session.create treats a named sessionId as a blank Session to reuse while
the Host can verify it is still reusable: no turn has started, it belongs to
the requested directory, it is an unarchived member of the requested
Workspace, and no other owner writes it. The reused Session runs the
requested agentPreset or the configured default; its recorded preset is not
resolved, so a blank recorded under a preset that is no longer declared no
longer breaks New Session or startup restoration. A change is logged as
agent-preset/selected before the Agent is published. A candidate that is no
longer reusable stays unchanged and the Host creates a new Session, which
replaces the client's writer-held fallback.
The Web client restores a saved draft with its recorded preset and falls back
to the default when that preset is missing or fails to activate, passes the
creator entry's preset through creation instead of issuing a concurrent
select, and reloads the projections of a declined candidate so a stale blank
hint no longer hides a started conversation.
Related to #2566
* feat(workspace): stop a Session's running work before archiving it
Archiving was a pure visibility write, so a Session archived mid-turn kept
running out of sight. The Workspace registry now owns archive admission
through two Host events: `workspace/session-activity` reports what still
runs and refuses the plain archive as `workspace/session-active`;
`workspace/session-stop`, requested with `stopActivity`, stops that work the
way the user's own stop actions do before the archive write. The API Session
Controller reports and stops turns, subagent descendants, and owned jobs and
rejects any model step for an archived Session; the Schedule plugin reports
and deletes active reminders. The sidebar turns the refusal into a
stop-and-archive confirmation listing the Host's answer.
* test(workspace): pin the widened archive signature and prove child liveness by heartbeat
The Client inspect catalog spec pins archiveSession's new options
parameter, and the archive e2e reads the Bash child's liveness from a
heartbeat file instead of a pid: the Linux sandbox runs the tool in its own
PID namespace, so the pid it reports is not comparable from the test.
* test(workspace): cover the archive-admission providers and dialog to the per-file gate
Drop the provider's unused disposer and the dialog's unreachable confirm
guard, read reminders without a catch that no composition can reach, and
add the cases the coverage lane found missing: a stop without a jobs
registry, a looping lineage, a descendant whose projections reject, the
dialog's Escape guard and non-Error reason, and a family merged by another
provider.
* fix(workspace): write the archive before stopping, gate subagent lineage, and delete reminders under the schedule barriers
Review round on #4765. The registry now writes the archive set before it
dispatches `workspace/session-stop`, so the durable set already gates
every wake the stops induce; the controller's `agent/pre-step` gate also
blocks subagent descendants of an archived Session and contains each
cancel or kill on its own. The Schedule plugin's stop listener runs as a
management delete in the agent's transaction queue between the same two
persistence barriers the `schedule_delete` tool uses. The confirm dialog
selects singular or plural English lines and keys list rows by index.
Docs: archive-admission section with type-equiv blocks on the workspace
subsystem page, write-first order and residual windows in the READMEs
and the Agent Note, and the missing zh reminders sentence.
* test(web): scope the question composer's New Session wait to the Sessions tree
The wide sidebar's New Session button carries the same visible label as
a fresh session row, so the unscoped `getByText` either settled on the
button before the row existed or hit a strict-mode violation once the
row rendered first, which is how the snapshots lane failed on
ece68c2ab5. Waiting inside the Sessions tree names the row alone.
* fix(schedule): answer archive admission from the owned runtime's fold, not the projection registry
The `sessionProjections.snapshot` API is the Client projection view and
is not a Host read path (review on #4765). `ScheduleRuntime.activeRecords()`
folds the live log the way every drive does, and the archive-admission
listeners ask the owned runtime for that fold: a session without a live
agent or without an owned runtime has nothing armed to fire, so it reports
nothing and has nothing to stop. Covers the runtime-less agent, a fold that
turns unreadable at the persistence barrier, and the stopping/faulted
runtime answering nothing.
* refactor(subagent): report and stop subagent descendants from the Subagent runtime
The `subagent` family of archive admission moves out of the API Session
Controller into `dsh-subagent`, which records the lineage at delegation
and owns the descriptor (review on #4765): `SubagentRuntime` answers
`workspace/session-activity` with the running descendants, labelled from
each child's descriptor through a live Session observation, and
`workspace/session-stop` by cancelling each of them with the parent
cause. The controller keeps turns, owned jobs, and the lineage step gate,
and composes its provider through `ctx.plugin(SessionActivityProvider)`
with declared injections instead of a bare installer call. `dsh-workspace`
becomes an optional type-only peer of `dsh-subagent`.
