package.json
index 50cb01f60f..a817b06e4e 100644
--- a/packages/session/session-checkpoint-policy/package.json
+++ b/packages/session/session-checkpoint-policy/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-session-checkpoint-policy",
   "description": "Semantic session durability checkpoints before model requests and tool side effects",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/session/session-format-catalog/package.json b/packages/session/session-format-catalog/package.json
index abc714542c..f3ea35a6c8 100644
--- a/packages/session/session-format-catalog/package.json
+++ b/packages/session/session-format-catalog/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-session-format-catalog",
   "description": "Build-static first-party Session format codec and migration catalog",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/session/session-format-v0-to-v1/package.json b/packages/session/session-format-v0-to-v1/package.json
index e2e6285992..ca5d77d640 100644
--- a/packages/session/session-format-v0-to-v1/package.json
+++ b/packages/session/session-format-v0-to-v1/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-session-format-v0-to-v1",
   "description": "Frozen released-v0 Session codec and identity migration to v1",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/session/session-format-v1-to-v2/package.json b/packages/session/session-format-v1-to-v2/package.json
index b2e9861786..a44eef9856 100644
--- a/packages/session/session-format-v1-to-v2/package.json
+++ b/packages/session/session-format-v1-to-v2/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-session-format-v1-to-v2",
   "description": "Frozen released-v1 Session codec and assistant-stream migration to v2",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/session/session-format-v2-to-v3/package.json b/packages/session/session-format-v2-to-v3/package.json
index 8402b49575..637cd4f0fe 100644
--- a/packages/session/session-format-v2-to-v3/package.json
+++ b/packages/session/session-format-v2-to-v3/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-session-format-v2-to-v3",
   "description": "Streaming system-prompt, canonical-envelope and PTC migration into V3",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/session/session-format/package.json b/packages/session/session-format/package.json
index bf064258a8..4eaefdbea2 100644
--- a/packages/session/session-format/package.json
+++ b/packages/session/session-format/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-session-format",
   "description": "Streaming adjacent Session format migration machinery",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/session/session-log-deepseek/package.json b/packages/session/session-log-deepseek/package.json
index 19af009069..4cbdc9e4f1 100644
--- a/packages/session/session-log-deepseek/package.json
+++ b/packages/session/session-log-deepseek/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-session-log-deepseek",
   "description": "Incremental lossless session-log request extension for the official DeepSeek LLM API",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/session/session-persistence-jsonl/package.json b/packages/session/session-persistence-jsonl/package.json
index 5949c1cfea..2756ed8ebd 100644
--- a/packages/session/session-persistence-jsonl/package.json
+++ b/packages/session/session-persistence-jsonl/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-session-persistence-jsonl",
   "description": "JSONL durable session persistence backend for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/session/session-persistence/package.json b/packages/session/session-persistence/package.json
index e6dc547141..1562f0f190 100644
--- a/packages/session/session-persistence/package.json
+++ b/packages/session/session-persistence/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-session-persistence",
   "description": "Abstract durable session persistence seam (ctx.sessionPersistence) for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/session/session-projection-cache/package.json b/packages/session/session-projection-cache/package.json
index b9922285fd..bd1672e91a 100644
--- a/packages/session/session-projection-cache/package.json
+++ b/packages/session/session-projection-cache/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-session-projection-cache",
   "description": "Persisted projection cache (ctx.sessionProjectionCache): durable per-session checkpoint records on the session_projcache storage domain (per-record layout), throttled write-behind, and the cached listing read",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/session/session-projection/package.json b/packages/session/session-projection/package.json
index 4b5fdbbbf1..6f426ab889 100644
--- a/packages/session/session-projection/package.json
+++ b/packages/session/session-projection/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-session-projection",
   "description": "Session-projection seam: the merge-extensible projection type table, the provider contract, and the ctx.sessionProjections registry serving whole current values of log-derived per-session state",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/session/session-stats/package.json b/packages/session/session-stats/package.json
index b604c54f83..c62eb3b449 100644
--- a/packages/session/session-stats/package.json
