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genotoxic

65 / 100 · Review before installing

Check before installing. Some of what it can do is expected: a coding skill usually runs build and test commands.

By trailofbits/skills (GitHub) · coding · 8,130 stars · scanned at commit e4dd0bb

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.

Works with any agent that supports SKILL.md skills.

What this skill can do

Runs commands on your computer

The author does not mention this. Expected for a coding skill.

Found in 4 places.

Show 1 more

Downloads and installs other software

The author does not mention this.

Found in 15 places.

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Changes files outside its own folder

The author does not mention this.

Found in 4 places.

Show 1 more

Connects to the internet

The author does not mention this.

Found in 2 places.

Safer alternatives

Low-risk skills in the same category (coding) that look related. Check that one does what you need.

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'genotoxic' ] || [ -L ~/.agents/skills/'genotoxic' ]; then echo 'A skill folder named genotoxic already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/trailofbits/skills' "$d" && git -C "$d" checkout --quiet 'e4dd0bb5b15535f7c5a0834187dffba6ac37e4ff' -- 'plugins/trailmark/skills/genotoxic' && mkdir -p ~/.agents/skills && cp -R "$d"/'plugins/trailmark/skills/genotoxic' ~/.agents/skills/'genotoxic' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'genotoxic' ~/.claude/skills/'genotoxic' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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Score history

DateVersionScore
2026-11-08e4dd0bb65
2026-11-07e4dd0bb65