🧪 Mutation Testing
This skill analyzes branch changes using mutation testing to reveal weak or missing tests and guides strengthening test suites.
npx playbooks add skill citypaul/.dotfiles --skill mutation-testing
About Mutation Testing
Mutation Testing analyzes branch changes using mutation testing to reveal weak or missing tests and guides strengthening test suites, enabling developers to identify and improve test coverage. This skill connects to the testing process, allowing developers to evaluate the effectiveness of their tests. Developers would reach for Mutation Testing when they need to assess and enhance the robustness of their test suites, particularly after making changes to their codebase.
This compact 19-word instruction set is purpose-built for testing & qa work in AI coding agents. Install with a single command.
Use Cases
- Writing unit, integration, and end-to-end tests
- Setting up test coverage and CI pipelines
- Refactoring legacy code with confidence using tests
- Creating test plans and QA checklists
Example Prompts
System Prompt (19 words)
This skill analyzes branch changes using mutation testing to reveal weak or missing tests and guides strengthening test suites.
Frequently Asked Questions
What is Mutation Testing?
Mutation Testing is a free testing & qa skill for AI coding agents. This skill analyzes branch changes using mutation testing to reveal weak or missing tests and guides strengthening test suites.. It provides a specialized system prompt that configures your agent with testing & qa expertise.
How do I use Mutation Testing with Claude Code?
Run npx playbooks add skill citypaul/.dotfiles --skill mutation-testing in your terminal to install Mutation Testing into your Claude Code session. It works immediately after installation.
Which AI coding agents work with Mutation Testing?
Mutation Testing is compatible with Claude Code, Cursor, GitHub Copilot, Windsurf, OpenClaw, Cline, and any AI agent that supports custom system prompts or .cursorrules files.
Is Mutation Testing free to use?
Yes, Mutation Testing is completely free and open source. The full source is available on GitHub at https://github.com/citypaul/.dotfiles/tree/main/claude/.claude/skills/mutation-testing. You only need a subscription to the AI agent you use it with.