+++ b/packages/session/session-stats/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-session-stats",
   "description": "Whole-log conversation counts and wall times projection (sessionStats) for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/session/session-telemetry-otel/package.json b/packages/session/session-telemetry-otel/package.json
index ac0eea1446..2da6d75acb 100644
--- a/packages/session/session-telemetry-otel/package.json
+++ b/packages/session/session-telemetry-otel/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-session-telemetry-otel",
   "description": "OpenTelemetry backend for the DeepSeek Harness telemetry seam: hands captured session records to the OTel JS SDK's log pipeline",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/session/session-telemetry/package.json b/packages/session/session-telemetry/package.json
index 195062fad7..1278879299 100644
--- a/packages/session/session-telemetry/package.json
+++ b/packages/session/session-telemetry/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-session-telemetry",
   "description": "SessionTelemetryBackend seam for the DeepSeek Harness: session-event capture, projection, redaction, and handoff to a reporting backend",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/session/session-title-all-prompts-llm/package.json b/packages/session/session-title-all-prompts-llm/package.json
index 3d1ff5afc1..4ceac7914e 100644
--- a/packages/session/session-title-all-prompts-llm/package.json
+++ b/packages/session/session-title-all-prompts-llm/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-session-title-all-prompts-llm",
   "description": "All-user-messages LLM provider plugin for DeepSeek Harness session titles",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/session/session-title-first-prompt-llm/package.json b/packages/session/session-title-first-prompt-llm/package.json
index ac6538d538..e88246e9e6 100644
--- a/packages/session/session-title-first-prompt-llm/package.json
+++ b/packages/session/session-title-first-prompt-llm/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-session-title-first-prompt-llm",
   "description": "First-message LLM provider plugin for DeepSeek Harness session titles",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/session/session-title-llm/package.json b/packages/session/session-title-llm/package.json
index abddcf8b71..b7eef1d212 100644
--- a/packages/session/session-title-llm/package.json
+++ b/packages/session/session-title-llm/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-session-title-llm",
   "description": "Shared LLM generation policy for DeepSeek Harness session-title providers",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/session/session-title/package.json b/packages/session/session-title/package.json
index 87124a468c..a7e9894f61 100644
--- a/packages/session/session-title/package.json
+++ b/packages/session/session-title/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-session-title",
   "description": "Log-backed session title service and provider registry for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/session/session-turn-outline/package.json b/packages/session/session-turn-outline/package.json
index ca2196013a..14153bed1f 100644
--- a/packages/session/session-turn-outline/package.json
+++ b/packages/session/session-turn-outline/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-session-turn-outline",
   "description": "Whole-log turn outline projection (turnOutline) for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/settings/settings-file/package.json b/packages/settings/settings-file/package.json
index 52779af384..6ab3a5b2b0 100644
--- a/packages/settings/settings-file/package.json
+++ b/packages/settings/settings-file/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-settings-file",
   "description": "File-backed settings provider (settings.yaml) for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/settings/settings/package.json b/packages/settings/settings/package.json
index c17b020019..65a086cf07 100644
--- a/packages/settings/settings/package.json
+++ b/packages/settings/settings/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-settings",
   "description": "Abstract user-settings seam (ctx.settings) for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/shell/bash-local/package.json b/packages/shell/bash-local/package.json
index ed2bfdbdd0..b5ce1e5135 100644
--- a/packages/shell/bash-local/package.json
+++ b/packages/shell/bash-local/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-bash-local",
   "description": "Local-subprocess implementation of the DeepSeek Harness bash executor seam",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/shell/bash-sandbox/package.json b/packages/shell/bash-sandbox/package.json
index b66267f811..bfe649350b 100644
--- a/packages/shell/bash-sandbox/package.json
+++ b/packages/shell/bash-sandbox/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-bash-sandbox",
   "description": "Sandbox-consuming implementation of the DeepSeek Harness bash executor seam (confines every command via ctx.sandbox, reports denial/enforcement result facts)",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/shell/pwsh-local/package.json b/packages/shell/pwsh-local/package.json
index 0e2d994d9a..6925fc8509 100644
