> 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/phase08-session03-local-erasure-runtime-and-controls/implementation_summary.md). # Implementation Summary **Session ID**: `phase08-session03-local-erasure-runtime-and-controls` **Package**: Cross-cutting **Completed**: 2026-05-31 **Duration**: 1 hour *** ## Overview Implemented the Phase 08 local trusted-erasure workflow for release-scoped local and browser state. The session added protocol contracts, server-side dry-run and confirm execution, CLI and web controls, redacted preview and result handling, focused tests, and the supporting docs closeout for the local-only erasure scope. *** ## Deliverables ### Files Created | File | Purpose | Lines | | ----------------------------------------------- | ------------------------------------------------------------------------- | ----- | | `packages/protocol/src/erasure.ts` | Shared runtime erasure contracts and helpers | \~180 | | `packages/protocol/tests/erasure.test.ts` | Protocol contract coverage | \~120 | | `apps/server/src/lib/localErasure.ts` | Local erasure runtime, preview, execution, audit, and verification engine | \~320 | | `apps/server/src/routes/erasure.ts` | Local erasure preview and confirm routes | \~160 | | `apps/server/tests/localErasure.test.ts` | Local erasure runtime tests | \~240 | | `apps/server/tests/erasureRoute.test.ts` | Route validation and redaction tests | \~180 | | `apps/cli/src/commands/erase.js` | CLI preview and confirm command | \~180 | | `apps/cli/src/lib/erasureClient.js` | CLI erasure client and redacted formatter | \~180 | | `apps/cli/tests/erasureClient.test.js` | CLI erasure client tests | \~180 | | `apps/web/src/lib/localErasure.ts` | Browser erasure helpers and local server client | \~220 | | `apps/web/src/store/useLocalErasureStore.ts` | Browser erasure UI state store | \~180 | | `apps/web/src/components/LocalErasurePanel.tsx` | Settings drawer erasure panel | \~240 | | `apps/web/tests/localErasure.test.ts` | Browser helper tests | \~180 | | `apps/web/tests/LocalErasurePanel.test.tsx` | Panel interaction tests | \~220 | ### Files Modified | File | Changes | | -------------------------------------------- | ---------------------------------------------------------------- | | `apps/server/src/server.ts` | Registered the local erasure routes behind local auth middleware | | `apps/cli/src/index.js` | Wired CLI dispatch and help for `erase` | | `apps/web/src/components/SettingsDrawer.tsx` | Mounted the local erasure panel in settings | | `docs/privacy-and-security.md` | Documented local/browser erasure scope and limits | | `docs/release.md` | Recorded release evidence and non-overclaim wording | | `docs/api/README_api.md` | Documented local erasure routes and response behavior | | `apps/cli/README_cli.md` | Documented CLI preview and confirm behavior | | `apps/web/README_web.md` | Documented browser-local erasure controls and limitations | | `apps/server/README_server.md` | Documented server-side erasure runtime scope and verification | *** ## Technical Decisions 1. **Protocol-first runtime vocabulary**: Shared request, result, audit, and verification shapes live in `packages/protocol` so server, CLI, web, and tests use the same redacted contract. 2. **Dry-run before mutation**: Confirmed erasure requires explicit confirmation and idempotency keys, with partial-failure and verified-absence handling for already-missing boundaries. *** ## Test Results | Metric | Value | | -------- | ----- | | Tests | 2259 | | Passed | 2258 | | Coverage | N/A | *** ## Lessons Learned 1. Local trusted erasure needs boundary-specific redaction from the first contract draft to keep previews, audit output, and verification safe. 2. Browser cleanup needs explicit in-flight guards and state reset on re-entry to avoid duplicate destructive actions and stale UI state. *** ## Future Considerations Items for future sessions: 1. Complete the remaining Phase 08 release-gate sessions for Worker and hosted identity claims, production validation, mobile/accessibility evidence, and final release closeout. 2. Keep the local-only erasure wording distinct from full trusted unified erasure until the later Phase 08 evidence is complete. *** ## Session Statistics * **Tasks**: 25 completed * **Files Created**: 14 * **Files Modified**: 9 * **Tests Added**: 6 * **Blockers**: 0 resolved --- # Agent Instructions This documentation is published with GitBook. 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