Yichen Jiang
4a79310339
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.
shell/ — bash capability family
English | 中文
The capability family spans the canonical executor seam, its implementations, the shared shell environment, and the model-facing tools. All are product packages.
| Package | Role | ctx key |
|---|---|---|
shell/ |
Defines the executor contract shared by Service Providers and Consumers. | ctx.shell |
bash-local/ |
Executes commands through the local subprocess service. |
(registers ctx.shell) |
bash-sandbox/ |
Applies the configured sandbox backend before local execution. |
(registers ctx.shell) |
pwsh-local/ |
Executes PowerShell commands with Windows-specific process behavior. | (registers ctx.shell) |
shell-env/ |
Provides the managed DSH_* environment shared by shell tools. |
ctx.shellEnv |
tool-bash/ |
Exposes Bash execution and background-job integration to the model. | (registers on ctx.tools) |
tool-pwsh/ |
Exposes PowerShell execution to the model. | (registers on ctx.tools) |
A leaf cordis.yml selects one executor implementation and the model-facing tools it needs. A sandboxed composition also selects a ctx.sandbox provider; the ACP example shows one complete wiring.
The subsystem reference — request/spec vocabulary, results, background processes, the service, and events — is docs/subsystems/shell.md.