# Tasks — storage-cdn

> Every checkbox MUST reflect work actually done in this change.

## 1. Spec authoring

- [ ] 1.1 Read `openspec/specs/storage/spec.md` and confirm capability boundary
- [ ] 1.2 Read `openspec/AGENTS.md` §0c, §13, §14
- [ ] 1.3 Read sibling change `openspec/changes/add-storage-http/` for the family conventions
- [ ] 1.4 Draft `proposal.md`, `design.md`, `specs/storage-cdn/spec.md`, `tasks.md`
- [ ] 1.5 Numbered Requirement/Scenario checklist per §0c step 6

## 2. Scaffolding

- [ ] 2.1 Create `packages/storage/storage-cdn/` mirroring `packages/storage/storage-http/` conventions (types-only — no benchmarks)
- [ ] 2.2 `package.json` v0.0.0, `"sideEffects": false`, subpath exports
- [ ] 2.3 Deps: `@suaveplan/error`, `@suaveplan/storage`, `@suaveplan/types`, `zod`, `tslib` (workspace/catalog)
- [ ] 2.4 DevDeps: `@suaveplan/testing`, `@vitest/coverage-istanbul`, `typescript`, `vite`, `vite-plugin-dts`, `vitest`
- [ ] 2.5 `tsconfig`, `vite.config.ts`, `vitest.config.ts` via `createTestConfig`

## 3. Implementation

- [ ] 3.1 `src/error-codes.ts` — `defineCodes("STORAGE_CDN", [...])` with 8 codes, `StorageCdnError` class
- [ ] 3.2 `src/types/cdn-capabilities.types.ts` — `CdnCapabilities` interface + `DEFAULT_CDN_CAPABILITIES`
- [ ] 3.3 `src/types/sign-url.types.ts` + `.schemas.ts` — `SignUrlOptions` + Zod schema
- [ ] 3.4 `src/types/cdn-adapter.types.ts` — `CdnAdapterOptions` base interface
- [ ] 3.5 `src/cdn-adapter/cdn-adapter.ts` — `CdnAdapter` abstract class extending `AbstractStorage`, three abstract methods, `defaultPurgeNotSupported()`/`defaultSignUrlNotSupported()` helpers
- [ ] 3.6 `src/sign-url/sign-url.ts` — schema parse + error mapping
- [ ] 3.7 `src/guards/guards.ts` — `isCdnAdapter`, `assertCdnAdapter`
- [ ] 3.8 `src/storage-augment.ts` — `declare module "@suaveplan/storage"` slot for `cdn?: CdnCapabilities`
- [ ] 3.9 `src/index.ts` — explicit named re-exports

## 4. Tests

- [ ] 4.1 `src/cdn-adapter/cdn-adapter.test.ts` — defaults, helpers throw documented codes
- [ ] 4.2 `src/cdn-adapter/cdn-adapter.spec-conformance.test.ts` — type conformance, augmentation slot optional, tier-purity grep
- [ ] 4.3 `src/sign-url/sign-url.test.ts` — schema rejects invalid ttl/method
- [ ] 4.4 `src/guards/guards.test.ts` — narrowing + assert throws
- [ ] 4.5 `src/error-codes/error-codes.test.ts` — every code reachable (provider codes forward-referenced)
- [ ] 4.6 Every `it(...)` carries `{ timeout: 5000 }`
- [ ] 4.7 All test imports via `@suaveplan/testing/runner` (§7)

## 5. Documentation

- [ ] 5.1 Sibling `.md` for every implementation `.ts`
- [ ] 5.2 `README.md` documents the family and links the two provider proposals

## 6. Gates

- [ ] 6.1 `bun run check`
- [ ] 6.2 `bunx turbo lint typecheck test --filter=@suaveplan/storage-cdn`
- [ ] 6.3 `bunx turbo test:coverage --filter=@suaveplan/storage-cdn` (100/100/100/100)
- [ ] 6.4 `bun scripts/lint/check-test-runner-imports.ts`
- [ ] 6.5 Tier-purity grep returns empty
- [ ] 6.6 `bun scripts/openspec-conformance.ts @suaveplan/storage-cdn`

## 7. Manifest & archival

- [ ] 7.1 `bun scripts/folder-reorg/generate-manifest.ts`
- [ ] 7.2 Update `STATUS.md`
- [ ] 7.3 Fold `specs/storage-cdn/spec.md` → `openspec/specs/storage-cdn/spec.md`
- [ ] 7.4 Move change folder → `openspec/archive/<yyyy-mm-dd>-add-storage-cdn/`