# Forensic Audit & Handoff Report - 2026-06-27T02:37:00+09:00

## Forensic Audit Report

**Work Product**: `reversecore_mcp/tools/analysis/lief_tools.py` and `tests/unit/tools/analysis/test_lief_tools.py`
**Profile**: General Project
**Verdict**: CLEAN

### Phase Results
- **Hardcoded Output Detection**: PASS — The source code does not contain hardcoded results or bypasses matching specific test inputs.
- **Facade Detection**: PASS — The implementation genuinely parses binaries using the LIEF library API and handles process isolation and limits dynamically.
- **Pre-populated Artifact Detection**: PASS — No pre-populated logs or artifacts faking test execution were found.
- **Self-certifying Tests**: PASS — The test suite utilizes standard mocking configurations (`unittest.mock.MagicMock` and `patch`) to simulate environments without CLI dependencies (conforming to R2: Isolated Unit Testing), and runs behavior checks on real binaries via integration tests.
- **Dependency Audit**: PASS — LIEF library is used as a core third-party library for parsing PE/ELF structures in a safe, process-isolated environment, which is permitted in Development Mode.

---

## 5-Component Handoff Report

### 1. Observation
- **File Paths and Lines Checked**:
  - `reversecore_mcp/tools/analysis/lief_tools.py`: Checked parsing functions `parse_binary_with_lief` (lines 277-376), mitigation extraction `_extract_mitigations` (lines 33-154), symbols extraction `_extract_symbols` (lines 156-218), and sections extraction `_extract_sections` (lines 16-30).
  - `tests/unit/tools/analysis/test_lief_tools.py`: Checked unit tests covering extraction logic and edge cases.
- **Git Diff & Modifications**:
  - Ran `git diff reversecore_mcp/tools/analysis/lief_tools.py`. Found LIEF compatibility alias logic (lines 45-73) and correct Python standard library exception mapping from `concurrent.futures.ProcessBrokenExecutor` to `BrokenProcessPool` (lines 350-358).
  - Ran `git diff tests/unit/tools/analysis/test_lief_tools.py`. Found unit test additions testing file size warnings, timeout handling, and exception logic.
- **Test Command Run**:
  - Command: `pytest tests/unit/tools/analysis/test_lief_tools.py -v`
  - Output: `30 passed in 2.72s`, coverage for `lief_tools.py` is at `99%`.
  - Integration Test Command: `pytest tests/integration/test_mcp_real_binary_tools.py -v`
  - Output: `6 passed, 13 skipped in 12.70s` (the LIEF integration test `test_parse_binary_with_lief_tool` successfully PASSED).

### 2. Logic Chain
- **Step 1 (Source Genuineness)**: Observation of `lief_tools.py` shows that the tool takes arbitrary paths, resolves them, checks size, and runs `lief.parse(file_path)` inside a child process. This proves the logic runs dynamically rather than returning hardcoded constants.
- **Step 2 (Robust Mocks)**: Observation of `test_lief_tools.py` shows mocks are used to mock `lief.ELF.Binary` and `lief.PE.Binary` instances, which is explicitly permitted in the rules and requested under R2 ("utilizing robust mocking ... for external libraries").
- **Step 3 (Compatibility & Resilience)**: The git diff reveals that the implementation handles dynamic fallback attributes for newer/older LIEF versions and handles segmentation faults by catching `BrokenProcessPool`.
- **Step 4 (Test Success)**: Verifying output of pytest commands shows unit and integration tests successfully execute and pass with 99% coverage on the target implementation file.
- **Conclusion Support**: Based on Steps 1 to 4, the work product contains a genuine, functional implementation of the target deliverable, conforming to the Development Mode rules.

### 3. Caveats
- Checked only `reversecore_mcp/tools/analysis/lief_tools.py` and its direct unit tests, as specified in the request. Did not audit `capa_tools.py` or other modified files in detail, though they were confirmed to pass their respective test suite runs.

### 4. Conclusion
- The target implementation is fully authentic and implements high-quality error handling (including subprocess-isolation, OOM prevention thresholds, and segmentation fault resilience). No integrity violations were found. Verdict: **CLEAN**.

### 5. Verification Method
To verify these results independently:
1. Run the unit tests to ensure they pass:
   ```bash
   pytest tests/unit/tools/analysis/test_lief_tools.py -v
   ```
2. Run the integration tests on real binaries:
   ```bash
   pytest tests/integration/test_mcp_real_binary_tools.py -v
   ```
3. Inspect `reversecore_mcp/tools/analysis/lief_tools.py` to confirm the absence of faked hardcoded path handling or bypass patterns.

---

### Evidence

#### Pytest Output Snippet:
```
tests/unit/tools/analysis/test_lief_tools.py::TestExtractSections::test_no_sections PASSED [  3%]
tests/unit/tools/analysis/test_lief_tools.py::TestExtractSections::test_with_sections PASSED [  6%]
...
tests/unit/tools/analysis/test_lief_tools.py::TestRunLiefInProcess::test_run_lief_in_process_unsupported_format PASSED [100%]
============================== 30 passed in 2.72s ==============================
```

#### Integration Test Output Snippet:
```
tests/integration/test_mcp_real_binary_tools.py::test_parse_binary_with_lief_tool PASSED [ 15%]
======================== 6 passed, 13 skipped in 12.70s ========================
```
