> 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/phase29-session11-industry-events-rollup/implementation-notes.md). # Implementation Notes **Session ID**: `phase29-session11-industry-events-rollup` **Started**: 2026-06-21 01:01 **Last Updated**: 2026-06-21 01:39 *** ## Session Progress | Metric | Value | | ------------------- | --------- | | Tasks Completed | 21 / 21 | | Estimated Remaining | 0 minutes | | Blockers | 0 | *** ## Task Log ### 2026-06-21 - Session Start **Environment verified**: * [x] Prerequisites confirmed * [x] Tools available * [x] Directory structure ready *** ### Task T001 - Verify session state and scope **Started**: 2026-06-21 01:01 **Completed**: 2026-06-21 01:01 **Duration**: 1 minute **Notes**: * Ran the spec-system analyzer and confirmed active session `phase29-session11-industry-events-rollup`. * Confirmed Phase 29 is in progress and Session 04 is listed in completed sessions. * Read the Session 11 PRD stub and confirmed it matches the active implementation scope: existing RSS and Google News evidence only, two-publisher rule, deterministic fallback, and no new source boundary. **Files Changed**: * `.spec_system/specs/phase29-session11-industry-events-rollup/implementation-notes.md` - Created implementation progress log. * `.spec_system/specs/phase29-session11-industry-events-rollup/tasks.md` - Marked T001 complete. *** ### Task T002 - Inspect existing implementation paths **Started**: 2026-06-21 01:01 **Completed**: 2026-06-21 01:02 **Duration**: 1 minute **Notes**: * Inspected RSS and Google News normalizers and confirmed both reviewed news paths populate `sourceLocal.entityKind: "publisher"` with public metadata. * Inspected the Session 04 corroboration helper and confirmed entity derivation prefers source-local identity before fallbacks. * Inspected `demand-clusters.ts` for deterministic clustering, fallback copy, analyst merge, and bounded projection patterns. * Inspected collector assembly and identified the post-topic, pre-payload-validation insertion point near demand clusters and run narratives. * Inspected schema defaults, live view model projection, static Brief export/render/QA paths, and payload-size branch reporting. * Read ADR 0002 and confirmed the accepted fallback approach remains dependency-free deterministic token/vector-style grouping, not a new runtime dependency. **Files Changed**: * `.spec_system/specs/phase29-session11-industry-events-rollup/tasks.md` - Marked T002 complete. * `.spec_system/specs/phase29-session11-industry-events-rollup/implementation-notes.md` - Logged inspected paths and implementation constraints. *** ### Task T005 - Add industry event schema branch **Started**: 2026-06-21 01:02 **Completed**: 2026-06-21 01:03 **Duration**: 1 minute **Notes**: * Added `TrendIndustryEvent` status, provenance, reason-code, limit, schema, and type exports. * Added legacy-safe `industryEvents: []` parsing and empty-data defaults. * Added schema validation so industry events can cite only known evidence IDs and related topic IDs. * Added `industryEvents` to required report-derived field shape checking so collector closeout proves the branch is present. **Files Changed**: * `src/extensions/trend-finder/schema.ts` - Added constants, schema, type, root branch, validations, and defaults. * `scripts/extensions/trend-finder/required-derived-fields.ts` - Added required derived branch shape for `industryEvents`. **BQC Fixes**: * Contract alignment: Added root-branch defaults and known-ID validation to prevent stale payloads or unknown citations from crossing into browser/static surfaces. *** ### Task T004 - Extend analyst industry event contracts **Started**: 2026-06-21 01:03 **Completed**: 2026-06-21 01:04 **Duration**: 1 minute **Notes**: * Added optional industry event brief candidates to analyst input and request payloads. * Added optional analyst output rows keyed by known event IDs and cited evidence IDs. * Added validation for unknown event IDs and event-candidate evidence IDs. * Added merge helper that keeps deterministic fallback summaries unless an AI summary is schema-valid and citation-valid. **Files Changed**: * `scripts/lib/ai-runtime/trend-analyst.ts` - Added input/output schemas, request serialization, validation, logging