> 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/phase31-session02-snapshot-exporter-and-fixtures/implementation-notes.md).

# Implementation Notes

**Session ID**: `phase31-session02-snapshot-exporter-and-fixtures` **Started**: 2026-06-24 01:22 **Last Updated**: 2026-06-24 01:22

***

## Session Progress

| Metric              | Value   |
| ------------------- | ------- |
| Tasks Completed     | 20 / 20 |
| Estimated Remaining | 0 hours |
| Blockers            | 0       |

***

## Task Log

### 2026-06-24 - Session Start

**Environment verified**:

* [x] Prerequisites confirmed with `.spec_system/scripts/check-prereqs.sh --json --env`
* [x] Bun available as project toolchain version 1.3.14
* [x] Directory structure ready

**Tool note**:

* `check-prereqs.sh --json --tools "bun,tsc,vitest"` found Bun but not global `tsc` or `vitest`.
* `node_modules` is present and `bun pm ls typescript vitest --depth 0` confirmed project-local `typescript@6.0.3` and `vitest@4.1.6`, so project scripts can run without global installs.

***

### Task T001 - Verify Session 01 and current inputs

**Started**: 2026-06-24 01:22 **Completed**: 2026-06-24 01:22 **Duration**: 4 minutes

**Notes**:

* Session 01 validation result is PASS with focused tests, full tests, script typecheck, normal Worker build, and demo-pages static build evidence.
* Session 02 stub confirms public fixtures, manifest, metadata, exporter, tests, `demo:snapshot`, and `demo-website/dist/` ignore coverage are in scope.
* Session 02 stub includes `_headers` and `_redirects` in a folded target tree, but the session spec resolves that conflict by assigning those files to Session 05.
* `src/data/live-data.example.json` is available as fallback input and includes local-looking project path strings, so raw copying is unsafe.
* `src/data/graphs/index.json` registers the bundled `ai-os` graph seed at `src/data/graphs/ai-os.json`.

**Files Changed**:

* `.spec_system/specs/phase31-session02-snapshot-exporter-and-fixtures/implementation-notes.md` - created session log and recorded setup/input verification evidence.

**Verification**:

* Command/check: `sed -n '1,260p' .spec_system/specs/phase31-session01-demo-mode-foundation/validation.md`
  * Result: PASS - Session 01 validation result is PASS with no unresolved blockers.
  * Evidence: Validation report lists 20/20 tasks complete and all quality gates passing.
* Command/check: `sed -n '1,260p' .spec_system/PRD/phase_31/session_02_snapshot_exporter_and_fixtures.md`
  * Result: PASS - Session 02 stub scope and deliverables inspected.
  * Evidence: In-scope and out-of-scope boundaries match the implementation spec, with `_headers` and `_redirects` deferred.
* Command/check: `sed -n '1,220p' src/data/graphs/index.json`
  * Result: PASS - Graph registry fixture exists and points at `src/data/graphs/ai-os.json`.
  * Evidence: Registry contains one `ai-os` bundled seed entry.
* Command/check: `sed -n '1,220p' src/data/live-data.example.json`
  * Result: PASS - Example LiveData fallback exists and is parseable JSON by inspection.
  * Evidence: Top-level `isExample`, `generatedAt`, `summary`, `subscriptions`, `usage`, and route-populating branches are present.
* UI product-surface check: N/A - no user-facing route or component changed.
* UI craft check: N/A - no UI changed.

***

### Task T002 - Inventory exporter contracts

**Started**: 2026-06-24 01:26 **Completed**: 2026-06-24 01:28 **Duration**: 2 minutes

**Notes**:

* LiveData input must pass through `validateLiveData()` from `src/lib/validate-live-data.ts`.
* Knowledge Graph registry and graph payloads must pass through `parseKnowledgeGraphRegistry()` and `parseKnowledgeGraph()` from `src/lib/knowledge-graph-types.ts`.
* Trend Finder data has zod-backed parsing through `parseTrendFinderData()` and validation through `validateTrendFinderData()` in `src/extensions/trend-finder/schema.ts`.
* Static Brief QA already exports `collectStaticBriefPrivacyIssues()`, and its private field/string lists cover prompts, raw responses, transcripts, command output, local paths, tokens, and cache paths.
* Evidence asset handling is centered in `scripts/extensions/trend-finder/evidence-assets.ts`; no public assets are required for this snapshot, so the session can create a policy placeholder rather than copying unreviewed media.
* Source-compliance docs approve public metadata fields such as titles, URLs, public timestamps, aggregate counts, tags, score/count metrics, and source health labels while excluding raw payloads, author/profile details, private URLs, request traces, credentials, transcripts, comments, media downloads, and cache paths.

**Files Changed**:

* `.spec_system/specs/phase31-session02-snapshot-exporter-and-fixtures/implementation-notes.md` - recorded contract inventory and source-compliance constraints.

