> For the complete documentation index, see [llms.txt](https://faction-os.gitbook.io/faction-os-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://faction-os.gitbook.io/faction-os-docs/.spec_system/archive/sessions/phase04-session06-public-demo-media-parity-and-offline-loading/implementation-notes.md). # Implementation Notes **Session ID**: `phase04-session06-public-demo-media-parity-and-offline-loading` **Package**: cross-cutting **Started**: 2026-05-29 21:06 **Last Updated**: 2026-05-29 21:31 *** ## Session Progress | Metric | Value | | ------------------- | ------- | | Tasks Completed | 20 / 20 | | Estimated Remaining | 0 hours | | Blockers | 0 | *** ### Task T020 - Run final hygiene, privacy, and quarantine validation **Started**: 2026-05-29 21:28 **Completed**: 2026-05-29 21:31 **Duration**: 3 minutes **Notes**: * Ran `npm run format`; it fixed formatting in 5 files. * Re-ran `npm run format:check`; it passed. * Re-ran `npm run lint`; it passed. * Re-ran `npm run typecheck --workspaces --if-present`; it passed. * Re-ran `npm run security:secrets`; it passed. * Re-ran `git diff --check`; it passed. * Re-ran `npm run media:demo:check`; it passed. * Re-ran focused Vitest for public-demo media and app catalog tests; 18 tests passed. * Ran CR/LF, ASCII, and trailing-whitespace scans across modified and untracked session files; all passed. * Added final security review and implementation summary artifacts. **Files Changed**: * `.spec_system/specs/phase04-session06-public-demo-media-parity-and-offline-loading/implementation-notes.md` - recorded final validation evidence. * `.spec_system/specs/phase04-session06-public-demo-media-parity-and-offline-loading/security-compliance.md` - added final security review. * `.spec_system/specs/phase04-session06-public-demo-media-parity-and-offline-loading/IMPLEMENTATION_SUMMARY.md` - added session summary. **BQC Fixes**: * Error information boundaries: final secret scan and privacy review confirmed no secret-like values or sensitive local paths were added. * Contract alignment: post-format checker and focused tests passed. *** ### Task T019 - Run focused validation gates **Started**: 2026-05-29 21:27 **Completed**: 2026-05-29 21:28 **Duration**: 1 minute **Notes**: * `npm run media:demo:check` passed: 6 groups, 37 files, 6 lazy files, 31 service-worker cache entries, 3 manifest icons, 3 runtime files, and 5 docs. * `npm run battlefield:check` passed: 6 assets, 668358 app runtime bytes, 668358 public-demo runtime bytes, 15542218 reference bytes, cache version `factionos-demo-v9`, and 34 shell assets. * `npm run media:visual:check` passed with the existing 33 conditional metadata and non-release blocker warnings. * `npm run media:drafts:check` passed. * `npx vitest run tests/publicDemoMedia.test.ts apps/web/tests/mediaCatalog.test.ts --config vitest.config.ts` passed with 2 files and 18 tests. * `npm run test:e2e -- --project=public-demo-desktop --project=public-demo-mobile tests/e2e/public-demo.e2e.ts` passed with 12 passed and 2 skipped. **Files Changed**: * `.spec_system/specs/phase04-session06-public-demo-media-parity-and-offline-loading/implementation-notes.md` - recorded validation evidence. **BQC Fixes**: * N/A - validation evidence only. *** ### Task T018 - Update app media catalog tests **Started**: 2026-05-29 21:26 **Completed**: 2026-05-29 21:27 **Duration**: 1 minute **Notes**: * Updated catalog helper expectations for the three new conditional public-demo records. * Added assertions that speech, music, and showcase records remain blocked and carry output metadata. * Ran `npx vitest run apps/web/tests/mediaCatalog.test.ts --config vitest.config.ts`; it passed with 8 tests. **Files Changed**: * `apps/web/tests/mediaCatalog.test.ts` - updated public-demo media catalog expectations and conditional blocker coverage. **BQC Fixes**: * Contract alignment: tests now match the catalog helper ordering and release grouping after adding current public-demo records. *** ### Task T017 - Add Vitest coverage for public-demo media checker **Started**: 2026-05-29 21:25 **Completed**: 2026-05-29 21:26 **Duration**: 1 minute **Notes**: * Expanded `tests/publicDemoMedia.test.ts` from fixture sanity checks to 10 focused tests. * Covered config ordering, path rejection, workspace import parsing, current command pass state, manifest drift, cache-version drift, lazy media precache drift, and missing catalog records. * Ran `npx vitest run tests/publicDemoMedia.test.ts --config vitest.config.ts`; it passed with 10 tests. **Files Changed**: * `scripts/check-public-demo-media.mjs` - exported boundary parsing helpers for focused tests. * `tests/publicDemoMedia.test.ts` - added checker coverage. **BQC Fixes**: * Trust boundary enforcement: tests now cover unsafe path and workspace import rejection helpers. * Contract alignment: tests assert the current config passes and known drift cases fail with stable report codes. *** ### Task T016 - Update media and public-demo docs **Started**: 2026-05-29 21:24 **Completed**: 2026-05-29 21:25 **Duration**: 1 minute **Notes**: * Added Session 06 public-demo media parity docs, current media paths, conditional catalog blockers, cache version, and lazy music policy. * Updated public-demo README and static artifact docs with `media:demo:check`, lazy media paths, cache policy, and validation expectations. * Updated public-demo validation docs with repository-relative checked paths, the current `factionos-demo-v9` cache version, and required command set. * Ran `npm run media:demo:check`; it passed with 6 groups and 37 files checked. **Files Changed**: * `docs/media-assets.md` - added Session 06 public-demo media parity section. * `public-demo/README_public-demo.md` - documented command usage and lazy music paths. * `public-demo/docs_public-demo/static-artifact.md` - documented lazy media and maintenance checks. * `public-demo/docs_public-demo/validation.md` - documented checked paths, cache version, and validation commands. **BQC Fixes**: * Contract alignment: docs now use repository-relative paths that the checker validates directly. *** ### Task T015 - Document public-demo media check command usage **Started**: 2026-05-29 21:23 **Completed**: 2026-05-29 21:24 **Duration**: 1 minute **Notes**: * Documented `check-public-demo-media.mjs` and `npm run media:demo:check`. * Added remediation guidance for path, file, cache, lazy media, manifest, catalog, runtime boundary, and docs-reference failures. * Documented cache-version rules and lazy music policy. **Files Changed**: * `scripts/README_scripts.md` - added public-demo media checker usage and remediation notes. **BQC Fixes**: * Failure path completeness: checker report codes now have documented remediation paths. *** ### Task T014 - Update public-demo browser validation **Started**: 2026-05-29 21:22 **Completed**: 2026-05-29 21:23 **Duration**: 1 minute **Notes**: * Added Playwright coverage for visible audio fallback copy when speech and background music playback are blocked. * Added Playwright coverage for duplicate speech-start prevention while a clip's browser playback request is still pending. * Existing public-demo E2E coverage already includes desktop/mobile rendering, failed battlefield art, service-worker readiness, and offline reload. * Ran `npx biome check tests/e2e/public-demo.e2e.ts`; it passed. **Files Changed**: * `tests/e2e/public-demo.e2e.ts` - added audio fallback and duplicate-start browser coverage. **BQC Fixes**: * Duplicate action prevention: browser test now asserts same-faction speech click duplication is suppressed while start is pending. * Failure path completeness: browser test now asserts blocked speech has visible fallback copy. *** ### Task T013 - Audit and update public-demo media runtime behavior **Started**: 2026-05-29 21:20 **Completed**: 2026-05-29 21:22 **Duration**: 2 minutes **Notes**: * Added duplicate-trigger prevention for background music while `play()` is starting. * Added duplicate-trigger prevention for same-faction speech while the browser playback request is in flight. * Added visible fallback toasts for unavailable or blocked speech playback. * Preserved relative media constants and the existing gesture-compatible music entry flow. * Ran `npx biome check public-demo/index.html public-demo/sw.js`; it passed. **Files Changed**: * `public-demo/index.html` - tightened speech/music in-flight state and fallback copy. **BQC Fixes**: * Duplicate action prevention: music and speech playback requests now ignore duplicate triggers while the start request is in flight. * Failure path completeness: speech failures surface visible fallback copy instead of silently disappearing. * Resource cleanup: replaced active speech playback releases listeners before starting a new clip. *** ### Task T012 - Enforce service-worker cache and lazy music policy **Started**: 2026-05-29 21:19 **Completed**: 2026-05-29 21:20 **Duration**: 1 minute **Notes**: * Added explicit `LAZY_MEDIA_ASSETS` for the six music tracks in `public-demo/sw.js`. * Added install-time validation that throws if a lazy music track is added to `SHELL_ASSETS`. * Kept `CACHE_VERSION` at `factionos-demo-v9` because the precache list did not change. * Ran `npm run battlefield:check`; it passed and confirmed 34 shell assets. **Files Changed**: * `public-demo/sw.js` - added lazy media exclusion list and install-time guard. **BQC Fixes**: * Contract alignment: service-worker runtime policy now has an in-file guard matching the checker config and docs policy. * Failure path completeness: invalid lazy precache entries fail service-worker install instead of silently inflating the shell cache. *** ### Task T011 - Validate catalog coverage or standalone exceptions **Started**: 2026-05-29 21:19 **Completed**: 2026-05-29 21:19 **Duration**: 1 minute **Notes**: * Added catalog-source validation for required record IDs and media path coverage. * Added conditional-record checks so current public-demo records with blockers cannot be marked `approved`. * The current