--- a/packages/shell/pwsh-local/package.json
+++ b/packages/shell/pwsh-local/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-pwsh-local",
   "description": "Local PowerShell implementation of the DeepSeek Harness bash executor seam",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/shell/pwsh-sandbox/package.json b/packages/shell/pwsh-sandbox/package.json
index 2140443825..ad46833902 100644
--- a/packages/shell/pwsh-sandbox/package.json
+++ b/packages/shell/pwsh-sandbox/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-pwsh-sandbox",
   "description": "Sandbox-consuming implementation of the DeepSeek Harness PowerShell executor seam (confines every command via ctx.sandbox, reports denial/enforcement result facts)",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/shell/shell-env/package.json b/packages/shell/shell-env/package.json
index bc3f4bfe98..ddc0df2fd2 100644
--- a/packages/shell/shell-env/package.json
+++ b/packages/shell/shell-env/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-shell-env",
   "description": "Tool-independent managed DSH_* shell environment registry",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/shell/shell/package.json b/packages/shell/shell/package.json
index 388c903035..57a8573d6b 100644
--- a/packages/shell/shell/package.json
+++ b/packages/shell/shell/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-shell",
   "description": "Abstract bash executor seam (ctx.shell) for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/shell/tool-bash-persistent/package.json b/packages/shell/tool-bash-persistent/package.json
index b42c104c3a..8551bd66d5 100644
--- a/packages/shell/tool-bash-persistent/package.json
+++ b/packages/shell/tool-bash-persistent/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-tool-bash-persistent",
   "description": "Model-facing owner-scoped persistent Bash tool backed by the Harness PTY service",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/shell/tool-bash/package.json b/packages/shell/tool-bash/package.json
index 35cdadb6da..c6d4a937b1 100644
--- a/packages/shell/tool-bash/package.json
+++ b/packages/shell/tool-bash/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-tool-bash",
   "description": "Model-facing bash tool with optional generic background-job and sandbox-escalation support",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/shell/tool-pwsh-persistent/package.json b/packages/shell/tool-pwsh-persistent/package.json
index a464c68997..ae0d009f52 100644
--- a/packages/shell/tool-pwsh-persistent/package.json
+++ b/packages/shell/tool-pwsh-persistent/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-tool-pwsh-persistent",
   "description": "Model-facing owner-scoped persistent PowerShell tool backed by the Harness PTY service",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/shell/tool-pwsh/package.json b/packages/shell/tool-pwsh/package.json
index 064cf4d4c5..30642f2ef5 100644
--- a/packages/shell/tool-pwsh/package.json
+++ b/packages/shell/tool-pwsh/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-tool-pwsh",
   "description": "Model-facing pwsh tool over the bash executor seam",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/skill/skill-badge/package.json b/packages/skill/skill-badge/package.json
index c9ad804b17..dc0d6728e2 100644
--- a/packages/skill/skill-badge/package.json
+++ b/packages/skill/skill-badge/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-skill-badge",
   "description": "Bundled dsh badge skill provider for DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/skill/skill-filesystem/package.json b/packages/skill/skill-filesystem/package.json
index 23a5aae17a..afdb646aa6 100644
--- a/packages/skill/skill-filesystem/package.json
+++ b/packages/skill/skill-filesystem/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-skill-filesystem",
   "description": "Local filesystem skill provider for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/skill/skill/package.json b/packages/skill/skill/package.json
index 67b9a14e2c..01be87e133 100644
--- a/packages/skill/skill/package.json
+++ b/packages/skill/skill/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-skill",
   "description": "Agent skill provider registry for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/skill/tool-skill/package.json b/packages/skill/tool-skill/package.json
index 916f22c0c0..a12fcde6eb 100644
--- a/packages/skill/tool-skill/package.json
+++ b/packages/skill/tool-skill/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-tool-skill",
   "description": "Model-facing skill loading tool for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/spill/spill-local/package.json b/packages/spill/spill-local/package.json
index 57570f70cf..510acaf6b1 100644
--- a/packages/spill/spill-local/package.json
+++ b/packages/spill/spill-local/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-spill-local",
   "description": "Local-filesystem implementation of the DeepSeek Harness spill storage seam (private session-scoped files)",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/spill/spill-policy/package.json b/packages/spill/spill-policy/package.json
index 816effcb20..e6e1dee090 100644
--- a/packages/spill/spill-policy/package.json
+++ b/packages/spill/spill-policy/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-spill-policy",
