> 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/phase28-session13-keyword-packs-rotation-and-coverage/implementation-notes.md).

# Implementation Notes

**Session ID**: `phase28-session13-keyword-packs-rotation-and-coverage` **Started**: 2026-06-14 13:36 **Last Updated**: 2026-06-14 14:30

***

## Session Progress

| Metric              | Value     |
| ------------------- | --------- |
| Tasks Completed     | 25 / 25   |
| Estimated Remaining | 0 minutes |
| Blockers            | 0         |

***

### Task T025 - Run final verification

**Started**: 2026-06-14 14:27 **Completed**: 2026-06-14 14:30 **Duration**: 3 minutes

**Notes**:

* Ran the complete focused session test set successfully: 7 files, 102 tests.
* Verified app TypeScript and script TypeScript both pass.
* Verified modified and untracked session files are ASCII-only.
* No unrelated repo-wide failures were encountered.

**Verification Commands**:

* `bunx vitest run scripts/extensions/trend-finder/sources/__tests__/keyword-packs.test.ts scripts/extensions/trend-finder/sources/__tests__/apify-source-config.test.ts scripts/extensions/trend-finder/sources/__tests__/apify-adapter.test.ts scripts/extensions/trend-finder/__tests__/collector.test.ts scripts/extensions/trend-finder/__tests__/engine-trace.test.ts scripts/lib/ai-runtime/__tests__/movement-analyst.test.ts src/extensions/trend-finder/components/__tests__/source-setup-panel.test.tsx` - passed, 102 tests.
* `bunx tsc --noEmit --pretty false` - passed.
* `bunx tsc --noEmit -p tsconfig.scripts.json --pretty false` - passed.
* `LC_ALL=C rg -n "[^[:ascii:]]" $(git ls-files -m -o --exclude-standard) || test $? -eq 1` - passed.

**Files Changed**:

* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/tasks.md` - marked T025 and checklist complete.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/implementation-notes.md` - recorded final verification.

**BQC Fixes**:

* Contract alignment: fixed script-test type mismatches found by final TypeScript verification.
* Test integrity: reran the focused suite after type-only test assertion cleanup.

***

### Task T024 - Add movement and Source Setup coverage tests

**Started**: 2026-06-14 14:24 **Completed**: 2026-06-14 14:27 **Duration**: 3 minutes

**Notes**:

* Added movement analyst prompt and deterministic fallback coverage for `not-scanned` scan eligibility.
* Extended Source Setup tests for legacy keyword coverage defaults, view-model labels, focused coverage rendering, empty coverage state, and draft reset on data re-entry.
* Verified with `bunx vitest run scripts/lib/ai-runtime/__tests__/movement-analyst.test.ts src/extensions/trend-finder/components/__tests__/source-setup-panel.test.tsx`.

**Files Changed**:

* `scripts/lib/ai-runtime/__tests__/movement-analyst.test.ts` - added scan eligibility prompt and not-scanned fallback tests.
* `src/extensions/trend-finder/components/__tests__/source-setup-panel.test.tsx` - added schema, view-model, focused coverage, empty, and re-entry tests.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/tasks.md` - marked T024 complete and updated progress.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/implementation-notes.md` - recorded task details.

**BQC Fixes**:

* Failure path completeness: not-scanned movement no longer looks like normal cooling in deterministic fallback tests.
* State freshness on re-entry: Source Setup draft state resets when refreshed data changes.
* Contract alignment: schema defaults and view-model coverage labels are tested with the component.

