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.
Absorbs the repo-wide no-op invariant companion removal (ui-jobs loses its
placeholder companion, export, and devDep), the 0.1.2-alpha.3 release bump,
and the tool-subagent-report package retirement; regenerates the client slot
catalog for the shifted contract line numbers.
packages/activity/* and packages/api/activity-controller are removed. The
web roster is the session control stream's jobs frames alone; per-job output
observation rides session.observeJob and the client ctx.jobOutput service.
ui-activity returns to its upstream name ui-jobs and renders the single
roster — a row is expandable exactly when its job declared a record
(outputTotal present). Composition rows, dependency-policy exemptions,
tsconfig aliases and references, generated catalogs, and the docs pages
follow; the activity subsystem page is deleted and the jobs page gains the
record contract. The superseding Agent Note records the decision and points
the three prior notes at it.
New turnOutline projection unit serving every started turn's number,
turn/start seq, and bounded first-prompt preview through the
session-projection seam, mounted in the web-app bundle for the chat
turn rail. Entries stay strictly increasing; previews mirror the rail's
loaded-turn preview budget.
Apply the rename pass to READMEs and docs the master sweep rewrote, fix
PTC mode anchors and the renamed-note links in the spill READMEs, and
regenerate the doc graphs.
Rename the tool-presentation transport from code-mode to ptc everywhere
that is not written into session logs: the mode config value becomes 'ptc',
the preset directory/id becomes ptc, the demo becomes demo:ptc, the
dispatch waterfall becomes tools/ptc-dispatch-log (types PtcDispatch*), the
prompt rule becomes tools:ptc-only, source/test files become ptc.ts etc.,
and prose says PTC mode / PTC 模式. The session-persistent vocabulary
(durable events tool/code-dispatch*, logged plugin name tools-code-mode,
sub-call id segment :code:) intentionally stays and moves in the stacked
persistence PR, which is blocked until the SESSION_FORMAT_VERSION v0→v1
migration lands with it. run_code, its code parameter, CodeSdkLanguage,
CodeRunFailedError, the dsh-code-runtime family, third-party codex names,
and frozen archived notes keep their names.
Browser acceptance of the activity panel surfaced the product problem: a
background bash registers in both planes, so the header grew two near-
identical popovers — "background jobs" with lifecycle and duration,
"activities" with live output — listing the same work twice.
The service planes stay orthogonal (jobs: model-visible control with a
consuming read cursor; activities: transient non-consuming observation).
The join happens per row in the UI projection instead:
- dsh-client-ui-activity renders the single merged "tasks" list. Each
jobsBySession row joins the activity carrying its correlation.jobId —
the job supplies identity, lifecycle (stopping exists only there),
duration, and the model-visible detail; the activity supplies the
expandable live-output panel. Standalone activities (workflow runs)
keep their own rows; without the activity registry, job rows still
render and the control degrades to the old job list exactly.
- dsh-client-ui-jobs is deleted (pre-release, no shim); the merged entry
takes its slot order. The job locale namespace folds into activity.
- User-facing copy says "task" (任务): N tasks running / N 个任务进行中.
- Hierarchy: live rows first as two lines (label over kind badge and
status, ticking duration), a Finished divider when both sections
exist, settled rows compacted to one de-emphasized line, and the
output panel hangs behind a spine under its row.
Deliberately not joined: subagent rows stay bare (the subagent panel is
their surface) and foreground commands stay in tool cards.
Both web e2e scenarios now assert one Tasks list; the background-job
scenario's row gained a live-output panel, proving the join end to end.
Agent Note: 2026-08-25-unified-task-list.
Add the activity capability seam: ctx.activities is a pure observation
plane where long-running work (background bash/pwsh, workflow runs) opens a
handle, appends transient output into a byte-offset ring buffer, and settles
exactly once. Nothing model-visible changes: reads are non-consuming and
lossy-by-design (absolute UTF-8 offsets survive eviction and report gaps),
correlation carries {callId, jobId}, and visibility is owner-fenced like jobs.
The seam is strictly optional. Producers tap it through ctx.get('activities')
and contain every observation failure, so an unregistered or broken registry
never affects the underlying job (proven by broken-registry tests).
Ship the full path in one change:
- @deepseek-ai/dsh-activity: Service Definition, pumpActivityOutput pull
substrate, invariant companion; dsh-activity-local: ring-buffer provider
with retention config and owner cleanup.
- shell: ShellProcess.observed exposes non-consuming stdout/stderr readers;
tool-bash/tool-pwsh mirror background jobs into activities.
- tool-workflow: phase/log/agent lines mirrored as a workflow activity.
- api-activity-controller: Typert Remote control (roster baseline+buckets)
and observe (opened/output/status frames, coalesced and byte-capped)
streams plus the client feed service with reference-counted observation.
- ui-activity: session-header action rendering live output through
TerminalBlock, which now shows output while a command is still running.
Docs: activity subsystem page, architecture row, regenerated catalogs, and
the Agent Note (2026-08-24-activity-observation-seam), all bilingual. A
keyless web e2e replays a real run_in_background stream to ARIA goldens.
Yichen Jiang