beadboard/package.json
Viktor Barzin a7b4f7ba32 [beadboard] Add agent-dispatch and agent-status API routes
## Context

The Dispatch-to-Agent button in the right-panel (previous commit) calls
two endpoints that did not yet exist server-side:

- `POST /api/agent-dispatch` — resolve the bead via the same Dolt pool
  the existing `/api/beads/read` route uses, build a prompt from it, and
  forward to `claude-agent-service`'s `/execute` endpoint with a bearer
  token. This is the server-side trust boundary: the bearer token lives
  in env (never in the browser), and the bead is re-read from Dolt
  (never trusted from the client payload) so a malicious client cannot
  inject a prompt.

- `GET /api/agent-status` — proxy `claude-agent-service`'s `/health`
  endpoint (which already returns `{status, busy}`), with a 2 s in-
  memory cache so 5 s UI polls across multiple open tabs don't hammer
  the service.

The claude-agent-service serialises jobs behind an `asyncio.Lock` — a
second `/execute` while one is running returns HTTP 409 "Agent is busy".
We surface that 409 through to the browser unchanged so the UI can show
the right toast/status line without re-mapping status codes.

```
client ──► /api/agent-dispatch ──► claude-agent-service /execute
             │                        (asyncio.Lock guards)
             └─► reads bead from Dolt pool (same path as /api/beads/read)
             └─► buildDispatchPrompt(bead)
             └─► POST {prompt, agent, budget, timeout} + Bearer token

client ──► /api/agent-status (2s cache) ──► /health  ──► {busy: bool}
```

## This change

### `src/app/api/agent-dispatch/route.ts`

- `POST {taskId: string}` handler.
- Validates JSON body and non-empty taskId (→ 400).
- Early 500 if `CLAUDE_AGENT_SERVICE_URL` or `CLAUDE_AGENT_BEARER_TOKEN`
  is missing — fail fast, fail loud.
- Resolves the bead via `readIssuesFromDisk({preferBd: true})`, which
  uses the existing Dolt client (and falls back to `issues.jsonl`).
  Filtering by id after is acceptable at BeadBoard's scale (~hundreds
  of beads) and avoids introducing a new single-bead query path.
- 400 when the bead is missing, or when `acceptance_criteria?.trim()` is
  empty — defense in depth alongside the UI disable. The button should
  already hide in these cases, but a curl'd POST must still be rejected.
- Forwards to `${CLAUDE_AGENT_SERVICE_URL}/execute` with agent
  `beads-task-runner`, max_budget_usd 5, timeout_seconds 900 (matches
  the values in the task spec).
- Passes through 409 verbatim. Other upstream errors collapse to 502.

### `src/app/api/agent-status/route.ts`

- `GET` handler, module-level snapshot cache with 2 s TTL to avoid
  hammering `/health`.
- In-flight de-dup: a single pending `fetchRemoteStatus()` is shared
  across concurrent requests so we only hit the upstream once per
  window even under bursty load.
- When `CLAUDE_AGENT_SERVICE_URL` is unset, returns `{busy: false}` and
  skips the fetch entirely — this is how the dev server boots before
  the service env is configured.
- HTTP 503 from upstream is interpreted as `busy: true` (future-proofing
  in case the service swaps 409 for 503 on overload).
- Any network error degrades gracefully to `{busy: false}` — the 409
  path on `/api/agent-dispatch` is the authoritative gate.

### Test coverage

- `tests/api/agent-dispatch-route.test.ts` (3 cases): invalid JSON body,
  missing taskId, missing env returns 500.
- `tests/api/agent-status-route.test.ts` (3 cases): unset service URL
  returns `{busy: false}` without a fetch, `/health busy:true` proxies
  through, HTTP 503 maps to busy=true. Uses a `globalThis.fetch` stub
  and cache-busting query params on dynamic import so each case starts
  from a fresh module snapshot.

## What is NOT in this change

- End-to-end happy-path coverage (bead loads, fetch returns 200, route
  yields job_id) would require mocking `readIssuesFromDisk` — that's a
  bigger refactor than this commit warrants. Live integration happens
  once the pipeline is wired.
- No retry/backoff on upstream failures. 502 passes through; the client
  decides whether to retry.
- No auth on the routes themselves — they inherit the Next.js app's
  session model (same as all other `/api/*` routes today).

## Test Plan

### Automated

```
$ node --import tsx --test tests/api/agent-dispatch-route.test.ts \
    tests/api/agent-status-route.test.ts
# tests 6 pass 6 fail 0 duration_ms 1560
```

All six route cases pass. Typecheck output shows only the pre-existing
`OrchestratorChatMessage` gap in `left-panel.tsx`. Lint output is
unchanged from `main` (1 pre-existing `no-require-imports` error in
`src/lib/bb-pi-bootstrap.ts`).

