> For the complete documentation index, see [llms.txt](https://faction-os.gitbook.io/faction-os-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://faction-os.gitbook.io/faction-os-docs/.spec_system/archive/sessions/phase22-session08-erasure-docs-and-validation/implementation_summary.md). # Implementation Summary **Session ID**: `phase22-session08-erasure-docs-and-validation` **Package**: apps/web **Completed**: 2026-07-05 **Duration**: 1 hour *** ## Overview Closed Phase 22 by adding the derived game projection storage key to browser-local erasure coverage, proving reset and erasure cleanup in focused tests, reconciling source-backed game-design/privacy docs, and validating the full session with focused and root test evidence. *** ## Deliverables ### Files Created | File | Purpose | Lines | | -------------------------------------------------------------------------------------------- | -------------------------------------------------- | ----- | | `.spec_system/specs/phase22-session08-erasure-docs-and-validation/implementation-notes.md` | Task evidence, command outputs, and closeout notes | 463 | | `.spec_system/specs/phase22-session08-erasure-docs-and-validation/code-review.md` | Code review and repair report | 80 | | `.spec_system/specs/phase22-session08-erasure-docs-and-validation/security-compliance.md` | Security and GDPR review | 86 | | `.spec_system/specs/phase22-session08-erasure-docs-and-validation/validation.md` | Validation evidence and final PASS result | 182 | | `.spec_system/specs/phase22-session08-erasure-docs-and-validation/IMPLEMENTATION_SUMMARY.md` | Session closeout summary | 87 | ### Files Modified | File | Changes | | ------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------- | | `apps/web/src/lib/localErasure.ts` | Added `GAME_PROJECTION_STORAGE_KEY` to the existing browser settings erasure inventory. | | `apps/web/tests/localErasure.test.ts` | Covered projection-key preview counts, raw-value redaction, confirmation removal, and duplicate idempotency. | | `apps/web/tests/gameProjectionStore.test.ts` | Extended reset coverage to prove fresh-store re-entry starts from seed projection state after storage removal. | | `apps/web/README_web.md` | Documented browser-local projection erasure and reset behavior without broad trusted-erasure claims. | | `docs/privacy-and-security.md` | Added browser-local derived projection cleanup wording and preserved no-claim boundaries. | | `docs/game-design/10-technical-design-and-game-projection.md` | Reconciled shipped Phase 22 projection behavior and deferred future game presentation claims. | | `docs/game-design/11-open-questions-and-change-log.md` | Added source-backed Session 08 closeout/change-log evidence. | | `docs/game-design/14-implemented-phases.md` | Recorded Phase 22 validation evidence and closeout status. | | `.spec_system/state.json` | Marked Session 08 and Phase 22 complete. | | `.spec_system/PRD/PRD.md` | Marked Phase 22 complete in the master PRD. | | `.spec_system/PRD/phase_22/PRD_phase_22.md` | Updated Phase 22 progress to 8/8 complete before archival. | | `apps/web/package.json` | Bumped package version from 0.1.64 to 0.1.65. | | `package-lock.json` | Reflected the `apps/web` package version bump. | *** ## Technical Decisions 1. **Reuse the existing browser settings erasure boundary**: The projection key is browser-local derived storage, so cleanup belongs in the current browser storage inventory rather than a new protocol boundary. 2. **Reuse `GAME_PROJECTION_STORAGE_KEY` directly**: Erasure, persistence, reset, and tests stay attached to one projection storage authority. 3. **Keep trusted unified erasure as a no-claim**: Documentation names the browser-local cleanup while avoiding broader claims about logs, backups, hosted state, or workspace files. *** ## Test Results | Metric | Value | | --------------------------- | -------------------------------- | | Focused projection tests | 26 passed | | Replay/local erasure tests | 16 passed | | Broadened store regressions | 60 passed | | Root suite | 3206 passed, 1 skipped, 0 failed | | Coverage | Not run | *** ## Lessons Learned 1. Browser-local derived state should be erased through existing storage inventories when it does not create a new product or protocol boundary. 2. Privacy docs need explicit no-claim language when a narrow erasure improvement could otherwise sound broader than the implementation. *** ## Future Considerations Items for future sessions: 1. Build game presentation phases only on top of the single `gameProjection.ts` state authority. 2. Expand trusted unified erasure only with complete inventory, executable coverage, tests, docs, and validation evidence across every claimed boundary. *** ## Session Statistics * **Tasks**: 15 completed * **Files Created**: 5 * **Files Modified**: 13 * **Tests Added**: 3 focused assertions/coverage areas * **Blockers**: 0 resolved --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. 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