Test-Driven Development

概要

This skill provides a structured framework for Test-Driven Development (TDD) within Claude Code, guiding the AI through systematic Red-Green-Refactor cycles. It ensures that features are defined by tests before implementation, resulting in robust, maintainable code with high test coverage. Optimized for TypeScript/Bun and Rust environments, it assists with everything from writing initial failing tests to quality-focused refactoring and bug reproduction, making it essential for critical business logic, API design, and complex refactoring tasks.

主な機能

• Quality metric targets for line coverage and mutation testing
• Standardized project organization for unit and integration tests
• Guided TDD methodology for reproducing and fixing software bugs
• Tailored test patterns for TypeScript (Bun) and Rust (Cargo)
• Automated Red-Green-Refactor workflow tracking using TodoWrite
• 16 GitHub stars

ユースケース

• Refactoring complex codebases while ensuring behavior preservation
• Developing critical business logic like authentication and payment systems
• Implementing new API endpoints with a test-first design philosophy