> 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/phase21-session02-project-windows-skill-roi-defaults/implementation-notes.md). # Implementation Notes **Session ID**: `phase21-session02-project-windows-skill-roi-defaults` **Started**: 2026-06-02 14:19 **Last Updated**: 2026-06-02 14:35 *** ## Session Progress | Metric | Value | | ------------------- | --------- | | Tasks Completed | 20 / 20 | | Estimated Remaining | 0 minutes | | Blockers | 0 | *** ### Task T020 - Validate ASCII and LF **Started**: 2026-06-02 14:34 **Completed**: 2026-06-02 14:35 **Duration**: 1 minute **Notes**: * Ran an ASCII scan across `.spec_system/state.json`, the session spec artifacts, and all touched source/test/example files. * Result: `ASCII OK`. * Ran a carriage-return scan across the same file list. * Result: `LF OK`. **Files Changed**: * `.spec_system/specs/phase21-session02-project-windows-skill-roi-defaults/implementation-notes.md` - Recorded encoding and line-ending verification. **BQC Fixes**: * N/A - Verification only. *** ### Task T019 - Run typecheck and full test gates **Started**: 2026-06-02 14:30 **Completed**: 2026-06-02 14:34 **Duration**: 4 minutes **Notes**: * Ran `bun run typecheck`; first run failed on a malformed workspace-transform fixture typed as a number, then passed after making the runtime-malformed value explicit with a cast. * Ran `bun run typecheck:scripts`; passed. * Ran `bun run test`; first run failed five stale saved-time default assertions in `src/routes/__tests__/home.test.tsx` and `src/lib/__tests__/time-saved-hook.test.tsx`. * Updated those tests to expect fallback minutes and non-zero default ROI. * Reran `bun run test -- src/routes/__tests__/home.test.tsx src/lib/__tests__/time-saved-hook.test.tsx`; passed with 2 files and 44 tests. * Reran `bun run test`; passed with 220 files and 2913 tests. * Reran `bun run typecheck` and `bun run typecheck:scripts` after the final test updates; both passed. **Files Changed**: * `src/lib/__tests__/transforms.test.ts` - Made the malformed numeric fixture explicit for TypeScript. * `src/routes/__tests__/home.test.tsx` - Updated stale saved-time default expectations. * `src/lib/__tests__/time-saved-hook.test.tsx` - Updated hook fallback-minute expectations. * `.spec_system/specs/phase21-session02-project-windows-skill-roi-defaults/implementation-notes.md` - Recorded typecheck and full test evidence. **BQC Fixes**: * Contract alignment: Full-route and hook tests now match the default-minute contract. *** ### Task T018 - Run focused validation and transform tests **Started**: 2026-06-02 14:29 **Completed**: 2026-06-02 14:30 **Duration**: 1 minute **Notes**: * Ran `bun run test -- src/lib/__tests__/nested-validation.test.ts src/lib/__tests__/route-transforms.test.ts src/lib/__tests__/transforms.test.ts src/lib/__tests__/time-saved.test.ts`. * Result: pass. Vitest reported 4 test files passed and 211 tests passed. **Files Changed**: * `.spec_system/specs/phase21-session02-project-windows-skill-roi-defaults/implementation-notes.md` - Recorded focused validation, transform, workspace-transform, and saved-time test evidence. **BQC Fixes**: * N/A - Verification only. *** ### Task T017 - Run focused aggregate project tests **Started**: 2026-06-02 14:28 **Completed**: 2026-06-02 14:29 **Duration**: 1 minute **Notes**: * Ran `bun run test -- scripts/lib/__tests__/aggregate-orchestration.test.ts`. * Result: pass. Vitest reported 1 test file passed and 14 tests passed. **Files Changed**: * `.spec_system/specs/phase21-session02-project-windows-skill-roi-defaults/implementation-notes.md` - Recorded focused aggregate test evidence. **BQC Fixes**: * N/A - Verification only. *** ### Task T016 - Port saved-time defaults **Started**: 2026-06-02 14:27 **Completed**: 2026-06-02 14:28 **Duration**: 1 minute **Notes**: * Ported the v2.3 `SKILL_MINUTE_DEFAULTS` prefix-regex table into AI OS. * Added the generic five-minute fallback for unknown and empty skill names. * Preserved existing override precedence because `minutesFor` still returns configured `minutes[name]` before `getDefaultMinutes(name)`. **Files Changed**: * `src/lib/time-saved.ts` - Added prefix defaults and generic fallback. * `.spec_system/specs/phase21-session02-project-windows-skill-roi-defaults/implementation-notes.md` - Logged T016 completion. **BQC Fixes**: * Contract alignment: Default lookup behavior now matches the ported v2.3 contract while preserving configured overrides. *** ### Task T015 - Update