catalog coverage path passes after adding Session 06 records; remaining checker failures are docs-reference gaps only. **Files Changed**: * `scripts/check-public-demo-media.mjs` - added catalog mapping and conditional record checks. * `apps/web/src/data/mediaCatalog.ts` - supplies the current conditional catalog records consumed by the checker. **BQC Fixes**: * Contract alignment: checker verifies declared config IDs against the app catalog source and release-state expectations. *** ### Task T010 - Validate public-demo inventory, budgets, durations, formats, and docs **Started**: 2026-05-29 21:19 **Completed**: 2026-05-29 21:19 **Duration**: 1 minute **Notes**: * Implemented media file validation for declared file existence, exact expected bytes, max-byte budgets, supported format extensions, and optional duration probes. * Implemented docs-reference validation against configured public-demo docs and lazy media exception docs. * Current checker output reports docs drift for individual speech and music files; that is expected until T016 updates docs. **Files Changed**: * `scripts/check-public-demo-media.mjs` - added file, duration, format, and docs-reference validation. **BQC Fixes**: * External dependency resilience: duration checks have bounded `ffprobe` execution and explicit failure/unsupported outcomes. *** ### Task T009 - Implement public-demo media check CLI orchestration **Started**: 2026-05-29 21:18 **Completed**: 2026-05-29 21:19 **Duration**: 1 minute **Notes**: * Implemented `--json`, `--help`, text output, deterministic issue sorting, stable issue codes, summary metrics, and nonzero exit behavior on errors. * Added explicit `EMPTY_INVENTORY`, `MEDIA_PROBE_FAILED`, and `UNSUPPORTED_TOOL` paths for empty, error, and missing-tool states. * Confirmed `npm run media:demo:check -- --help` routes through the CLI and `node scripts/check-public-demo-media.mjs --json` exits nonzero while docs references are intentionally incomplete. **Files Changed**: * `scripts/check-public-demo-media.mjs` - added CLI orchestration and reporting. **BQC Fixes**: * Failure path completeness: CLI returns stable summaries and nonzero exit codes for checker errors instead of silent failures. *** ### Task T008 - Add root media:demo:check command **Started**: 2026-05-29 21:18 **Completed**: 2026-05-29 21:18 **Duration**: 1 minute **Notes**: * Added `media:demo:check` next to the existing media gates in root `package.json`. * Ran `npm run media:demo:check -- --help` to confirm command routing. **Files Changed**: * `package.json` - added root public-demo media check script. **BQC Fixes**: * N/A - command wiring only. *** ### Task T007 - Define public-demo media Vitest fixtures **Started**: 2026-05-29 21:17 **Completed**: 2026-05-29 21:18 **Duration**: 1 minute **Notes**: * Added fixture coverage for cached media, lazy media, missing file, stale manifest expectations, unsafe paths, and workspace import markup. * Added two fixture sanity tests so the fixture file stays executable before the broader T017 assertions. * Ran `npx vitest run tests/publicDemoMedia.test.ts --config vitest.config.ts` and it passed with 2 tests. **Files Changed**: * `tests/publicDemoMedia.test.ts` - added public-demo media checker fixtures. **BQC Fixes**: * Contract alignment: fixture paths come from the checker config rather than ad hoc duplicated path strings where possible. *** ### Task T006 - Create public-demo media checker helpers **Started**: 2026-05-29 21:12 **Completed**: 2026-05-29 21:17 **Duration**: 5 minutes **Notes**: * Added checker helper exports for issue creation, path validation, inventory flattening, byte-budget validation, and full public-demo media check runs. * Implemented schema checks for config groups/files, repository-relative path validation, manifest parsing, service-worker cache parsing, docs references, catalog mapping, runtime boundary scans, and MP3 duration probing through bounded `ffprobe` calls. * Ran `node scripts/check-public-demo-media.mjs --json`; the checker executes and reports the expected current docs-reference drift for speech/music paths that T016 will document. **Files Changed**: * `scripts/check-public-demo-media.mjs` - added public-demo media checker helpers and validation flow. * `scripts/public-demo-media-config.mjs` - corrected speech cache entries to derive from declared runtime paths. **BQC Fixes**: * Trust boundary enforcement: unsafe absolute, remote, parent-directory, backslash, and `EXAMPLES/` paths are rejected before file access. * External dependency resilience: duration probing uses `ffprobe` with a timeout and an explicit unsupported-tool warning path. * Error information boundaries: issue details redact absolute paths and secret-like values before reporting. *** ### Task T005 - Add current public-demo media catalog records **Started**: 2026-05-29 21:10 **Completed**: 2026-05-29 21:12 **Duration**: 2 minutes **Notes**: * Added conditional app-facing catalog coverage for the public-demo showcase banner, click