> 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/phase33-session03-harden-trend-finder-projection/implementation-notes.md).

# Implementation Notes

**Session ID**: `phase33-session03-harden-trend-finder-projection` **Started**: 2026-06-25 04:57 **Last Updated**: 2026-06-25 05:21

***

## Session Progress

| Metric              | Value     |
| ------------------- | --------- |
| Tasks Completed     | 16 / 16   |
| Estimated Remaining | 0 minutes |
| Blockers            | 0         |

***

## Task Log

### 2026-06-25 - Session Start

**Environment verified**:

* [x] Prerequisites confirmed
* [x] Tools available
* [x] Directory structure ready

**Environment evidence**:

* Command/check: `bash .spec_system/scripts/analyze-project.sh --json`
  * Result: PASS - current session resolved to `phase33-session03-harden-trend-finder-projection`; session directory exists with `spec.md` and `tasks.md`; repository is not a monorepo.
* Command/check: `bash .spec_system/scripts/check-prereqs.sh --json --env`
  * Result: PASS - `.spec_system`, `jq`, and `git` available; workspace monorepo check skipped as expected.
* Command/check: `bash .spec_system/scripts/check-prereqs.sh --json --tools "bun"`
  * Result: PASS - Bun 1.3.14 available.

***

### Task T001 - Verify Session 01 and Session 02 evidence, count deltas, and projection gaps

**Started**: 2026-06-25 04:57 **Completed**: 2026-06-25 04:58 **Duration**: 1 minute

**Notes**:

* Confirmed Session 01 selected a real local Trend Finder input with populated public URLs, source metadata, run narratives, movement analyses, industry events, and sanitized Engine Replay state.
* Confirmed Session 02 intentionally froze the first public fixture while leaving Trend Finder projection hardening to this session.
* Corrected the count-only inspection path from a shallow `.trendFinder` probe to the actual `extensions.items[] | select(.id=="trend-finder").data` shape before recording evidence.

**Files Changed**:

* `.spec_system/specs/phase33-session03-harden-trend-finder-projection/implementation-notes.md` - Recorded prior-session evidence and projection-gap verification.

**Verification**:

* Command/check: `sed -n '1,260p' .spec_system/specs/phase33-session01-capture-local-demo-runs/implementation-notes.md`
  * Result: PASS - Session 01 notes record a populated local Trend Finder run, sanitized Engine Replay state, and a public snapshot gap for trace and advanced artifacts.
  * Evidence: Count summaries show 9 local topics, 199 evidence rows, 9 movement analyses, 1 run narrative, 5 industry events, and sanitized Engine Replay with 5 sections.
* Command/check: `sed -n '1,320p' .spec_system/specs/phase33-session02-freeze-public-fixtures/implementation-notes.md`
  * Result: PASS - Session 02 notes record generated fixture counts and explicitly hand off Trend Finder projection hardening to Session 03.
  * Evidence: Fixture counts show 8 public topics, 16 evidence rows, 0 movement analyses, 0 run narratives, 0 industry events, and missing public Engine Replay state.
* Command/check: `jq -r 'def tf: .extensions.items[] | select(.id=="trend-finder") | .data; [...] | .[]' src/data/live-data.json demo-website/public/demo/live-data.snapshot.json`
  * Result: PASS - Count-only inspection confirms current local input has populated advanced Trend Finder data while the public fixture omits it.
  * Evidence: Local counts: topics 9, evidence 199, movement 9, narratives 1, events 5, trace state sanitized, trace sections 5. Fixture counts: topics 8, evidence 16, movement 0, narratives 0, events 0, trace state null, trace sections 0.
* UI product-surface check: N/A - No user-facing route was changed.
* UI craft check: N/A - No UI was changed.

***

### Task T002 - Inspect current Trend Finder exporter, parser, Engine Replay schema, and focused tests

**Started**: 2026-06-25 04:58 **Completed**: 2026-06-25 04:59 **Duration**: 1 minute

**Notes**:

* Located the current Trend Finder projection boundary in `projectTrendFinderData()`, which currently retains topics, evidence, sources, watchlist, and prediction/retro summary but drops Engine Replay, collection health, movement analyses, run narratives, demand clusters, industry events, and backtest summary.
* Confirmed `parseTrendFinderData()` is the authoritative parser and returns empty data on invalid projected shape, so final projection needs positive parse/count assertions.
* Confirmed schema cross-reference checks reject demand clusters and industry events with missing topic/evidence references, and transform run narratives by filtering narratives whose retained topic/evidence references are incomplete.
* Confirmed Engine Replay has bounded schema arrays and valid states: `missing`, `sanitized`, `fixture-demo`, `stale`, `disabled`, and `error`.
* Confirmed existing tests only use a minimal Trend Finder fixture; this session needs populated fixture coverage for retained artifacts and privacy regressions.