summaries, and merge helper for industry event briefs. **BQC Fixes**: * Trust boundary enforcement: AI output is rejected if it references unknown event IDs or evidence IDs before it can affect generated payload copy. * Failure path completeness: Invalid or unavailable AI briefs degrade to deterministic fallback summaries through the merge helper. *** ### Task T003 - Create industry event helper contract **Started**: 2026-06-21 01:04 **Completed**: 2026-06-21 01:05 **Duration**: 1 minute **Notes**: * Created `industry-events.ts` with schema-validated input, derivation states, warning codes, row bounds, candidate bounds, text tokenization, deterministic sorting, and unavailable output on invalid input. * Exposed `buildIndustryEvents` and `buildIndustryEventBriefCandidates` for collector and analyst integration. **Files Changed**: * `scripts/extensions/trend-finder/industry-events.ts` - Added industry-event helper contract and base derivation pipeline. **BQC Fixes**: * Trust boundary enforcement: The helper validates evidence, topics, sources, and analyst briefs with existing Zod schemas before deriving browser payload rows. * Failure path completeness: Invalid helper input returns an explicit unavailable result with warning details instead of throwing partial rows. *** ### Task T006 - Add publisher identity extraction **Started**: 2026-06-21 01:04 **Completed**: 2026-06-21 01:05 **Duration**: 1 minute **Notes**: * Added publisher identity resolution that prefers `sourceLocal.entityKind: "publisher"` and uses the Session 04 entity-evidence helper for reviewed keys. * Added public URL hostname fallback only when source-local publisher metadata is absent. * Rejected local/private/Google-hosted fallback hosts and dropped evidence without usable publisher identity. **Files Changed**: * `scripts/extensions/trend-finder/industry-events.ts` - Added publisher identity extraction and fallback handling. **BQC Fixes**: * Trust boundary enforcement: Publisher identity is accepted only from reviewed source-local publisher metadata or sanitized public host fallback. * Error information boundaries: Fallback logic suppresses private/local hosts instead of emitting them to event rows. *** ### Task T008 - Implement reviewed news evidence selection **Started**: 2026-06-21 01:04 **Completed**: 2026-06-21 01:05 **Duration**: 1 minute **Notes**: * Selected only `rss-ai-news` and `google-ai-news` evidence with news or unknown source roles. * Added deterministic candidate sorting by recency, relevance, and evidence ID. * Added explicit derivation states and empty/unavailable warnings for no reviewed news evidence or invalid input. **Files Changed**: * `scripts/extensions/trend-finder/industry-events.ts` - Added reviewed-news filtering, ordering, and stateful result handling. **BQC Fixes**: * Contract alignment: Source selection is restricted to the two reviewed news source IDs named in the spec. *** ### Task T009 - Implement deterministic clustering **Started**: 2026-06-21 01:04 **Completed**: 2026-06-21 01:05 **Duration**: 1 minute **Notes**: * Added shared title/entity token clustering with an 80-candidate bound. * Added citation limits, related-topic matching, deterministic event IDs, and stable event ordering. **Files Changed**: * `scripts/extensions/trend-finder/industry-events.ts` - Added clustering, related-topic projection, citation selection, and deterministic IDs. **BQC Fixes**: * Contract alignment: Event IDs, citations, and related topic IDs are deterministic and bounded by exported schema limits. *** ### Task T010 - Enforce two-publisher gate **Started**: 2026-06-21 01:04 **Completed**: 2026-06-21 01:05 **Duration**: 1 minute **Notes**: * Suppressed clusters with fewer than two independent publisher identities before payload row creation. * Selected citations across distinct publishers first, then filled remaining bounded citations. * Added warnings that report how many single-publisher candidates were suppressed. **Files Changed**: * `scripts/extensions/trend-finder/industry-events.ts` - Added independent publisher gate and suppression accounting. **BQC Fixes**: * Trust boundary enforcement: Single-publisher event candidates cannot publish to browser or static Brief payload rows. *** ### Task T007 - Add industry