   "description": "Tool-result spill policy for the DeepSeek Harness — replaces oversized plain-text tool results with a retained preview plus a spill-file path (no service API)",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/spill/spill/package.json b/packages/spill/spill/package.json
index 0c76ff0273..b4a3c32097 100644
--- a/packages/spill/spill/package.json
+++ b/packages/spill/spill/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-spill",
   "description": "Abstract spill storage seam (ctx.spillStore) for the DeepSeek Harness — save oversized tool text and return a retrieval locator",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/storage/storage-domain/package.json b/packages/storage/storage-domain/package.json
index cd0bd016c3..8fe6912da9 100644
--- a/packages/storage/storage-domain/package.json
+++ b/packages/storage/storage-domain/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-storage-domain",
   "description": "Domain data form (ctx.storage.domain): schema-validated, event-emitting KV domains over storage backends for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/storage/storage-json/package.json b/packages/storage/storage-json/package.json
index 64a6bb9e71..9d21ecfec2 100644
--- a/packages/storage/storage-json/package.json
+++ b/packages/storage/storage-json/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-storage-json",
   "description": "JSON file KV storage backend for the DeepSeek Harness storage hub",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/storage/storage-sqlite/package.json b/packages/storage/storage-sqlite/package.json
index 0f60db9f4e..d8dfc56910 100644
--- a/packages/storage/storage-sqlite/package.json
+++ b/packages/storage/storage-sqlite/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-storage-sqlite",
   "description": "SQLite storage backend (kv facet) for the DeepSeek Harness storage hub",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/storage/storage/package.json b/packages/storage/storage/package.json
index 1bdb7236d6..a418159f5c 100644
--- a/packages/storage/storage/package.json
+++ b/packages/storage/storage/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-storage",
   "description": "Storage hub (ctx.storage): named backend registry plus mounted data-form facilities for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/subagent/subagent-acp/package.json b/packages/subagent/subagent-acp/package.json
index 024d961e53..45e0f6c99c 100644
--- a/packages/subagent/subagent-acp/package.json
+++ b/packages/subagent/subagent-acp/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-subagent-acp",
   "description": "Out-of-process ACP subagent backend: drives a child agent in a spawned subprocess over the Agent Client Protocol",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/subagent/subagent-claude-code/package.json b/packages/subagent/subagent-claude-code/package.json
index 9bd02b02a4..19d90f5a92 100644
--- a/packages/subagent/subagent-claude-code/package.json
+++ b/packages/subagent/subagent-claude-code/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-subagent-claude-code",
   "description": "One-shot Claude Code subagent provider over the official Agent SDK",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/subagent/subagent-codex/package.json b/packages/subagent/subagent-codex/package.json
index 62b8a989b3..c434b0b52d 100644
--- a/packages/subagent/subagent-codex/package.json
+++ b/packages/subagent/subagent-codex/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-subagent-codex",
   "description": "One-shot Codex subagent provider over the official app-server protocol",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/subagent/subagent-dsh-sdk/package.json b/packages/subagent/subagent-dsh-sdk/package.json
index 7180f10662..1a378f53f2 100644
--- a/packages/subagent/subagent-dsh-sdk/package.json
+++ b/packages/subagent/subagent-dsh-sdk/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-subagent-dsh-sdk",
   "description": "Out-of-process SDK subagent backend: drives a child DeepSeek Harness runtime subprocess over stdio JSON-RPC through the TypeScript SDK client",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/subagent/subagent-fork-in-process/package.json b/packages/subagent/subagent-fork-in-process/package.json
index e5cf64fe0c..22d147631e 100644
--- a/packages/subagent/subagent-fork-in-process/package.json
+++ b/packages/subagent/subagent-fork-in-process/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-subagent-fork-in-process",
   "description": "In-process fork subagent backend: runs a child agent seeded with a prefix of the parent's log",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/subagent/subagent-in-process-driver/package.json b/packages/subagent/subagent-in-process-driver/package.json
index 3a256d0f24..2c3ede08bd 100644
--- a/packages/subagent/subagent-in-process-driver/package.json
+++ b/packages/subagent/subagent-in-process-driver/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-subagent-in-process-driver",
   "description": "Shared in-process subagent run driver: drives a child agent on ctx.agents (used by the spawn and fork backends)",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/subagent/subagent-spawn-in-process/package.json b/packages/subagent/subagent-spawn-in-process/package.json
index 0f6449cb2c..a7c5e2f2a6 100644