***

### Task T023 - Add source/adapter/collector/trace tests

**Started**: 2026-06-14 14:20 **Completed**: 2026-06-14 14:24 **Duration**: 4 minutes

**Notes**:

* Added source declaration tests for reviewed keyword target mappings and invalid target validation.
* Added adapter coverage for keyword-window application to cloned Actor input and spend label preservation.
* Added collector coverage for invalid focused category fallback warnings, Apify keyword-window propagation, Source Setup summary propagation, and trace payloads.
* Added Engine Trace sanitizer coverage for valid keyword summaries and unsafe-value fallback.
* Verified with `bunx vitest run scripts/extensions/trend-finder/sources/__tests__/apify-source-config.test.ts scripts/extensions/trend-finder/sources/__tests__/apify-adapter.test.ts scripts/extensions/trend-finder/__tests__/collector.test.ts scripts/extensions/trend-finder/__tests__/engine-trace.test.ts`.

**Files Changed**:

* `scripts/extensions/trend-finder/sources/__tests__/apify-source-config.test.ts` - added keyword target declaration tests.
* `scripts/extensions/trend-finder/sources/__tests__/apify-adapter.test.ts` - added cloned keyword input and spend label test.
* `scripts/extensions/trend-finder/__tests__/collector.test.ts` - added keyword propagation, warning, setup, and trace test.
* `scripts/extensions/trend-finder/__tests__/engine-trace.test.ts` - added keyword trace sanitizer test.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/tasks.md` - marked T023 complete and updated progress.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/implementation-notes.md` - recorded task details.

**BQC Fixes**:

* Failure path completeness: tests cover invalid focused category fallback and unsafe trace fallback.
* Error information boundaries: tests assert private-looking keyword trace values are not serialized.
* Contract alignment: focused source/collector/trace tests passed after warning-source expectation was aligned to `keyword-packs`.

***

### Task T022 - Add keyword-pack unit tests

**Started**: 2026-06-14 14:18 **Completed**: 2026-06-14 14:20 **Duration**: 2 minutes

**Notes**:

* Added focused keyword-pack tests for invalid mode/category fallback, reviewed category lookup, deterministic rotation, dedupe, focused coverage, per-source caps, cloned input application, text query length bounds, and unsupported source summaries.
* Verified with `bunx vitest run scripts/extensions/trend-finder/sources/__tests__/keyword-packs.test.ts`.

**Files Changed**:

* `scripts/extensions/trend-finder/sources/__tests__/keyword-packs.test.ts` - new keyword-pack unit coverage.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/tasks.md` - marked T022 complete and updated progress.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/implementation-notes.md` - recorded task details.

**BQC Fixes**:

* Contract alignment: tests assert keyword windows are bounded, deterministic, and source cap aware.
* State freshness on re-entry: tests assert cloned input application does not mutate static source declarations.

***

### Task T021 - Update Trend Finder source docs

**Started**: 2026-06-14 14:16 **Completed**: 2026-06-14 14:18 **Duration**: 2 minutes

**Notes**:

* Documented shipped balanced and focused keyword scan modes.
* Added reviewed category IDs, eligible query target fields, coverage QA labels, script-side env keys, and source cap behavior.
* Documented that keyword rotation preserves source caps, charge ceilings, spend labels, and browser-safe evidence boundaries.
* Verified the updated source docs are ASCII-only.

**Files Changed**:

* `docs/extensions/trend-finder-sources.md` - added keyword scan, coverage QA, env key, setup visibility, and spend preservation docs.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/tasks.md` - marked T021 complete and updated progress.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/implementation-notes.md` - recorded task details.

**BQC Fixes**:

* Browser safety: docs explicitly keep raw Actor input and free-text browser keywords out of scope.
* Cost controls: docs state keyword compilation must preserve source caps, charge ceilings, and spend-state labels.

***

### Task T020 - Project keyword coverage view-model labels

**Started**: 2026-06-14 14:15 **Completed**: 2026-06-14 14:16 **Duration**: 1 minute

**Notes**:

* Added keyword coverage status labels, tones, focused-mode labels, selected/rotated counts, and source cap summaries to the Source Setup view model.
* Moved keyword coverage component formatting onto the projected view model.
* Kept existing setup diagnostics projection intact and added keyword-specific warning projection.
* Verified app type safety with `bunx tsc --noEmit --pretty false`.

