# Tasks: enterprise-gaming-game-persistence

## 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.

## Phase 1 — Scaffold

- [ ] Create `gaming/engine/game-persistence/` (`@suaveplan/game-persistence`, `0.1.0`, `sideEffects: false`)
- [ ] `tsconfig.json`, `vitest.config.ts`

## Phase 2 — Error codes & constants

- [ ] `src/error-codes.ts` — `GamePersistenceError`, `SAVE.*` codes
- [ ] `src/constants/index.ts` — `DEFAULT_MAX_SLOTS`, `DEFAULT_MAX_SIZE_BYTES`, `AUTOSAVE_SLOT`

## Phase 3 — Types

- [ ] `src/types/common.ts` + `common.md` — `SaveSlot`, `Migration`, `SaveManagerOptions`

## Phase 4 — Migration runner

- [ ] `src/core/migration-runner/migration-runner.ts` — chain validation, sequential migration, gap/cycle detection
- [ ] Tests + docs

## Phase 5 — Save manager

- [ ] `src/core/save-manager/save-manager.ts` — save/load/delete/list/autosave with serialize + storage
- [ ] OTel spans + events
- [ ] Tests (including migration path, slot limit enforcement)
- [ ] Docs

## Phase 6 — Integration tests

- [ ] `tests/integration.test.ts` — full round-trip: save → reload with migration → verify

## Phase 7 — Pre-publish gate

- [ ] `bunx turbo lint typecheck test --filter=@suaveplan/game-persistence` green
- [ ] 100% coverage
- [ ] Publish: `bun scripts/publish.ts --package @suaveplan/game-persistence`