**Verification**:

* Command/check: `rg -n "export function|export class|validateLiveData|parseKnowledge|parse.*Registry|collectStaticBrief" src/lib/validate-live-data.ts src/lib/knowledge-graph-types.ts scripts/extensions/trend-finder/static-brief-qa.ts src/extensions/trend-finder/schema.ts`
  * Result: PASS - Reusable LiveData, Knowledge Graph, Trend Finder, and static Brief privacy functions identified.
  * Evidence: Found `validateLiveData`, `parseKnowledgeGraph`, `parseKnowledgeGraphRegistry`, `parseTrendFinderData`, `validateTrendFinderData`, and `collectStaticBriefPrivacyIssues`.
* Command/check: `sed -n '1,260p' scripts/extensions/trend-finder/evidence-assets.ts`
  * Result: PASS - Evidence asset manifest contracts inspected.
  * Evidence: Asset manifest parsing, content-type checks, safe relative path resolution, and bridge endpoint constants are defined.
* Command/check: `for f in docs/sources/source-compliance-*.md; do rg -n "Allowed|Published|Public|Do not|private|raw|Terms|Compliance|Use|Fields|assets" "$f" | head -n 20; done`
  * Result: PASS - Source-compliance constraints inspected across reviewed sources.
  * Evidence: Docs consistently allow bounded public metadata and reject raw/private payloads.
* UI product-surface check: N/A - no user-facing route or component changed.
* UI craft check: N/A - no UI changed.

***

### Task T003 - Create implementation evidence log

**Started**: 2026-06-24 01:22 **Completed**: 2026-06-24 01:29 **Duration**: 7 minutes

**Notes**:

* Created the implementation evidence log with session metadata, environment verification, toolchain note, task progress table, and task-by-task evidence entries.
* The log will carry generated fixture decisions, Trend Finder field inclusion notes, scan results, command evidence, and residual risk throughout implementation.

**Files Changed**:

* `.spec_system/specs/phase31-session02-snapshot-exporter-and-fixtures/implementation-notes.md` - created and populated the required evidence log.

**Verification**:

* Command/check: `test -s .spec_system/specs/phase31-session02-snapshot-exporter-and-fixtures/implementation-notes.md`
  * Result: PASS - Implementation notes file exists and is non-empty.
  * Evidence: File contains session start, progress summary, and T001-T003 task evidence.
* UI product-surface check: N/A - no user-facing route or component changed.
* UI craft check: N/A - no UI changed.

***

### Task T004 - Create demo fixture boundary directories and policy docs

**Started**: 2026-06-24 01:30 **Completed**: 2026-06-24 01:34 **Duration**: 4 minutes

**Notes**:

* Created `demo-website/README.md` describing the public fixture boundary, local-only exporter command, Pages build rule, and Session 05 ownership of `_headers`, `_redirects`, and final Pages output.
* Created `demo-website/public/demo/trend-finder-assets/README.md` with the reviewed-asset policy.
* Created the `demo-website/public/demo/graphs/` directory for generated graph fixtures; graph JSON files are generated in T015.

**Files Changed**:

* `demo-website/README.md` - added fixture boundary and local-only snapshot documentation.
* `demo-website/public/demo/trend-finder-assets/README.md` - added reviewed public asset policy.

**Verification**:

* Command/check: `test -d demo-website/public/demo && test -d demo-website/public/demo/graphs && test -d demo-website/public/demo/trend-finder-assets && test -s demo-website/README.md && test -s demo-website/public/demo/trend-finder-assets/README.md`
  * Result: PASS - Required boundary directories and docs exist.
  * Evidence: Command exited 0 after creating the empty graph fixture directory.
* Command/check: `rg -n "snapshot|Cloudflare Pages|demo:snapshot|_headers|_redirects|local-only" demo-website/README.md demo-website/public/demo/trend-finder-assets/README.md`
  * Result: PASS - Docs mention the local-only exporter, Pages consumption boundary, and deferred `_headers`/`_redirects` ownership.
  * Evidence: Matches found in both README files.
* UI product-surface check: N/A - no user-facing route or component changed.
* UI craft check: N/A - no UI changed.

***

### Task T005 - Add explicit Pages output ignore coverage

**Started**: 2026-06-24 01:35 **Completed**: 2026-06-24 01:36 **Duration**: 1 minute

**Notes**:

* Added explicit `demo-website/dist/` ignore coverage near the existing build-output ignores.
* Preserved the existing broad `dist` ignore rule.

**Files Changed**:

* `.gitignore` - added explicit generated-only Pages demo output ignore entry.