--- a/packages/subagent/subagent-spawn-in-process/package.json
+++ b/packages/subagent/subagent-spawn-in-process/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-subagent-spawn-in-process",
   "description": "In-process spawn subagent backend: runs a fresh child agent on ctx.agents",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/subagent/subagent/package.json b/packages/subagent/subagent/package.json
index 2ba82d9c88..ea19ef9c7b 100644
--- a/packages/subagent/subagent/package.json
+++ b/packages/subagent/subagent/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-subagent",
   "description": "Abstract subagent seam (ctx.subagents): named-provider registry for delegating to child agents",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/subagent/tool-subagent-control/package.json b/packages/subagent/tool-subagent-control/package.json
index ede810039a..2272a1c6a2 100644
--- a/packages/subagent/tool-subagent-control/package.json
+++ b/packages/subagent/tool-subagent-control/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-tool-subagent-control",
   "description": "Globally named send_message, interrupt_agent, and list_agents tools over ctx.subagents continuations",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/subagent/tool-subagent/package.json b/packages/subagent/tool-subagent/package.json
index 9eeda985de..aba9a126eb 100644
--- a/packages/subagent/tool-subagent/package.json
+++ b/packages/subagent/tool-subagent/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-tool-subagent",
   "description": "Model-facing subagent delegation tool over the ctx.subagents seam",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/subprocess/subprocess-local/package.json b/packages/subprocess/subprocess-local/package.json
index 1b17ce8366..e9ee873f97 100644
--- a/packages/subprocess/subprocess-local/package.json
+++ b/packages/subprocess/subprocess-local/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-subprocess-local",
   "description": "Local-subprocess implementation of the DeepSeek Harness subprocess seam",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/subprocess/subprocess/package.json b/packages/subprocess/subprocess/package.json
index fbba4abec0..f57e763bd7 100644
--- a/packages/subprocess/subprocess/package.json
+++ b/packages/subprocess/subprocess/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-subprocess",
   "description": "Subprocess seam (ctx.subprocess) for the DeepSeek Harness — managed process groups, bounded spill-backed output, and escalated kills behind one abstract service",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/subprocess/win32-process/package.json b/packages/subprocess/win32-process/package.json
index c3e2823e96..0338895db5 100644
--- a/packages/subprocess/win32-process/package.json
+++ b/packages/subprocess/win32-process/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-win32-process",
   "description": "Shared low-level Win32 process, stdio, and Job Object primitives",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/terminal/terminal-bash/package.json b/packages/terminal/terminal-bash/package.json
index a00d58715b..619cd97da3 100644
--- a/packages/terminal/terminal-bash/package.json
+++ b/packages/terminal/terminal-bash/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-terminal-bash",
   "description": "Persistent shell PTY backend over the DeepSeek Harness subprocess terminal primitive",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/terminal/terminal/package.json b/packages/terminal/terminal/package.json
index a3c3d2fe0e..6ae9f278ee 100644
--- a/packages/terminal/terminal/package.json
+++ b/packages/terminal/terminal/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-terminal",
   "description": "Persistent PTY session seam for the DeepSeek Harness — owner-scoped ids, backend registry, interactive sends, reads, signals, and awaited cleanup",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/terminal/tool-terminal/package.json b/packages/terminal/tool-terminal/package.json
index 1d4f1073e2..b9467f6204 100644
--- a/packages/terminal/tool-terminal/package.json
+++ b/packages/terminal/tool-terminal/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-tool-terminal",
   "description": "Six model-facing persistent PTY tools with owner isolation and generic background-job integration",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/test-support/agent-loop-testkit/package.json b/packages/test-support/agent-loop-testkit/package.json
index da125d7e3e..e476648bfa 100644
--- a/packages/test-support/agent-loop-testkit/package.json
+++ b/packages/test-support/agent-loop-testkit/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-agent-loop-testkit",
   "description": "Prerequisite mounting, production AgentLoop drivers, and Inbox stubs for tests",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/test-support/client-runtime/package.json b/packages/test-support/client-runtime/package.json
index 44cd37bc91..0d6844ea6a 100644
--- a/packages/test-support/client-runtime/package.json
+++ b/packages/test-support/client-runtime/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-client-test-runtime",
   "description": "jsdom slot test runtime: real Cordis Context + SlotRegistry + UI renderer with test-owned session/workspace doubles for feature specs",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/test-support/llm-mock-server/package.json b/packages/test-support/llm-mock-server/package.json
