test-driven-development

Enforce a RED-GREEN-REFACTOR cycle by writing tests before implementation in Python.

Updated May 8, 2026

Search Tags:#testing #tdd #development #quality assurance #red-green-refactor

Ready to run

npx skills add https://github.com/gztcode/my-skills --skill test-driven-development-gztcode

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/gztcode/my-skills/tree/main/test-driven-development
Command: npx skills add https://github.com/gztcode/my-skills --skill test-driven-development-gztcode

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill helps developers implement features or bug fixes by enforcing a test-first approach, which improves code quality and reduces the likelihood of bugs.

Core Features & Use Cases

Test-First Approach: Encourages writing tests before writing implementation code.
RED-GREEN-REFACTOR Cycle: Guides through writing a failing test (RED), making it pass with minimal code (GREEN), and refactoring (REFACTOR).
Use Case: When starting a new feature or bug fix, use this Skill to ensure you follow the TDD process.

Quick Start

Use the test-driven-development skill to implement a new feature by writing a test first.

Frequently Asked Questions about test-driven-development

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

FAQPage Schema

How do I implement the RED-GREEN-REFACTOR cycle for test-driven development?▼

The RED-GREEN-REFACTOR cycle in test-driven development enforces writing a failing test first (RED), passing it with minimal code (GREEN), and refactoring. This test-first approach improves code quality and reduces bugs by focusing on behavior over implementation details.

What is test-first development and when should I use it?▼

Test-first development requires writing tests before implementation code. You should use this approach when starting a new feature or bug fix to ensure you follow a structured TDD process that improves overall code quality and reduces the likelihood of bugs.

Do I need Python to execute test-driven development workflows?▼

Yes, you need Python to execute this test-driven development workflow. The Skill requires a Python environment to enforce the test-first approach and guide the RED-GREEN-REFACTOR cycle for your software engineering tasks.

How do I write tests before implementation code for a new feature?▼

To write tests before implementation code, focus on defining the expected behavior rather than implementation details. This test-first approach ensures you build minimal code to pass the failing test, which guides you safely through the RED-GREEN-REFACTOR cycle.

Does test-driven development focus on behavior or implementation details?▼

Test-driven development focuses on behavior rather than implementation details. By enforcing a test-first approach and the RED-GREEN-REFACTOR cycle, it ensures your code quality remains high and reduces bugs without coupling tests to internal code structure.