> For the complete documentation index, see [llms.txt](https://ai-os-and-trend-finder.gitbook.io/ai-os-and-trend-finder-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ai-os-and-trend-finder.gitbook.io/ai-os-and-trend-finder-docs/.spec_system/archive/sessions/phase31-session02-snapshot-exporter-and-fixtures/implementation_summary.md). # Implementation Summary **Session ID**: `phase31-session02-snapshot-exporter-and-fixtures` **Completed**: 2026-06-24 **Duration**: 1.5 hours *** ## Overview Completed the Phase 31 public snapshot boundary. The session added a local-only Pages demo snapshot exporter, committed browser-safe `/demo/*` fixtures, scan and manifest evidence, graph fixture projection, and documentation that keeps Cloudflare Pages builds on committed fixtures instead of private local runtime data. *** ## Deliverables ### Files Created | File | Purpose | Lines | | --------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------ | ------ | | `scripts/lib/pages-demo-snapshot.ts` | Snapshot projection, privacy scanning, manifest generation, and atomic writes. | \~1740 | | `scripts/demo/export-pages-snapshot.ts` | Local-only CLI for `bun run demo:snapshot`. | \~173 | | `scripts/lib/__tests__/pages-demo-snapshot.test.ts` | Focused exporter, scanner, manifest, and write-rollback tests. | \~354 | | `demo-website/README.md` | Public demo fixture boundary and Pages consumption documentation. | \~55 | | `demo-website/snapshot-manifest.json` | Snapshot provenance, route coverage, input, redaction, and scan manifest. | \~115 | | `demo-website/public/demo/live-data.snapshot.json` | Public-safe LiveData fixture for later demo route consumption. | \~3901 | | `demo-website/public/demo/snapshot-metadata.json` | Snapshot metadata and provenance labels. | \~75 | | `demo-website/public/demo/graphs/index.json` | Public-safe Knowledge Graph registry fixture. | \~52 | | `demo-website/public/demo/graphs/ai-os.json` | Public-safe AI OS graph fixture. | \~478 | | `demo-website/public/demo/trend-finder-assets/README.md` | Public Trend Finder asset policy placeholder. | \~16 | | `.spec_system/specs/phase31-session02-snapshot-exporter-and-fixtures/implementation-notes.md` | Task-by-task implementation evidence. | \~674 | | `.spec_system/specs/phase31-session02-snapshot-exporter-and-fixtures/code-review.md` | Review and repair report. | \~87 | | `.spec_system/specs/phase31-session02-snapshot-exporter-and-fixtures/security-compliance.md` | Security and GDPR review. | \~80 | | `.spec_system/specs/phase31-session02-snapshot-exporter-and-fixtures/validation.md` | Final validation report. | \~179 | ### Files Modified | File | Changes | | ------------------------------------------- | ----------------------------------------------------------------------------------------- | | `.spec_system/state.json` | Marked Session 02 complete and cleared the current session. | | `.spec_system/PRD/phase_31/PRD_phase_31.md` | Updated progress to 2/7 sessions and moved Session 02 to completed. | | `package.json` | Added `demo:snapshot` and incremented version from `0.5.05` to `0.5.06`. | | `README.md` | Updated displayed version to `0.5.06`. | | `.gitignore` | Added explicit generated-only `demo-website/dist/` ignore coverage. | | `.prettierignore` | Excluded generated demo JSON fixtures from Prettier so ASCII-escaped output stays stable. | *** ## Technical Decisions 1. **Allowlist-first projection**: Public fixtures are generated from reviewed fields rather than copied or recursively redacted from raw runtime data. 2. **Local-only exporter**: `demo:snapshot` remains an authoring command; Pages builds consume committed fixture assets and never run the exporter. 3. **ASCII-safe fixtures**: Generated JSON escapes non-ASCII code units so session artifacts satisfy the spec-system ASCII requirement. 4. **Transactional writes**: Snapshot files are staged, scanned, and renamed only after all outputs pass validation, with rollback coverage for failures. *** ## Test Results | Metric | Value | | ---------------------- | ------------------ | | Full Test Files | 359 passed / 359 | | Full Tests | 4118 passed / 4118 | | Focused Exporter Tests | 7 passed / 7 | | Typecheck | PASS | | Script Typecheck | PASS | | Snapshot Exporter | PASS | | Fixture Privacy Scan | PASS | | Coverage | Not reported | *** ## Lessons Learned 1. Validator-backed example data can still expose credential-presence fields, so the public fixture scanner needs semantic field checks in addition to string-pattern checks. 2. Parser contracts for existing graph registry paths should be preserved in fixtures until route consumption work deliberately maps them to `/demo/*`. *** ## Future Considerations Items for future sessions: 1. Session 03 should switch app data consumers to frozen `/demo/*` assets and enforce hosted mutation and bridge-call guards. 2. Session 04 should apply the same safe fixture behavior across extension and agent routes. 3. Session 05 should add Pages build assembly, `_headers`, `_redirects`, preview scripts, and deployment documentation around `demo-website/dist`. *** ## Session Statistics * **Tasks**: 20 completed * **Files Created**: 14 core session deliverables plus this summary * **Files Modified**: 6 updateprd/session-support files * **Tests Added**: 1 focused exporter test file with 7 tests * **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. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. 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