index ab000270b4..7a238460fb 100644
--- a/packages/test-support/llm-mock-server/package.json
+++ b/packages/test-support/llm-mock-server/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-llm-mock-server",
   "description": "Scriptable OpenAI-compatible HTTP/SSE fault server for LLM recovery tests",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/test-support/llm-replay/package.json b/packages/test-support/llm-replay/package.json
index 27e9dbb497..d3e4e4540e 100644
--- a/packages/test-support/llm-replay/package.json
+++ b/packages/test-support/llm-replay/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-llm-replay",
   "description": "Replay LLM plugin: short-circuits llm/stream with model chunks reconstructed from a recorded session JSONL (keyless snapshot tests)",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/test-support/loader-smoke/package.json b/packages/test-support/loader-smoke/package.json
index 51d3e84d81..7958561a39 100644
--- a/packages/test-support/loader-smoke/package.json
+++ b/packages/test-support/loader-smoke/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-loader-smoke",
   "description": "Shared subprocess and direct-agent harness for keyless real-Loader example smoke tests",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/test-support/session-snapshot/package.json b/packages/test-support/session-snapshot/package.json
index 92c1c56cbd..f3a6468992 100644
--- a/packages/test-support/session-snapshot/package.json
+++ b/packages/test-support/session-snapshot/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-session-snapshot",
   "description": "Session-log snapshot core with an ACP protocol adapter, expected-output normalization, and fixture invariants",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/todo/tool-todo/package.json b/packages/todo/tool-todo/package.json
index 676d98dada..7eb98180dd 100644
--- a/packages/todo/tool-todo/package.json
+++ b/packages/todo/tool-todo/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-tool-todo",
   "description": "Model-facing todo_write tool over the DeepSeek Harness event-sourced session log",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/typert/generator/package.json b/packages/typert/generator/package.json
index 83d831de18..ab65157347 100644
--- a/packages/typert/generator/package.json
+++ b/packages/typert/generator/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-typert-generator",
   "description": "TypeScript project analyzer and model-driven Typert artifact generator",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/typert/loader/package.json b/packages/typert/loader/package.json
index 09a1445300..d0873289e6 100644
--- a/packages/typert/loader/package.json
+++ b/packages/typert/loader/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-typert-loader",
   "description": "Loader integration for generated Typert package contributions",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/typert/protocol/package.json b/packages/typert/protocol/package.json
index ece54b6a65..199936fcc5 100644
--- a/packages/typert/protocol/package.json
+++ b/packages/typert/protocol/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-typert-protocol",
   "description": "Compiler-independent Remote metadata and Typert provider protocols",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/typert/registry/package.json b/packages/typert/registry/package.json
index 1cb89d6249..307410ed20 100644
--- a/packages/typert/registry/package.json
+++ b/packages/typert/registry/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-typert-registry",
   "description": "Runtime registry for generated package reflection and Zod schemas",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/util/atomic-write/package.json b/packages/util/atomic-write/package.json
index 95afd47638..7aa769a1ba 100644
--- a/packages/util/atomic-write/package.json
+++ b/packages/util/atomic-write/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-atomic-write",
   "description": "Zero-dependency atomic file replacement: exclusive-create random-suffix temp + rename carrying the caller-stated permissions (writeFileAtomic)",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/util/brand/package.json b/packages/util/brand/package.json
index 2b1627e7c0..b108caf9cc 100644
--- a/packages/util/brand/package.json
+++ b/packages/util/brand/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-brand",
   "description": "Stateless branded primitive types for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/util/chunked-list/package.json b/packages/util/chunked-list/package.json
index 0796d94d1c..e93ccec925 100644
--- a/packages/util/chunked-list/package.json
+++ b/packages/util/chunked-list/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-chunked-list",
   "description": "Persistent append-only chunked lists with bounded copying and JSON checkpoint validation",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/util/crypto/package.json b/packages/util/crypto/package.json
index aa8f431c3a..3d1fb4e136 100644
--- a/packages/util/crypto/package.json
+++ b/packages/util/crypto/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-util-crypto",