event view model **Started**: 2026-06-21 01:05 **Completed**: 2026-06-21 01:06 **Duration**: 1 minute **Notes**: * Added industry event view-model interfaces for rows, reason labels, empty state, related topics, and cited evidence links. * Added `getIndustryEventsViewModel` with deterministic ordering and existing evidence-link projection. * Added labels and tones for AI/fallback provenance and event reason codes. **Files Changed**: * `src/extensions/trend-finder/view-model.ts` - Added industry event view/export model types and projection helper. **BQC Fixes**: * Contract alignment: Event citations are projected through existing evidence-link behavior so missing or non-public evidence URLs degrade consistently. * Accessibility and platform compliance: Added an aria label per event row for downstream UI/static consumers. *** ### Task T011 - Merge validated AI event summaries **Started**: 2026-06-21 01:06 **Completed**: 2026-06-21 01:07 **Duration**: 1 minute **Notes**: * Added analyst-side industry event candidates and brief output validation. * Added fallback merge behavior that accepts AI summaries only for known event IDs and event-candidate evidence IDs. * Connected collector-prepared event candidates to the analyst request and final event derivation. **Files Changed**: * `scripts/lib/ai-runtime/trend-analyst.ts` - Added industry event brief schemas, request serialization, validation, and merge helper. * `scripts/extensions/trend-finder/industry-events.ts` - Merged accepted analyst summaries into event rows. * `scripts/extensions/trend-finder/collector.ts` - Passed event candidates into analysis and analyst summaries into final derivation. **BQC Fixes**: * Trust boundary enforcement: AI summaries cannot cite unknown event IDs or evidence IDs. * Failure path completeness: Invalid analyst output forces deterministic fallback without blocking the rest of Trend Finder output. *** ### Task T012 - Wire collector industry event derivation **Started**: 2026-06-21 01:06 **Completed**: 2026-06-21 01:07 **Duration**: 1 minute **Notes**: * Built preliminary deterministic industry event candidates before AI analysis. * Rebuilt final industry events after scored topics and demand clusters, before browser payload validation. * Added duplicate assembly suppression, safe empty fallback on derivation failure, trace logging, and warning mapping. * Added `industryEvents` to collector payloads and fixture data. **Files Changed**: * `scripts/extensions/trend-finder/collector.ts` - Wired preliminary and final industry event derivation into the collector. * `src/extensions/trend-finder/fixtures.ts` - Added empty `industryEvents` branches to typed fixtures. **BQC Fixes**: * Duplicate action prevention: Collector guards against repeated industry-event assembly in a run. * Failure path completeness: Derivation exceptions emit warnings and publish an empty branch instead of partial rows. *** ### Task T013 - Project industry events into Brief models **Started**: 2026-06-21 01:07 **Completed**: 2026-06-21 01:08 **Duration**: 1 minute **Notes**: * Added industry event rows to the compact Brief export document and Markdown output. * Added industry event rows to the static Brief report contract and projection with bounded publisher labels, related topics, and cited evidence details. * Reused existing view-model evidence links and static public URL filtering. **Files Changed**: * `src/extensions/trend-finder/brief-export-model.ts` - Added industry event export document rows and Markdown section. * `scripts/extensions/trend-finder/static-brief-export.ts` - Added static Brief schema and projection for industry events. **BQC Fixes**: * Contract alignment: Static and compact Brief exports now share the same view-model projection semantics. * Error information boundaries: Citation URLs are passed through existing safe public URL filters before export. *** ### Task T014 - Render static Brief industry events **Started**: 2026-06-21 01:07 **Completed**: 2026-06-21 01:08 **Duration**: 1 minute **Notes**: * Added a static Brief `industry-events` section between demand centers and top opportunities. * Rendered compact event rows with publisher count, provenance, reason labels, publisher details, related topics, citations, and empty