> 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/phase15-session02-live-data-merge-boundary/implementation-notes.md). # Implementation Notes **Session ID**: `phase15-session02-live-data-merge-boundary` **Started**: 2026-05-31 18:01 **Last Updated**: 2026-05-31 18:09 *** ## Session Progress | Metric | Value | | ------------------- | --------- | | Tasks Completed | 16 / 16 | | Estimated Remaining | 0 minutes | | Blockers | 0 | *** ### Task T016 - Run diff and ASCII validation **Started**: 2026-05-31 18:09 **Completed**: 2026-05-31 18:09 **Duration**: 1 minute **Notes**: * Ran `git diff --check`. * Validated ASCII-only content for modified implementation files, runbook, and session artifacts. * Result: passed with no whitespace or ASCII issues. **Files Changed**: * `.spec_system/specs/phase15-session02-live-data-merge-boundary/tasks.md` - Marked T016 and the completion checklist complete. * `.spec_system/specs/phase15-session02-live-data-merge-boundary/implementation-notes.md` - Logged final validation. *** ### Task T015 - Run focused tests and script typecheck **Started**: 2026-05-31 18:08 **Completed**: 2026-05-31 18:09 **Duration**: 1 minute **Notes**: * Ran `bun run test -- scripts/lib/__tests__/aggregate-live-data-write.test.ts scripts/lib/__tests__/scheduler-locks.test.ts`. * Result: 2 files passed, 28 tests passed. * Ran `bun run typecheck:scripts`. * Result: passed with no TypeScript errors. **Files Changed**: * `.spec_system/specs/phase15-session02-live-data-merge-boundary/tasks.md` - Marked T015 complete. * `.spec_system/specs/phase15-session02-live-data-merge-boundary/implementation-notes.md` - Logged focused validation. *** ### Task T014 - Add shared lock and cleanup tests **Started**: 2026-05-31 18:04 **Completed**: 2026-05-31 18:08 **Duration**: 4 minutes **Notes**: * Kept existing shared lock blocking, stale recovery, and distinct lock path coverage. * Added failure cleanup coverage proving write replacement errors release the generated-data lock and remove temporary files. * Focused writer tests passed with 23 tests. **Files Changed**: * `scripts/lib/__tests__/aggregate-live-data-write.test.ts` - Added replacement-failure lock/temp cleanup coverage. * `.spec_system/specs/phase15-session02-live-data-merge-boundary/tasks.md` - Marked T014 complete. * `.spec_system/specs/phase15-session02-live-data-merge-boundary/implementation-notes.md` - Logged lock test additions. *** ### Task T013 - Add branch, fallback, missing branch, and privacy tests **Started**: 2026-05-31 18:04 **Completed**: 2026-05-31 18:08 **Duration**: 4 minutes **Notes**: * Kept existing branch preservation coverage for host/local and Trend Finder scoped writes. * Added empty live-data fallback coverage. * Added missing `extensions.items.trend-finder` rejection coverage. * Strengthened private-field rejection coverage for Linux paths, bearer tokens, auth payloads, and source dumps. * Focused writer tests passed with 23 tests. **Files Changed**: * `scripts/lib/__tests__/aggregate-live-data-write.test.ts` - Added and tightened writer coverage. * `.spec_system/specs/phase15-session02-live-data-merge-boundary/tasks.md` - Marked T013 complete. * `.spec_system/specs/phase15-session02-live-data-merge-boundary/implementation-notes.md` - Logged test additions. *** ### Task T012 - Update scheduled aggregate runbook guidance **Started**: 2026-05-31 18:04 **Completed**: 2026-05-31 18:08 **Duration**: 4 minutes **Notes**: * Updated the runbook to describe full aggregate as the compatibility full writer through the generated-data gate. * Clarified that all producer writes use `scheduler/locks/generated-live-data.lock`. * Preserved the boundary that scoped `agent-aggregate` and `trend-finder` jobs are not runnable yet. **Files Changed**: * `docs/runbooks/scheduled-aggregate.md` - Updated ownership, lock, and direct aggregate