## 2026-06-26T17:26:52Z
You are the worker agent. Your working directory is `/Users/sjkim1127/Reversecore_MCP/.agents/worker_m3_1/`.
Your mission is to improve the test coverage of `reversecore_mcp/tools/analysis/lief_tools.py` to at least 75% (currently 36%).

1. Read the implementation of `reversecore_mcp/tools/analysis/lief_tools.py` and `tests/unit/tools/analysis/test_lief_tools.py`.
2. Add comprehensive unit tests to `tests/unit/tools/analysis/test_lief_tools.py` covering:
   - Mitigations extraction helper `_extract_mitigations(binary)` for both ELF and PE binaries. Mock the LIEF binary structures appropriately (canary check, segment type checking for GNU_RELRO, PE DLL characteristics, LoadConfigDirectory, SafeSEH, etc.).
   - PE imports/exports parsing in `_extract_symbols(binary)` (mocking LIEF PE import/export structures).
   - All formatting paths in `_format_lief_output` for mitigations, sections, imports, and exports.
   - Size threshold validation: file size warnings, too large for analysis (> 10MB), too large for LIEF (> 500MB).
   - concurrent.futures exception flows: TimeoutError, BrokenProcessPool, other General Exceptions during process pool execution.
   - Direct execution of the worker function `_run_lief_in_process`.
3. Run the tests using pytest: `pytest tests/unit/tools/analysis/test_lief_tools.py --cov=reversecore_mcp/tools/analysis/lief_tools.py --cov-report=term-missing`
4. Verify that all tests pass cleanly and coverage of `lief_tools.py` is >= 75%.
5. Write your changes and handoff report to `/Users/sjkim1127/Reversecore_MCP/.agents/worker_m3_1/handoff.md`.

MANDATORY INTEGRITY WARNING:
DO NOT CHEAT. All implementations must be genuine. DO NOT hardcode test results, create dummy/facade implementations, or circumvent the intended task. A Forensic Auditor will independently verify your work. Integrity violations WILL be detected and your work WILL be rejected.