**Files Changed**:

* `src/extensions/trend-finder/view-model.ts` - added keyword coverage projection helpers and Source Setup view-model wiring.
* `src/extensions/trend-finder/components/keyword-coverage-summary.tsx` - renders projected keyword coverage rows.
* `src/extensions/trend-finder/components/source-setup-panel.tsx` - passes view-model coverage into the summary component.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/tasks.md` - marked T020 complete and updated progress.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/implementation-notes.md` - recorded task details.

**BQC Fixes**:

* Contract alignment: app TypeScript passed after moving coverage presentation to the view model.
* Accessibility and platform compliance: the coverage component keeps the existing aria summary while labels are projected centrally.

***

### Task T019 - Render coverage QA in Source Setup

**Started**: 2026-06-14 14:13 **Completed**: 2026-06-14 14:15 **Duration**: 2 minutes

**Notes**:

* Rendered the read-only keyword coverage summary inside Source Setup.
* Kept scan mode/category mutation out of browser UI.
* Reused existing Source Setup reload and draft reset behavior on data re-entry.
* Verified app type safety with `bunx tsc --noEmit --pretty false`.

**Files Changed**:

* `src/extensions/trend-finder/components/source-setup-panel.tsx` - renders `KeywordCoverageSummary`.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/tasks.md` - marked T019 complete and updated progress.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/implementation-notes.md` - recorded task details.

**BQC Fixes**:

* Accessibility and platform compliance: coverage summary remains aria-labeled and read-only.
* State freshness on re-entry: component consumes refreshed Source Setup state without local mutation controls.

***

### Task T018 - Wire not-scanned movement handling

**Started**: 2026-06-14 14:09 **Completed**: 2026-06-14 14:13 **Duration**: 4 minutes

**Notes**:

* Added collector-side topic scan eligibility derived from selected and rotated-out keyword windows.
* Passed scan eligibility into movement analyst input.
* Updated deterministic movement fallback so not-scanned topics use stable movement with explicit collection-window text instead of normal cooling language.
* Verified script type safety with `bunx tsc --noEmit -p tsconfig.scripts.json --pretty false`.

**Files Changed**:

* `scripts/extensions/trend-finder/collector.ts` - added scan eligibility derivation and movement input propagation.
* `scripts/lib/ai-runtime/movement-analyst.ts` - added not-scanned fallback summaries and recommendations.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/tasks.md` - marked T018 complete and updated progress.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/implementation-notes.md` - recorded task details.

**BQC Fixes**:

* State freshness on re-entry: movement eligibility is recomputed from the current run keyword window.
* Contract alignment: script TypeScript passed after eligibility propagation.

***

### Task T017 - Add frontend engine trace keyword schema

**Started**: 2026-06-14 14:04 **Completed**: 2026-06-14 14:09 **Duration**: 5 minutes

**Notes**:

* Added Engine Trace keyword scan mode, coverage status, target field, target kind, window, coverage row, and source cap contracts.
* Added default keyword trace state for legacy payloads.
* Added zod parsing, bounds, sorting, and normalization for keyword rows and source caps.
* Verified app and script type safety with `bunx tsc --noEmit --pretty false` and `bunx tsc --noEmit -p tsconfig.scripts.json --pretty false`.

**Files Changed**:

* `src/extensions/trend-finder/engine-trace.ts` - added frontend Engine Trace keyword schema, defaults, and normalization.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/tasks.md` - marked T017 complete and updated progress.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/implementation-notes.md` - recorded task details.

**BQC Fixes**:

* Contract alignment: Engine Trace schema retains legacy defaults and app/script TypeScript checks passed.

***

### Task T016 - Sanitize keyword summaries in engine trace

**Started**: 2026-06-14 14:04 **Completed**: 2026-06-14 14:09 **Duration**: 5 minutes

**Notes**:

* Added backend Engine Trace mapping for keyword window summaries from collection trace events.
* Sanitized mode, category, coverage rows, source caps, warnings, and counts.
* Rejected unsafe nested values before publishing keyword trace data.
* Verified app and script type safety with `bunx tsc --noEmit --pretty false` and `bunx tsc --noEmit -p tsconfig.scripts.json --pretty false`.

