> 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-session11-search-palette-and-deterministic-embeddings/tasks.md). # Task Checklist **Session ID**: `phase28-session11-search-palette-and-deterministic-embeddings` **Total Tasks**: 25 **Estimated Duration**: 3-4 hours **Created**: 2026-06-14 *** ## Legend * `[x]` = Completed * `[ ]` = Pending * `[P]` = Parallelizable (can run with other \[P] tasks) * `[SNNMM]` = Session reference (NN=phase number, MM=session number) * `TNNN` = Task ID *** ## Progress Summary | Category | Total | Done | Remaining | | -------------- | ------ | ------ | --------- | | Setup | 3 | 3 | 0 | | Foundation | 7 | 7 | 0 | | Implementation | 10 | 10 | 0 | | Testing | 5 | 5 | 0 | | **Total** | **25** | **25** | **0** | *** ## Setup (3 tasks) Initial configuration and environment preparation. * [x] T001 \[S2811] Verify Session 11 prerequisites, ADR 0002 status, and no-new-dependency boundary (`.spec_system/PRD/phase_28/session_11_search_palette_and_deterministic_embeddings.md`) * [x] T002 \[S2811] Inspect Trends-Finderz search/vector reference files and map only portable concepts into Trend Finder paths (`EXAMPLES/trends-finderz/lib/search/semantic-vector.ts`) * [x] T003 \[S2811] Confirm current Trend Finder palette targets, hash navigation, and payload safety constraints before editing (`src/extensions/trend-finder/views/trends-view.tsx`) *** ## Foundation (7 tasks) Core structures and base implementations. * [x] T004 \[S2811] \[P] Create shared feature extraction and lexical scoring primitives with bounded token, synonym, n-gram, and vector contracts (`src/lib/trend-text-vector-features.ts`) * [x] T005 \[S2811] \[P] Create script-side SHA-256 feature-hash vectors, cosine helpers, and similarity grouping with deterministic thresholds and fallback-safe empty vectors (`scripts/lib/ai-runtime/text-vectors.ts`) * [x] T006 \[S2811] \[P] Create browser Web Crypto text-vector helper with pure lexical fallback, stale-query protection hooks, and no Node-only imports (`src/extensions/trend-finder/text-vectors.ts`) * [x] T007 \[S2811] Create Trend Finder search index builder over parsed payload text with bounded results, validated filters, deterministic ordering, and no vector serialization (`src/extensions/trend-finder/search-index.ts`) * [x] T008 \[S2811] Update theme rollup fallback to use similarity grouping after analyst-label validation and before keyword-overlap fallback (`scripts/extensions/trend-finder/theme-rollups.ts`) * [x] T009 \[S2811] Update deterministic fallback topic extraction to cluster similar evidence titles instead of grouping by source, with bounded group sizes and deterministic tie-breakers (`scripts/extensions/trend-finder/topics.ts`) * [x] T010 \[S2811] Amend ADR 0002 with the shipped feature-hash decision, rejected model dependency, and no-vector-payload consequence (`docs/adr/0002-trend-finder-embedding-fallback-clustering.md`) *** ## Implementation (10 tasks) Main feature implementation. * [x] T011 \[S2811] Wire collector similarity rollups and fallback clustering trace summaries with explicit warnings and no published vector arrays (`scripts/extensions/trend-finder/collector.ts`) * [x] T012 \[S2811] Add search-safe labels and navigation helper exports for palette-owned topic, source, evidence, and angle results (`src/extensions/trend-finder/view-model.ts`) * [x] T013 \[S2811] Create Trend Finder search palette UI with Command/Dialog primitives, scope controls, accessible labels, focus management, and keyboard input support (`src/extensions/trend-finder/components/trend-search-palette.tsx`) * [x] T014 \[S2811] Implement palette result selection and route/hash navigation with duplicate-trigger prevention while navigation is in-flight (`src/extensions/trend-finder/components/trend-search-palette.tsx`) * [x] T015 \[S2811] Implement palette loading, empty, error, offline, and lexical-fallback states without fetching new remote data (`src/extensions/trend-finder/components/trend-search-palette.tsx`) * [x] T016 \[S2811] Mount palette state and Ctrl/Cmd+K plus slash shortcut handling in the Trend Finder shell with cleanup on scope exit for all event listeners (`src/extensions/trend-finder/client.tsx`) * [x] T017 \[S2811] Add fixture aliases, evidence titles, source labels, creator angles, and hidden-topic rows for search and payload-safety coverage (`src/extensions/trend-finder/fixtures.ts`) * [x] T018 \[S2811] Update UI surface documentation for palette behavior, scope filters, shortcut handling, and browser-only ranking boundary (`docs/extensions/trend-finder-ui-surfaces.md`) * [x] T019 \[S2811] Update runtime/provenance documentation for deterministic feature-hash clustering, lexical fallback, and AI-mode clustering non-regression (`docs/extensions/trend-finder-runtime-and-provenance.md`) * [x] T020 \[S2811] Verify generated-data payload projection rejects vector arrays and private strings before search documents are built (`src/lib/__tests__/trend-finder-schema.test.ts`) *** ## Testing (5 tasks) Verification and quality assurance. * [x] T021 \[S2811] \[P] Add shared and script vector tests for normalization, determinism, L2 normalization, cosine thresholds, grouping, and lexical fallback (`scripts/lib/ai-runtime/__tests__/text-vectors.test.ts`) * [x] T022 \[S2811] \[P] Add search index tests for aliases, sources, evidence, angles, scopes, bounded results, deterministic ordering, and no-vector-payload ranking (`src/extensions/trend-finder/__tests__/search-index.test.ts`) * [x] T023 \[S2811] \[P] Add palette component tests for keyboard open/close, input focus, shortcut suppression, scope changes, empty/error states, Enter selection, and navigation (`src/extensions/trend-finder/components/__tests__/trend-search-palette.test.tsx`) * [x] T024 \[S2811] Extend theme, topic, and collector tests for similarity grouping, analyst precedence, lexical fallback, and AI-mode clustering non-regression (`scripts/extensions/trend-finder/__tests__/theme-rollups.test.ts`) * [x] T025 \[S2811] Run focused tests, type checks, and ASCII validation for all session files, documenting any unrelated repo-wide failures (`package.json`) *** ## Completion Checklist Before marking session complete: * [x] All tasks marked `[x]` * [x] All tests passing * [x] All files ASCII-encoded * [x] implementation-notes.md updated * [x] Ready for the validate workflow step *** ## Next Steps Run the implement workflow step to begin AI-led implementation. --- # Agent Instructions This documentation is published with GitBook. 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