**Verification**:

* Command/check: `git check-ignore -v demo-website/dist demo-website/dist/client/index.html`
  * Result: PASS - Generated Pages output is ignored by the explicit rule.
  * Evidence: Output reports `.gitignore:28:demo-website/dist/` for both paths.
* UI product-surface check: N/A - no user-facing route or component changed.
* UI craft check: N/A - no UI changed.

***

### Task T006 - Create exporter constants, types, route coverage, input source descriptors, and manifest contracts

**Started**: 2026-06-24 01:37 **Completed**: 2026-06-24 01:58 **Duration**: 21 minutes

**Notes**:

* Added `scripts/lib/pages-demo-snapshot.ts` as the script-only exporter library.
* Defined exporter version, fixture paths, route coverage, scan result contracts, redaction counts, input source descriptors, metadata, manifest, result, and error types.
* Kept the CLI out of the library so tests can exercise projection and writes directly.

**Files Changed**:

* `scripts/lib/pages-demo-snapshot.ts` - added public demo snapshot constants, types, route coverage, and manifest contracts.

**Verification**:

* Command/check: `bun run typecheck:scripts`
  * Result: PASS - New script library typechecks under `tsconfig.scripts.json`.
  * Evidence: `tsc --noEmit -p tsconfig.scripts.json` exited 0.
* Command/check: `bun -e 'import { runPagesDemoSnapshot } from "./scripts/lib/pages-demo-snapshot.ts"; const result = await runPagesDemoSnapshot({ dryRun: true, capturedAt: "2026-06-24T00:00:00.000Z", sourceCommit: "test-commit" }); console.log(JSON.stringify({ manifestKeys: Object.keys(result.manifest), routeCount: result.manifest.routeCoverage.length }, null, 2));'`
  * Result: PASS - Manifest contracts and route coverage are generated in dry run.
  * Evidence: Manifest includes schema, capture, source, exporter, route, input, redaction, scan, file, and Trend Finder policy fields; route count is 17.
* UI product-surface check: N/A - no user-facing route or component changed.
* UI craft check: N/A - no UI changed.

***

### Task T007 - Implement public demo privacy scan rules

**Started**: 2026-06-24 01:58 **Completed**: 2026-06-24 02:02 **Duration**: 4 minutes

**Notes**:

* Implemented recursive privacy scanning for private field names, local paths, `file://`, loopback/private-LAN URLs, `/__*` bridge URLs, credential-bearing env names, OpenAI/GitHub/JWT/Bearer token shapes, prompts, transcripts, command output, and private fixture labels.
* Reused `collectStaticBriefPrivacyIssues()` so Trend Finder static Brief privacy coverage stays aligned with existing helpers.
* Adjusted empty private markers so validator-backfilled zero counts or false booleans do not fail scans, while populated private values still fail.

**Files Changed**:

* `scripts/lib/pages-demo-snapshot.ts` - added scanner patterns, recursive scanner, and scan result builder.

**Verification**:

* Command/check: `bun -e 'import { collectPublicDemoPrivacyIssues, scanPublicDemoPayload } from "./scripts/lib/pages-demo-snapshot.ts"; const bad = { path: "/home/operator/private", url: "http://127.0.0.1:5173/__bridge", prompt: "raw prompt: secret", token: "Bearer abcdefghijklmnop" }; console.log(JSON.stringify({ issueCount: collectPublicDemoPrivacyIssues(bad).length, status: scanPublicDemoPayload(bad).status }, null, 2));'`
  * Result: PASS - Representative private payload is rejected.
  * Evidence: Scanner returned `status: "fail"` with 8 issues.
* Command/check: `bun run typecheck:scripts`
  * Result: PASS - Scanner code typechecks.
  * Evidence: `tsc --noEmit -p tsconfig.scripts.json` exited 0.
* UI product-surface check: N/A - no user-facing route or component changed.
* UI craft check: N/A - no UI changed.

***

### Task T008 - Implement allowlist-first LiveData projection

**Started**: 2026-06-24 02:02 **Completed**: 2026-06-24 02:08 **Duration**: 6 minutes

**Notes**:

* LiveData inputs are loaded from `src/data/live-data.json` when available and fall back to `src/data/live-data.example.json`.
* Each candidate is validated with `validateLiveData()`, projected through route-facing allowlists, scanned, and rejected if projected output is not public-safe.
* Host summary, usage, daily, projects, activity, skills, integrations, automations, knowledge stores, model usage, memory, local agents, and extensions are bounded and deterministic.
* Local project path fields are replaced with demo workspace labels rather than copied.

**Files Changed**:

* `scripts/lib/pages-demo-snapshot.ts` - added LiveData input loading, projection helpers, fallback handling, redaction counts, and scan-gated candidate selection.