### Manual Verification

1. Export env:
   ```
   export CLAUDE_AGENT_SERVICE_URL=http://claude-agent-service.claude-agent.svc.cluster.local:8080
   export CLAUDE_AGENT_BEARER_TOKEN=$(vault kv get -field=api_bearer_token secret/claude-agent-service)
   ```
2. `npm run dev`
3. `curl -s http://localhost:3000/api/agent-status` → `{"busy":false}`
   (if the service is reachable; `{"busy":true}` if a job is running).
4. `curl -X POST http://localhost:3000/api/agent-dispatch \
       -H 'content-type: application/json' \
       -d '{"taskId":"beadboard-xyz"}'`
   - 400 if bead does not exist or lacks acceptance criteria.
   - 200 `{"job_id":"..."}` on success.
   - 409 `{"error":"Agent is busy"}` when an agent is already running.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-18 14:07:21 +00:00

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{
"name": "beadboard",
"version": "0.1.0",
"private": true,
"license": "MIT",
"bin": {
"beadboard": "bin/beadboard.js",
"bb": "bin/beadboard.js"
},
"scripts": {
"dev": "next dev",
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"lint": "eslint .",
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"test": "node --test tests/bootstrap.test.mjs && node --import tsx --test tests/pr14-critical-bugs.test.ts && node --import tsx --test tests/components/shared/base-card.test.tsx && node --import tsx --test tests/components/shared/agent-avatar.test.tsx && node --import tsx --test tests/components/sessions/sessions-header.test.ts && node --import tsx --test tests/components/sessions/agent-station-logic.test.ts && node --import tsx --test tests/lib/parser.test.ts && node --import tsx --test tests/lib/pathing.test.ts && node --import tsx --test tests/components/shared/left-panel.test.tsx && node --import tsx --test tests/components/shared/top-bar.test.tsx && node --import tsx --test tests/components/shared/mobile-nav.test.tsx && node --import tsx --test tests/components/swarm/swarm-card.test.tsx && node --import tsx --test tests/hooks/url-state-integration.test.ts && node --import tsx --test tests/hooks/use-graph-analysis.test.ts && node --import tsx --test tests/components/graph/smart-dag.test.tsx && node --import tsx --test tests/components/unified-shell.test.tsx && node --import tsx --test tests/components/blocked-triage-modal.test.tsx && node --import tsx --test tests/components/graph/graph-node-labels.test.tsx && node --import tsx --test tests/components/graph/graph-node-assign.test.tsx && node --import tsx --test tests/components/graph/graph-node-conversation.test.tsx && node --import tsx --test tests/lib/coord-schema.test.ts && node --import tsx --test tests/lib/install-manifest.test.ts && node --import tsx --test tests/lib/runtime-manager.test.ts && node --import tsx --test tests/lib/coord-events.test.ts && node --import tsx --test tests/api/coord-events-route.test.ts && node --import tsx --test tests/lib/coord-projections-inbox.test.ts && node --import tsx --test tests/lib/coord-projections-reservations.test.ts && node --import tsx --test tests/components/sessions/conversation-drawer-coord.test.tsx && node --import tsx --test tests/scripts/beadboard-launcher.test.ts && node --import tsx --test tests/scripts/beadboard-launcher-runtime.test.ts && node --import tsx --test tests/scripts/beadboard-launcher-status-text.test.ts && node --import tsx --test tests/scripts/install-wrappers-contract.test.ts && node --import tsx --test tests/scripts/install-sh-smoke.test.ts && node --import tsx --test tests/scripts/install-legacy-migration.test.ts && node --import tsx --test tests/scripts/installer-ci-contract.test.ts && node --import tsx --test tests/docs/installer-quickstart-contract.test.ts && node --import tsx --test tests/docs/runtime-manager-adr-contract.test.ts && node --import tsx --test tests/cli/beadboard-cli.test.ts && node --import tsx --test tests/cli/beadboard-bin-routing.test.ts && node --import tsx --test tests/cli/beadboard-help-output.test.ts && node --import tsx --test tests/skills/beadboard-driver/resolve-bb.test.ts && node --import tsx --test tests/skills/beadboard-driver/session-preflight.test.ts && node --import tsx --test tests/skills/beadboard-driver/generate-agent-name.test.ts && node --import tsx --test tests/skills/beadboard-driver/readiness-report.test.ts && node --import tsx --test tests/skills/beadboard-driver/skill-local-runner.test.ts && node --import tsx --test tests/skills/beadboard-driver/diagnose-env.test.ts && node --import tsx --test tests/skills/beadboard-driver/heal-common-issues.test.ts && node --import tsx --test tests/lib/epic-graph.test.ts && node --import tsx --test tests/components/shared/left-panel-filtering.test.ts && node --import tsx --test tests/hooks/use-beads-subscription-contract.test.ts && node --import tsx --test tests/components/graph/dependency-graph-hide-closed-contract.test.ts && node --import tsx --test tests/components/shared/unified-shell-hide-closed-contract.test.ts && node --import tsx --test tests/lib/agent-registry.test.ts && node --import tsx --test tests/api/agents-mail.test.ts && node --import tsx --test tests/skills/beadboard-driver/bb-mail-shim.test.ts && node --import tsx --test tests/skills/beadboard-driver/ensure-bb-mail-configured.test.ts && node --import tsx --test tests/lib/dispatch-prompt.test.ts && node --import tsx --test tests/components/shared/dispatch-button.test.tsx && node --import tsx --test tests/api/agent-dispatch-route.test.ts && node --import tsx --test tests/api/agent-status-route.test.ts && node skills/beadboard-driver/tests/run-tests.mjs",
"video": "remotion preview src/video/index.ts",
"video:render": "remotion render src/video/index.ts Main out/video.mp4",
"video:thumbnail": "remotion still src/video/index.ts Main out/thumbnail.png --frame=60"
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