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

## Goal
Empirically stress test correctness and exception pathways of the patch explainer tools.

## Context & Inputs
- Target source file: `reversecore_mcp/tools/common/patch_explainer.py`
- Test file modified: `tests/unit/tools/common/test_patch_explainer.py`

## Instructions
1. Analyze the mock implementations in the tests.
2. Verify that invalid inputs (e.g. empty or invalid function names, corrupt binary diff results, empty changes) are handled gracefully without crashing the server.
3. Write your empirical validation findings and confirmation in `handoff.md` inside your working directory `.agents/challenger_m6_1/`.