**Verification**:

* Command/check: `bun -e 'import { readFileSync } from "node:fs"; import { validateLiveData } from "./src/lib/validate-live-data.ts"; import { projectLiveDataForPublicDemo, scanPublicDemoPayload } from "./scripts/lib/pages-demo-snapshot.ts"; const data = validateLiveData(JSON.parse(readFileSync("src/data/live-data.json", "utf8"))); const projected = projectLiveDataForPublicDemo(data, "2026-06-24T00:00:00.000Z"); const validated = validateLiveData(projected.data); console.log(JSON.stringify({ scan: scanPublicDemoPayload(validated).status, redactions: projected.redactionCounts, recentProjectHasPath: "path" in (validated.recentProjects[0] ?? {}) }, null, 2));'`
  * Result: PASS - Current generated LiveData projects to a validated, scan-clean public fixture.
  * Evidence: Scan returned `pass`, recent project rows have no `path`, and redaction counts recorded 8 local path removals, 8 label replacements, and 8 array trims.
* Command/check: `bun -e 'import { runPagesDemoSnapshot } from "./scripts/lib/pages-demo-snapshot.ts"; const result = await runPagesDemoSnapshot({ dryRun: true, capturedAt: "2026-06-24T00:00:00.000Z", sourceCommit: "test-commit" }); console.log(result.metadata.inputSources.find((s) => s.status === "used")?.id);'`
  * Result: PASS - Local generated LiveData is selected only after projection and scan success.
  * Evidence: Used input source is `live-data`.
* UI product-surface check: N/A - no user-facing route or component changed.
* UI craft check: N/A - no UI changed.

***

### Task T009 - Implement Knowledge Graph registry and graph projection

**Started**: 2026-06-24 02:08 **Completed**: 2026-06-24 02:11 **Duration**: 3 minutes

**Notes**:

* Graph registry input is parsed with `parseKnowledgeGraphRegistry()`.
* Each graph payload is parsed with `parseKnowledgeGraph()` before projection.
* Public graph fixtures preserve node/link topology and metadata while clearing node/link source file and source location fields.
* Registry provenance is rewritten to `demo-fixture`.

**Files Changed**:

* `scripts/lib/pages-demo-snapshot.ts` - added Knowledge Graph registry loading, graph parsing, projection, and input source descriptors.

**Verification**:

* Command/check: `bun -e 'import { runPagesDemoSnapshot } from "./scripts/lib/pages-demo-snapshot.ts"; const result = await runPagesDemoSnapshot({ dryRun: true, capturedAt: "2026-06-24T00:00:00.000Z", sourceCommit: "test-commit" }); console.log(JSON.stringify({ graphIds: Object.keys(result.graphs), graphNodes: result.graphs["ai-os"].nodes.length, graphSourcesRemoved: result.graphs["ai-os"].nodes.every((n) => n.source_file === null) }, null, 2));'`
  * Result: PASS - Graph registry and `ai-os` graph are projected in dry run.
  * Evidence: Dry run returns graph id `ai-os`, 17 nodes, and all node `source_file` fields are null.
* Command/check: `bun run typecheck:scripts`
  * Result: PASS - Graph projection code typechecks.
  * Evidence: `tsc --noEmit -p tsconfig.scripts.json` exited 0.
* UI product-surface check: N/A - no user-facing route or component changed.
* UI craft check: N/A - no UI changed.

***

### Task T010 - Implement Trend Finder payload and asset projection

**Started**: 2026-06-24 02:11 **Completed**: 2026-06-24 02:17 **Duration**: 6 minutes

**Notes**:

* Trend Finder payloads are parsed through `parseTrendFinderData()` before public projection.
* Included reviewed public fields: creator lens, provenance labels, source health summaries, source setup compliance references, score breakdowns, topic summaries, evidence titles/URLs/snippets, creator angles, watchlist rows, and prediction/retro summaries.
* Replaced unclear or private-adjacent fields with fixture labels: runtime provider, source setup warnings, asset summary, and scheduler command hints.
* Evidence asset bridge references are not copied; the fixture emits empty `evidenceAssets` arrays and records asset removals in redaction counts when present.
* No public Trend Finder media was copied in this session because no reviewed asset is required for the snapshot.

**Files Changed**:

* `scripts/lib/pages-demo-snapshot.ts` - added Trend Finder parser-backed projection, fixture fallbacks, and asset-reference removal.

**Verification**:

* Command/check: `bun -e 'import { runPagesDemoSnapshot, scanPublicDemoPayload } from "./scripts/lib/pages-demo-snapshot.ts"; const result = await runPagesDemoSnapshot({ dryRun: true, capturedAt: "2026-06-24T00:00:00.000Z", sourceCommit: "test-commit" }); const trend = result.liveData.extensions.items["trend-finder"].data; console.log(JSON.stringify({ keys: Object.keys(trend), scan: scanPublicDemoPayload(trend).status, topics: trend.topics.length, evidence: trend.evidence.length, assets: trend.evidence.every((item) => item.evidenceAssets.length === 0) }, null, 2));'`
  * Result: PASS - Trend Finder projection is scan-clean and route-facing.
  * Evidence: Dry run returns expected Trend Finder branches, scan `pass`, 5 topics, 16 evidence rows, and all evidence asset arrays empty.
* Command/check: `bun run typecheck:scripts`
  * Result: PASS - Trend Finder projection code typechecks.
  * Evidence: `tsc --noEmit -p tsconfig.scripts.json` exited 0.
* UI product-surface check: N/A - no user-facing route or component changed.
* UI craft check: N/A - no UI changed.