**Files Changed**:

* `scripts/extensions/trend-finder/engine-trace.ts` - added keyword window sanitizer and output mapping.
* `src/extensions/trend-finder/engine-trace.ts` - added shared keyword trace contracts required by the sanitizer.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/tasks.md` - marked T016 complete and updated progress.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/implementation-notes.md` - recorded task details.

**BQC Fixes**:

* Error information boundaries: unsafe keyword trace values are dropped back to defaults before browser publication.
* Contract alignment: app and script TypeScript checks passed.

***

### Task T015 - Resolve keyword scan mode in collector

**Started**: 2026-06-14 14:00 **Completed**: 2026-06-14 14:04 **Duration**: 4 minutes

**Notes**:

* Added keyword env keys to collector optional env declarations.
* Resolved the keyword window once per run from script-side env and `generatedAt`.
* Passed the raw window to Apify collection and kept only bounded summaries in trace and Source Setup state.
* Propagated invalid mode/category fallback warnings as collector warnings.
* Verified script type safety with `bunx tsc --noEmit -p tsconfig.scripts.json --pretty false`.

**Files Changed**:

* `scripts/extensions/trend-finder/collector.ts` - added scan resolution, adapter propagation, setup summary attachment, and trace payload field.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/tasks.md` - marked T015 complete and updated progress.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/implementation-notes.md` - recorded task details.

**BQC Fixes**:

* State freshness on re-entry: collector resolves a fresh keyword window once per run from the current generated timestamp.
* Failure path completeness: invalid env values create explicit warnings and fall back to balanced scan.

***

### Task T014 - Apply keyword windows in Apify adapter

**Started**: 2026-06-14 13:57 **Completed**: 2026-06-14 14:00 **Duration**: 3 minutes

**Notes**:

* Added optional keyword window input to the Apify adapter dependencies.
* Applied compiled terms to cloned source objects before Actor calls.
* Preserved existing inputs for sources without reviewed keyword targets.
* Added bounded keyword cap summaries to adapter results, including missing-token and invalid-historical-window paths.
* Verified script type safety with `bunx tsc --noEmit -p tsconfig.scripts.json --pretty false`.

**Files Changed**:

* `scripts/extensions/trend-finder/sources/apify-adapter.ts` - added keyword preparation, cloned input application, and keyword window summaries.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/tasks.md` - marked T014 complete and updated progress.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/implementation-notes.md` - recorded task details.

**BQC Fixes**:

* Resource cleanup: keyword compilation is synchronous and does not add timers, subscriptions, or external calls.
* Failure path completeness: invalid keyword target mappings produce explicit adapter warnings and bounded skipped summaries.

***

### Task T013 - Add reviewed keyword target metadata

**Started**: 2026-06-14 13:54 **Completed**: 2026-06-14 13:57 **Duration**: 3 minutes

**Notes**:

* Added keyword targets for reviewed query fields on eligible Apify declarations.
* Kept GitHub, RSS, and subreddit-feed sources without keyword targets because their editable targets are not reviewed query fields.
* Extended declaration validation to verify keyword target schema and setup target mapping.
* Tightened helper types so unreviewed fields cannot be passed at compile time.
* Verified script type safety with `bunx tsc --noEmit -p tsconfig.scripts.json --pretty false`.

**Files Changed**:

* `scripts/extensions/trend-finder/sources/apify-source-config.ts` - added keyword target metadata and validation.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/tasks.md` - marked T013 complete and updated progress.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/implementation-notes.md` - recorded task details.

**BQC Fixes**:

* Trust boundary enforcement: reviewed keyword targets must map to reviewed setup targets before collection can use them.
* Contract alignment: script TypeScript passed after declaration validation was added.