**Files Changed**:

* `.spec_system/specs/phase33-session03-harden-trend-finder-projection/implementation-notes.md` - Recorded exporter, parser, Engine Replay schema, and test inspection evidence.

**Verification**:

* Command/check: `rg -n "projectTrendFinderData|engineTrace|parseTrendFinderData|trendFinderFieldPolicy|PagesDemoSnapshotError|scrubPublicValue" scripts/lib/pages-demo-snapshot.ts`
  * Result: PASS - Identified projection, privacy scrub, metadata count, field policy, and error boundaries in the exporter.
  * Evidence: `projectTrendFinderData()` starts near line 1163; count summary records Engine Replay counts near line 1533; manifest field policy starts near line 1612.
* Command/check: `sed -n '880,1255p' scripts/lib/pages-demo-snapshot.ts`
  * Result: PASS - Current projection logic inspected before editing.
  * Evidence: Existing projection bounded topics to 8, evidence to 16, sources to 12, and did not include Engine Replay or advanced Trend Finder artifacts.
* Command/check: `sed -n '3320,4015p' src/extensions/trend-finder/schema.ts`
  * Result: PASS - Parser, provenance schema, artifact limits, and cross-reference checks inspected.
  * Evidence: Valid provenance states include `fixture-demo`; limits include run narratives 6, demand clusters 6, industry events 6, movement analyses 25, predictions/retros 10, and story log 50.
* Command/check: `sed -n '574,620p' src/extensions/trend-finder/engine-trace.ts && sed -n '1350,1508p' src/extensions/trend-finder/engine-trace.ts`
  * Result: PASS - Engine Replay public trace shape and validation behavior inspected.
  * Evidence: Trace schema exposes run metrics, evidence counts, collection health, runtime summary, sources, topics, watchlist, artifacts, decisions, narrations, warnings, notes, and sections.
* Command/check: `sed -n '1,460p' scripts/lib/__tests__/pages-demo-snapshot.test.ts`
  * Result: PASS - Focused snapshot exporter tests inspected.
  * Evidence: Existing tests assert public-safe projection, privacy issue detection, deterministic dry runs, atomic writes, duplicate target rejection, and raw input non-copying.
* UI product-surface check: N/A - No user-facing route was changed.
* UI craft check: N/A - No UI was changed.

***

### Task T003 - Run a baseline dry-run snapshot count review before changing projection behavior

**Started**: 2026-06-25 04:59 **Completed**: 2026-06-25 05:00 **Duration**: 1 minute

**Notes**:

* Ran the required baseline dry-run before modifying exporter behavior.
* Confirmed the current exporter passes privacy scan and writes no files in dry-run mode.
* Confirmed baseline projected counts match the Session 02 caveat: advanced Trend Finder artifacts and Engine Replay are omitted from the current projection.

**Files Changed**:

* `.spec_system/specs/phase33-session03-harden-trend-finder-projection/implementation-notes.md` - Recorded baseline dry-run and count review evidence.

**Verification**:

* Command/check: `bun run demo:snapshot --dry-run --json`
  * Result: PASS - Dry run returned `ok: true`, `dryRun: true`, `filesWritten: []`, route coverage 24, scan status `pass`, and issue count 0.
  * Evidence: Captured at `2026-06-25T02:00:30.811Z`; source commit `39d7be05b6b8`; redaction counts included private fields 3, local paths 9, auth details 3, arrays trimmed 11, labels replaced 9.
* Command/check: `bun --eval 'import { runPagesDemoSnapshot } from "./scripts/lib/pages-demo-snapshot.ts"; ... console.log(JSON.stringify(result.manifest.countSummary.trendFinder, null, 2));'`
  * Result: PASS - Direct dry-run count review succeeded without writing files.
  * Evidence: Baseline public counts: topics 8, evidence 16, sources 12, watchlist 3, predictions 9, retrospectives 10, story log 12, demand clusters 0, industry events 0, run narratives 0, movement analyses 0, Engine Replay state null, decisions 0, sources 0, artifacts 0, sections 0, narrations 0, topics 0, watchlist 0.
* UI product-surface check: N/A - No user-facing route was changed.
* UI craft check: N/A - No UI was changed.