   "description": "Zero-dependency browser-safe UUID and byte-encoding helpers",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/util/deque/package.json b/packages/util/deque/package.json
index e6312b1afb..37f6d8d589 100644
--- a/packages/util/deque/package.json
+++ b/packages/util/deque/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-deque",
   "description": "Zero-dependency circular deque with amortized constant-time end operations and bounded vacant storage",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/util/home-paths/package.json b/packages/util/home-paths/package.json
index be60eef526..020b85dce1 100644
--- a/packages/util/home-paths/package.json
+++ b/packages/util/home-paths/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-home-paths",
   "description": "Shared filesystem path helpers for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/util/http-proxy/package.json b/packages/util/http-proxy/package.json
index 815d2e3d85..87d0ddcc77 100644
--- a/packages/util/http-proxy/package.json
+++ b/packages/util/http-proxy/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-http-proxy",
   "description": "Process-wide outbound HTTP proxy policy for DeepSeek Harness: resolve it from the launch environment and install it as undici's global dispatcher",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/util/launch-environment/package.json b/packages/util/launch-environment/package.json
index 1e51d0a00a..36f1f4be95 100644
--- a/packages/util/launch-environment/package.json
+++ b/packages/util/launch-environment/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-launch-environment",
   "description": "Immutable DeepSeek Harness launch environment that records which layer supplied each value",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/util/native-command/package.json b/packages/util/native-command/package.json
index bac8bc22a8..31d5770858 100644
--- a/packages/util/native-command/package.json
+++ b/packages/util/native-command/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-native-command",
   "description": "Host-native command and path-opening utilities with shell-free execution, cancellation, desktop detection, and WSL handoff",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/util/output-retention/package.json b/packages/util/output-retention/package.json
index ff72365c3c..1de1a53bd5 100644
--- a/packages/util/output-retention/package.json
+++ b/packages/util/output-retention/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-output-retention",
   "description": "Zero-dependency bounded-retention primitive: ItemRetainer/TextRetainer + neutral notice helpers (what did we keep, what did we omit)",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/util/package-manifest/package.json b/packages/util/package-manifest/package.json
index fdb42e767c..85b8a0b1ff 100644
--- a/packages/util/package-manifest/package.json
+++ b/packages/util/package-manifest/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-package-manifest",
   "description": "Shared type declarations for package.json.dsh configuration fields",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/util/time/package.json b/packages/util/time/package.json
index 6c0746c340..a191aa8376 100644
--- a/packages/util/time/package.json
+++ b/packages/util/time/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-util-time",
   "description": "Zero-dependency time vocabulary shared by wire boundaries: canonicalClientTimeZone (IANA zone validation and canonicalization only, no formatting)",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/util/timeout/package.json b/packages/util/timeout/package.json
index 9dbeb4f71c..c1cbd2bae2 100644
--- a/packages/util/timeout/package.json
+++ b/packages/util/timeout/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-timeout",
   "description": "Zero-dependency timeout/deadline primitive: clampTimeout, deadline, timeoutOf, TimeoutReason (timing + classification only, no termination)",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/util/values/package.json b/packages/util/values/package.json
index 9018389817..b46eed22cc 100644
--- a/packages/util/values/package.json
+++ b/packages/util/values/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-util-values",
   "description": "Duplicate-install-safe value primitives for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/util/workspace-path/package.json b/packages/util/workspace-path/package.json
index 2a83879277..a8dca334e3 100644
--- a/packages/util/workspace-path/package.json
+++ b/packages/util/workspace-path/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-util-workspace-path",
   "description": "Browser-safe Workspace path and display helpers",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/web/tool-web/package.json b/packages/web/tool-web/package.json
index d95a2943c4..b3fe173fad 100644
--- a/packages/web/tool-web/package.json
+++ b/packages/web/tool-web/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-tool-web",
   "description": "Model-facing web tools (web_search, web_fetch) over the DeepSeek Harness web capability seam (ctx.web)",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/web/web-fetch-http/package.json b/packages/web/web-fetch-http/package.json
index d6d341279e..85ab4871d8 100644
--- a/packages/web/web-fetch-http/package.json
