← All skills

Running Mutation Tests

100 / 100 · Low risk

Fine to try.

By BbgnsurfTech/claude-skills-collection (GitHub) · coding · 29 stars · scanned at commit 01d3faf

This skill enables Claude to validate test suite quality by performing mutation testing. It is triggered when the user asks to run mutation tests, analyze test effectiveness, or improve test coverage. The skill introduces code mutations, runs tests against the mutated code, and reports on the "survival rate" of the mutations, indicating the effectiveness of the test suite. Use this skill when the user requests to assess the quality of their tests using mutation testing techniques. Specific trig…

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.

Other copies in this repository

BbgnsurfTech/claude-skills-collection has 1 more folder with a skill named Running Mutation Tests. This page shows the lowest-scoring copy.

• plugins/claude-code-plugins-plus/backups/plugin-enhancements/plugin-backups/mutation-test-runner_20251020_004742/skills/skill-adapter 100/100 · Low risk

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=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/BbgnsurfTech/claude-skills-collection' "$d" && git -C "$d" checkout --quiet '01d3fafeca1133f841956b8b90b939fee92d71e7' -- 'plugins/claude-code-plugins-plus/backups/plugin-enhancements/plugin-backups/mutation-test-runner_20251019_152905/skills/skill-adapter' && mkdir -p ~/.agents/skills && cp -R "$d"/'plugins/claude-code-plugins-plus/backups/plugin-enhancements/plugin-backups/mutation-test-runner_20251019_152905/skills/skill-adapter' ~/.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.

Badge for your README

The badge for BbgnsurfTech/claude-skills-collection shows the score of its lowest-scoring skill.

[![SkillTrust](https://zalavijaysinh.github.io/skilltrust/badges/BbgnsurfTech/claude-skills-collection.svg)](https://zalavijaysinh.github.io/skilltrust/repos/BbgnsurfTech/claude-skills-collection/)

Score history