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# Implementation Summary

**Session ID**: `phase37-session01-g8-runtime-fx` **Completed**: 2026-06-29 **Duration**: 3-4 hours

***

## Overview

Closed Phase 37 Session 01 by packing, wiring, testing, and documenting the G8 AI Rogue runtime visual batch. The session added readable combat FX, status overlays, HUD pips, fog/reveal pieces, high-contrast markers, and reduced-motion static frames while keeping gameplay simulation, balance, public-demo boundaries, remote-loading posture, and audio unchanged.

***

## Deliverables

### Files Created

| File                                                                           | Purpose                                    | Lines |
| ------------------------------------------------------------------------------ | ------------------------------------------ | ----- |
| `.spec_system/specs/phase37-session01-g8-runtime-fx/spec.md`                   | Session specification and scope guardrails | 345   |
| `.spec_system/specs/phase37-session01-g8-runtime-fx/tasks.md`                  | 22-task execution checklist                | 149   |
| `.spec_system/specs/phase37-session01-g8-runtime-fx/implementation-notes.md`   | G8 implementation ledger and evidence      | 941   |
| `.spec_system/specs/phase37-session01-g8-runtime-fx/code-review.md`            | Code review and repair report              | 172   |
| `.spec_system/specs/phase37-session01-g8-runtime-fx/security-compliance.md`    | Security and GDPR review                   | 94    |
| `.spec_system/specs/phase37-session01-g8-runtime-fx/validation.md`             | Validation report                          | 287   |
| `.spec_system/specs/phase37-session01-g8-runtime-fx/IMPLEMENTATION_SUMMARY.md` | Session closeout summary                   | \~110 |

### Files Modified

| File                                                                              | Changes                                                                          |
| --------------------------------------------------------------------------------- | -------------------------------------------------------------------------------- |
| `docs/ongoing-projects/generated/ai-rogue-visual-audio-assets/crop-manifest.json` | Added accepted/rejected G8 crop decisions with no-baked-text review.             |
| `src/assets/ai-rogue/gameplay-atlas.png`                                          | Regenerated gameplay atlas with accepted G8 runtime frames.                      |
| `src/assets/ai-rogue/gameplay-atlas.json`                                         | Updated gameplay atlas metadata to 197 frames.                                   |
| `src/assets/ai-rogue/ui-atlas.png`                                                | Regenerated UI atlas with G8 status pips.                                        |
| `src/assets/ai-rogue/ui-atlas.json`                                               | Updated UI atlas metadata to 92 frames.                                          |
| `docs/extensions/ai-rogue/generated/ai-rogue-production-atlas-preview.png`        | Regenerated docs-only atlas preview.                                             |
| `src/extensions/ai-rogue/runtime/types-assets.ts`                                 | Added G8 frame-name unions and frame groups.                                     |
| `src/extensions/ai-rogue/runtime/assets.ts`                                       | Added required G8 gameplay/UI frame validation.                                  |
| `src/extensions/ai-rogue/runtime/status.ts`                                       | Added status visual mappings and helper lookups.                                 |
| `src/extensions/ai-rogue/runtime/render-model.ts`                                 | Wired combat, status, fog, reveal, high-contrast, and reduced-motion projection. |
| `src/extensions/ai-rogue/runtime/render-hud.ts`                                   | Added HUD status-pip frame presentation.                                         |
| `src/extensions/ai-rogue/runtime/effects.ts`                                      | Routed event-driven G8 impact, repair, cleanse, shield, and static variants.     |
| `src/extensions/ai-rogue/runtime/effects-transient.ts`                            | Added cleanup-safe transient G8 frame handling.                                  |
| `src/extensions/ai-rogue/runtime/renderer-layers.ts`                              | Preserved presentation preference handling for visual variants.                  |
| `src/extensions/ai-rogue/runtime/__tests__/assets.test.ts`                        | Added atlas contract and required-frame coverage.                                |
| `src/extensions/ai-rogue/runtime/__tests__/render-model.test.ts`                  | Added render projection coverage for G8 variants.                                |
| `src/extensions/ai-rogue/runtime/__tests__/status-expanded.test.ts`               | Added status visual mapping coverage.                                            |
| `tests/e2e/ai-rogue-runtime.spec.ts`                                              | Added desktop runtime visual proof.                                              |
| `tests/e2e/ai-rogue-mobile.spec.ts`                                               | Added mobile runtime visual proof.                                               |
| `docs/extensions/ai-rogue/visual-assets.md`                                       | Documented atlas counts, G8 decisions, validation evidence, and caveats.         |
| `.spec_system/state.json`                                                         | Marked the session complete and Phase 37 in progress.                            |
| `.spec_system/PRD/phase_37/PRD_phase_37.md`                                       | Updated tracker to 1/6 sessions complete.                                        |
| `README.md`                                                                       | Bumped visible project version to 0.5.65.                                        |
| `package.json`                                                                    | Bumped package version to 0.5.65.                                                |
| `docs/CHANGELOG.md`                                                               | Added Phase 37 Session 01 closeout entry.                                        |

***

## Technical Decisions

1. **Preserve the two-atlas model**: The accepted G8 frames fit in the existing gameplay and UI atlases, avoiding a third runtime atlas and extra loader surface.
2. **Keep visuals presentation-only**: Frame choice derives from existing snapshots, statuses, preferences, and events, preserving deterministic simulation and balance behavior.
3. **Reject risky source symbols**: Skull, exclamation-like, red scanline, and merged icon candidates remain rejected to avoid baked text, punctuation, or misleading runtime semantics.
4. **Use preference-equivalent variants**: High-contrast and reduced-motion paths select shape-first or static alternatives that keep the same gameplay meaning.

***

## Test Results

| Metric           | Value            |
| ---------------- | ---------------- |
| Focused Vitest   | 64/64 passed     |
| Full Vitest      | 4416/4416 passed |
| Playwright       | 17/17 passed     |
| Typecheck        | Passed           |
| Lint             | Passed           |
| Format Check     | Passed           |
| Markdown Lint    | Passed           |
| Asset Size Check | Passed           |
| Coverage         | Not reported     |

***

## Lessons Learned

1. The generated G8 sheet works best when treated as a source library, not a wholesale import; several symbols needed rejection to preserve product clarity.
2. Browser proof is required for visual asset work because atlas metadata can pass while runtime scale, z-order, or preference variants still fail.
3. Exhaustive typed frame contracts and required-frame tests caught the safest boundary between generated assets and runtime rendering.

***

## Future Considerations

Items for future sessions:

1. Continue Phase 37 with G4 status and equipment icons.
2. Keep no-baked-text review mandatory for G3, G4, G5, G6, and G7 source candidates.
3. Reuse the G8 preference-equivalence pattern for later high-contrast and reduced-motion visual additions.

***

## Session Statistics

* **Tasks**: 22 completed
* **Files Created**: 7
* **Files Modified**: 25 session closeout and deliverable files, plus existing archive/documentation changes already present in the working tree
* **Tests Added**: 5 modified focused/browser suites
* **Blockers**: 0 resolved


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