***

### Task T004 - Implement retained-ID selection helpers for topics, evidence, sources, and dependent artifacts

**Started**: 2026-06-25 05:00 **Completed**: 2026-06-25 05:04 **Duration**: 4 minutes

**Notes**:

* Added explicit Trend Finder retention limit constants matching the session and schema limits.
* Added retained projection state for topic, evidence, source, and lookup sets.
* Added deterministic retained-ID selection: topics first, topic-cited evidence plus same-topic reserve capped at 32, then sources selected from retained evidence capped at 12.
* Added shared record and ID filtering helpers for dependent artifact projection.

**Files Changed**:

* `scripts/lib/pages-demo-snapshot.ts` - Added retained Trend Finder projection helpers and limits.
* `.spec_system/specs/phase33-session03-harden-trend-finder-projection/implementation-notes.md` - Recorded task evidence.

**Verification**:

* Command/check: `bun run typecheck:scripts`
  * Result: PASS - Script TypeScript compilation completed with no errors.
  * Evidence: `tsc --noEmit -p tsconfig.scripts.json` exited 0 after retained-ID helper additions.
* Command/check: Targeted inspection of `selectRetainedTrendFinderProjection()` in `scripts/lib/pages-demo-snapshot.ts`
  * Result: PASS - Helper selects retained topics, evidence, and sources using deterministic input order and bounded limits.
  * Evidence: Topic cap 8, evidence cap 32, source cap 12; selected evidence starts with retained topic citations before same-topic reserve rows.
* UI product-surface check: N/A - No user-facing route was changed.
* UI craft check: N/A - No UI was changed.

**BQC Fixes**:

* Contract alignment: Added a single retained-ID contract so later projection helpers can filter dependent arrays against the same retained topic, evidence, and source sets (`scripts/lib/pages-demo-snapshot.ts`).

***

### Task T005 - Implement public-safe Trend Finder artifact projection helpers with schema-validated input and explicit error mapping

**Started**: 2026-06-25 05:04 **Completed**: 2026-06-25 05:06 **Duration**: 2 minutes

**Notes**:

* Added explicit Trend Finder schema validation at the exporter input boundary.
* Added explicit projected-output schema validation with `projection_invalid` errors.
* Added public-safe projectors for watchlist rows, movement analyses, run narratives, demand clusters, industry events, and prediction/retro/story summaries.
* Projectors scrub public values and then restore retained reference IDs from the validated source data.

**Files Changed**:

* `scripts/lib/pages-demo-snapshot.ts` - Added validation helpers, projection error mapping, and public-safe retained artifact projectors.
* `.spec_system/specs/phase33-session03-harden-trend-finder-projection/implementation-notes.md` - Recorded task evidence.

**Verification**:

* Command/check: `bun run typecheck:scripts`
  * Result: PASS - Script TypeScript compilation completed with no errors after projection helper additions.
  * Evidence: `tsc --noEmit -p tsconfig.scripts.json` exited 0.
* Command/check: Targeted inspection of `validateTrendFinderInput()` and `assertProjectedTrendFinderData()` in `scripts/lib/pages-demo-snapshot.ts`
  * Result: PASS - Invalid source or projected Trend Finder data now maps to stable `PagesDemoSnapshotError` codes with schema issue messages.
  * Evidence: Input failures use `input_invalid`; projected-output failures use `projection_invalid`.
* Command/check: Targeted inspection of retained artifact projectors in `scripts/lib/pages-demo-snapshot.ts`
  * Result: PASS - Dependent rows filter references through retained topic, evidence, and source ID sets before export.
  * Evidence: Watchlist, movement, narratives, demand clusters, industry events, and prediction/retro/story helpers were added with bounded limits.
* UI product-surface check: N/A - No user-facing route was changed.
* UI craft check: N/A - No UI was changed.

**BQC Fixes**:

* Trust boundary enforcement: Replaced silent `parseTrendFinderData()` fallback at the input boundary with explicit validation and controlled exporter errors (`scripts/lib/pages-demo-snapshot.ts`).
* Failure path completeness: Added `projection_invalid` for malformed projected Trend Finder output instead of allowing invalid or empty projected data to continue silently (`scripts/lib/pages-demo-snapshot.ts`).