guidance. * `.spec_system/specs/phase15-session02-live-data-merge-boundary/tasks.md` - Marked T012 complete. * `.spec_system/specs/phase15-session02-live-data-merge-boundary/implementation-notes.md` - Logged runbook update. *** ### Task T011 - Route aggregate direct writes through producer gate **Started**: 2026-05-31 18:04 **Completed**: 2026-05-31 18:08 **Duration**: 4 minutes **Notes**: * Replaced the direct `Bun.write` output call with `writeGeneratedLiveDataForScope({ scope: "full" })`. * Preserved the `bun run aggregate` command and returned summary behavior while using the shared validation and write boundary. * Confirmed `scripts/aggregate.ts` no longer imports `prepareLiveDataForWrite` directly. **Files Changed**: * `scripts/aggregate.ts` - Routed full aggregate output through the generated live-data writer. * `.spec_system/specs/phase15-session02-live-data-merge-boundary/tasks.md` - Marked T011 complete. * `.spec_system/specs/phase15-session02-live-data-merge-boundary/implementation-notes.md` - Logged aggregate routing. **BQC Fixes**: * Contract alignment: full compatibility writes use the same producer gate as future scoped writers. * Duplicate action prevention: direct aggregate writes now participate in the generated-data lock boundary. *** ### Task T010 - Refine invalid-base fallback and safe errors **Started**: 2026-05-31 18:04 **Completed**: 2026-05-31 18:07 **Duration**: 3 minutes **Notes**: * Refined merge-base loading to classify missing, empty, invalid JSON, invalid shape, and unreadable bases. * Kept fallback to `src/data/live-data.example.json` when current live data is invalid or empty. * Added safe error output when neither current nor example live data is valid; the message reports statuses and omits private paths. * Focused writer tests passed. **Files Changed**: * `scripts/lib/aggregate-live-data-write.ts` - Added explicit merge-base read statuses and safe error reporting. * `scripts/lib/__tests__/aggregate-live-data-write.test.ts` - Added empty-base fallback and safe no-base error coverage. * `.spec_system/specs/phase15-session02-live-data-merge-boundary/tasks.md` - Marked T010 complete. * `.spec_system/specs/phase15-session02-live-data-merge-boundary/implementation-notes.md` - Logged fallback behavior. **BQC Fixes**: * Failure path completeness: scoped writes degrade from bad current data to the example base and report safe statuses if no base is usable. * Error information boundaries: base-loading failures do not include local filesystem paths. *** ### Task T009 - Refine Trend Finder scoped merge behavior **Started**: 2026-05-31 18:06 **Completed**: 2026-05-31 18:07 **Duration**: 1 minute **Notes**: * Confirmed Trend Finder scoped writes preserve host/local root branches and non-Trend Finder extension items. * Added focused coverage that rejects a Trend Finder scoped write when `extensions.items.trend-finder` is missing. * Strengthened privacy rejection for raw auth/source/transcript container fields before merge. **Files Changed**: * `scripts/lib/aggregate-live-data-write.ts` - Refined private container field rejection. * `scripts/lib/__tests__/aggregate-live-data-write.test.ts` - Added missing Trend Finder item and stronger privacy rejection coverage. * `.spec_system/specs/phase15-session02-live-data-merge-boundary/tasks.md` - Marked T009 complete. * `.spec_system/specs/phase15-session02-live-data-merge-boundary/implementation-notes.md` - Logged Trend Finder merge verification. **BQC Fixes**: * Trust boundary enforcement: scoped Trend Finder input is schema-validated before merge and requires the owned extension item. * Error information boundaries: privacy validation reports field paths and categories without leaking secret values. *** ### Task T008 - Refine host/local scoped merge behavior **Started**: 2026-05-31 18:06 **Completed**: 2026-05-31 18:07 **Duration**: 