# BRIEFING — 2026-10-02T07:38:00Z

## Mission
Forensic Integrity Re-Audit of FreeExile PC Desktop Web Client following worker_iter4 remediation. Verify server security, test rigor, genuine DOM/audio fixes, zero mobile regressions, and execution of all test suites and linters.

## 🔒 My Identity
- Archetype: forensic_auditor
- Roles: [critic, specialist, auditor]
- Working directory: c:\Projects\FreeExile\.agents\teamwork\auditor_18_2
- Original parent: 75463099-5538-440a-8ff9-91c183526f7a (orchestrator_18)
- Target: PC Desktop Web Client remediation (Milestone 1 Gate)

## 🔒 Key Constraints
- Audit-only — do NOT modify implementation code
- Trust NOTHING — verify everything independently with empirical evidence
- ORIGINAL_REQUEST.md constraints take precedence over dispatch instructions
- Single failure = INTEGRITY VIOLATION verdict; all checks pass = CLEAN verdict
- Report must follow 5-Component Handoff Protocol in handoff.md

## Current Parent
- Conversation ID: 75463099-5538-440a-8ff9-91c183526f7a
- Updated: 2026-10-02T07:38:00Z

## Audit Scope
- **Work product**: `client/web_pc/`, `tools/serve_web_pc.py`, `tests/`
- **Profile loaded**: General Project (Development Mode)
- **Audit type**: Forensic integrity re-audit (post-remediation)

## Audit Progress
- **Phase**: reporting
- **Checks completed**:
  1. Inspect tools/serve_web_pc.py for _is_safe_child containment (VERIFIED)
  2. Empirically test path traversal vectors against live server (VERIFIED: 16/16 vectors return 404)
  3. Inspect tests/e2e/test_pc_desktop_client_e2e.py for suppression filter purge and genuine assertions (VERIFIED)
  4. Verify genuine DOM (#badge-iframe) and audio alias (playWeaponSlash) implementations (VERIFIED)
  5. Verify zero mobile regressions in client/webapp/ (VERIFIED: 15/15 unit tests pass)
  6. Run full unit and E2E test suites (VERIFIED: 45/45 unit pass, 21/21 E2E pass)
  7. Run code and i18n hygiene linters (VERIFIED: i18n strict pass, all PC files <= 350 lines)
  8. Render verdict: CLEAN
- **Findings so far**: All 6 remediation items verified cleanly. No regressions or cheats detected.

## Attack Surface
- **Hypotheses tested**:
  - Can path traversal bypass _is_safe_child via URL encodings (%2e%2e, %252e%252e), drive letters (C:), backslashes, or relative prefixes? -> TESTED EMPIRICALLY: All 16 vectors strictly returned 404.
  - Are there console error filters in test_pc_desktop_client_e2e.py? -> INSPECTED: All filters ('404', 'keys is not defined', 'hudOrbs', 'api/map') have been completely removed.
  - Does #badge-iframe exist in HTML and prevent null dereference during dodge expiry? -> TESTED IN BROWSER: #badge-iframe is present, i-frame expires with 0 console/page errors.
  - Is playWeaponSlash properly aliased on sfxEngine and callable without errors? -> TESTED IN BROWSER: Function exists and callable without throwing.
  - Are there any mobile regressions in client/webapp/? -> TESTED: 15/15 mobile tests pass, mobile chassis intact.
- **Vulnerabilities found**: None. Previous vulnerabilities successfully eliminated.
- **Untested angles**: None within milestone scope.

## Loaded Skills
- None

## Key Decisions Made
- Confirmed path traversal containment via direct HTTP socket fuzzing
- Confirmed DOM and audio engine integration via headless browser Playwright session
- Confirmed zero console error runtime under live user interactions

## Artifact Index
- `.agents/teamwork/auditor_18_2/test_security_audit.py` — Security fuzzing harness for path traversal
- `.agents/teamwork/auditor_18_2/test_dom_audio_audit.py` — Live browser test for badge-iframe and audio aliasing
- `.agents/teamwork/auditor_18_2/handoff.md` — Final forensic audit report