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

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+# Tasks — `@suaveplan/api-auth`
+
+> 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 §2.3 (auth two contracts), §6 step 3 (auth in pipeline + CSRF), §7 step 3 (security schemes for OpenAPI)
+- [x] 1.2 Read `openspec/specs/api-auth/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-auth/spec.md`
+- [x] 1.7 `**Verified by:**` line on every requirement
+
+## 2. Implementation
+
+- [x] 2.1 Scaffold `packages/api-stack/api/api-auth/` (`"version": "0.1.0"`, `"sideEffects": false`, deps: `@suaveplan/api-types`, `@suaveplan/error`, `@suaveplan/types`, `tslib`, `zod`)
+- [x] 2.2 `src/resolver/` — `SessionResolver` interface
+- [x] 2.3 `src/chain/` — `SessionResolverChain` runtime
+- [x] 2.4 `src/security-scheme/` — `SecuritySchemeContribution` + Zod schema (`import z from "zod"`)
+- [x] 2.5 `src/csrf-policy/` — `CsrfPolicy` helper
+- [x] 2.6 `src/session-adapter/` — composite `AuthAdapter`
+- [x] 2.7 `src/capability-id/` — `AUTH_SESSION_CAPABILITY_ID` + assignability assertion
+- [x] 2.8 `src/error-codes/` — `AUTH_CODES`
+- [x] 2.9 `src/testing/` — `runAuthSessionConformance(factory)`
+- [x] 2.10 `src/index.ts` — explicit named re-exports
+- [x] 2.11 `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 chain ordering (Fisher-Yates of null-returning resolvers + one non-null wins)
+- [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-auth` — green (55/55 tests)
+- [x] 5.3 `bunx turbo test:coverage --filter=@suaveplan/api-auth` — 100/100/100/100
+- [x] 5.4 `bun scripts/openspec-conformance.ts packages/api-stack/api/api-auth` — exit 0
+- [x] 5.5 `bunx turbo build --filter=@suaveplan/api-auth` — green
+
+## 6. Pre-archive 7-row checklist
+
+- [x] 6.1 Generics on `SessionResolver<P extends Principal>`; `expectTypeOf` assertions
+- [x] 6.2 Zod wired at security-scheme boundary
+- [x] 6.3 Every `AUTH_CODES` entry thrown
+- [x] 6.4 Chain fail-closed-on-throw strict-mode tested (default fail-closed; opt-in continue-on-throw)
+- [x] 6.5 OTel — N/A (adapters emit)
+- [x] 6.6 Lifecycle dedup — `dispose()` 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-auth/`
+- [x] 7.3 Tick umbrella `1.7`
+- [x] 7.4 Refresh `MANIFEST.md`