# Reviewer Task: Milestone 6 (patch_explainer.py coverage) Reviewer 1

## Goal
Examine correctness, completeness, robustness, and interface conformance of the updated patch_explainer code and unit tests.

## Context & Inputs
- Target source file: `reversecore_mcp/tools/common/patch_explainer.py`
- Test file modified: `tests/unit/tools/common/test_patch_explainer.py`
- Worker handoff report: `/Users/sjkim1127/Reversecore_MCP/.agents/worker_m6_1/handoff.md`

## Instructions
1. Review the code fix in `patch_explainer.py` and the new tests in `test_patch_explainer.py` to ensure type checks and deserialization work properly.
2. Verify that all security heuristics and decompiler edge cases are correctly tested.
3. Run the unit tests and check formatting:
   - `pytest tests/unit/tools/common/test_patch_explainer.py -v`
   - `black --check tests/unit/tools/common/test_patch_explainer.py`
   - `ruff check tests/unit/tools/common/test_patch_explainer.py`
4. Confirm overall correctness and write your findings and approval or veto verdict in `handoff.md` inside `.agents/reviewer_m6_1/`.
