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running-mutation-tests

100 / 100 · Low risk

Fine to try.

By Dicklesworthstone/pi_agent_rust (GitHub) · coding · 1,977 stars · scanned at commit 9804223

Execute mutation testing to evaluate test suite effectiveness. Use when performing specialized testing. Trigger with phrases like "run mutation tests", "test the tests", or "validate test effectiveness".

Works with any agent that supports SKILL.md skills.

What this skill can do

We found nothing in the files we read that matches our rules. That does not prove the skill is safe: see the limits of static scanning.

Install

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

if [ -e ~/.agents/skills/'running-mutation-tests' ] || [ -L ~/.agents/skills/'running-mutation-tests' ]; then echo 'A skill folder named running-mutation-tests already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/Dicklesworthstone/pi_agent_rust' "$d" && git -C "$d" checkout --quiet '98042236aae3a774dad12caf432c76d347806020' -- 'tests/ext_conformance/artifacts/plugins-community/plugins/testing/mutation-test-runner/skills/running-mutation-tests' && mkdir -p ~/.agents/skills && cp -R "$d"/'tests/ext_conformance/artifacts/plugins-community/plugins/testing/mutation-test-runner/skills/running-mutation-tests' ~/.agents/skills/'running-mutation-tests' && 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/'running-mutation-tests' ~/.claude/skills/'running-mutation-tests' (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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