# BRIEFING — 2026-10-02T07:00:00Z

## Mission
Adversarially stress-test the PC Desktop Web Client display, viewport scaling, multi-resolution resilience (16:9, 16:10, 21:9 Ultrawide), zero mobile artifacts, rapid in-place 9-language cycling, dual-docking modals, and zero console/network 404 errors with rigorous empirical evidence.

## 🔒 My Identity
- Archetype: teamwork_preview_challenger
- Roles: critic, specialist
- Working directory: c:\Projects\FreeExile\.agents\teamwork\challenger_18_2\
- Original parent: orchestrator_18 (75463099-5538-440a-8ff9-91c183526f7a)
- Milestone: PC Desktop Web Client Verification (Milestone 18)
- Instance: 1 of 1

## 🔒 Key Constraints
- Review-only — do NOT modify implementation code
- Run all tests and stress harnesses empirically — do NOT trust claims or logs without reproduction
- If a bug cannot be reproduced empirically, it does not count
- Strictly report empirical metrics and render an objective APPROVE or REJECT verdict

## Current Parent
- Conversation ID: 75463099-5538-440a-8ff9-91c183526f7a
- Updated: not yet

## Review Scope
- **Files to review**:
  - `client/web_pc/` (index.html, styles, desktop JS modules)
  - `tests/unit/test_pc_web_client_layout.py`
  - `tests/e2e/test_pc_desktop_client_e2e.py`
  - `c:\Projects\FreeExile\.agents\teamwork\worker_iter3\handoff.md`
- **Interface contracts**: `PROJECT.md`, `TEST_READY.md`, `TEST_INFRA.md`
- **Review criteria**: 100vw x 100vh with 0 scrollbars across 16:9, 16:10, 21:9 Ultrawide; 0 mobile elements; rapid in-place 9-language cycling without reload; simultaneous dual-docking modals; 0 console errors and 0 HTTP 404s.

## Key Decisions Made
- Executed `adversarial_resilience_test.py` across 12 resolutions, dynamic resize jitter, 18 rapid 9-language transitions, dual modal docking, and live combat interaction.
- Verified display resilience, zero scrollbars, zero mobile artifacts, clean dual docking, and zero HTTP 404s.
- Rendered empirical verdict: **REJECT** due to discovering 2 uncaught JavaScript runtime exceptions during combat attack and dodge roll i-frame expiration.

## Artifact Index
- `c:\Projects\FreeExile\.agents\teamwork\challenger_18_2\BRIEFING.md` — persistent memory
- `c:\Projects\FreeExile\.agents\teamwork\challenger_18_2\progress.md` — liveness heartbeat
- `c:\Projects\FreeExile\.agents\teamwork\challenger_18_2\adversarial_resilience_test.py` — adversarial test harness
- `c:\Projects\FreeExile\.agents\teamwork\challenger_18_2\trace_errors.py` — isolated traceback repro script
- `c:\Projects\FreeExile\.agents\teamwork\challenger_18_2\empirical_stress_report.json` — raw empirical metrics
- `c:\Projects\FreeExile\.agents\teamwork\challenger_18_2\handoff.md` — final handoff report

## Attack Surface
- **Hypotheses tested**:
  - 100vw x 100vh with 0 scrollbars across 16:9, 16:10, 21:9 Ultrawide, 32:9, 4:3 -> PASS (12/12 passed).
  - Absence of all mobile chassis and touch artifacts -> PASS (0 frames, 0 bars, joystick hidden).
  - Rapid in-place 9-language cycling without reload or corruption -> PASS (18/18 passed, navCount=1).
  - Simultaneous dual-docking modal clearance -> PASS (1033.2px center clearance).
  - Asset routing & zero 404s -> PASS (0 404s, atlas decoded 1024x1024).
  - Browser console cleanliness during live gameplay -> FAIL (2 uncaught exceptions reproduced).
- **Vulnerabilities found**:
  1. `TypeError: sfxEngine.playWeaponSlash is not a function` in `combat_skills.js:309` (invoked via RMB/Key R).
  2. `TypeError: Cannot read properties of null (reading 'classList')` in `canvas_renderer.js:219` (invoked when dodge roll i-frame expires, due to missing `#badge-iframe` in `web_pc/index.html`).
- **Untested angles**:
  - Multi-client WebSocket state broadcast over real network.

## Loaded Skills
- None specified in dispatch