speech clips, and optional background music playlist. * Added demo-specific app catalog groups for speech, music, and showcase media. * Kept existing install icon, portrait, and battlefield records conditional or approved exactly as their current release gates require. * `npm --workspace apps/web run typecheck` passed. * Existing `apps/web/tests/mediaCatalog.test.ts` expectations now need the planned T018 update because the public-demo surface has three additional conditional records. **Files Changed**: * `apps/web/src/data/mediaCatalog.ts` - added conditional current public-demo records and timed MP3 output metadata. **BQC Fixes**: * Contract alignment: validated records with the existing protocol-backed test before deferring expectation updates to the planned catalog test task. *** ### Task T004 - Create public-demo media config **Started**: 2026-05-29 21:08 **Completed**: 2026-05-29 21:10 **Duration**: 2 minutes **Notes**: * Added explicit public-demo media groups for battlefield, icons, music, portraits, showcase, and speech. * Captured expected byte sizes, MP3 durations, cache policy, lazy music exceptions, docs references, manifest expectations, service-worker policy, safe path prefixes, runtime files, and required catalog record IDs. * Verified the config imports successfully and declares 6 groups with 37 media files. **Files Changed**: * `scripts/public-demo-media-config.mjs` - added declared public-demo media inventory and policy config. **BQC Fixes**: * Contract alignment: fixed config initialization order and hero list expansion before marking the task complete. *** ### Task T003 - Create security compliance artifact **Started**: 2026-05-29 21:07 **Completed**: 2026-05-29 21:08 **Duration**: 1 minute **Notes**: * Created the session security-compliance review with privacy, quarantine, cache, offline, and standalone-boundary requirements. * Confirmed the initial setup findings have no critical security issues. **Files Changed**: * `.spec_system/specs/phase04-session06-public-demo-media-parity-and-offline-loading/security-compliance.md` - created session review artifact. * `.spec_system/specs/phase04-session06-public-demo-media-parity-and-offline-loading/implementation-notes.md` - logged setup completion. **BQC Fixes**: * N/A - security planning artifact only. *** ### Task T002 - Record current public-demo media inventory and coverage gaps **Started**: 2026-05-29 21:06 **Completed**: 2026-05-29 21:07 **Duration**: 1 minute **Notes**: * Current public-demo inventory: 6 battlefield files / 668358 bytes, 5 portraits / 121189 bytes, 1 showcase image / 2994468 bytes, 16 speech clips / 1003733 bytes, 6 music tracks / 24895254 bytes. * Current service-worker cache version is `factionos-demo-v9`. * Current `SHELL_ASSETS` count is 34; speech clips are precached and background music tracks are intentionally excluded from precache. * `ffprobe` is available for duration checks. Speech clips range from about 0.91s to 2.93s; music tracks range from about 154.34s to 209.78s. * Existing catalog coverage includes approved battlefield runtime records, conditional portrait/install icon records, and blocked generated speech/full-app audio draft records. * Coverage gaps before this session: current public-demo speech clips, current public-demo music tracks, public-demo showcase art, and install icon manifest/cache policy need deterministic demo-specific checker coverage and clearer catalog/docs mapping. **Files Changed**: * `.spec_system/specs/phase04-session06-public-demo-media-parity-and-offline-loading/implementation-notes.md` - added inventory and gap evidence. **BQC Fixes**: * N/A - inventory evidence only. *** ## Task Log ### 2026-05-29 - Session Start **Environment verified**: * [x] Prerequisites confirmed * [x] Tools available * [x] Directory structure ready * [x] Database not applicable *** ### Task T001 - Verify prerequisites plus current public-demo files and gates **Started**: 2026-05-29 21:04 **Completed**: 2026-05-29 21:06 **Duration**: 2 minutes **Notes**: * Confirmed active session from spec-system analysis as `phase04-session06-public-demo-media-parity-and-offline-loading`. * Confirmed cross-cutting package context from `spec.md`. * Reviewed Session 02, Session 04, and Session 05 validation reports; all three prerequisite sessions passed. * Ran required spec-system prerequisite checks with `jq`, `git`, `node`, and `npm` available. * Ran current baseline media gates: `npm run battlefield:check`, `npm run media:visual:check`, and `npm run media:drafts:check`. * Baseline `media:visual:check` passed with existing conditional metadata/non-release blocker warnings only. **Files Changed**: * `.spec_system/specs/phase04-session06-public-demo-media-parity-and-offline-loading/implementation-notes.md` - created session notes and prerequisite evidence. **BQC Fixes**: * N/A - setup evidence only. *** --- # Agent Instructions This documentation is published with GitBook. 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