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openspec/changes/enterprise-api-plugin-rate-limit/tasks.md

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+# Tasks: enterprise-api-plugin-rate-limit
+
+**Change ID**: enterprise-api-plugin-rate-limit
+**Package**: `@suaveplan/api-plugin-rate-limit`
+**Target path**: `api/data/api-plugin-rate-limit`
+**Prerequisite packages on Verdaccio**: `@suaveplan/api`, `@suaveplan/api-shared`, `@suaveplan/api-plugin-auth`, `@suaveplan/rate-limiter`, `@suaveplan/events`, `@suaveplan/error`
+
+---
+
+## 0. Pre-flight (non-negotiable)
+
+- [ ] 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)
+- [ ] 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.
+- [ ] 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. Scaffold + types + errors + events
+
+- [ ] Create directory; `package.json` v0.0.0; standard tooling.
+- [ ] Types: `RouteRateLimitOptions`, `RateLimitResult`, `RateLimitState`, `RateLimitPluginConfig` (Zod).
+- [ ] Errors: 3-code union + registration. Test + doc.
+- [ ] Events: `RateLimitEventMap` (rate-limit:exceeded, rate-limit:reset).
+
+---
+
+## 2. RateLimiterService
+
+- [ ] `middleware(options)` — factory returning Hono `MiddlewareHandler`; extracts key via `keyExtractor`; calls `check`; on limit exceeded emits `rate-limit:exceeded`, returns 429 with `Retry-After` header.
+- [ ] `check(key, limit, windowMs)` — delegates to `@suaveplan/rate-limiter`.
+- [ ] `reset(key)` — admin; emits `rate-limit:reset`.
+- [ ] `getState(key)` — returns current window count + remaining.
+- [ ] OTel: `rate_limit.checks_total`, `rate_limit.exceeded_total` counters.
+- [ ] `.test.ts` + `.md`.
+
+---
+
+## 3. Middleware factory
+
+- [ ] `createRateLimitMiddleware(service, options)` — convenience wrapper.
+- [ ] Per-tenant override: if `c.get('tenantId')` present, look up tenant-specific limit override from config.
+- [ ] `.test.ts` + `.md`.
+
+---
+
+## 4. Admin routes
+
+- [ ] `GET /admin/rate-limits/:key` — `requireAuth` + `requireRole("ADMIN")`.
+- [ ] `DELETE /admin/rate-limits/:key` — reset; `requireAuth` + `requireRole("ADMIN")`.
+- [ ] Route `.test.ts` + `.md`.
+
+---
+
+## 5. Plugin factory + integration tests + publish
+
+- [ ] `createRateLimitPlugin`: `definePlugin`, `dependencies: ["auth"]`.
+- [ ] `onInit`: instantiate `RateLimiterService` with config; register as `"rate-limiter"` service.
+- [ ] Integration: middleware applied → 5 requests pass → 6th returns 429 → reset → pass again.
+- [ ] `bunx turbo lint typecheck test --filter=@suaveplan/api-plugin-rate-limit` — green; 100% coverage.
+- [ ] `bun scripts/publish.ts --package @suaveplan/api-plugin-rate-limit`.
+- [ ] Archive → `openspec/archive/2026-04-24-enterprise-api-plugin-rate-limit/`.