genotoxic

# Genotoxic Combines mutation testing and necessist (test statement removal) with code graph analysis to triage findings into actionable categories: false positives, missing unit tests, and fuzzing targets. ## When to Use - After mutation testing reveals survived mutants that need triage - Identifying where unit tests would have the highest impact - Finding functions that need fuzz harnesses instead of unit tests - Prioritizing test improvements using data flow context - Filtering out harmless mutants from actionable ones - Finding unnecessary test statements that indicate weak assertions (necessist) ## When NOT to Use - Codebase has no existing test suite (write tests first) - Pure documentation or configuration changes - Single-file scripts with trivial logic ## Prerequisites - **trailmark** installed — if `uv run trailmark` fails, run: ```bash uv pip install trailmark ``` **DO NOT** fall back to "manual verification" or "manual analysis" as a substitute for running trailmark. Install it first. If installation fails, report the error instead of switching to manual analysis. - A **mutation testing framework** for the target language — if the framework command fails (not found, not installed), install it using the instructions in [references/mutation-frameworks.md](references/mutation-frameworks.md). **DO NOT** fall back to "manual mutation analysis" or skip mutation testing. Install the framework first. If installation fails, report the error ins...