**BQC Fixes**:

* Trust boundary enforcement: Trend Finder data is parsed before projection and then scanned after projection (`scripts/lib/pages-demo-snapshot.ts`).

***

### Task T011 - Implement manifest, metadata, redaction counts, scan results, and source commit generation

**Started**: 2026-06-24 02:17 **Completed**: 2026-06-24 02:21 **Duration**: 4 minutes

**Notes**:

* Metadata and manifest include capture time, source commit, exporter version, input sources, route coverage, redaction counts, scan status, output file list, and Trend Finder field policy.
* Source commit is resolved with `git rev-parse --short=12 HEAD` and falls back to `unknown` when git is unavailable.
* Manifest and metadata record scan status and issue count, but committed successful outputs do not include private issue samples.

**Files Changed**:

* `scripts/lib/pages-demo-snapshot.ts` - added source commit resolution, metadata builder, manifest builder, output scan gating, and result summaries.

**Verification**:

* Command/check: `bun -e 'import { runPagesDemoSnapshot } from "./scripts/lib/pages-demo-snapshot.ts"; const result = await runPagesDemoSnapshot({ dryRun: true, capturedAt: "2026-06-24T00:00:00.000Z", sourceCommit: "test-commit" }); console.log(JSON.stringify({ manifestKeys: Object.keys(result.manifest), routeCount: result.manifest.routeCoverage.length, scan: result.manifest.scan.status, commit: result.manifest.sourceCommit }, null, 2));'`
  * Result: PASS - Manifest and metadata fields are generated in dry run.
  * Evidence: Manifest includes expected key set, 17 routes, scan `pass`, and source commit `test-commit`.
* Command/check: `bun run typecheck:scripts`
  * Result: PASS - Manifest code typechecks.
  * Evidence: `tsc --noEmit -p tsconfig.scripts.json` exited 0.
* UI product-surface check: N/A - no user-facing route or component changed.
* UI craft check: N/A - no UI changed.

***

### Task T012 - Implement atomic fixture writes

**Started**: 2026-06-24 02:21 **Completed**: 2026-06-24 02:25 **Duration**: 4 minutes

**Notes**:

* Added scan-gated write plans and `writeSnapshotFilesAtomically()`.
* Writes are confined to the allowed demo fixture outputs.
* Each target is written to a sibling temp file, existing files are backed up, temp files are renamed into place, and failures remove temp files and restore backups where possible.
* Added `assertAtomicWriteFailureCleanup()` helper for focused cleanup tests.

**Files Changed**:

* `scripts/lib/pages-demo-snapshot.ts` - added output boundary checks, temp-file writes, backup/restore compensation, and dry-run behavior.

**Verification**:

* Command/check: `bun -e 'import { assertAtomicWriteFailureCleanup } from "./scripts/lib/pages-demo-snapshot.ts"; console.log(JSON.stringify({ cleanup: await assertAtomicWriteFailureCleanup() }, null, 2));'`
  * Result: PASS - Disallowed output path fails without leaving a file behind.
  * Evidence: Helper returned `cleanup: true`.
* Command/check: `bun -e 'import { runPagesDemoSnapshot } from "./scripts/lib/pages-demo-snapshot.ts"; const result = await runPagesDemoSnapshot({ dryRun: true, capturedAt: "2026-06-24T00:00:00.000Z", sourceCommit: "test-commit" }); console.log(JSON.stringify({ files: result.filesWritten.length, dryRun: result.dryRun, scan: result.metadata.scan.status }, null, 2));'`
  * Result: PASS - Dry run produces scan-clean outputs without writing files.
  * Evidence: `files` is 0, `dryRun` is true, scan is `pass`.
* UI product-surface check: N/A - no user-facing route or component changed.
* UI craft check: N/A - no UI changed.

**BQC Fixes**:

* Mutation safety: write path uses temp files, backups, allowed-path checks, and compensation on failure (`scripts/lib/pages-demo-snapshot.ts`).
* Failure path completeness: write and privacy failures throw `PagesDemoSnapshotError` with stable codes (`scripts/lib/pages-demo-snapshot.ts`).

