TDD Cycle & Test-Driven Development

소개

This skill implements the 'Iron Law' of Test-Driven Development (TDD) within Claude Code, preventing the creation of production code without a pre-existing failing test. By mandating a disciplined Red-Green-Refactor workflow, it helps developers eliminate technical debt, ensure comprehensive test coverage, and design more maintainable software through minimal implementation and systematic verification. It provides a structured framework for writing tests, verifying failures, and refactoring with confidence, making it an essential tool for high-integrity software engineering.

주요 기능

• Rationalization prevention for maintaining testing discipline
• Strict Red-Green-Refactor workflow enforcement
• Minimalist code implementation guidance (GREEN phase)
• Mandatory verification of failing tests (RED phase)
• Standardized TDD cycle reporting and output format
• 18 GitHub stars

사용 사례

• Safely refactoring legacy systems while maintaining existing behavior
• Fixing bugs by reproducing them with a failing test first
• Building new features with high reliability and zero dead code