***

### Task T012 - Create keyword coverage summary component

**Started**: 2026-06-14 13:52 **Completed**: 2026-06-14 13:54 **Duration**: 2 minutes

**Notes**:

* Added a bounded Source Setup keyword coverage summary component.
* Supports loading, empty/default coverage, balanced/focused labels, category rows, source cap rows, and accessible summary labels.
* Verified app type safety with `bunx tsc --noEmit --pretty false`.

**Files Changed**:

* `src/extensions/trend-finder/components/keyword-coverage-summary.tsx` - new coverage summary component.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/tasks.md` - marked T012 complete and updated progress.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/implementation-notes.md` - recorded task details.

**BQC Fixes**:

* Accessibility and platform compliance: component exposes an aria-labeled summary and decorative icons are hidden from assistive tech.
* Contract alignment: app TypeScript passed with the new component and schema contract.

***

### Task T011 - Extend movement analyst scan eligibility contracts

**Started**: 2026-06-14 13:50 **Completed**: 2026-06-14 13:52 **Duration**: 2 minutes

**Notes**:

* Added per-topic scan eligibility state to movement analyst input contracts.
* Extended validation schema and prompts so AI-backed analysis can distinguish not-scanned gaps from normal cooling.
* Verified script type safety with `bunx tsc --noEmit -p tsconfig.scripts.json --pretty false`.

**Files Changed**:

* `scripts/lib/ai-runtime/movement-analyst.ts` - added scan eligibility state, schema, and prompt lines.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/tasks.md` - marked T011 complete and updated progress.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/implementation-notes.md` - recorded task details.

**BQC Fixes**:

* Contract alignment: script TypeScript passed after the movement input contract change.

***

### Task T010 - Extend browser schema defaults for keyword coverage

**Started**: 2026-06-14 13:47 **Completed**: 2026-06-14 13:50 **Duration**: 3 minutes

**Notes**:

* Added browser-safe keyword scan mode, coverage row, source cap, and window summary schemas.
* Added default keyword coverage to Source Setup state so legacy payload parsing remains additive.
* Updated source setup state generation and representative fixtures to carry the default summary.
* Verified app type safety with `bunx tsc --noEmit --pretty false`.

**Files Changed**:

* `src/extensions/trend-finder/schema.ts` - added keyword coverage schemas and Source Setup defaults.
* `scripts/extensions/trend-finder/sources/source-setup.ts` - added default balanced keyword coverage summary to setup state.
* `src/extensions/trend-finder/fixtures.ts` - added default fixture coverage summary.
* `src/extensions/trend-finder/components/__tests__/source-setup-panel.test.tsx` - added default test fixture coverage summary.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/tasks.md` - marked T010 complete and updated progress.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/implementation-notes.md` - recorded task details.

**BQC Fixes**:

* Contract alignment: app TypeScript passed after the additive Source Setup schema change.
* State freshness on re-entry: source setup state computes a fresh default coverage summary for the generated timestamp.

***

### Task T009 - Extend source-side keyword types

**Started**: 2026-06-14 13:46 **Completed**: 2026-06-14 13:47 **Duration**: 1 minute

**Notes**:

* Added source-side keyword scan mode, target, coverage row, source cap, window, and compilation contracts.
* Extended Apify source declarations with optional reviewed keyword target metadata.
* Extended source adapter results with an optional bounded keyword window summary.
* Verified the new script contracts with `bunx tsc --noEmit -p tsconfig.scripts.json --pretty false`.

**Files Changed**:

* `scripts/extensions/trend-finder/sources/types.ts` - added keyword contracts and adapter result extension.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/tasks.md` - marked T009 complete and updated progress.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/implementation-notes.md` - recorded task details.

**BQC Fixes**:

* Contract alignment: TypeScript script checking passed after adding the source-side contracts.

