test-driven-development

Guide developers through the test-driven development cycle for features and bug fixes.

Updated May 28, 2026
One-click install
npx skills add https://github.com/liujiarui0918/claude-code-codex-strongest --skill test-driven-development-liujiarui0918
Or copy as Structured Prompt for Agent
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Skill: test-driven-development
Source: https://github.com/liujiarui0918/claude-code-codex-strongest/tree/main/skills/test-driven-development
Command: npx skills add https://github.com/liujiarui0918/claude-code-codex-strongest --skill test-driven-development-liujiarui0918

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill assists developers in implementing new functionality or fixing bugs by enforcing the test-driven development (TDD) cycle, ensuring high-quality code with thorough testing.

Core Features & Use Cases

  • Enforce TDD Cycle: Automates the TDD process, ensuring RED → GREEN → REFACTOR is followed for each feature or bug fix.
  • Bug Reproducibility: Facilitates writing tests that accurately reproduce bugs for easier resolution.
  • Code Quality: Promotes writing testable code, resulting in more maintainable and reliable applications.

Quick Start

Implement a new feature following the TDD cycle by writing a failing test, writing code to pass the test, and refactoring to improve the code quality.

Frequently Asked Questions about test-driven-development

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
What is the test-driven development cycle and how does it improve code quality?

Test-driven development enforces the RED, GREEN, REFACTOR cycle to ensure high-quality code by writing failing tests before implementation. This process guarantees thorough testing and promotes maintainable, reliable applications.

How do I implement new features using test-driven development?

Implement features using test-driven development by first writing a failing test for the desired behavior. Next, write the minimum implementation code to pass the test, then refactor to improve code quality.

How do I write tests to reproduce and fix bugs?

Write bug-fixing tests by accurately reproducing the bug as a failing test case. Following test-driven development, you then write code to pass this test, ensuring the specific bug is resolved and prevented.

Does test-driven development work for any programming language?

Test-driven development suits any programming task that requires comprehensive testing to ensure reliability. It is applicable across languages as long as the environment supports writing and executing tests.

What's the best way to structure my development workflow for TDD?

The best development workflow for TDD strictly adheres to the RED, GREEN, REFACTOR cycle for each feature or bug fix. This automates the TDD process, ensuring testable code and maintaining high standards.