Skill Claude CodeCodex
Mutation testing patterns for JavaScript and TypeScript using Stryker. Use when analyzing JavaScript/TypeScript branch code to find weak or missing tests, verifying test effectiveness in JS/TS projects, or strengthening test suites for Node.js applications.
Skill Claude CodeCodex
Mutation testing patterns for Python using mutmut. Use when analyzing Python code to find weak or missing tests, verifying pytest effectiveness, strengthening Python test suites, or validating TDD workflows in Python projects.
Skill Claude CodeCodex
Analyze and improve test code quality using Kent Beck's Test Desiderata framework. Use when analyzing test files, reviewing test code, identifying test quality issues, suggesting test improvements, or when asked to evaluate tests against best practices. Applies to unit tests, integration tests, and any automated test…