# BRIEFING — 2026-06-26T22:29:05Z

## Mission
Forensic audit of patch_explainer fixes and test suite for Milestone 6 coverage improvements.

## 🔒 My Identity
- Archetype: forensic_auditor
- Roles: [critic, specialist, auditor]
- Working directory: /Users/sjkim1127/Reversecore_MCP/.agents/auditor_m6_1/
- Original parent: 0c44a811-b4db-47e1-891b-60482d466a84
- Target: Milestone 6 (patch_explainer.py coverage)

## 🔒 Key Constraints
- Audit-only — do NOT modify implementation code
- Trust NOTHING — verify everything independently
- Integrity mode: development

## Current Parent
- Conversation ID: 0c44a811-b4db-47e1-891b-60482d466a84
- Updated: 2026-06-26T22:29:05Z

## Audit Scope
- **Work product**: `reversecore_mcp/tools/common/patch_explainer.py` and `tests/unit/tools/common/test_patch_explainer.py`
- **Profile loaded**: General Project
- **Audit type**: forensic integrity check

## Audit Progress
- **Phase**: reporting
- **Checks completed**:
  - Phase 1: Source Code Analysis
    - Hardcoded output detection (PASS)
    - Facade detection (PASS)
    - Pre-populated artifact detection (PASS)
  - Phase 2: Behavioral Verification
    - Build and run (PASS)
    - Output verification (PASS)
    - Dependency audit (PASS)
- **Checks remaining**:
  - None
- **Findings so far**: CLEAN

## Key Decisions Made
- Initiate audit under Development mode.
- Perform empirical validation of unit test execution and coverage percentage.
- Verify absence of cheating, facades, or fake results.

## Attack Surface
- **Hypotheses tested**:
  - Hypothesis 1: The `patch_explainer.py` implementation contains facade/dummy methods that return hardcoded strings for specific inputs. Checked `explain_patch` and `_generate_explanation` implementations; they use genuine heuristic rules and standard diff libraries. (Result: CLEAN)
  - Hypothesis 2: The tests cheat by mocking and asserting hardcoded expected values that are not computed. Verified that the test mocks the external dependency `diff_binaries` and `r2_decompile`, but asserts expected behavior of the heuristic parser `_generate_explanation` under different inputs, testing genuine functionality. (Result: CLEAN)
  - Hypothesis 3: Pre-populated verification artifacts or log files exist in the workspace. Found `test_output.log` and `crash_triage_test_output.log`, but verified they are diagnostic error tracebacks from development, not fake verification results. (Result: CLEAN)
- **Vulnerabilities found**: None
- **Untested angles**: Behavior when `diff_binaries` returns unexpected non-dict format (e.g. if the result format changes). However, standard error handling/guards are in place.

## Loaded Skills
- No skills loaded.

## Artifact Index
- `/Users/sjkim1127/Reversecore_MCP/.agents/auditor_m6_1/BRIEFING.md` — Auditing state and mission briefing
- `/Users/sjkim1127/Reversecore_MCP/.agents/auditor_m6_1/ORIGINAL_REQUEST.md` — Incoming request log
- `/Users/sjkim1127/Reversecore_MCP/.agents/auditor_m6_1/progress.md` — Audit step tracking
