> 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-session04-visual-promotion-tooling-and-budgets/implementation-notes.md).

# Implementation Notes

**Session ID**: `phase04-session04-visual-promotion-tooling-and-budgets` **Package**: cross-cutting **Started**: 2026-05-29 19:55 **Last Updated**: 2026-05-29 20:25

***

## Session Progress

| Metric              | Value   |
| ------------------- | ------- |
| Tasks Completed     | 22 / 22 |
| Estimated Remaining | 0 hours |
| Blockers            | 0       |

***

## Task Log

### 2026-05-29 - Session Start

**Environment verified**:

* [x] Prerequisites confirmed by `.spec_system/scripts/check-prereqs.sh --json --env`
* [x] npm workspace manager available (`npm 10.5.1`)
* [x] Directory structure ready
* [x] No database prerequisites for this session

***

### Task T001 - Record prerequisite media gate outputs

**Started**: 2026-05-29 19:55 **Completed**: 2026-05-29 19:55 **Duration**: 1 minute

**Notes**:

* `npm run media:check` passed 23 media tooling checks, including sharp, SVGO, oxipng, FFmpeg, ffprobe, ExifTool, ImageMagick helper, AVIF encoder, atlas packer, WebP tooling, and web audio packages.
* `npm run battlefield:check` passed for 6 battlefield assets, 668358 app runtime bytes, 668358 public-demo runtime bytes, 15542218 reference bytes, `factionos-demo-v9`, and 34 service-worker shell assets.
* `npm run media:drafts:check` passed for `assets/generated/phase04/draft-generation-manifest.json`.

**Files Changed**:

* `.spec_system/specs/phase04-session04-visual-promotion-tooling-and-budgets/implementation-notes.md` - recorded prerequisite command outputs.

***

### Task T002 - Map catalog, draft manifest, and matrix scope

**Started**: 2026-05-29 19:55 **Completed**: 2026-05-29 19:56 **Duration**: 1 minute

**Notes**:

* S0402 catalog records in `apps/web/src/data/mediaCatalog.ts` cover battlefield runtime (`M04-001`, `M04-002`), generated battlefield references (`M04-003`), portraits (`M04-005`), app favicon/public-demo install icons (`M04-008`), and planned visual drafts for future battlefield additions plus HUD/achievement art (`M04-011`, `M04-030`).
* S0403 draft manifest entries relevant to visual promotion are `draft.visual.battlefield-reference-refresh` (`M04-003`, deferred), `draft.visual.future-battlefield-additions` (`M04-011`, `M04-031`, planned), `draft.visual.hud-style-study` (`M04-022`, `M04-030`, planned), `draft.visual.achievement-icons` (`M04-024`, `M04-030`, planned), `draft.visual.legacy-brand-rejection` (`M04-027`, rejected), and `draft.audit.unknown-provenance` (`M04-029`, deferred).
* S0404 matrix scope maps approved rows `M04-001`, `M04-002`, `M04-004`, `M04-021`, and `M04-023`; conditional visual rows `M04-003`, `M04-005` through `M04-010`; replacement/prototype/rejected/deferred rows `M04-022`, `M04-024` through `M04-027`; unknown row `M04-029`; and planned/deferred future visual rows `M04-011`, `M04-030`, and `M04-031`.
* Implementation plan: keep `scripts/check-battlefield-assets.mjs` authoritative for six current battlefield runtime files, add a broader explicit visual config for current inventory and non-release rows, validate safe repository paths before file probing, check mirrored public-demo/cache/docs paths, and treat all non-approved statuses as blocked unless explicit blocker context exists.

**Files Changed**:

* `.spec_system/specs/phase04-session04-visual-promotion-tooling-and-budgets/implementation-notes.md` - recorded implementation mapping from catalog, manifest, and matrix rows.

***

### Task T003 - Add root visual promotion command

**Started**: 2026-05-29 19:56 **Completed**: 2026-05-29 19:57 **Duration**: 1 minute

**Notes**:

* Added `npm run media:visual:check` as the root command for the visual promotion checker.
* The script target is `scripts/check-visual-media-promotion.mjs`, created in the following foundation tasks.

**Files Changed**:

* `package.json` - added `media:visual:check` root script entry.

***

### Task T004 - Create visual promotion config

**Started**: 2026-05-29 19:57 **Completed**: 2026-05-29 20:00 **Duration**: 3 minutes

**Notes**:

* Added an explicit visual promotion config with deterministic visual groups for battlefield runtime, battlefield references, portraits, brand/install icons, and showcase media.
* Declared dimensions, expected byte sizes, max byte budgets, metadata policy, docs references, public-demo mirrors/cache entries, safe path prefixes, and non-release visual records.
* Included non-release rows for planned/deferred/rejected/unknown visual draft and quarantine scenarios without adding any runtime media.

