test-driven-development

Enforce the TDD RED-GREEN-REFACTOR cycle for writing tested code.

1|Updated Mar 15, 2026

Search Tags:#code quality #testing #tdd #development workflow #refactoring #agile

Ready to run

npx skills add https://github.com/Pixel-Process-UG/superkit-agents --skill test-driven-development-pixel-process-ug

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/Pixel-Process-UG/superkit-agents/tree/main/templates/skills/test-driven-development
Command: npx skills add https://github.com/Pixel-Process-UG/superkit-agents --skill test-driven-development-pixel-process-ug

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill enforces the Test-Driven Development (TDD) methodology to ensure code quality, reduce bugs, and create a robust safety net for future changes.

Core Features & Use Cases

RED-GREEN-REFACTOR Cycle: Strictly follows the TDD mantra: write a failing test, make it pass with minimal code, then refactor.
Hard Gates: Implements non-negotiable checkpoints to prevent untested code and ensure quality.
Use Case: When developing a new feature, you'll first write a test that fails because the feature doesn't exist. Then, you'll write just enough code to make that test pass. Finally, you'll clean up the code while ensuring all tests still pass.

Quick Start

Use the test-driven-development skill to implement the new user registration endpoint, starting with a failing test for valid credentials.

Frequently Asked Questions about test-driven-development

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

FAQPage Schema

What is the RED-GREEN-REFACTOR cycle in test-driven development?▼

The RED-GREEN-REFACTOR cycle in test-driven development requires writing a failing test, implementing minimal code to pass it, and then refactoring. This enforces non-negotiable checkpoints to ensure no production code exists without a verified requirement.

How do I implement a new feature using test-driven development?▼

To implement a new feature using test-driven development, you first write a failing test that defines the feature's expected behavior. Next, you write just enough code to make the test pass, and finally, you refactor the implementation while ensuring all tests still pass.

Can I use test-driven development for bug fixing and code refactoring?▼

Yes, test-driven development is applicable to all software development phases including bug fixing and code refactoring. It guides developers to write failing tests that reproduce bugs before implementation, creating a robust safety net for future changes.

Does test-driven development work with agile development workflows?▼

Test-driven development works seamlessly with agile workflows by enforcing strict quality gates and continuous testing. It ensures high-quality code and reduces bugs by requiring verified tests before any production code is written during iterative development cycles.

Why should I write failing tests before writing production code?▼

Writing failing tests before production code ensures that the test actually validates the requirement and prevents untested code from entering the codebase. This hard gate mechanism reduces bugs and creates a robust safety net for future refactoring.