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openspec/archive/2026-05-25-api-ws/tasks.md

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+# Tasks — `@suaveplan/api-ws`
+
+> Every checkbox MUST reflect work actually done in this change.
+
+## 0. Pre-flight (non-negotiable)
+
+- [x] 0.1 Confirm clean working tree (`git status` reports nothing) and no in-flight worktrees with uncommitted work (`git worktree list` then `git status` in each)
+- [x] 0.2 If any worktrees exist under `.claude/worktrees/`, account for each one: still-active agent, work-pending-merge, or stale-and-prune. Stale worktrees MUST be removed (`git worktree remove`) before opening a new one — code that has been lost twice on main is the failure mode this guards against.
+- [x] 0.3 Confirm the package set in `MANIFEST.md` matches `find packages -maxdepth 3 -name package.json` count. Drift here means a prior change archived without regenerating the manifest.
+
+## 1. Spec authoring
+
+- [x] 1.1 Read design doc §11.1 (lifecycle), §11.2 (bus), §11.3 (multi-host), §11.4 (backpressure/heartbeat), §11.5 (reconnect), §11.8 (worker tier)
+- [x] 1.2 Read `openspec/specs/api-ws/spec.md` (does not exist yet)
+- [x] 1.3 Read `openspec/AGENTS.md` Sections 13, 14
+- [x] 1.4 Draft `proposal.md`
+- [x] 1.5 Source-mapping table
+- [x] 1.6 Draft `specs/api-ws/spec.md`
+- [x] 1.7 `**Verified by:**` line on every requirement
+
+## 2. Implementation
+
+- [x] 2.1 Scaffold `packages/api/api-ws/` (`"version": "0.1.0"`, `"sideEffects": false`, deps: `@suaveplan/api-types`, `@suaveplan/error`, `@suaveplan/types`, `zod`)
+- [x] 2.2 `src/connection/` — `WsConnection` interface
+- [x] 2.3 `src/connection-registry/` — `ConnectionRegistry`
+- [x] 2.4 `src/subscription-bus/` — `SubscriptionBus` + cross-tenant gate
+- [x] 2.5 `src/broker/` — `WsBroker`
+- [x] 2.6 `src/envelope/` — Zod schema (always `import z from "zod"`)
+- [x] 2.7 `src/backpressure/` — `BackpressurePolicy` (constants + helper)
+- [x] 2.8 `src/heartbeat/` — `HeartbeatPolicy`
+- [x] 2.9 `src/reconnect-token/` — `ReconnectToken` shape + HMAC verify helper
+- [x] 2.10 `src/capability-id/` — augmentation file adding `"ws"` + `"ws.broadcast-cross-tenant"`
+- [x] 2.11 `src/error-codes/` — `WS_CODES`
+- [x] 2.12 `src/testing/` — `runWsEngineConformance(factory)`
+- [x] 2.13 `src/index.ts` — explicit named re-exports
+- [x] 2.14 `package.json` `exports` per subpath
+
+## 3. Tests
+
+- [x] 3.1 Unit tests per feature
+- [x] 3.2 Spec-conformance type tests
+- [x] 3.3 Property test on connection-registry multi-index lookup
+- [x] 3.4 Every `it(...)` carries `{ timeout: 5000 }`
+
+## 4. Documentation
+
+- [x] 4.1 Sibling `.md` for every implementation `.ts`
+- [x] 4.2 `README.md` linking every `.md`
+- [x] 4.3 No CLAUDE.md update
+
+## 5. Pre-archive verification
+
+- [x] 5.1 `bun run check` — 0/0/0
+- [x] 5.2 `bunx turbo lint typecheck test --filter=@suaveplan/api-ws` — green
+- [x] 5.3 `bunx turbo test:coverage --filter=@suaveplan/api-ws` — 100/100/100/100
+- [x] 5.4 `bun scripts/openspec-conformance.ts @suaveplan/api-ws` — exit 0
+- [x] 5.5 `bunx turbo build --filter=@suaveplan/api-ws` — green
+
+## 6. Pre-archive 7-row checklist
+
+- [x] 6.1 Generics on `SubscriptionBus<Payload>`; `expectTypeOf` on every literal-type claim
+- [x] 6.2 Zod wired at the envelope boundary
+- [x] 6.3 Every `WS_CODES` entry thrown
+- [x] 6.4 Backpressure / heartbeat strict-mode behaviors tested on / off
+- [x] 6.5 OTel — N/A (engines emit)
+- [x] 6.6 Lifecycle dedup — connection registration is idempotent; tested
+- [x] 6.7 No retroactive tick
+
+## 7. Archive
+
+- [x] 7.1 Fold spec delta
+- [x] 7.2 Move to `openspec/archive/<yyyy-mm-dd>-api-ws/`
+- [x] 7.3 Tick umbrella `1.5`
+- [x] 7.4 Refresh `MANIFEST.md`