**Files Changed**:

* `scripts/media-visual-promotion-config.mjs` - created the visual promotion config used by the checker and tests.

***

### Task T005 - Create report and validation helpers

**Started**: 2026-05-29 20:00 **Completed**: 2026-05-29 20:02 **Duration**: 2 minutes

**Notes**:

* Added stable issue codes, reporter helpers, severity grouping, deterministic sorting, redacted detail formatting, text/JSON CLI result output, and explicit summary metrics.
* Confirmed helper exports load through a node smoke check.

**Files Changed**:

* `scripts/check-visual-media-promotion.mjs` - created report helpers, issue codes, summary formatting, and redaction boundaries.

***

### Task T006 - Implement repository-relative path validation

**Started**: 2026-05-29 20:02 **Completed**: 2026-05-29 20:03 **Duration**: 1 minute

**Notes**:

* Implemented `validateRepositoryPath` with schema checks for non-empty strings, forward-slash paths, absolute path rejection, remote URL rejection, parent-directory rejection, `EXAMPLES/` quarantine rejection, safe-prefix allowlist enforcement, and supported image extension validation.
* Smoke check confirmed absolute, remote, parent-directory, and `EXAMPLES/` paths are rejected.

**Files Changed**:

* `scripts/check-visual-media-promotion.mjs` - added repository path validation and explicit error mapping.

**BQC Fixes**:

* Trust boundary enforcement: path inputs are validated before file probing (`scripts/check-visual-media-promotion.mjs`).

***

### Task T007 - Implement image probe and metadata policy helpers

**Started**: 2026-05-29 20:02 **Completed**: 2026-05-29 20:03 **Duration**: 1 minute

**Notes**:

* Added `probeImage` using `sharp` metadata with a bounded timeout, file stat bytes, format normalization, dimensions, and embedded metadata detection.
* Added byte-budget and metadata policy validation helpers for stripped, pending, and not-applicable metadata states.
* Smoke check confirmed the battlefield background probes as WebP 1672x941.

**Files Changed**:

* `scripts/check-visual-media-promotion.mjs` - added image probe, byte-budget, and metadata policy helpers.

**BQC Fixes**:

* External dependency resilience: local image metadata probes are timeout wrapped with cleanup of the timer (`scripts/check-visual-media-promotion.mjs`).
* Failure path completeness: probe failures report stable issue codes without absolute paths (`scripts/check-visual-media-promotion.mjs`).

***

### Task T008 - Define visual promotion test fixtures

**Started**: 2026-05-29 20:03 **Completed**: 2026-05-29 20:04 **Duration**: 1 minute

**Notes**:

* Added top-level Vitest fixtures for approved, conditional, planned, missing-file, stale-cache, and quarantined path scenarios.
* Added fixture smoke assertions and quarantined path validator assertions; full coverage is expanded in T019.

**Files Changed**:

* `tests/mediaVisualPromotion.test.ts` - created visual promotion fixture scenarios.

***

### Task T009 - Implement visual promotion CLI orchestration

**Started**: 2026-05-29 20:04 **Completed**: 2026-05-29 20:06 **Duration**: 2 minutes

**Notes**:

* Implemented the `media:visual:check` CLI orchestration, `--json` output, help output, deterministic issue sorting, metrics, and nonzero exit on blocking errors.
* Added explicit config loading, empty config checks, image-tool availability handling, and failure summaries.

**Files Changed**:

* `scripts/check-visual-media-promotion.mjs` - added CLI orchestration and result handling.

**BQC Fixes**:

* Failure path completeness: all blocking states report stable issue codes and deterministic summaries (`scripts/check-visual-media-promotion.mjs`).

***

### Task T010 - Validate visual inventory files and output metadata

**Started**: 2026-05-29 20:04 **Completed**: 2026-05-29 20:06 **Duration**: 2 minutes

**Notes**:

* Implemented explicit file existence and probe checks for battlefield runtime, generated battlefield references, portraits, brand/install icons, showcase media, generated draft evidence, and non-release records.
* A JSON checker run reached 32 visual files and 10 non-release records without file-missing probe errors.

**Files Changed**:

* `scripts/check-visual-media-promotion.mjs` - added inventory validation.
* `scripts/media-visual-promotion-config.mjs` - tightened group blockers and docs path allowlist.