***

### Task T013 - Create local-only snapshot exporter CLI

**Started**: 2026-06-24 02:31 **Completed**: 2026-06-24 02:37 **Duration**: 6 minutes

**Notes**:

* Added `scripts/demo/export-pages-snapshot.ts` as the thin CLI wrapper around the exporter library.
* CLI supports `--dry-run`, `--json`, `--quiet`, `--captured-at`, `--source-commit`, `--live-data`, `--example-live-data`, `--graph-registry`, and `--help`.
* Known errors map to stable exit codes: privacy 2, input 3, write 4, unknown 1.
* Success output is redacted and includes only scan status, route count, source labels, redaction counts, and output paths.

**Files Changed**:

* `scripts/demo/export-pages-snapshot.ts` - added local-only exporter CLI.

**Verification**:

* Command/check: `bun run scripts/demo/export-pages-snapshot.ts --help`
  * Result: PASS - Help text prints supported flags and exits 0.
  * Evidence: Usage output lists dry-run, JSON, quiet, timestamp, source commit, input path, graph registry, and help options.
* Command/check: `bun run scripts/demo/export-pages-snapshot.ts --dry-run --json`
  * Result: PASS - CLI dry run completes without writing files.
  * Evidence: JSON output reports `ok: true`, `dryRun: true`, scan `pass`, 17 routes, 0 files written, and redaction counts.
* Command/check: `bun run typecheck:scripts`
  * Result: PASS - CLI typechecks.
  * Evidence: `tsc --noEmit -p tsconfig.scripts.json` exited 0.
* UI product-surface check: N/A - no user-facing route or component changed.
* UI craft check: N/A - no UI changed.

***

### Task T014 - Wire `demo:snapshot` package script

**Started**: 2026-06-24 02:37 **Completed**: 2026-06-24 02:38 **Duration**: 1 minute

**Notes**:

* Added `demo:snapshot` to `package.json`.
* The script invokes the local-only CLI and does not modify normal Worker or Vite build scripts.

**Files Changed**:

* `package.json` - added `demo:snapshot`.

**Verification**:

* Command/check: `bun run demo:snapshot -- --dry-run --json`
  * Result: PASS - Package script invokes the exporter CLI and completes a scan-clean dry run.
  * Evidence: JSON output reports `ok: true`, `dryRun: true`, scan `pass`, 17 routes, and 0 files written.
* Command/check: `jq '.scripts | {build, "build:dev", "demo:snapshot", preview}' package.json`
  * Result: PASS - Normal build and preview scripts are unchanged.
  * Evidence: `build` remains `bun run seed:data && vite build`; `demo:snapshot` points at `bun run scripts/demo/export-pages-snapshot.ts`.
* UI product-surface check: N/A - no user-facing route or component changed.
* UI craft check: N/A - no UI changed.

***

### Task T015 - Generate public-safe fixture outputs

**Started**: 2026-06-24 02:38 **Completed**: 2026-06-24 02:39 **Duration**: 1 minute

**Notes**:

* Ran the local-only exporter and generated committed fixture outputs.
* Exporter wrote only the expected public demo fixture and manifest files.
* Disk-level privacy scan passed with zero issues.

**Files Changed**:

* `demo-website/public/demo/live-data.snapshot.json` - generated public-safe LiveData projection.
* `demo-website/public/demo/snapshot-metadata.json` - generated snapshot metadata.
* `demo-website/public/demo/graphs/index.json` - generated graph registry fixture.
* `demo-website/public/demo/graphs/ai-os.json` - generated public-safe graph payload fixture.
* `demo-website/snapshot-manifest.json` - generated snapshot manifest.

**Verification**:

* Command/check: `bun run demo:snapshot`
  * Result: PASS - Exporter completed and wrote expected files.
  * Evidence: Command reported scan `pass`, 17 routes, and 5 files written.
* Command/check: `for f in demo-website/public/demo/live-data.snapshot.json demo-website/public/demo/snapshot-metadata.json demo-website/public/demo/graphs/index.json demo-website/public/demo/graphs/ai-os.json demo-website/snapshot-manifest.json; do jq empty "$f"; done`
  * Result: PASS - Generated JSON files are parseable.
  * Evidence: `jq empty` exited 0 for all five files.
* Command/check: `bun -e 'import { verifySnapshotFilePrivacy } from "./scripts/lib/pages-demo-snapshot.ts"; console.log(JSON.stringify(await verifySnapshotFilePrivacy(process.cwd()), null, 2));'`
  * Result: PASS - Generated files pass the public demo privacy scan from disk.
  * Evidence: Result is `status: "pass"` and `issueCount: 0`.
* Command/check: `bun -e 'import { readFileSync } from "node:fs"; import { validateLiveData } from "./src/lib/validate-live-data.ts"; import { parseKnowledgeGraph, parseKnowledgeGraphRegistry } from "./src/lib/knowledge-graph-types.ts"; const live = validateLiveData(JSON.parse(readFileSync("demo-website/public/demo/live-data.snapshot.json", "utf8"))); const reg = parseKnowledgeGraphRegistry(JSON.parse(readFileSync("demo-website/public/demo/graphs/index.json", "utf8"))); const graph = parseKnowledgeGraph(JSON.parse(readFileSync("demo-website/public/demo/graphs/ai-os.json", "utf8"))); console.log(JSON.stringify({ liveGeneratedAt: live.generatedAt, registry: reg.map((entry) => entry.id), graphNodes: graph.nodes.length, graphLinks: graph.links.length }, null, 2));'`
  * Result: PASS - Fixture contracts parse through existing validators.
  * Evidence: LiveData generatedAt is present, registry includes `ai-os`, and graph has 17 nodes and 25 links.
* UI product-surface check: N/A - no user-facing route or component changed.
* UI craft check: N/A - no UI changed.