***

### Task T008 - Add bounded coverage and cap summaries

**Started**: 2026-06-14 13:46 **Completed**: 2026-06-14 13:47 **Duration**: 1 minute

**Notes**:

* Added coverage rows for each reviewed category with scanned/not-scanned state.
* Added ready/review/thin coverage status derivation and selected/not-scanned counts.
* Added bounded keyword window summaries for trace and Source Setup projection.
* Added per-source cap summaries with applied counts and capped/skipped labels.

**Files Changed**:

* `scripts/extensions/trend-finder/sources/keyword-packs.ts` - added coverage rows and bounded summary projection.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/tasks.md` - marked T008 complete and updated progress.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/implementation-notes.md` - recorded task details.

**BQC Fixes**:

* Error information boundaries: summary helpers cap rows and warnings and exclude raw selected term lists.

***

### Task T007 - Add per-source keyword compilation

**Started**: 2026-06-14 13:46 **Completed**: 2026-06-14 13:47 **Duration**: 1 minute

**Notes**:

* Added source compilation for reviewed target fields and target kinds.
* Text targets are bounded by target max length; list targets receive capped arrays.
* Source cap summaries preserve max item and charge-cap context through spend labels.
* Source input changes are returned as cloned patches for adapter use.

**Files Changed**:

* `scripts/extensions/trend-finder/sources/keyword-packs.ts` - added per-source compilation, input patch generation, cap summaries, and source application helpers.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/tasks.md` - marked T007 complete and updated progress.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/implementation-notes.md` - recorded task details.

**BQC Fixes**:

* Duplicate action prevention: compilation is pure and does not mutate static declarations, preventing repeated runs from appending or widening existing inputs.
* Contract alignment: unknown target fields and invalid target declarations produce explicit warnings instead of being applied.

***

### Task T006 - Add stable-core and rotating-tail selection

**Started**: 2026-06-14 13:46 **Completed**: 2026-06-14 13:47 **Duration**: 1 minute

**Notes**:

* Added stable core keywords that are always included before category tails.
* Added deterministic date-seeded rotation for balanced all-category scans and focused category scans.
* Added whitespace normalization, case-insensitive dedupe, selected counts, and rotated-out counts.

**Files Changed**:

* `scripts/extensions/trend-finder/sources/keyword-packs.ts` - added stable core, seeded rotation, dedupe, and window resolution.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/tasks.md` - marked T006 complete and updated progress.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/implementation-notes.md` - recorded task details.

**BQC Fixes**:

* State freshness on re-entry: keyword windows are recomputed from `generatedAt` for each run instead of cached mutable state.

***

### Task T005 - Create keyword contracts, categories, parser, and caps

**Started**: 2026-06-14 13:46 **Completed**: 2026-06-14 13:47 **Duration**: 1 minute

**Notes**:

* Added source-side keyword contracts and the pure `keyword-packs.ts` module.
* Added reviewed category packs, `balanced`/`focused` mode parsing, script-side env keys, invalid-input fallback warnings, and target schema validation.
* Added source cap summary structures that preserve spend labels and do not expose raw Actor inputs.

**Files Changed**:

* `scripts/extensions/trend-finder/sources/types.ts` - added keyword scan, target, window, coverage, and cap contracts.
* `scripts/extensions/trend-finder/sources/keyword-packs.ts` - added reviewed categories, mode/category parsing, env fallback, target validation, and source cap helpers.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/tasks.md` - marked T005 complete and updated progress.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/implementation-notes.md` - recorded task details.

**BQC Fixes**:

* Trust boundary enforcement: invalid modes/categories fail closed to balanced scan with explicit warnings.
* Error information boundaries: cap summaries expose source labels/counts only, not raw Actor input or private identifiers.