***

### Task T006 - Add explicit failure behavior when sanitized source Engine Replay data would be exported as missing

**Started**: 2026-06-25 05:06 **Completed**: 2026-06-25 05:09 **Duration**: 3 minutes

**Notes**:

* Added Engine Replay projection for sanitized Trend Finder traces.
* Added explicit preservation assertion that raises `projection_invalid` if populated sanitized source trace data is omitted or projected with missing state.
* Fixed public `sourceSetup` schema drift exposed by projected-output validation: public fixture values now use schema-valid states instead of `demo-fixture`.

**Files Changed**:

* `scripts/lib/pages-demo-snapshot.ts` - Added Engine Replay preservation helpers, wired trace projection into `projectTrendFinderData()`, and fixed source setup public states.
* `.spec_system/specs/phase33-session03-harden-trend-finder-projection/implementation-notes.md` - Recorded task evidence.

**Verification**:

* Command/check: `bun run typecheck:scripts`
  * Result: PASS - Script TypeScript compilation completed with no errors after trace preservation changes.
  * Evidence: `tsc --noEmit -p tsconfig.scripts.json` exited 0.
* Command/check: `bun --eval 'import { runPagesDemoSnapshot } from "./scripts/lib/pages-demo-snapshot.ts"; ... console.log(JSON.stringify(result.manifest.countSummary.trendFinder.engineTrace, null, 2));'`
  * Result: PASS - Dry-run projection preserved sanitized Engine Replay instead of exporting it as missing.
  * Evidence: Engine Replay count summary reported state `sanitized`, decisions 10, sources 2, artifacts 6, sections 5, narrations 4, topics 8, and watchlist 3.
* Command/check: Direct projection error inspection after first trace attempt
  * Result: PASS - Projected-output validation caught invalid public `sourceSetup` states before fixture write.
  * Evidence: `fileStatus`, `credentialStatus`, and source `status` values were changed to schema-valid public values and the follow-up dry run passed.
* UI product-surface check: N/A - No user-facing route was changed.
* UI craft check: N/A - No UI was changed.

**BQC Fixes**:

* Failure path completeness: Populated sanitized Engine Replay can no longer fall through as missing; exporter throws `projection_invalid` with concrete preservation issues (`scripts/lib/pages-demo-snapshot.ts`).
* Contract alignment: Source setup public fixture states now match `TrendSourceSetupStateSchema` instead of relying on unchecked ad hoc values (`scripts/lib/pages-demo-snapshot.ts`).

***

### Task T007 - Extend Trend Finder manifest field policy and count handling for retained trace and advanced artifacts

**Started**: 2026-06-25 05:09 **Completed**: 2026-06-25 05:10 **Duration**: 1 minute

**Notes**:

* Extended the public Trend Finder count summary with a backtest aggregate section.
* Extended the manifest Trend Finder field policy to document retained collection health, movement analyses, run narratives, demand clusters, industry events, prediction story log, sanitized Engine Replay summaries, and backtest aggregate summary.

**Files Changed**:

* `scripts/lib/pages-demo-snapshot.ts` - Added backtest aggregate count-summary fields and expanded the Trend Finder manifest field policy.
* `.spec_system/specs/phase33-session03-harden-trend-finder-projection/implementation-notes.md` - Recorded task evidence.

**Verification**:

* Command/check: `bun run typecheck:scripts`
  * Result: PASS - Script TypeScript compilation completed with no errors after metadata shape updates.
  * Evidence: `tsc --noEmit -p tsconfig.scripts.json` exited 0.
* Command/check: `bun --eval 'import { runPagesDemoSnapshot } from "./scripts/lib/pages-demo-snapshot.ts"; ... console.log(JSON.stringify({engineTrace, backtestAggregate, policyIncluded}, null, 2));'`
  * Result: PASS - Dry-run manifest includes the expanded field policy and count summary shape.
  * Evidence: Engine Replay count summary reported state `sanitized`; `backtestAggregate` section exists; policy included movement analyses, run narratives, demand clusters, industry events, prediction story log, sanitized Engine Replay summaries, and backtest aggregate summary.
* UI product-surface check: N/A - No user-facing route was changed.
* UI craft check: N/A - No UI was changed.

**BQC Fixes**:

* Contract alignment: Metadata now names and counts the advanced Trend Finder fixture categories the exporter is being hardened to retain (`scripts/lib/pages-demo-snapshot.ts`).

