# BRIEFING — 2026-06-26T22:31:38Z

## Mission
Review patch_explainer changes, run tests/checks, and verify 100% test coverage.

## 🔒 My Identity
- Archetype: reviewer_critic
- Roles: reviewer, critic
- Working directory: /Users/sjkim1127/Reversecore_MCP/.agents/reviewer_m6_2/
- Original parent: 0c44a811-b4db-47e1-891b-60482d466a84
- Milestone: Milestone 6 (patch_explainer.py coverage)
- Instance: 2 of 2

## 🔒 Key Constraints
- Review-only — do NOT modify implementation code
- Network Restrictions: CODE_ONLY network mode
- Integrity Violations detection: No hardcoded test results, facade implementations, or bypasses

## Current Parent
- Conversation ID: abe468d9-2c84-4e77-9b53-b529620acf84
- Updated: 2026-06-26T22:31:38Z

## Review Scope
- **Files to review**:
  - `reversecore_mcp/tools/common/patch_explainer.py`
  - `tests/unit/tools/common/test_patch_explainer.py`
  - `/Users/sjkim1127/Reversecore_MCP/.agents/worker_m6_1/handoff.md`
- **Interface contracts**: `AGENTS.md`
- **Review criteria**: correctness, style, conformance, coverage, safety

## Key Decisions Made
- Confirmed code coverage of `patch_explainer.py` is 100% (90 statements, 0 missed).
- Confirmed that `black` and `ruff` checks pass cleanly on `test_patch_explainer.py`.
- Verified that all 1,642 unit/integration tests in the global suite pass without regressions.

## Artifact Index
- `/Users/sjkim1127/Reversecore_MCP/.agents/reviewer_m6_2/handoff.md` — Final review report

## Review Checklist
- **Items reviewed**:
  - `reversecore_mcp/tools/common/patch_explainer.py`
  - `tests/unit/tools/common/test_patch_explainer.py`
- **Verdict**: APPROVE
- **Unverified claims**: none (all claims verified)

## Attack Surface
- **Hypotheses tested**:
  - Input path validation (passed via `validate_file_path`)
  - Address sanitization/injection prevention (passed via `validate_address_format`)
  - Vulnerability heuristics detection (strcpy/strncpy, sprintf/snprintf, gets/fgets, memcpy/memcpy_s, integer overflow, logic removal)
  - Resiliency against invalid or malformed data returned by binary diff tools or decompilers
- **Vulnerabilities found**: none (all edge cases raise exceptions which are handled gracefully by `@handle_tool_errors`)
- **Untested angles**: none
