73 lines
2.6 KiB
Markdown
73 lines
2.6 KiB
Markdown
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# dsh-agent
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Agent interface, registry, and `agent/*` event vocabulary. Every plugin (UI,
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hooks, orchestrators) programs against the `Agent` handle defined here — it has
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zero loop dependency, so the loop is swappable.
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## Service: `AgentRegistry` (ctx key: `agents`)
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Tracks live agents so UI, hook, and orchestrator plugins can find them without
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importing the concrete loop package.
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### Public API
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- `ctx.agents.register(agent: Agent): () => void`
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Register a live agent. Disposed with the calling fiber.
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- `ctx.agents.get(id: string): Agent | undefined`
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- `ctx.agents.list(): Agent[]`
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### Events
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The full `agent/*` event taxonomy is declared via declaration merging in
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`dsh-agent` (not `dsh-agent-loop`), so plugins depend only on this package.
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#### Lifecycle (emit)
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- `agent/created`, `agent/disposed` — registration/deregistration
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- `agent/status` — idle / running / disposed transition
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- `agent/queued` — message entered inbox (source-resolved, steering flag)
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#### Turn/step boundaries (emit)
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- `agent/turn-start`, `agent/turn-end` (carries `TurnEndReason`)
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- `agent/step-start`, `agent/step-end`
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#### Interception seams (waterfall)
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- `agent/request` — mutate `GenerateOptions` before the model call (hooks,
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compaction, model switching, tool filtering)
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- `agent/step-result` — post-process the assembled assistant message before tool
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dispatch (validates what the log records)
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- `agent/turn-continuation` — override the continue/stop decision
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(force-continue /loop, force-stop budget guard)
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#### Streaming + tool (emit)
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- `agent/stream-chunk` — raw chunk from the model (token-level UI/log feed)
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- `agent/steering` — steering content injected mid-turn
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- `agent/error` — step/turn error
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### Agent interface (`types.ts`)
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The handle every plugin programs against:
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- `agent.send(content, options?)` — queue a message; starts a turn when idle
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- `agent.steer(content, options?)` — steer a running turn (inject between steps);
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behaves like `send` when idle
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- `agent.inject(content, options?)` — inject in-session context without triggering
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a turn (context/message event); next request sees it
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- `agent.abort(reason?)` — abort the in-flight step
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- `agent.session`, `agent.status`, `agent.options`, `agent.id`
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### Extension points
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- Agent creation: `AgentLoop.create()` is the concrete implementation (in
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`dsh-agent-loop`). Replace the loop by implementing `Agent` and registering
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via `ctx.agents.register()`.
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- Event listeners: all `agent/*` events are declared here — no dependency on the
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loop package needed.
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### What is NOT here (TODO)
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- **Sub-agent spawn/fork** — seam on `AgentLoop.create()`, semantics deferred.
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