1 minute **Notes**: * Confirmed host/local scoped writes preserve the existing `extensions` branch from the merge base. * Refined the write boundary to replace files through a temp-file-and-rename transaction under the generated-data lock. * Added cleanup coverage for replacement failure; focused writer tests passed. **Files Changed**: * `scripts/lib/aggregate-live-data-write.ts` - Added atomic file replacement helper used by scoped writes. * `scripts/lib/__tests__/aggregate-live-data-write.test.ts` - Covered failure cleanup through the scoped writer. * `.spec_system/specs/phase15-session02-live-data-merge-boundary/tasks.md` - Marked T008 complete. * `.spec_system/specs/phase15-session02-live-data-merge-boundary/implementation-notes.md` - Logged host/local merge verification. **BQC Fixes**: * Concurrency safety: scoped writes are serialized by the generated-data lock. * Failure path completeness: failed replacement leaves the previous artifact in place and cleans temporary output. *** ### Task T007 - Verify full-write validation before write **Started**: 2026-05-31 18:06 **Completed**: 2026-05-31 18:07 **Duration**: 1 minute **Notes**: * Confirmed full writes call `prepareLiveDataForWrite`, which compares producer output with read-side `validateLiveData` output before any file replacement. * Existing focused tests verify complete output is accepted and read-side repairs are rejected before write. * Focused writer tests passed after changes. **Files Changed**: * `.spec_system/specs/phase15-session02-live-data-merge-boundary/tasks.md` - Marked T007 complete. * `.spec_system/specs/phase15-session02-live-data-merge-boundary/implementation-notes.md` - Logged full-write validation verification. **BQC Fixes**: * Contract alignment: producer output must already match the browser-side `LiveData` contract; read-side repair is treated as a write failure. *** ### Task T006 - Verify scheduler lock stale-recovery reuse **Started**: 2026-05-31 18:05 **Completed**: 2026-05-31 18:06 **Duration**: 1 minute **Notes**: * Verified generated-data locking reuses `acquireSchedulerLock` and `releaseSchedulerLock` without changing owner checks. * Confirmed existing scheduler lock tests still cover acquire, block, stale recovery, owner mismatch preservation, and owner-safe release. * Focused scheduler lock tests passed: `bun run test -- scripts/lib/__tests__/scheduler-locks.test.ts`. **Files Changed**: * `.spec_system/specs/phase15-session02-live-data-merge-boundary/tasks.md` - Marked T006 complete. * `.spec_system/specs/phase15-session02-live-data-merge-boundary/implementation-notes.md` - Logged lock semantics verification. **BQC Fixes**: * Concurrency safety: stale recovery and owner-mismatch behavior remain centralized in the scheduler lock implementation. *** ### Task T005 - Verify generated-data lock wrapper and cleanup **Started**: 2026-05-31 18:03 **Completed**: 2026-05-31 18:06 **Duration**: 3 minutes **Notes**: * Verified `generated-live-data` resolves to a private scheduler lock path separate from per-job run locks. * Kept lock acquisition and release on the existing scheduler lock implementation. * Added atomic temp-file replacement and cleanup so a failed replacement releases the generated-data lock and removes the temporary file. * Focused writer tests passed: `bun run test -- scripts/lib/__tests__/aggregate-live-data-write.test.ts`. **Files Changed**: * `scripts/lib/aggregate-live-data-write.ts` - Added temp-file replacement and cleanup while preserving lock release in `finally`. * `scripts/lib/__tests__/aggregate-live-data-write.test.ts` - Added lock/temp cleanup coverage. * `.spec_system/specs/phase15-session02-live-data-merge-boundary/tasks.md` - Marked T005 complete. * `.spec_system/specs/phase15-session02-live-data-merge-boundary/implementation-notes.md` - Logged lock cleanup verification. **BQC