***

### Task T008 - Wire relationship-aware limits into `projectTrendFinderData()`

**Started**: 2026-06-25 05:10 **Completed**: 2026-06-25 05:12 **Duration**: 2 minutes

**Notes**:

* Replaced independent public array slicing with retained topic/evidence/source sets in `projectTrendFinderData()`.
* Retained 8 topics and 32 evidence rows using topic-cited evidence plus same-topic reserve.
* Filtered watchlist rows, movement analyses, predictions, retros, story log rows, run narratives, and industry events against retained IDs.
* Preserved collection health and backtest aggregate summary through the public scrub boundary.
* Increased public Trend Finder ID truncation caps so evidence and event references remain exact instead of being truncated.

**Files Changed**:

* `scripts/lib/pages-demo-snapshot.ts` - Wired retained Trend Finder projection into the main exporter branch and fixed Trend Finder ID length handling.
* `.spec_system/specs/phase33-session03-harden-trend-finder-projection/implementation-notes.md` - Recorded task evidence.

**Verification**:

* Command/check: `bun run typecheck:scripts`
  * Result: PASS - Script TypeScript compilation completed with no errors after relationship-aware wiring.
  * Evidence: `tsc --noEmit -p tsconfig.scripts.json` exited 0.
* Command/check: Direct `projectLiveDataForPublicDemo()` count-only projection from `src/data/live-data.json`
  * Result: PASS - Selected local input projected without schema errors after ID length fix.
  * Evidence: Projected counts: topics 8, evidence 32, sources 2, watchlist 3, movement analyses 8, run narratives 1, industry events 5, predictions 8, retros 1, story log 50, trace state `sanitized`.
* Command/check: `bun --eval 'import { runPagesDemoSnapshot } from "./scripts/lib/pages-demo-snapshot.ts"; ... console.log(JSON.stringify(result.manifest.countSummary.trendFinder, null, 2));'`
  * Result: PASS - Normal exporter dry run used the selected live-data input and reported retained advanced artifacts.
  * Evidence: Count summary: topics 8, evidence 32, sources 2, watchlist 3, predictions 8, retrospectives 1, story log 50, industry events 5, run narratives 1, movement analyses 8, Engine Replay state `sanitized`.
* UI product-surface check: N/A - No user-facing route was changed.
* UI craft check: N/A - No UI was changed.

**BQC Fixes**:

* Contract alignment: Prevented reference drift by preserving full Trend Finder IDs and filtering dependent artifact references through retained ID sets (`scripts/lib/pages-demo-snapshot.ts`).

***

### Task T009 - Preserve public-safe Engine Replay summaries filtered to retained references

**Started**: 2026-06-25 05:12 **Completed**: 2026-06-25 05:13 **Duration**: 1 minute

**Notes**:

* Confirmed projected Engine Replay summaries retain sanitized state, sections, sources, topics, watchlist summaries, artifacts, decisions, and stage narrations.
* Confirmed trace source IDs, topic IDs, watchlist topic IDs, and decision artifact references all point to retained projected records.

**Files Changed**:

* `scripts/lib/pages-demo-snapshot.ts` - Engine Replay projection helpers filter summaries through retained source, topic, and artifact ID sets.
* `.spec_system/specs/phase33-session03-harden-trend-finder-projection/implementation-notes.md` - Recorded task evidence.

**Verification**:

* Command/check: `bun --eval 'import { readFileSync } from "node:fs"; ... Engine Replay retained-reference check ...'`
  * Result: PASS - Focused Engine Replay coherence check returned no missing retained references.
  * Evidence: Trace summary reported state `sanitized`, sources 2, topics 8, watchlist 3, artifacts 6, decisions 10, narrations 4, sections 5, and `issues: []`.
* Command/check: Prior `bun run typecheck:scripts`
  * Result: PASS - Engine Replay projection helpers compile under script TypeScript config.
  * Evidence: `tsc --noEmit -p tsconfig.scripts.json` exited 0 after trace helper wiring.
* UI product-surface check: N/A - No user-facing route was changed.
* UI craft check: N/A - No UI was changed.

**BQC Fixes**:

* Contract alignment: Engine Replay source, topic, watchlist, and artifact summaries now use the same retained IDs as the public Trend Finder projection (`scripts/lib/pages-demo-snapshot.ts`).

***

### Task T010 - Preserve schema-valid frozen demo provenance labels, notes, and selected valid analysis state

**Started**: 2026-06-25 05:13 **Completed**: 2026-06-25 05:14 **Duration**: 1 minute

**Notes**:

* Added a provenance projector that keeps public serialized states schema-valid.
* Preserved the selected run's valid `analysisState` while forcing public `dataState` and `sourceState` to `fixture-demo`.
* Added frozen real demo labels and notes without introducing new schema state strings.