***

### Task T016 - Document Pages committed-fixture boundary

**Started**: 2026-06-24 02:39 **Completed**: 2026-06-24 02:40 **Duration**: 1 minute

**Notes**:

* Confirmed `demo-website/README.md` documents that Cloudflare Pages builds consume committed fixtures and do not run `demo:snapshot`.
* Confirmed `_headers`, `_redirects`, preview commands, and final Pages output remain Session 05 scope.

**Files Changed**:

* `demo-website/README.md` - fixture boundary documentation created earlier in T004 and verified for Session 05 scope language.

**Verification**:

* Command/check: `rg -n "Cloudflare Pages builds consume the committed fixture files|do not run|_headers|_redirects|Session 05|demo-website/dist" demo-website/README.md`
  * Result: PASS - README contains all required boundary statements.
  * Evidence: Matches found for Pages committed-fixture consumption, no `demo:snapshot` build execution, `_headers`, `_redirects`, Session 05, and ignored dist output.
* UI product-surface check: N/A - no user-facing route or component changed.
* UI craft check: N/A - no UI changed.

***

### Task T017 - Write projection, graph, manifest, deterministic output, and raw-copy tests

**Started**: 2026-06-24 02:40 **Completed**: 2026-06-24 02:41 **Duration**: 1 minute

**Notes**:

* Added focused Vitest coverage for LiveData projection, graph projection, manifest fields, deterministic dry-run output, generated fixture writes, disk privacy verification, and no raw `src/data/live-data.json` copying.
* Tests use temporary workspaces with fixture LiveData and Knowledge Graph inputs.

**Files Changed**:

* `scripts/lib/__tests__/pages-demo-snapshot.test.ts` - added focused exporter tests.

**Verification**:

* Command/check: `bun run test -- scripts/lib/__tests__/pages-demo-snapshot.test.ts`
  * Result: PASS - Focused snapshot exporter tests pass.
  * Evidence: 1 test file passed, 6 tests passed.
* UI product-surface check: N/A - no user-facing route or component changed.
* UI craft check: N/A - no UI changed.

***

### Task T018 - Write privacy scanner and failed-write cleanup tests

**Started**: 2026-06-24 02:41 **Completed**: 2026-06-24 02:42 **Duration**: 1 minute

**Notes**:

* Added scanner tests for private fields, local paths, `file://`, bridge URLs, private LAN URLs, auth/key-shaped strings, prompt markers, transcript markers, command output, and private labels.
* Added failed-write cleanup coverage for disallowed output paths.

**Files Changed**:

* `scripts/lib/__tests__/pages-demo-snapshot.test.ts` - added privacy scanner and cleanup tests.

**Verification**:

* Command/check: `bun run test -- scripts/lib/__tests__/pages-demo-snapshot.test.ts`
  * Result: PASS - Focused snapshot exporter tests pass.
  * Evidence: 1 test file passed, 6 tests passed, including scanner rejection and failed-write cleanup assertions.
* UI product-surface check: N/A - no user-facing route or component changed.
* UI craft check: N/A - no UI changed.

**BQC Fixes**:

* Failure path completeness: failed write path is tested to reject and leave no disallowed output file (`scripts/lib/__tests__/pages-demo-snapshot.test.ts`).
* Trust boundary enforcement: scanner tests exercise unsafe external/private input strings before fixture writes (`scripts/lib/__tests__/pages-demo-snapshot.test.ts`).

***

### Task T019 - Run focused tests, script typecheck, and snapshot exporter

**Started**: 2026-06-24 02:42 **Completed**: 2026-06-24 02:43 **Duration**: 1 minute

**Notes**:

* Ran the focused exporter test suite after test creation.
* Ran script typecheck after adding the exporter library, CLI, and tests.
* Re-ran the real snapshot exporter so generated fixtures reflect the final implementation.
* No failures required repair.