* refactor(jobs): answer archive admission for owned jobs from the job registry seam
The `job` family moves out of the API Session Controller into `dsh-jobs`
(review on #4765): the seam's constructor installs the
`workspace/session-activity` and `workspace/session-stop` listeners for
every implementation through the abstract `list` and `kill` alone, so the
controller no longer knows the jobs vocabulary and keeps only the turn
family and the archived-lineage step gate. `dsh-workspace` becomes an
optional type-only peer of `dsh-jobs`.
* refactor(workspace): leave SessionActivityKindMap empty and let each provider merge its family
The workspace package no longer names any activity family (review on
#4765): `SessionActivityKindMap` is empty, and each provider merges its own
key from a module both its faces import — `turn` in the API Session
Controller's types, `job` in the job registry seam's view, `subagent` in
the Subagent runtime's control types, `schedule` in the Schedule plugin's
types. The confirm dialog imports those modules for its cases and keeps
the generic line for any other key; the registry and controller suites
merge test-owned families instead of borrowing the providers'.
* refactor(agent): report and stop the running turn from the Agent registry
The `turn` family moves out of the API Session Controller into `dsh-agent`
(review on #4765): the registry's constructor installs the
`workspace/session-activity` and `workspace/session-stop` listeners for
every Agent it publishes, answering with its own lookup and cancelling the
turn with the user cause, and merges the `turn` key from its client-safe
types. The controller keeps only the archived-lineage step gate, renamed
`ArchivedSessionGate`. `dsh-workspace` becomes an optional type-only peer
of `dsh-agent`; the workspace package depends on none of the providers,
so the edge stays acyclic.
Since #3127 a foreground Bash command is a registered job from its start,
so the archive dialog lists it beside the turn; the e2e and its ARIA golden
expect that row, and the capture keeps the running job by design.
Merge master 01d96c168a84227374e3aa741e94ddfbb498e27e, observed when
this integration started, after the published 6de3db41 checkpoint. Keep
master's author history and preserve the release writer, adjacent
migrations, historical Session generations, and parent-owned catalogs.
Combine blank Session writer acquisition and superseded-startup
cancellation with the release branch's projection refresh and panel
preservation. A startup acquisition may finish after a later navigation,
but must not retain a stale main Session or reveal its Conversation.
Update the existing regression's retention expectation while preserving
its panel and active-navigation assertions.
Keep the release catalog loading, known-leaf, and parent availability
behavior alongside master's completed-turn status and aligned sidebar
icons. Regenerate the config locations and pair the combined README
contracts. Preserve upstream's Linux process-state assertion repair.
Assistant prose that references a workspace-contained local media path
(e.g. ``) now renders through a same-origin
`GET|HEAD /api/file?path=` route instead of inert alt text.
- ui-primitives: MarkdownText gains a settled-only MarkdownPathImages
vocabulary gate (same posture as file mentions); no vocabulary means
byte-identical output.
- ui-chat: AssistantMarkdown supplies a page-stable rewrite vocabulary
for absolute POSIX paths (local-path-media.ts).
- session-controller: SessionMediaReferences plugin contribution mounts
the route on the authenticated connection.fetch channel; per-request
policy = workspace-root containment after realpath, regular file,
allowlisted media extension (images additionally signature-checked),
range/HEAD streaming, private no-store + nosniff, fail-closed statuses.
- Agent Note added (feature/2026-09-07-session-prose-local-media-display).
Closes#3662.
Review asked for the observation wire and its client service to leave
session-controller: a job should reach the Host only through its own
Remote namespace, and the session plugin's apply had to materialize
{ $stream, session } for a service that is not session state.
@deepseek-ai/dsh-api-job-controller now owns the Host JobController
(job.observe over ctx.jobs, requiring the agent and job registries) and
the client ClientJobOutput (ctx.jobOutput) over ClientJobOutputModel,
resolving both Remote faces in its own apply. The remotes assembly
mounts the job namespace; ui-jobs injects the new package; the wire
types drop their Session prefix and spell the status union out so the
client face pulls no Host declaration merges into browser programs.
session-controller keeps the jobsBySession roster and loses observe-job,
job-output, and the observe cadence config.
ui-chat's slots and snapshot-builder import CommandNode and friends from
the declaring package: the typert analyzer's cross-package rule trips on
the snapshot re-export as soon as another client face joins the root
Client program (the new controller does), which is why this branch
carried the change before. JobPumpSource documents why it is an offset
snapshot reader rather than a Node.js Readable.
_Kerman