tdd

Guide teams through the Red-Green-Refactor loop for test-driven development.

2.6k|696|Updated Mar 12, 2026
One-click install
npx skills add https://github.com/zts212653/clowder-ai --skill tdd-zts212653
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: tdd
Source: https://github.com/zts212653/clowder-ai/tree/main/cat-cafe-skills/tdd
Command: npx skills add https://github.com/zts212653/clowder-ai --skill tdd-zts212653

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

TDD enforces writing tests before code, ensuring every feature starts with a failing test and provides immediate feedback, which helps prevent untested implementations and regressions.

Core Features & Use Cases

  • Red-Green-Refactor loop drives safe, incremental implementations.
  • Tests-first discipline documents expected behavior and guards against regressions.
  • Structured bug-fix workflow promotes writing a failing test before code and using diagnostic steps to isolate issues.

Quick Start

Write a failing test for the desired behavior, then implement the minimal code required to make it pass and refactor while keeping all tests green.

Frequently Asked Questions about tdd

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

FAQPage Schema
What is the test-driven development process for writing reliable code?

The test-driven development process enforces a Red-Green-Refactor loop: you write a failing test first, implement the minimal code to pass it, and then refactor while keeping all tests green.

How do I fix bugs using a test-first workflow?

To fix bugs using a test-first workflow, you write a failing test that reproduces the issue, use diagnostic steps to isolate the root cause, and then implement code changes until the test passes.

When should I use test-first software development over writing tests after implementation?

You should use test-first software development when you need immediate feedback and reliable validation to prevent untested implementations and guard against regressions in new features or existing code.

How do I start writing new features using the Red-Green-Refactor loop?

To start writing new features, write a failing test for the desired behavior, implement the minimal code required to make that test pass, and refactor the implementation while keeping all tests green.

Does test-driven development work for improving existing code reliability?

Yes, test-driven development works for improving existing code by applying disciplined test management and reliable validation, ensuring continuous refactoring remains safe without introducing regressions.