**Files Changed**:

* `scripts/lib/pages-demo-snapshot.ts` - Added and wired `projectTrendFinderProvenance()`.
* `.spec_system/specs/phase33-session03-harden-trend-finder-projection/implementation-notes.md` - Recorded task evidence.

**Verification**:

* Command/check: `bun run typecheck:scripts`
  * Result: PASS - Script TypeScript compilation completed with no errors after provenance projection changes.
  * Evidence: `tsc --noEmit -p tsconfig.scripts.json` exited 0.
* Command/check: `bun --eval 'import { runPagesDemoSnapshot } from "./scripts/lib/pages-demo-snapshot.ts"; ... provenance count-only check ...'`
  * Result: PASS - Dry-run projected provenance is schema-valid and privacy-scan clean.
  * Evidence: `dataState` `fixture-demo`, `analysisState` `deterministic-fallback`, `sourceState` `fixture-demo`, labels `Frozen real Trend Finder snapshot`, `Deterministic fallback analysis`, `Reviewed public-source snapshot`, notes count 4, scan pass with 0 issues.
* UI product-surface check: N/A - No user-facing route was changed.
* UI craft check: N/A - No UI was changed.

**BQC Fixes**:

* Contract alignment: Frozen real demo meaning now lives in labels and notes while serialized provenance states remain within `TrendFinderProvenanceSchema` (`scripts/lib/pages-demo-snapshot.ts`).

***

### Task T011 - Regenerate committed public demo fixtures with duplicate target rejection and atomic write behavior preserved

**Started**: 2026-06-25 05:14 **Completed**: 2026-06-25 05:14 **Duration**: 1 minute

**Notes**:

* Regenerated committed public demo fixtures using the hardened exporter.
* Exporter completed with the existing atomic write path and expected file allowlist.
* Duplicate target rejection code path was not modified in this task; focused tests cover it later in T016.

**Files Changed**:

* `demo-website/public/demo/live-data.snapshot.json` - Regenerated public LiveData snapshot with hardened Trend Finder projection.
* `demo-website/public/demo/snapshot-metadata.json` - Regenerated metadata with updated count summary and scan evidence.
* `demo-website/snapshot-manifest.json` - Regenerated manifest with updated count summary and field policy.
* `demo-website/public/demo/graphs/index.json` - Rewritten by snapshot exporter; content changes reviewed later.
* `demo-website/public/demo/graphs/ai-os.json` - Rewritten by snapshot exporter; content changes reviewed later.
* `.spec_system/specs/phase33-session03-harden-trend-finder-projection/implementation-notes.md` - Recorded task evidence.

**Verification**:

* Command/check: `bun run demo:snapshot`
  * Result: PASS - Snapshot export completed with scan pass and expected write count.
  * Evidence: Captured at `2026-06-25T02:14:32.607Z`; source commit `39d7be05b6b8`; scan pass with 0 issues; route coverage 24; files written 5.
* UI product-surface check: N/A - No user-facing route was changed.
* UI craft check: N/A - No UI was changed.

***

### Task T012 - Record count deltas and fixture review evidence without raw private payload bodies

**Started**: 2026-06-25 05:14 **Completed**: 2026-06-25 05:15 **Duration**: 1 minute

**Notes**:

* Reviewed the regenerated fixture using count-only `jq` queries.
* Compared against the T003 baseline dry-run counts without printing raw Trend Finder payload bodies.
* Confirmed metadata and manifest count summaries match the regenerated fixture shape.

**Files Changed**:

* `.spec_system/specs/phase33-session03-harden-trend-finder-projection/implementation-notes.md` - Recorded count deltas and fixture review evidence.