***

### Task T011 - Enforce byte budgets and dimensions

**Started**: 2026-05-29 20:05 **Completed**: 2026-05-29 20:06 **Duration**: 1 minute

**Notes**:

* Added exact byte drift checks, max byte budget checks, and expected dimension checks for all configured visual files.
* The current checker run completed without byte-budget or dimension errors.

**Files Changed**:

* `scripts/check-visual-media-promotion.mjs` - added budget and dimensions enforcement.

***

### Task T012 - Enforce visual metadata policy

**Started**: 2026-05-29 20:05 **Completed**: 2026-05-29 20:06 **Duration**: 1 minute

**Notes**:

* Added metadata policy handling for `stripped`, `pending`, and `not_applicable`.
* Runtime-approved files fail if embedded metadata is detected; conditional files emit explicit `METADATA_PENDING` warnings and remain non-release until blocker context clears.

**Files Changed**:

* `scripts/check-visual-media-promotion.mjs` - added metadata policy validation.

***

### Task T013 - Validate mirrors and public-demo service-worker cache coverage

**Started**: 2026-05-29 20:05 **Completed**: 2026-05-29 20:07 **Duration**: 2 minutes

**Notes**:

* Added deterministic SHA-256 mirror parity checks for app/public-demo shared visual media.
* Added public-demo service-worker `CACHE_VERSION`, `SHELL_ASSETS`, stale entry, and workspace-import boundary checks.
* A JSON checker run reached 12 mirrors and 15 visual cache entries without mirror or cache errors.

**Files Changed**:

* `scripts/check-visual-media-promotion.mjs` - added mirror parity and service-worker cache validation.

**BQC Fixes**:

* Contract alignment: public-demo mirror hashes, dimensions, formats, and cache entries are checked against declared config (`scripts/check-visual-media-promotion.mjs`).

***

### Task T014 - Validate stable docs and README path references

**Started**: 2026-05-29 20:07 **Completed**: 2026-05-29 20:11 **Duration**: 4 minutes

**Notes**:

* Added docs-reference validation for configured visual files, public-demo mirrors, and non-release evidence.
* Updated stable docs so the checker can enforce the current inventory and non-release evidence paths.
* `npm run media:visual:check` now passes with expected warnings for conditional metadata and blocked non-release records.

**Files Changed**:

* `scripts/check-visual-media-promotion.mjs` - added docs-reference validation.
* `docs/media-assets.md` - documented current visual inventory and promotion policy.
* `assets/README_assets.md` - documented current asset inventory covered by the visual gate.
* `assets/generated/phase04/README.md` - added the repository-relative draft manifest path.
* `docs/battlefield-3d.md` - documented `M04-026` quarantine/deferred context.
* `public-demo/README_public-demo.md` - updated the service-worker cache version and visual-gate note.

***

### Task T015 - Validate non-release blocker context

**Started**: 2026-05-29 20:06 **Completed**: 2026-05-29 20:11 **Duration**: 5 minutes

**Notes**:

* Added blocker enforcement for conditional, planned, deferred, needs-replacement, rejected, unknown, and generated draft visual records.
* Added draft manifest checks that verify configured generated visual records exist and carry release blockers.
* The current visual gate reports blocked non-release records as warnings and exits successfully because blocker context is explicit.

**Files Changed**:

* `scripts/check-visual-media-promotion.mjs` - added non-release blocker and draft-manifest validation.
* `scripts/media-visual-promotion-config.mjs` - declared non-release rows and blockers.

**BQC Fixes**:

* Error information boundaries: generated-draft checks report record ids and repository-relative manifest paths only (`scripts/check-visual-media-promotion.mjs`).

***

### Task T016 - Preserve battlefield parity behavior

**Started**: 2026-05-29 20:11 **Completed**: 2026-05-29 20:13 **Duration**: 2 minutes

**Notes**:

* Aligned `scripts/check-battlefield-assets.mjs` with the visual promotion config by deriving the battlefield runtime manifest and byte budgets from `scripts/media-visual-promotion-config.mjs`.
* Preserved the existing six-asset parity, hash, byte-budget, reference-byte, service-worker, workspace-import, and docs behavior.
* `npm run battlefield:check` passed after the alignment with 6 assets, 668358 app runtime bytes, 668358 public-demo runtime bytes, 15542218 reference bytes, `factionos-demo-v9`, and 34 service-worker shell assets.

**Files Changed**:

* `scripts/check-battlefield-assets.mjs` - derives battlefield assets, budgets, and expected cache version from visual promotion config.
* `scripts/media-visual-promotion-config.mjs` - added runtime battlefield reference paths used by the battlefield parity gate.