standalone workspace transform **Started**: 2026-06-02 14:27 **Completed**: 2026-06-02 14:27 **Duration**: 2 minutes **Notes**: * Extended the standalone typed workspace view model with `lastActiveMs` and `messages`. * Added bounded integer normalization for timestamp, session, and message counts. * Updated the existing transform test to cover finite rounding and malformed numeric defaults. **Files Changed**: * `src/lib/transforms/workspaces.ts` - Added shared project row fields and bounded numeric defaults. * `src/lib/__tests__/transforms.test.ts` - Updated workspace transform expectations for the richer row shape. * `.spec_system/specs/phase21-session02-project-windows-skill-roi-defaults/implementation-notes.md` - Logged T015 completion. **BQC Fixes**: * Contract alignment: Standalone workspace rows now align with the shared generated project row fields. * Failure path completeness: Malformed numeric values degrade to zero. *** ### Task T014 - Update route transforms for all-project history **Started**: 2026-06-02 14:26 **Completed**: 2026-06-02 14:27 **Duration**: 2 minutes **Notes**: * Added a shared project-history reader that prefers non-empty `allProjects`. * Kept legacy fallback to `recentProjects` when `allProjects` is empty, missing, or malformed. * Applied the reader to both workspace history and settings source rows. **Files Changed**: * `src/lib/route-transforms.ts` - Updated workspace and settings transforms to prefer `allProjects`. * `.spec_system/specs/phase21-session02-project-windows-skill-roi-defaults/implementation-notes.md` - Logged T014 completion. **BQC Fixes**: * State freshness on re-entry: All-history views now read the intended long-tail branch after recent semantics change. * Failure path completeness: Malformed project branches degrade to empty or legacy fallback behavior. *** ### Task T013 - Update live-data example **Started**: 2026-06-02 14:26 **Completed**: 2026-06-02 14:26 **Duration**: 2 minutes **Notes**: * Added sanitized example `recentProjects` and `allProjects` rows. * Kept paths in the committed example under `/home/operator/...` and did not touch generated private `src/data/live-data.json`. **Files Changed**: * `src/data/live-data.example.json` - Added example recent and long-tail project rows. * `.spec_system/specs/phase21-session02-project-windows-skill-roi-defaults/implementation-notes.md` - Logged T013 completion. **BQC Fixes**: * Error information boundaries: Example data uses sanitized operator paths only. *** ### Task T012 - Validate and default allProjects **Started**: 2026-06-02 14:25 **Completed**: 2026-06-02 14:26 **Duration**: 3 minutes **Notes**: * Added `allProjects` to `DEFAULT_LIVE_DATA`. * Added project row validation for string identity/path fields and non-negative integer timestamp/count fields. * Preserved legacy payload compatibility by defaulting missing or malformed project branches to empty arrays. * Dropped malformed project entries that do not provide a string `key` or `displayName`. **Files Changed**: * `src/lib/validate-live-data.ts` - Added project row validators and `allProjects` defaulting. * `.spec_system/specs/phase21-session02-project-windows-skill-roi-defaults/implementation-notes.md` - Logged T012 completion. **BQC Fixes**: * Trust boundary enforcement: Generated project rows are schema-sanitized before browser consumers read them. * Failure path completeness: Malformed arrays and rows degrade to safe empty/sanitized values. *** ### Task T011 - Extend live-data project contract **Started**: 2026-06-02 14:25 **Completed**: 2026-06-02 14:25 **Duration**: 1 minute **Notes**: * Extended `RecentProject` with project path aliases, `lastActiveMs`, and `messages`. * Added `allProjects` to the `LiveData` contract as the bounded long-tail project branch. **Files Changed**: * `src/lib/live-data-types.ts` - Added additive project row fields and `allProjects`. * `.spec_system/specs/phase21-session02-project-windows-skill-roi-defaults/implementation-notes.md` - Logged T011 completion. **BQC Fixes**: * Contract alignment: Browser types now match aggregate output and validation tests. *** ### Task T010 - Emit recent and all project rows **Started**: 2026-06-02 14:24 **Completed**: 2026-06-02 14:25 **Duration**: 1 minute **Notes**: * Replaced the old top-10 all-time `recentProjects` inline map with `projectRows.recentProjects`. * Added `allProjects` to aggregate output from the same helper, bounded to the default top 30 newest rows. * Used the aggregate `generatedAt` run clock for project recency calculations. **Files Changed**: * `scripts/lib/aggregate-orchestration.ts` - Wired project helper output into generated live data. * `.spec_system/specs/phase21-session02-project-windows-skill-roi-defaults/implementation-notes.md` - Logged T010 completion. **BQC Fixes**: * State freshness on re-entry: Project recency is tied to the aggregate run clock, not scattered wall-clock reads. * Contract alignment: Aggregate output now includes both recent and long-tail project branches. *** ### Task T009 - Extract aggregate project row builders **Started**: 2026-06-02 14:23 **Completed**: 2026-06-02 14:24 **Duration**: 5 minutes **Notes**: * Added `buildAggregateProjectRows` with injected `nowMs`, seven-day window default, top-30 `allProjects` default limit, sanitized keys/display names, finite timestamp filtering, stable sorting, and non-negative numeric defaults. * Kept `recentProjects` uncapped so the count remains honest for the seven-day window. **Files Changed**: * `scripts/lib/aggregate-orchestration.ts` - Added pure aggregate project row helpers and exported row types. * `.spec_system/specs/phase21-session02-project-windows-skill-roi-defaults/implementation-notes.md` - Logged T009 completion. **BQC Fixes**: * Trust boundary enforcement: Project keys and display names are sanitized before emission. * Contract alignment: Helper output now has explicit row fields and deterministic ordering. * Failure path completeness: Invalid timestamps are dropped locally instead of entering generated data. *** ### Task T008 - Add ROI total tests **Started**: 2026-06-02 14:23 **Completed**: 2026-06-02 14:23 **Duration**: 1 minute **Notes**: * Added ROI total coverage proving default minutes produce non-zero saved minutes and dollars. * Added override coverage proving caller-supplied minute values remain authoritative during ROI math. **Files Changed**: * `src/lib/__tests__/time-saved.test.ts` - Added default ROI and override ROI total tests. * `.spec_system/specs/phase21-session02-project-windows-skill-roi-defaults/implementation-notes.md` - Logged T008 completion. **BQC Fixes**: * Contract alignment: Tests pin the ROI calculation contract for default and overridden minute sources. *** ### Task T007 - Add saved-time default tests **Started**: 2026-06-02 14:22 **Completed**: 2026-06-02 14:23 **Duration**: 1 minute **Notes**: * Replaced the old all-zero default expectation with tests for known v2.3 prefixes, case-insensitive matching, unknown fallback, empty-name fallback, and explicit zero override precedence. **Files Changed**: * `src/lib/__tests__/time-saved.test.ts` - Added default minute lookup coverage. * `.spec_system/specs/phase21-session02-project-windows-skill-roi-defaults/implementation-notes.md` - Logged T007 completion. **BQC Fixes**: * Contract alignment: Tests now encode the precedence contract between configured minutes and defaults. *** ### Task T006 - Add workspace/history transform tests **Started**: 2026-06-02 14:22 **Completed**: 2026-06-02 14:22 **Duration**: 2 minutes **Notes**: * Added route-transform coverage proving all-workspace history prefers `allProjects`. * Added legacy fallback coverage for empty/missing `allProjects`. * Added malformed-state coverage for non-array project branches. * Added settings source row coverage so source-history rows also prefer `allProjects`. **Files Changed**: * `src/lib/__tests__/route-transforms.test.ts` - Added `allProjects` preference and fallback tests. * `.spec_system/specs/phase21-session02-project-windows-skill-roi-defaults/implementation-notes.md` - Logged T006 completion. **BQC Fixes**: * State freshness on re-entry: Tests require history transforms to read the correct all-history branch after `recentProjects` semantics change. * Contract alignment: Route transforms now have explicit expectations for new and legacy payloads. *** ### Task T005 - Add live-data validation tests **Started**: 2026-06-02 14:25 **Completed**: 2026-06-02 14:28 **Duration**: 3 minutes **Notes**: * Added validation coverage for additive `allProjects`, legacy payloads without `allProjects`, malformed project arrays, invalid project rows, and invalid timestamp/count fields. * Moved project-row validation out of the generic top-level array expectations so row schemas can be enforced explicitly. **Files Changed**: * `src/lib/__tests__/nested-validation.test.ts` - Added project-row validation expectations and example round-trip assertion for `allProjects`. * `.spec_system/specs/phase21-session02-project-windows-skill-roi-defaults/implementation-notes.md` - Logged T005 completion. **BQC Fixes**: * Trust boundary enforcement: Tests now require project rows crossing the generated-data boundary to be schema-validated. * Failure path completeness: Tests require malformed arrays and rows to degrade to safe arrays instead of leaking bad values. *** ### Task T004 - Add aggregate project helper tests **Started**: 2026-06-02 14:22 **Completed**: 2026-06-02 14:24 **Duration**: 2 minutes **Notes**: * Added tests for seven-day `recentProjects`, bounded `allProjects`, deterministic tie ordering, sanitized project labels, empty project activity, and invalid timestamp exclusion. * Tests target a new pure `buildAggregateProjectRows` helper so production wiring can reuse the same behavior. **Files Changed**: * `scripts/lib/__tests__/aggregate-orchestration.test.ts` - Added aggregate project row helper coverage. * `.spec_system/specs/phase21-session02-project-windows-skill-roi-defaults/implementation-notes.md` - Logged T004 completion. **BQC Fixes**: * Contract alignment: Tests now define the aggregate output contract before implementation. * Error information boundaries: Tests verify sanitized project identifiers are emitted. *** ### Task T003 - Record security posture **Started**: 2026-06-02 14:21 **Completed**: 2026-06-02 14:21 **Duration**: 1 minute **Notes**: * Documented that project metadata remains sanitized and bounded. * Documented that saved-time defaults are local static estimates with no new network, credential, or storage boundary. * Documented explicit override precedence and verification plan. **Files Changed**: * `.spec_system/specs/phase21-session02-project-windows-skill-roi-defaults/security-compliance.md` - Added session privacy and ROI-default security posture. * `.spec_system/specs/phase21-session02-project-windows-skill-roi-defaults/implementation-notes.md` - Logged T003 completion. **BQC Fixes**: * Trust boundary enforcement: Planned browser validation will sanitize project rows before UI consumers read them. *** ### Task T002 - Review existing tests and gaps **Started**: 2026-06-02 14:20 **Completed**: 2026-06-02 14:20 **Duration**: 1 minute **Notes**: * `scripts/lib/__tests__/aggregate-orchestration.test.ts` covers model and daily helper output but has no project-row helper coverage. * `src/lib/__tests__/nested-validation.test.ts` validates daily rows and generic top-level arrays but has no project-row sanitizer or `allProjects` coverage. * `src/lib/__tests__/route-transforms.test.ts` currently exercises workspace fallbacks from `recentProjects`; it does not prefer `allProjects` for history views. * `src/lib/__tests__/time-saved.test.ts` currently expects every default minute lookup to return zero, so tests must be updated before the default table can land. * `src/lib/__tests__/transforms.test.ts` covers the standalone workspace transform with sparse project rows, but not timestamp or message numeric defaults. **Files Changed**: * `.spec_system/specs/phase21-session02-project-windows-skill-roi-defaults/implementation-notes.md` - Recorded baseline test coverage gaps. **BQC Fixes**: * N/A - Context capture only. *** ## Task Log ### 2026-06-02 - Session Start **Environment verified**: * [x] Prerequisites confirmed * [x] Tools available * [x] Directory structure ready *** ### Task T001 - Verify source anchors **Started**: 2026-06-02 14:19 **Completed**: 2026-06-02 14:19 **Duration**: 1 minute **Notes**: * Confirmed Session 01 is listed as completed in `.spec_system/state.json`. * Confirmed active session from analysis script is `phase21-session02-project-windows-skill-roi-defaults`. * Confirmed AI OS currently builds `recentProjects` from all `parsed.projectActivity`, sorts by `lastActiveMs`, and caps to 10 without a seven-day cutoff. * Confirmed project activity rows expose `lastMs`, `sessions`, and `messages`. * Confirmed v2.3 source filters `recentProjects` by seven days and emits `allProjects` capped to 30. * Confirmed v2.3 source provides prefix-regex saved-time defaults plus a generic five-minute fallback. **Files Changed**: * `.spec_system/specs/phase21-session02-project-windows-skill-roi-defaults/implementation-notes.md` - Initialized session notes and recorded baseline anchors. **BQC Fixes**: * N/A - Context capture only. *** --- # Agent Instructions This documentation is published with GitBook. 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