**Verification**:

* Command/check: `jq -r 'def tf: .extensions.items["trend-finder"].data; [...] | .[]' demo-website/public/demo/live-data.snapshot.json`
  * Result: PASS - Regenerated public fixture has positive retained Trend Finder counts and schema-valid provenance.
  * Evidence: generatedAt `2026-06-25T02:14:32.607Z`; states data `fixture-demo`, analysis `deterministic-fallback`, source `fixture-demo`; topics 8; evidence 32; sources 2; watchlist 3; predictions 8; retros 1; story log 50; demand clusters 0; industry events 5; run narratives 1; movement analyses 8; trace state `sanitized`; trace decisions 10; trace sections 5; trace narrations 4.
* Command/check: `jq -r '[...] | .[]' demo-website/public/demo/snapshot-metadata.json`
  * Result: PASS - Metadata count summary and scan status match the regenerated fixture.
  * Evidence: capturedAt `2026-06-25T02:14:32.607Z`; scan pass; issue count 0; metadata topics 8; evidence 32; events 5; trace state `sanitized`; trace sections 5; Dream policy `not-exported`.
* Command/check: `jq -r '[...] | .[]' demo-website/snapshot-manifest.json`
  * Result: PASS - Manifest references the public live-data snapshot and includes expanded Trend Finder field policy.
  * Evidence: capturedAt `2026-06-25T02:14:32.607Z`; scan pass; policy included count 17; policy includes sanitized Engine Replay summaries and industry events.
* UI product-surface check: N/A - No user-facing route was changed.
* UI craft check: N/A - No UI was changed.

***

### Task T013 - Add populated Trend Finder fixture regression test for positive counts and parser success

**Started**: 2026-06-25 05:15 **Completed**: 2026-06-25 05:18 **Duration**: 3 minutes

**Notes**:

* Added `makePopulatedTrendFinderLiveDataFixture()` with retained topics, public evidence, sources, watchlist, movement, narratives, demand clusters, industry events, predictions, retros, story log rows, and sanitized Engine Replay.
* Added a positive regression test that projects the populated fixture, parses it through `parseTrendFinderData()`, and asserts positive retained counts.

**Files Changed**:

* `scripts/lib/__tests__/pages-demo-snapshot.test.ts` - Added populated Trend Finder fixture helper and positive parse/count regression test.
* `.spec_system/specs/phase33-session03-harden-trend-finder-projection/implementation-notes.md` - Recorded task evidence.

**Verification**:

* Command/check: `bun run test -- scripts/lib/__tests__/pages-demo-snapshot.test.ts`
  * Result: PASS - Focused snapshot test file passed.
  * Evidence: 1 test file passed; 10 tests passed, including populated Trend Finder parser/count coverage.
* UI product-surface check: N/A - No user-facing route was changed.
* UI craft check: N/A - No UI was changed.

**BQC Fixes**:

* Contract alignment: Added parser-backed test coverage for the populated Trend Finder public projection (`scripts/lib/__tests__/pages-demo-snapshot.test.ts`).

***

### Task T014 - Add reference-coherence tests for retained Trend Finder artifacts

**Started**: 2026-06-25 05:18 **Completed**: 2026-06-25 05:18 **Duration**: 1 minute

**Notes**:

* Added retained-reference coherence assertions for topics, evidence, sources, watchlist, movement analyses, run narratives, demand clusters, industry events, predictions, retros, and Engine Replay summaries.
* The test fails if any retained artifact points at a missing retained topic, evidence, source, or Engine Replay artifact ID.

**Files Changed**:

* `scripts/lib/__tests__/pages-demo-snapshot.test.ts` - Added retained-reference coherence regression test.
* `.spec_system/specs/phase33-session03-harden-trend-finder-projection/implementation-notes.md` - Recorded task evidence.

**Verification**:

* Command/check: `bun run test -- scripts/lib/__tests__/pages-demo-snapshot.test.ts`
  * Result: PASS - Focused snapshot test file passed.
  * Evidence: 1 test file passed; 10 tests passed, including retained-reference coherence coverage.
* UI product-surface check: N/A - No user-facing route was changed.
* UI craft check: N/A - No UI was changed.

**BQC Fixes**:

* Contract alignment: Added a focused missing-reference accumulator that validates retained public fixture relationships after projection (`scripts/lib/__tests__/pages-demo-snapshot.test.ts`).

***

### Task T015 - Add privacy regression tests for private strings in newly retained artifacts

**Started**: 2026-06-25 05:18 **Completed**: 2026-06-25 05:18 **Duration**: 1 minute

**Notes**:

* Added private-looking strings to newly retained fixture categories, including local paths, raw prompt markers, provider response markers, command-output markers, bridge URLs, bearer-token-like text, and OpenAI-key-like text.
* Added a regression test that projects the populated fixture, runs the public privacy scan, and asserts the forbidden strings are absent from output.