Fixes**: * Resource cleanup: failed writes now remove temporary files and release acquired generated-data locks. * Duplicate action prevention: all generated-data writes are serialized through the shared lock. *** ### Task T004 - Finalize Trend Finder extension ownership constants **Started**: 2026-05-31 18:03 **Completed**: 2026-05-31 18:03 **Duration**: 1 minute **Notes**: * Added a `LiveDataExtensionBranch` template-literal type for the Trend Finder extension path. * Kept the extension ownership list scoped to `extensions.items.trend-finder`. **Files Changed**: * `scripts/lib/aggregate-live-data-write.ts` - Tightened extension ownership typing. * `.spec_system/specs/phase15-session02-live-data-merge-boundary/tasks.md` - Marked T004 complete. * `.spec_system/specs/phase15-session02-live-data-merge-boundary/implementation-notes.md` - Logged extension ownership typing. **BQC Fixes**: * Contract alignment: extension branch ownership is typed to the exact Trend Finder item path used by scoped writes. *** ### Task T003 - Finalize host/local branch ownership constants **Started**: 2026-05-31 18:02 **Completed**: 2026-05-31 18:03 **Duration**: 1 minute **Notes**: * Added a `LiveDataHostLocalBranch` type that excludes `extensions` from the allowed host/local root branch list. * Kept the representative root branch list aligned with current aggregate output and the optional `settings` branch. **Files Changed**: * `scripts/lib/aggregate-live-data-write.ts` - Tightened host/local ownership typing. * `.spec_system/specs/phase15-session02-live-data-merge-boundary/tasks.md` - Marked T003 complete. * `.spec_system/specs/phase15-session02-live-data-merge-boundary/implementation-notes.md` - Logged ownership typing. **BQC Fixes**: * Contract alignment: host/local ownership now cannot type-check if `extensions` is accidentally added to the root-owned branch list. *** ### Task T002 - Inventory aggregate-emitted live-data branches **Started**: 2026-05-31 18:01 **Completed**: 2026-05-31 18:02 **Duration**: 1 minute **Notes**: * Reviewed `scripts/aggregate.ts` output root branches: `isExample`, `generatedAt`, `summary`, `subscriptions`, `usage`, `modelUsage`, `daily`, `activity`, `recentProjects`, `skills`, `integrations`, `automations`, `knowledgeStores`, `modelSplit`, `memory`, `hermes`, `openclaw`, `localAgents`, `detection`, `dream`, and `extensions`. * Compared the emitted roots with `LIVE_DATA_HOST_LOCAL_BRANCHES`; the planned host/local map covers all aggregate roots except `extensions` and includes optional `settings`. * Confirmed the extension ownership map is limited to `extensions.items.trend-finder`. **Files Changed**: * `.spec_system/specs/phase15-session02-live-data-merge-boundary/tasks.md` - Marked T002 complete. * `.spec_system/specs/phase15-session02-live-data-merge-boundary/implementation-notes.md` - Logged branch inventory. *** ### Task T001 - Verify Session 01 prerequisites, writer files, and focused commands **Started**: 2026-05-31 18:01 **Completed**: 2026-05-31 18:01 **Duration**: 1 minute **Notes**: * Confirmed Session 01 validation passed with `bun run test`, `bun run typecheck:scripts`, and `git diff --check`. * Confirmed Bun is available through the prerequisite checker. * Confirmed the current session targets existing writer, scheduler lock, aggregate, test, and runbook files. **Files Changed**: * `.spec_system/specs/phase15-session02-live-data-merge-boundary/tasks.md` - Marked T001 complete. * `.spec_system/specs/phase15-session02-live-data-merge-boundary/implementation-notes.md` - Logged setup verification. *** ## Task Log ### 2026-05-31 - Session Start **Environment verified**: * [x] Prerequisites confirmed * [x] Tools available * [x] Directory structure ready *** --- # Agent Instructions This documentation is published with GitBook. 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