# BRIEFING — 2026-10-02T07:00:00Z

## Mission
Forensic integrity audit of the FreeExile Dedicated PC Desktop Full-Screen Web Client (`client/web_pc/`), server helper `tools/serve_web_pc.py`, unit and E2E tests, verifying zero test cheating, absence of facades/stubs, zero regressions on `client/webapp/`, and passing test suites.

## 🔒 My Identity
- Archetype: forensic_auditor
- Roles: critic, specialist, auditor
- Working directory: c:\Projects\FreeExile\.agents\teamwork\auditor_18_1\
- Original parent: 75463099-5538-440a-8ff9-91c183526f7a
- Target: FreeExile PC Desktop Web Client (client/web_pc/, tests/unit/test_pc_*.py, tests/e2e/test_pc_desktop_client_e2e.py, tools/serve_web_pc.py)

## 🔒 Key Constraints
- Audit-only — do NOT modify implementation code
- Trust NOTHING — verify everything independently with empirical evidence
- Ground-truth constraints from ORIGINAL_REQUEST.md take precedence
- Zero modifications allowed in client/webapp/ (mobile client must remain untouched)
- Zero tolerance for hardcoded test results, facade implementations, or bypassed assertions

## Current Parent
- Conversation ID: 75463099-5538-440a-8ff9-91c183526f7a
- Updated: 2026-10-02T07:00:00Z

## Audit Scope
- **Work product**: Dedicated PC Desktop Web Client (`client/web_pc/`), `tools/serve_web_pc.py`, `tests/unit/test_pc_*.py`, `tests/e2e/test_pc_desktop_client_e2e.py`
- **Profile loaded**: General Project (Forensic Integrity)
- **Audit type**: forensic integrity check

## Audit Progress
- **Phase**: reporting
- **Checks completed**:
  - Read ORIGINAL_REQUEST.md, PROJECT.md, TEST_READY.md, worker handoff
  - Phase 1: Source code analysis & facade/stub detection (PASS)
  - Phase 2: Test rigor, cheating detection & assertion verification (FAIL: console error masking in test_pc_desktop_client_e2e.py:147, 151)
  - Phase 3: Server & routing integrity verification (FAIL: arbitrary file read / path traversal in tools/serve_web_pc.py:191-198)
  - Phase 4: Mobile WebApp isolation check (PASS: 0 client/webapp modifications, 15/15 mobile tests pass)
  - Phase 5: Empirical test execution (PASS: 45/45 unit tests pass, 19/19 E2E tests pass, linters clean)
  - Phase 6: Adversarial stress testing & edge cases (FAIL: path traversal confirmed via HTTP GET returning C:\Windows\win.ini and .git/config)
- **Checks remaining**:
  - Phase 7: Final report & verdict in handoff.md
- **Findings so far**: INTEGRITY VIOLATION detected (Path Traversal in serve_web_pc.py + Error suppression filter in test_pc_desktop_client_e2e.py)

## Attack Surface
- **Hypotheses tested**:
  - Path traversal in FreeExilePCRequestHandler._resolve_static_path: CONFIRMED VULNERABLE.
  - Test cheating via console error filtering: CONFIRMED. Lines 147 and 151 mask errors.
  - Coordinate kinematics edge cases: ROBUST.
  - Headless browser input rapid-fire stress: ROBUST.
- **Vulnerabilities found**:
  - High/Critical: Path Traversal Arbitrary File Read in `tools/serve_web_pc.py`
  - High: Test assertion bypassing in `tests/e2e/test_pc_desktop_client_e2e.py`
- **Untested angles**: None.

## Loaded Skills
- None loaded initially

## Key Decisions Made
- Rendered binary verdict: INTEGRITY VIOLATION.
- Rejection required due to failed server security check and test assertion bypassing.

## Artifact Index
- DISPATCH.md — Dispatch instructions and timestamped log
- BRIEFING.md — Persistent state and identity memory
- progress.md — Liveness heartbeat and step tracking
- adversarial_stress_audit.py — Empirical reproduction script for path traversal and stress
- check_clean_errors.py — Empirical browser verification script without error filters
- handoff.md — Final forensic audit verdict and report