state. **Files Changed**: * `scripts/extensions/trend-finder/static-brief-renderer.ts` - Added industry event renderer and section marker. **BQC Fixes**: * Accessibility and platform compliance: Rendered event cards include aria labels from the view model. * Error information boundaries: Renderer filters citation URLs again before emitting links. *** ### Task T015 - Add static Brief QA coverage for industry events **Started**: 2026-06-21 01:07 **Completed**: 2026-06-21 01:08 **Duration**: 1 minute **Notes**: * Added `industry-events` to required rendered static Brief section markers and labels. * Added report-structure checks for missing projected event rows and missing citation details. * Confirmed the existing private-field and private-string scans apply to the new report, HTML, and manifest paths. **Files Changed**: * `scripts/extensions/trend-finder/static-brief-qa.ts` - Added section marker and industry event structure checks. **BQC Fixes**: * Failure path completeness: Static Brief QA now blocks exports if event data exists but no rows or citations are projected. *** ### Task T016 - Add payload-size branch tracking **Started**: 2026-06-21 01:08 **Completed**: 2026-06-21 01:09 **Duration**: 1 minute **Notes**: * Added `data.industryEvents` to the always-visible payload-size branch list. **Files Changed**: * `scripts/extensions/trend-finder/measure-payload-size.ts` - Added industry event branch tracking. **BQC Fixes**: * Contract alignment: Payload-size reports now expose the new browser branch even when it is below the default size threshold. *** ### Task T017 - Document industry event behavior **Started**: 2026-06-21 01:09 **Completed**: 2026-06-21 01:10 **Duration**: 1 minute **Notes**: * Documented the industry-events collector step, source boundary, two-publisher gate, AI fallback behavior, and privacy exclusions. * Updated UI surface docs for Brief/static Brief behavior and empty states. **Files Changed**: * `docs/extensions/trend-finder-pipeline.md` - Added industry-events pipeline and implementation map documentation. * `docs/extensions/trend-finder-ui-surfaces.md` - Added Brief/static Brief industry-event surface behavior. **BQC Fixes**: * Contract alignment: Documentation describes implemented source boundaries and does not claim new sources, transcripts, article bodies, or scoring changes. *** ### Task T018 - Add industry event unit tests **Started**: 2026-06-21 01:21 **Completed**: 2026-06-21 01:25 **Duration**: 4 minutes **Notes**: * Added focused helper tests for reviewed news-source filtering, source-local publisher identity, public host fallback, private/Google host rejection, single-publisher suppression, two-publisher publication, row bounds, deterministic ordering, analyst summary merge rejection, brief candidate projection, and invalid-input unavailable state. * Ran the new focused helper suite successfully. **Files Changed**: * `scripts/extensions/trend-finder/__tests__/industry-events.test.ts` - Added coverage for the industry-events helper public contract. * `src/extensions/trend-finder/view-model.ts` - Hardened industry-event sorting so missing or malformed dates compare deterministically. **BQC Fixes**: * Contract alignment: Tests prove event rows publish only from reviewed RSS/Google News evidence and reject unsupported publisher identity fallbacks. * Failure path completeness: Tests prove invalid helper input returns an explicit unavailable state with a warning. *** ### Task T019 - Add collector, analyst, and schema tests **Started**: 2026-06-21 01:25 **Completed**: 2026-06-21 01:29 **Duration**: 4 minutes **Notes**: * Added collector integration coverage proving industry events are derived from the existing `rss-ai-news` and `google-ai-news` direct source IDs without source widening, passed into analyst candidates, merged back into final payload rows, and emitted as valid `industryEvents`. * Added collector safe-fallback coverage for final derivation failure, asserting an empty branch and sanitized warning behavior. * Added analyst tests for industry-event candidate request data, validator rejection of unknown event/evidence references, and deterministic fallback merge behavior. * Added schema tests for legacy/default `industryEvents: []`, valid event rows, unknown