tdd

Automate test-driven development with red-green-refactor workflows across unit, integration, and end-to-end tests.

Updated Feb 19, 2026
One-click install
npx skills add https://github.com/walker-hzx/AI-Assistant --skill tdd-walker-hzx
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: tdd
Source: https://github.com/walker-hzx/AI-Assistant/tree/main/skills/tdd
Command: npx skills add https://github.com/walker-hzx/AI-Assistant --skill tdd-walker-hzx

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Test-driven development enforces writing tests before code to ensure correct behavior and maintainable design.

Core Features & Use Cases

  • Red-Green-Refactor workflow guiding development from failing tests to passing implementations.
  • Ensures high test coverage and incremental design for reliable software.
  • Use Case: When starting a new feature, write a failing test first and then implement just enough code to pass.

Quick Start

Write a failing test for the new feature, then implement only enough code to make the test pass.

Frequently Asked Questions about tdd

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

FAQPage Schema
How do I start test-driven development for a new feature?

Test-driven development enforces writing tests before code to ensure correct behavior. You start by writing a failing test for the new feature, then implement just enough code to make the test pass, ensuring high coverage and incremental design.

What is the red-green-refactor workflow in unit testing?

The red-green-refactor workflow guides development from failing red tests to passing green implementations, followed by refactoring. It coordinates tests, implementations, and validations to enforce test-first requirements and continuous refactoring.

Does test-driven development work for integration and end-to-end workflows?

Yes, test-driven development can be applied across unit, integration, and end-to-end workflows. It guides developers incrementally from red tests to green implementations and refactors, ensuring high test coverage throughout all testing layers.

How does test-first development improve code quality?

Test-first development improves code quality by ensuring high test coverage and enforcing incremental design. By writing tests before implementation, it validates correct behavior early and drives continuous refactoring for reliable software.

When should I not use a test-first workflow for development?

A test-first workflow may not suit exploratory prototyping where requirements are highly volatile. Because it enforces writing tests before implementation and requires continuous refactoring, it demands clear behavioral expectations to effectively guide incremental design.