genotoxic
Graph-informed mutation testing triage. Parses codebases with Trailmark, runs mutation testing and necessist, then uses survived mutants, unnecessary test statements, and call graph data to identify false positives, missing test coverage, and fuzzing targets. Use when triaging survived mutants, analyzing mutation testing results, identifying test gaps, finding fuzzing targets from weak tests, running mutation frameworks (including circomvent and cairo-mutants), or using necessist.
Install
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Open your terminal
- Mac: Press ⌘ Space, type "Terminal", press Enter
- Windows: Press Win R, type "cmd", press Enter
Paste the command above and press Enter
Use the Copy command button, then paste in your terminal (Mac: ⌘V, Windows: Ctrl V).
Restart Claude Code
Close and reopen Claude Code, or start a new session, so it picks up the new skill.
Where it lives
Related skills
finishing-a-development-branch
Use when implementation is complete, all tests pass, and you need to decide how to integrate the work
requesting-code-review
Use when completing tasks, implementing major features, or before merging to verify work meets requirements
test-driven-development
Use when implementing any feature or bugfix, before writing implementation code
writing-plans
Use when you have a spec or requirements for a multi-step task, before touching code