# Tasks — Add @suaveplan/api-plugin-database

## 1. Spec authoring

- [x] 1.1 Read `../suaveplan/enterprise/api-plugin-database.md`
- [x] 1.2 Read `openspec/AGENTS.md` §§ 0a, 2a, 6a, 7, 12, 13, 14
- [x] 1.3 Draft `proposal.md` with `## Source mapping` (in-scope) AND `### Excluded from this migration`
- [x] 1.4 Draft `specs/api-plugin-database/spec.md` with `## ADDED Requirements` + `**Verified by:**`

## 2. Implementation

- [x] 2.1 `src/error-codes/error-codes.ts` — `DATABASE_CODES` via `defineCodes`, `DatabaseError` extending `SuaveplanError`
- [x] 2.2 `src/types/types.ts` — internal types (pool entry, waiter, plugin config)
- [x] 2.3 `src/config/config-schema.ts` — Zod boundary (`DatabasePluginOptionsSchema`, `DatabasePluginConfigSchema`)
- [x] 2.4 `src/otel/instruments.ts` — counters + histogram bundle
- [x] 2.5 `src/retry/retry.ts` — exponential backoff with optional jitter + abort
- [x] 2.6 `src/pool/pool.ts` — bounded pool of `SurrealAdapter` instances
- [x] 2.7 `src/migrations/lock.ts` — advisory lock with lease expiry + takeover
- [x] 2.8 `src/migrations/runner.ts` — wraps `@suaveplan/api-migrations` runner under the advisory lock
- [x] 2.9 `src/tenancy/tenancy.ts` — `provisionTenant` / `decommissionTenant` callables, all 3 strategies
- [x] 2.10 `src/routes/problem-json.ts` — RFC 7807 renderer
- [x] 2.11 `src/services/registry-augmentation.ts` — `ServiceRegistry.db` slot
- [x] 2.12 `src/plugin/plugin.ts` — `createDatabasePlugin` factory
- [x] 2.13 `src/index.ts` — explicit named re-exports + side-effect imports

## 3. Tests

- [x] 3.1 Unit tests for each module (`*.test.ts`)
- [x] 3.2 `src/api-plugin-database.spec-conformance.test.ts` — every error code thrown from a production path
- [x] 3.3 Real SurrealDB testcontainer integration test under `tests/integration/`
- [x] 3.4 OTel emission asserted against real in-memory `MeterProvider`

## 4. Documentation

- [x] 4.1 Sibling `.md` for every `.ts` implementation file (≥200 words, basic + advanced)
- [x] 4.2 `README.md` with `## Modules` linking every co-located `.md`

## 5. Pre-archive verification (the 5 gates)

- [x] 5.1 `bun run check` — Biome 0 errors
- [x] 5.2 `bunx turbo lint typecheck test --filter=@suaveplan/api-plugin-database` green
- [x] 5.3 `bunx turbo test:coverage --filter=@suaveplan/api-plugin-database` — 100/100/100/100
- [x] 5.4 `bun scripts/openspec-conformance.ts @suaveplan/api-plugin-database` — 0 errors
- [x] 5.5 `bunx turbo build --filter=@suaveplan/api-plugin-database` green

## 6. Archive

- [x] 6.1 Fold `specs/api-plugin-database/spec.md` into `openspec/specs/api-plugin-database/spec.md`
- [x] 6.2 Move `openspec/changes/add-api-plugin-database/` to `openspec/archive/2026-05-18-add-api-plugin-database/`