fix(tasks): address task API review feedback

The public kill result used the awkward phrase already-terminal. Rename it to already-finished and keep the model-facing response aligned; not-alive would be inaccurate because a force-failed registry record can still correspond to orphaned producer work.

Task kinds were open strings even though producer namespaces are an extension point. Add the merge-extensible TaskKindMap and derived TaskKind, cover consumer declarations in task and bundle tests, and retain the runtime non-empty check for untyped callers.

With exactOptionalPropertyTypes, owner?: Agent | undefined allowed an explicit undefined value that no caller needs. Tighten the property to owner?: Agent so unowned work is expressed by omitting it.

Record the requested task-service/backend split as a follow-up, using a systemd-backed runtime as a concrete candidate without guessing its durability and ownership contract in this PR. Regenerate the type and Cordis catalogs so public docs match the declarations.
This commit is contained in:
Tianyi Cui
2026-07-15 21:45:30 +08:00
parent f4bd2405cc
commit b06ae91fa8
12 changed files with 84 additions and 36 deletions
+2 -1
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@@ -1,6 +1,6 @@
# @deepseek-ai/dsh-tasks
The process-local background task registry (`ctx.tasks`). It gives long-running producers shared ids, owner isolation, reads, cancellation, waiting, notices, and cleanup. The service is concrete; a durable backend can introduce an interface when its different lifecycle is specified.
The process-local background task registry (`ctx.tasks`). It gives long-running producers shared ids, owner isolation, reads, cancellation, waiting, notices, and cleanup. Producer plugins extend `TaskKindMap` with their opaque id namespace.
## Service API
@@ -29,6 +29,7 @@ Indirectly, through producer plugins and [`dsh-tool-tasks`](../tool-tasks/README
## Known Limitations and Deferred Work
- **Tasks are process-local** — durable or cross-restart execution needs a separate lifecycle.
- **The service and implementation are not split** — a second backend must define the lifecycle that shapes that boundary.
- **Stream output has one consuming cursor** — independent observers need a cursor or snapshot API.
- **Foreground work cannot be promoted** — producers choose foreground or background before starting.
- **A silently ineffective cancel can stall teardown** — only an explicit throw can be force-failed safely.