citation/topic rejection, and citation bounds. * Ran the focused collector, analyst, and schema suites successfully. **Files Changed**: * `scripts/extensions/trend-finder/__tests__/collector.test.ts` - Added collector industry-event integration and warning-fallback tests. * `scripts/lib/ai-runtime/__tests__/trend-analyst.test.ts` - Added industry-event analyst request, validation, and merge tests. * `src/lib/__tests__/trend-finder-schema.test.ts` - Added industry-event schema default and reference validation tests. **BQC Fixes**: * Trust boundary enforcement: Tests prove invalid analyst industry-event references are rejected before provider output is accepted. * Failure path completeness: Tests prove collector final derivation failures degrade to warnings plus an empty branch. *** ### Task T020 - Add view-model, static Brief, QA, and payload-size tests **Started**: 2026-06-21 01:29 **Completed**: 2026-06-21 01:34 **Duration**: 5 minutes **Notes**: * Added view-model coverage for industry-event labels, deterministic ordering with missing dates, related-topic links, cited evidence links, and empty-state copy. * Added static Brief projection coverage for bounded industry-event rows and privacy-clean citations. * Added renderer coverage for industry-event escaping, rendered section markup, citation details, and empty-state copy. * Added static Brief QA coverage for industry-event rows that omit cited evidence or contain private-looking strings. * Added payload-size CLI coverage proving `data.industryEvents` remains visible even below high thresholds. * Ran the focused view/static/payload suites successfully. **Files Changed**: * `src/extensions/trend-finder/__tests__/view-model.test.ts` - Added industry-event view-model coverage. * `scripts/extensions/trend-finder/__tests__/static-brief-export.test.ts` - Added static projection and bounded citation assertions. * `scripts/extensions/trend-finder/__tests__/static-brief-renderer.test.ts` - Added rendered section, escaping, citation, and empty-state assertions. * `scripts/extensions/trend-finder/__tests__/static-brief-qa.test.ts` - Added blocking QA coverage for invalid industry-event rows. * `scripts/extensions/trend-finder/__tests__/measure-payload-size.test.ts` - Added payload-size branch visibility coverage. **BQC Fixes**: * Error information boundaries: Renderer and QA tests prove private-looking strings are escaped or blocked in static output. * Contract alignment: Payload-size and static Brief tests prove the new branch is projected, bounded, and monitored. *** ### Task T021 - Run final verification **Started**: 2026-06-21 01:34 **Completed**: 2026-06-21 01:39 **Duration**: 5 minutes **Notes**: * Ran focused Vitest coverage for industry-events helper, collector, analyst, schema, required derived fields, view model, static Brief export, renderer, QA, and payload-size tracking. * Ran both script and app TypeScript typechecks. * Ran payload-size reporting against `src/data/live-data.example.json` and confirmed `data.industryEvents` is reported as an always-visible branch, including legacy missing-branch payloads. * Ran static Brief privacy/QA coverage through the focused static Brief test suites. * Ran ASCII validation across changed session source, test, doc, and spec files; no non-ASCII matches were found. * Ran `git diff --check`; no whitespace errors were found. **Files Changed**: * `scripts/extensions/trend-finder/measure-payload-size.ts` - Added explicit missing-root-row reporting for always-included payload branches discovered during payload report verification. * `.spec_system/specs/phase29-session11-industry-events-rollup/tasks.md` - Marked final verification and session checklist complete. * `.spec_system/specs/phase29-session11-industry-events-rollup/implementation-notes.md` - Logged final verification results. **BQC Fixes**: * Contract alignment: Final payload-size verification now proves `data.industryEvents` appears in reports even for legacy payloads that omit the branch. * Error information boundaries: Static Brief QA/privacy tests and ASCII validation completed without private-string or encoding findings. --- # Agent Instructions This documentation is published with GitBook. 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