**Files Changed**:

* `scripts/lib/__tests__/pages-demo-snapshot.test.ts` - Added privacy regression fixture values and output assertions for newly retained Trend Finder artifacts.
* `.spec_system/specs/phase33-session03-harden-trend-finder-projection/implementation-notes.md` - Recorded task evidence.

**Verification**:

* Command/check: `bun run test -- scripts/lib/__tests__/pages-demo-snapshot.test.ts`
  * Result: PASS - Focused snapshot test file passed.
  * Evidence: 1 test file passed; 10 tests passed, including newly retained artifact privacy coverage.
* UI product-surface check: N/A - No user-facing route was changed.
* UI craft check: N/A - No UI was changed.

**BQC Fixes**:

* Error information boundaries: Added regression coverage that prevents local paths, prompt/provider markers, command markers, bridge URLs, and token-like strings from leaking through retained Trend Finder artifacts (`scripts/lib/__tests__/pages-demo-snapshot.test.ts`).

***

### Task T016 - Run focused tests, snapshot dry-run, fixture scan, JSON parse, ASCII/LF checks, and final count review

**Started**: 2026-06-25 05:19 **Completed**: 2026-06-25 05:21 **Duration**: 2 minutes

**Notes**:

* Ran the focused final verification bundle after code, test, fixture, and metadata updates.
* Ran Prettier on touched source, test, fixture, and session files, then reran the key verification commands.
* Confirmed all task checkboxes are ready to be complete after this entry is recorded.

**Files Changed**:

* `scripts/lib/pages-demo-snapshot.ts` - Formatted after final exporter changes.
* `.spec_system/specs/phase33-session03-harden-trend-finder-projection/implementation-notes.md` - Recorded final verification evidence.
* `.spec_system/specs/phase33-session03-harden-trend-finder-projection/tasks.md` - Updated task and completion checklist after evidence was recorded.

**Verification**:

* Command/check: `bun run typecheck:scripts`
  * Result: PASS - Script TypeScript compilation completed with no errors.
  * Evidence: `tsc --noEmit -p tsconfig.scripts.json` exited 0.
* Command/check: `bun run test -- scripts/lib/__tests__/pages-demo-snapshot.test.ts scripts/lib/__tests__/pages-demo-privacy-scan.test.ts`
  * Result: PASS - Focused snapshot and privacy tests passed.
  * Evidence: 2 test files passed; 21 tests passed.
* Command/check: `bun run demo:snapshot --dry-run --json`
  * Result: PASS - Dry-run snapshot export succeeded without writes.
  * Evidence: `ok: true`, `dryRun: true`, `filesWritten: []`, route coverage 24, scan pass with 0 issues.
* Command/check: `bun run demo:scan:pages --fixtures`
  * Result: PASS - Fixture privacy scan passed.
  * Evidence: 5 fixtures scanned, 0 skipped, 0 issues.
* Command/check: `jq empty demo-website/public/demo/live-data.snapshot.json demo-website/public/demo/snapshot-metadata.json demo-website/snapshot-manifest.json demo-website/public/demo/graphs/index.json demo-website/public/demo/graphs/ai-os.json`
  * Result: PASS - Generated JSON fixtures parse successfully.
  * Evidence: Command exited 0.
* Command/check: `perl -ne 'print "$ARGV:$.:$_" if /[^\x00-\x7F]/' ...`
  * Result: PASS - No non-ASCII characters found in touched source, test, generated fixture, or session files.
  * Evidence: Command exited 0 with no output.
* Command/check: `grep -Il $'\r' ...`
  * Result: PASS - No CRLF line endings found in touched source, test, generated fixture, or session files.
  * Evidence: Command produced no output.
* Command/check: `git diff --check HEAD -- ...`
  * Result: PASS - No whitespace errors found in touched files.
  * Evidence: Command exited 0.
* Command/check: final count-only `jq` review of `demo-website/public/demo/live-data.snapshot.json`
  * Result: PASS - Final generated fixture retains expected Trend Finder counts.
  * Evidence: topics 8, evidence 32, sources 2, watchlist 3, predictions 8, retros 1, story log 50, events 5, narratives 1, movement 8, trace state `sanitized`, trace sections 5, trace decisions 10.
* Command/check: task-count sanity with `rg -c`
  * Result: PASS - Before marking T016, task checklist showed 15 completed and 1 pending; T016 was the only pending task.
  * Evidence: `completed=15`, `pending=1` before the final checkbox update.
* UI product-surface check: N/A - No user-facing route was changed.
* UI craft check: N/A - No UI was changed.

***


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