**Files Changed**:

* `demo-website/public/demo/live-data.snapshot.json` - regenerated final fixture.
* `demo-website/public/demo/snapshot-metadata.json` - regenerated final metadata.
* `demo-website/public/demo/graphs/index.json` - regenerated final graph registry fixture.
* `demo-website/public/demo/graphs/ai-os.json` - regenerated final graph fixture.
* `demo-website/snapshot-manifest.json` - regenerated final manifest.

**Verification**:

* Command/check: `bun run test -- scripts/lib/__tests__/pages-demo-snapshot.test.ts`
  * Result: PASS - Focused exporter tests pass.
  * Evidence: 1 test file passed, 6 tests passed.
* Command/check: `bun run typecheck:scripts`
  * Result: PASS - Script TypeScript check passes.
  * Evidence: `tsc --noEmit -p tsconfig.scripts.json` exited 0.
* Command/check: `bun run demo:snapshot`
  * Result: PASS - Snapshot exporter completes and writes expected fixtures.
  * Evidence: Command reported scan `pass`, 17 routes, and 5 files written.
* UI product-surface check: N/A - no user-facing route or component changed.
* UI craft check: N/A - no UI changed.

***

### Task T020 - Validate ASCII/LF, fixtures, privacy scan, ignored dist, and evidence completeness

**Started**: 2026-06-24 02:43 **Completed**: 2026-06-24 02:45 **Duration**: 2 minutes

**Notes**:

* Initial ASCII sweep found non-ASCII characters from public Trend Finder evidence in generated JSON.
* Fixed the exporter writer to escape non-ASCII JSON code units and tightened the scanner for plain `API key` text, then regenerated fixtures.
* Final ASCII, LF, parseability, privacy, ignore, evidence, and whitespace checks pass.

**Files Changed**:

* `scripts/lib/pages-demo-snapshot.ts` - added ASCII-safe JSON writing and tightened plain API key scan coverage.
* `demo-website/public/demo/live-data.snapshot.json` - regenerated ASCII-safe fixture.
* `demo-website/public/demo/snapshot-metadata.json` - regenerated ASCII-safe metadata.
* `demo-website/public/demo/graphs/index.json` - regenerated ASCII-safe registry fixture.
* `demo-website/public/demo/graphs/ai-os.json` - regenerated ASCII-safe graph fixture.
* `demo-website/snapshot-manifest.json` - regenerated ASCII-safe manifest.
* `.spec_system/specs/phase31-session02-snapshot-exporter-and-fixtures/implementation-notes.md` - recorded final validation evidence.

**Verification**:

* Command/check: `perl -ne 'if (/[^\\x00-\\x7F]/) { print "$ARGV:$.:$_"; $bad=1 } END { exit($bad ? 1 : 0) }' [session deliverables]`
  * Result: PASS - No non-ASCII characters remain in session deliverables.
  * Evidence: Command exited 0 with no output after fixture regeneration.
* Command/check: `grep -Il $'\\r' [session deliverables]`
  * Result: PASS - No CRLF line endings found.
  * Evidence: Command produced no matching files.
* Command/check: `for f in demo-website/public/demo/live-data.snapshot.json demo-website/public/demo/snapshot-metadata.json demo-website/public/demo/graphs/index.json demo-website/public/demo/graphs/ai-os.json demo-website/snapshot-manifest.json; do jq empty "$f"; done`
  * Result: PASS - Fixture and manifest JSON files parse.
  * Evidence: `jq empty` exited 0 for all five files.
* Command/check: `bun -e 'import { verifySnapshotFilePrivacy } from "./scripts/lib/pages-demo-snapshot.ts"; console.log(JSON.stringify(await verifySnapshotFilePrivacy(process.cwd()), null, 2));'`
  * Result: PASS - Disk-level fixture privacy scan passes.
  * Evidence: Result is `status: "pass"` and `issueCount: 0`.
* Command/check: `git check-ignore -v demo-website/dist demo-website/dist/client/index.html`
  * Result: PASS - Generated Pages output remains ignored by explicit coverage.
  * Evidence: Output reports `.gitignore:28:demo-website/dist/` for both paths.
* Command/check: `rg -n '^### Task T[0-9]{3}' .spec_system/specs/phase31-session02-snapshot-exporter-and-fixtures/implementation-notes.md`
  * Result: PASS - Evidence entries exist for T001 through T020.
  * Evidence: Task entries were present for T001-T019 before this final entry was added; this entry completes T020 evidence.
* Command/check: `git diff --check`
  * Result: PASS - No whitespace errors found.
  * Evidence: Command exited 0 with no output.
* UI product-surface check: N/A - no user-facing route or component changed.
* UI craft check: N/A - no UI changed.

**BQC Fixes**:

* Error information boundaries: generated JSON is ASCII-safe, and successful manifests do not include private scan issue samples (`scripts/lib/pages-demo-snapshot.ts`).

***


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