+++ b/packages/web/web-fetch-http/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-web-fetch-http",
   "description": "Anonymous public HTTP(S) fetch provider for the DeepSeek Harness web capability seam (ctx.web)",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/web/web-search-deepseek/package.json b/packages/web/web-search-deepseek/package.json
index f3263acc41..26eeb35a32 100644
--- a/packages/web/web-search-deepseek/package.json
+++ b/packages/web/web-search-deepseek/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-web-search-deepseek",
   "description": "DeepSeek-backed search provider (native web_search via the Anthropic-compatible API) for the DeepSeek Harness web capability seam (ctx.web)",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/web/web-search-exa/package.json b/packages/web/web-search-exa/package.json
index c4300449bc..85bedd66d4 100644
--- a/packages/web/web-search-exa/package.json
+++ b/packages/web/web-search-exa/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-web-search-exa",
   "description": "Exa-backed search provider for the DeepSeek Harness web capability seam (ctx.web)",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/web/web-search-perplexity/package.json b/packages/web/web-search-perplexity/package.json
index 67f36184e9..1e5cc82fc5 100644
--- a/packages/web/web-search-perplexity/package.json
+++ b/packages/web/web-search-perplexity/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-web-search-perplexity",
   "description": "Perplexity-backed search provider for the DeepSeek Harness web capability seam (ctx.web)",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/web/web/package.json b/packages/web/web/package.json
index 2a111c79c1..58fa29784a 100644
--- a/packages/web/web/package.json
+++ b/packages/web/web/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-web",
   "description": "Abstract web access capability seam (ctx.web) for the DeepSeek Harness — search/fetch provider registry, registration-order-independent selection, request/result vocabulary, and the WebError taxonomy",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/webhook/webhook-github/package.json b/packages/webhook/webhook-github/package.json
index 571995f31b..e94244a5b8 100644
--- a/packages/webhook/webhook-github/package.json
+++ b/packages/webhook/webhook-github/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-webhook-github",
   "description": "Signed GitHub HTTP webhook adapter for the DeepSeek Harness webhook runtime",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/webhook/webhook/package.json b/packages/webhook/webhook/package.json
index a279af4632..ca075c0b3d 100644
--- a/packages/webhook/webhook/package.json
+++ b/packages/webhook/webhook/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-webhook",
   "description": "Fire-and-forget webhook rule runtime that creates Workspace-backed DeepSeek Harness Sessions",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/workflow/tool-ralph/package.json b/packages/workflow/tool-ralph/package.json
index 1ac7810895..5f22369daa 100644
--- a/packages/workflow/tool-ralph/package.json
+++ b/packages/workflow/tool-ralph/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-tool-ralph",
   "description": "Model-facing fresh-agent Ralph loop over the workflow and subagent seams",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/workflow/tool-workflow/package.json b/packages/workflow/tool-workflow/package.json
index 0a49b53eb1..bf6b1e1c60 100644
--- a/packages/workflow/tool-workflow/package.json
+++ b/packages/workflow/tool-workflow/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-tool-workflow",
   "description": "Model-facing workflow tool: run a JavaScript orchestration script over ctx.workflowEngine",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/workflow/workflow-worker-thread/package.json b/packages/workflow/workflow-worker-thread/package.json
index d56e7bb1f8..51507b52c1 100644
--- a/packages/workflow/workflow-worker-thread/package.json
+++ b/packages/workflow/workflow-worker-thread/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-workflow-worker-thread",
   "description": "worker-thread workflow engine: executes model-written orchestration scripts off the host event loop, bridging agent() calls back to ctx.subagents",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/workflow/workflow/package.json b/packages/workflow/workflow/package.json
index 3b73206524..8b958f9ceb 100644
--- a/packages/workflow/workflow/package.json
+++ b/packages/workflow/workflow/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-workflow",
   "description": "Workflow capability seam: ctx.workflowEngine service, run vocabulary, and workflow/* events",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },
diff --git a/packages/workspace/workspace/package.json b/packages/workspace/workspace/package.json
index 46770c874f..35df2dc687 100644
--- a/packages/workspace/workspace/package.json
+++ b/packages/workspace/workspace/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-workspace",
   "description": "Workspace entity registry (ctx.workspaceRegistry): durable workspace records with validated session attachment over the domain data form for the DeepSeek Harness",
-  "version": "0.1.5-rc.1",
+  "version": "0.1.5-rc.2",
   "publishConfig": {
     "access": "public"
   },