# BRIEFING — 2026-09-05T21:06:00Z

## Mission
Conduct an independent, adversarial architectural and security review of the HAD Digital MVP skeleton per ORIGINAL_REQUEST.md, verify integrity, test suite execution, PyInstaller packaging, SQLite persistence, and issue an evidence-based verdict.

## 🔒 My Identity
- Archetype: reviewer_critic
- Roles: reviewer, critic
- Working directory: c:\AI Projects\Kais Project\.agents\reviewer_gate_2
- Original parent: 8c700e5d-87a4-4452-ab59-6fc2e8946b0d
- Milestone: Gate 2 Architectural and Security Review
- Instance: 1 of 1

## 🔒 Key Constraints
- Review-only — do NOT modify implementation code
- Actively check for integrity violations: hardcoded test outputs, dummy implementations, shortcuts, fabricated logs, self-certification
- Explicit verdict required: APPROVE or REQUEST_CHANGES
- Send completion message to parent when done

## Current Parent
- Conversation ID: 8c700e5d-87a4-4452-ab59-6fc2e8946b0d
- Updated: 2026-09-05T21:06:00Z

## Review Scope
- **Files to review**:
  - `MVP/app.py`
  - `MVP/config_manager.py`
  - `MVP/database.py`
  - `MVP/user_store.py`
  - `MVP/ctcae_engine.py`
  - `MVP/alert_engine.py`
  - `MVP/audit_logger.py`
  - `MVP/static/*`
  - `04_Build/build_exe.py`
  - `04_Build/HAD Digital.spec`
  - `05_Test/verify_mvp.py`
  - `05_Test/*`
  - `dist/HAD Digital.exe`
- **Interface contracts**: `ORIGINAL_REQUEST.md`, `TEST_READY.md`, `MVP_PLAN.md`
- **Review criteria**: correctness, security, persistence decoupling, PyInstaller packaging, zero-dependency guarantee, test verification

## Review Checklist
- **Items reviewed**:
  - `ORIGINAL_REQUEST.md` (R1, R2, R3, AC1-AC8)
  - `MVP/config_manager.py` (Persistence decoupling & _MEIPASS handling)
  - `MVP/app.py` (ThreadingHTTPServer, routing, RBAC, static server security)
  - `MVP/database.py` (WAL mode, foreign keys, thread-local connections)
  - `MVP/user_store.py` (hashlib.scrypt, 5-fail lockout)
  - `MVP/ctcae_engine.py` & `MVP/alert_engine.py` (CTCAE rule logic, alerting)
  - `MVP/static/*` (HTML5 SPA shell, CSS, vanilla JS)
  - `04_Build/build_exe.py` & `04_Build/HAD Digital.spec` (PyInstaller packaging, exclusions, size)
  - `05_Test/verify_mvp.py` (Programmatic acceptance runner)
  - `05_Test/` (94-test pytest suite)
- **Verdict**: APPROVE
- **Unverified claims**: None. All claims independently verified via automated execution and adversarial testing.

## Attack Surface
- **Hypotheses tested**:
  - Path traversal in static file server: PASSED (blocked with HTTP 403 / 404)
  - SQLite persistence across executable restart: PASSED (verified data persists in separate `data/had.db`)
  - Zero runtime dependencies: PASSED (AST analysis confirmed 0 third-party packages in MVP)
  - Multithreaded concurrency stress: PASSED (20 concurrent threads in WAL mode handled cleanly)
  - Insecure Direct Object Reference (IDOR): FAILED (patient can access other patients' records via parameterized endpoints; logged as Finding 1)
  - Windows child process cleanup: FAILED (`verify_mvp.py:cleanup()` leaves orphan child processes locking .exe; logged as Finding 2)
- **Vulnerabilities found**:
  - Major Finding 1: IDOR on patient endpoints (`/api/reports`, `/api/patients/{id}`, `/api/timeline`, `/api/treatment-plan`, `/api/export/summary`)
  - Major Finding 2: Windows PyInstaller child process leak on termination in `verify_mvp.py`
  - Minor Finding 3: Dead/prototype files in `04_Build/` (`database.py`, `server.py`)
  - Minor Finding 4: UTF-8 BOM present in 13 source files
- **Untested angles**: Hardware failure during WAL commit, HTTPS/TLS termination (out of scope for local-only MVP).

## Key Decisions Made
- Confirmed zero integrity violations: no cheating, no hardcoded mocks, no fake logs.
- Executed all 3 required test commands (`verify_mvp.py --source`, `verify_mvp.py --exe`, `pytest 05_Test/`) with 100% pass rate.
- Issued verdict APPROVE for Gate 2 foundational skeleton with concrete remediation guidance for the findings.

## Artifact Index
- `.agents/reviewer_gate_2/BRIEFING.md` — persistent memory
- `.agents/reviewer_gate_2/progress.md` — heartbeat and progress tracker
- `.agents/reviewer_gate_2/handoff.md` — final gate 2 review handoff report