> 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/phase33-session03-harden-trend-finder-projection/code-review.md). # Code Review and Repair Report **Session ID**: `phase33-session03-harden-trend-finder-projection` **Reviewed**: 2026-06-25 **Scope**: All uncommitted changes in the working tree **Result**: RESOLVED ## Review Surface **Files reviewed** (all uncommitted changes): * `.spec_system/state.json` - tracked-modified * `.spec_system/specs/phase33-session03-harden-trend-finder-projection/spec.md` - untracked * `.spec_system/specs/phase33-session03-harden-trend-finder-projection/tasks.md` - untracked * `.spec_system/specs/phase33-session03-harden-trend-finder-projection/implementation-notes.md` - untracked * `.spec_system/specs/phase33-session03-harden-trend-finder-projection/code-review.md` - untracked * `demo-website/public/demo/live-data.snapshot.json` - tracked-modified * `demo-website/public/demo/snapshot-metadata.json` - tracked-modified * `demo-website/snapshot-manifest.json` - tracked-modified * `scripts/lib/__tests__/pages-demo-snapshot.test.ts` - tracked-modified * `scripts/lib/pages-demo-snapshot.ts` - tracked-modified **Inventory commands**: `git status`, `git diff HEAD`, `git diff --cached`, `git ls-files --others --exclude-standard` ## Findings by Severity ### Critical * None. ### High * `scripts/lib/pages-demo-snapshot.ts:2034` - `projection_invalid` failures from generated `src/data/live-data.json` could be caught by the generic live-data loader and silently replaced with the example fixture. That masked the explicit sanitized Engine Replay preservation failure required by the session and could ship the wrong public fixture. | Fix: rethrow `projection_invalid` for the generated live-data candidate and add a regression test proving a valid example fixture is not used as fallback for this failure. | Status: FIXED ### Medium * None. ### Low * None. ## Assumptions and Deliberate Non-Fixes * The existing fallback from missing or non-projection-invalid live data to committed example data remains intentional. The repair only makes generated live-data projection defects fatal because those indicate exporter/session contract failure, not an absent optional input. ## Behavior Changes * `runPagesDemoSnapshot()` now fails with `projection_invalid` when generated local LiveData cannot be projected coherently, instead of falling back to `src/data/live-data.example.json`. This is intentional and matches the Session 03 requirement to fail explicitly when sanitized Engine Replay data cannot be preserved. ## Verification * Tests: `bun run test -- scripts/lib/__tests__/pages-demo-snapshot.test.ts` - PASS - 1 file, 11 tests. * Tests: `bun run test -- scripts/lib/__tests__/pages-demo-snapshot.test.ts scripts/lib/__tests__/pages-demo-privacy-scan.test.ts` - PASS - 2 files, 22 tests. * Linter: `bunx eslint scripts/lib/pages-demo-snapshot.ts scripts/lib/__tests__/pages-demo-snapshot.test.ts` - PASS. * Formatter: `bunx prettier --check scripts/lib/pages-demo-snapshot.ts scripts/lib/__tests__/pages-demo-snapshot.test.ts .spec_system/specs/phase33-session03-harden-trend-finder-projection/spec.md .spec_system/specs/phase33-session03-harden-trend-finder-projection/tasks.md .spec_system/specs/phase33-session03-harden-trend-finder-projection/implementation-notes.md` - PASS. * Type checker: `bun run typecheck:scripts` - PASS. * Snapshot dry run: `bun run demo:snapshot --dry-run --json` - PASS - route coverage 24, scan pass, 0 issues, 0 files written. * Fixture privacy scan: `bun run demo:scan:pages --fixtures` - PASS - 5 fixtures scanned, 0 issues. * JSON parse: `jq empty demo-website/public/demo/live-data.snapshot.json demo-website/public/demo/snapshot-metadata.json demo-website/snapshot-manifest.json demo-website/public/demo/graphs/index.json demo-website/public/demo/graphs/ai-os.json` - PASS. * Whitespace: `git diff --check HEAD -- ...` - PASS. * ASCII: `perl -ne 'print "$ARGV:$.:$_" if /[^\x00-\x7F]/' ...` - PASS. * LF endings: `grep -Il $'\r' ...` - PASS - no CRLF matches. * Final diff re-read: PASS - no remaining review issues found. ## Summary 1. Reviewed 10 changed implementation, generated fixture, state, session, and review-report files. 2. Fixed 1 High finding by making generated live-data projection failures fatal and covering the no-fallback behavior. 3. Deliberately left non-projection-invalid example fallback behavior unchanged because it is outside this finding and preserves the existing optional-input path. 4. Verification passed for focused tests, lint, format, script typecheck, snapshot dry run, fixture scan, JSON parse, whitespace, ASCII, and LF checks. --- # 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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