***

### Task T004 - Inspect Trends-Finderz keyword references

**Started**: 2026-06-14 13:43 **Completed**: 2026-06-14 13:46 **Duration**: 3 minutes

**Notes**:

* Reviewed Trends-Finderz category, keyword-pack, scan-limit, rotation, core-keyword, and coverage summary references.
* Selected portable deterministic behavior only: whitespace normalization, case-insensitive dedupe, date-seeded tail rotation, stable core keywords, per-source caps, and ready/review/thin coverage derivation.
* Kept this session to `balanced` and `focused` modes as specified; Trends-Finderz `deep` mode and extra keyword inputs stay out of scope.
* Confirmed no external dependency or network behavior is needed for keyword compilation.

**Files Changed**:

* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/tasks.md` - marked T004 complete and updated progress.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/implementation-notes.md` - recorded portable behavior choices.

**BQC Fixes**:

* Contract alignment: constrained imported behavior to the session-approved mode contract (`balanced` and `focused`) instead of inheriting unsupported modes.

***

### Task T003 - Inspect current source declarations and eligible fields

**Started**: 2026-06-14 13:39 **Completed**: 2026-06-14 13:43 **Duration**: 4 minutes

**Notes**:

* Read the current Apify declaration list and setup target declarations.
* Mapped eligible keyword targets to reviewed query-like fields only: `reddit-ai-discussions.query`, `arxiv-ai-papers.query`, `producthunt-ai-launches.searchTerms`, `youtube-ai-creator-videos.searchQueries`, `huggingface-ai-papers.searchQuery`, `huggingface-ai-models.query`, and `google-ai-news.q`.
* Excluded GitHub `language`/`since`, RSS `feedUrls`, subreddit-feed `subreddits`/`sort`, Product Hunt `topics`/dates, locale fields, sorting, pagination, and other non-query targets from keyword compilation.
* Captured current source caps and charge ceilings for later enforcement.

**Files Changed**:

* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/tasks.md` - marked T003 complete and updated progress.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/implementation-notes.md` - recorded eligible field map.

**BQC Fixes**:

* Trust boundary enforcement: narrowed source injection scope to reviewed query-like setup targets before implementation (`scripts/extensions/trend-finder/sources/apify-source-config.ts`).

***

### Task T002 - Record keyword-pack compliance review stance

**Started**: 2026-06-14 13:36 **Completed**: 2026-06-14 13:39 **Duration**: 3 minutes

**Notes**:

* Added the Phase 28 keyword-pack review gate before changing collector behavior.
* Named the only reviewed keyword target fields: `query`, `q`, `searchQuery`, `searchTerms`, and `searchQueries`.
* Preserved the no-free-text and no raw Actor-input-editor rule.
* Documented script-side mode selection, cost-neutral caps, cloned runtime inputs, and browser-safe trace boundaries.

**Files Changed**:

* `docs/sources/apify-source-onboarding.md` - added Phase 28 keyword-pack review section.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/tasks.md` - marked T002 complete and updated progress.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/implementation-notes.md` - recorded task details.

**BQC Fixes**:

* Trust boundary enforcement: documented fail-closed reviewed-field injection and browser-safe output boundaries before source input code changes (`docs/sources/apify-source-onboarding.md`).

***

### Task T001 - Verify prerequisites and compliance gate

**Started**: 2026-06-14 13:34 **Completed**: 2026-06-14 13:36 **Duration**: 2 minutes

**Notes**:

* Ran deterministic project analysis and confirmed current session `phase28-session13-keyword-packs-rotation-and-coverage`.
* Confirmed required phase 24 and phase 28 dependency sessions are listed as completed in spec-system state.
* Confirmed environment prerequisites pass and repo-local Bun tools provide TypeScript and Vitest.
* Confirmed source input changes are compliance-gated in the session PRD before collector behavior changes.

**Files Changed**:

* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/tasks.md` - marked T001 complete and updated progress.
* `.spec_system/specs/phase28-session13-keyword-packs-rotation-and-coverage/implementation-notes.md` - recorded verification details.

***

## Task Log

### 2026-06-14 - Session Start

**Environment verified**:

* [x] Prerequisites confirmed
* [x] Tools available through repo-local Bun scripts
* [x] Directory structure ready

***


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