test-driven-development

Implement Test-Driven Development using the RED-GREEN-REFACTOR cycle.

4|Updated Apr 19, 2026

Search Tags:#code quality #tdd #software development #red-green-refactor #test-first

Ready to run

npx skills add https://github.com/ragnarokhaa/hermes --skill test-driven-development-ragnarokhaa

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/ragnarokhaa/hermes/tree/main/hermes-cerul-tech-news-package/hermes-cerul-tech-news-package/hermes-agent/skills/software-development/test-driven-development
Command: npx skills add https://github.com/ragnarokhaa/hermes --skill test-driven-development-ragnarokhaa

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve?

This Skill helps software developers implement Test-Driven Development (TDD) practices, ensuring code quality and maintainability through a structured development process.

Core Features & Use Cases

Test-First Approach: Enforces writing tests before writing code to ensure functionality and catch bugs early.
RED-GREEN-REFACTOR Cycle: Guides developers through writing failing tests, making them pass, and refactoring code for efficiency.
Automated Testing: Integrates with existing testing frameworks to streamline the testing process.
Use Case: A developer wants to implement a new feature in their application. They use this Skill to write tests first, ensuring the feature meets the required specifications.

Quick Start

Run the test-driven-development skill and follow the RED-GREEN-REFACTOR cycle for your next development task.

Frequently Asked Questions about test-driven-development

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

FAQPage Schema

What is test-driven development and how does the RED-GREEN-REFACTOR cycle work?▼

Test-driven development is a testing-first approach where you write failing tests (RED), make them pass (GREEN), and then refactor code for efficiency. This cycle ensures functionality is defined upfront and bugs are caught early during software development.

How do I start writing tests before code for a new application feature?▼

To write tests before code, run the test-driven-development skill and follow its structured RED-GREEN-REFACTOR cycle. This enforces defining required specifications through tests first, ensuring the feature meets functionality requirements before implementation.

Do I need to know specific testing frameworks to use test-driven development?▼

Yes, test-driven development requires familiarity with testing frameworks to automate and streamline the testing process. Integrating with your existing frameworks ensures the structured test-first approach effectively validates code quality and maintainability.

When should I use a test-first approach in my software development workflow?▼

Use a test-first approach when you need to ensure high-quality, maintainable code and catch bugs early. The test-driven development process is ideal for implementing new features where you must guarantee functionality meets required specifications before writing the actual code.

Does test-driven development integrate with my existing automated testing setup?▼

Test-driven development integrates with existing testing frameworks to streamline the automated testing process. This allows you to enforce the test-first approach within your current software development workflow without disrupting your established environment.