***

### Task T017 - Document visual promotion command and remediation

**Started**: 2026-05-29 20:13 **Completed**: 2026-05-29 20:14 **Duration**: 1 minute

**Notes**:

* Documented `npm run media:visual:check`, the config-driven inventory model, and common remediation for path, file, budget, metadata, mirror/cache, and docs failures.

**Files Changed**:

* `scripts/README_scripts.md` - added visual promotion command usage and failure remediation.

***

### Task T018 - Update media and assets docs

**Started**: 2026-05-29 20:07 **Completed**: 2026-05-29 20:15 **Duration**: 8 minutes

**Notes**:

* Added the Session 04 visual promotion flow, current visual inventory, blocker policy, metadata policy, public-demo cache rule, generated-draft non-runtime boundary, and quarantine notes.
* Updated public-demo docs to the current `factionos-demo-v9` cache version.

**Files Changed**:

* `docs/media-assets.md` - added visual promotion inventory, policy, and current blocker/cache rules.
* `assets/README_assets.md` - added promotion inventory and non-runtime draft boundary.
* `assets/generated/phase04/README.md` - added the full draft manifest path used by promotion tooling.
* `docs/battlefield-3d.md` - added `M04-026` quarantine context.
* `public-demo/README_public-demo.md` - updated cache version and visual gate guidance.

***

### Task T019 - Add Vitest coverage for visual promotion helpers

**Started**: 2026-05-29 20:15 **Completed**: 2026-05-29 20:17 **Duration**: 2 minutes

**Notes**:

* Added focused Vitest coverage for config ordering, unique file ids, non-approved blocker requirements, path rejection, byte drift and budget report codes, absolute-path redaction, blocked draft semantics, and service-worker cache version drift.
* `npx vitest run tests/mediaVisualPromotion.test.ts --config vitest.config.ts` passed with 9 tests.

**Files Changed**:

* `tests/mediaVisualPromotion.test.ts` - expanded media visual promotion coverage.

***

### Task T020 - Include top-level media promotion tests in Vitest

**Started**: 2026-05-29 20:16 **Completed**: 2026-05-29 20:17 **Duration**: 1 minute

**Notes**:

* Added `tests/**/*.test.ts` to the node Vitest project include list so top-level repository tooling tests run.
* Verified the focused media promotion test file is discovered and passes.

**Files Changed**:

* `vitest.config.ts` - included top-level repository tests in the node project.

***

### Task T021 - Run focused visual promotion validation

**Started**: 2026-05-29 20:17 **Completed**: 2026-05-29 20:18 **Duration**: 1 minute

**Notes**:

* `npm run media:visual:check` passed. It checked 5 groups, 32 files, 12 mirrors, 15 service-worker cache entries, 7 docs, and 10 non-release records. It reported 33 expected warnings for conditional metadata and blocked non-release records.
* `npm run battlefield:check` passed for 6 assets, 668358 app runtime bytes, 668358 public-demo runtime bytes, 15542218 reference bytes, `factionos-demo-v9`, and 34 service-worker shell assets.
* `npm run media:drafts:check` passed for `assets/generated/phase04/draft-generation-manifest.json`.
* `npx vitest run tests/mediaVisualPromotion.test.ts --config vitest.config.ts` passed with 9 tests.

**Files Changed**:

* `.spec_system/specs/phase04-session04-visual-promotion-tooling-and-budgets/implementation-notes.md` - recorded focused validation evidence.

***

### Task T022 - Run final format, lint, ASCII/LF, and notes validation

**Started**: 2026-05-29 20:18 **Completed**: 2026-05-29 20:25 **Duration**: 7 minutes

**Notes**:

* Applied Biome formatting to touched code and test files.
* `npm run format:check` passed across the configured workspace targets.
* `npm run lint` passed across the configured workspace targets.
* `npm test` passed: 122 test files passed, 1 skipped; 1923 tests passed, 1 skipped.
* `npm run media:visual:check` passed after formatting with the expected 33 warnings for conditional metadata and blocked non-release records.
* ASCII scan found no non-ASCII characters in touched session files.
* CRLF scan found no CR line endings in touched session files.
* Task checklist and implementation notes were updated to 22 / 22 complete.

**Files Changed**:

* `.spec_system/specs/phase04-session04-visual-promotion-tooling-and-budgets/implementation-notes.md` - recorded final validation evidence.
* `.spec_system/specs/phase04-session04-visual-promotion-tooling-and-budgets/tasks.md` - marked final task and completion checklist.

***


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