test-driven-development

Guide developers through the red-green-refactor TDD cycle with project test runners.

Updated Apr 10, 2026
One-click install
npx skills add https://github.com/VYRE-Studios/Windows-Agentic-Framework --skill test-driven-development-vyre-studios
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/VYRE-Studios/Windows-Agentic-Framework/tree/main/skills/claude-code/test-driven-development
Command: npx skills add https://github.com/VYRE-Studios/Windows-Agentic-Framework --skill test-driven-development-vyre-studios

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps developers avoid regressions and unclear requirements by enforcing a disciplined Test-Driven Development workflow that produces incremental, well-tested behaviors before any production code is changed.

Core Features & Use Cases

  • Red-Green-Refactor Discipline: Prescribes writing a failing test first, implementing the minimal code to pass, and then refactoring while keeping tests green.
  • Test Discovery & Conventions: Guides developers to find the project's test framework, naming conventions, and the correct test runner to execute targeted tests.
  • Use Case: Implement a small feature or bug fix by enumerating behaviors, adding the simplest failing test for the next behavior, making it pass, and iterating until the feature is complete.

Quick Start

Follow the TDD cycle: write a failing test for the smallest behavior, run the test to confirm it fails, write the minimal code to pass, run tests to confirm success, then refactor and repeat.

Frequently Asked Questions about test-driven-development

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

FAQPage Schema
How do I start writing unit tests using test-driven development?

To start test-driven development, write a failing unit test for the smallest behavior, run the test runner to confirm it fails, write minimal production code to pass, then refactor and repeat the cycle.

What is the red-green-refactor cycle in TDD?

The red-green-refactor cycle in TDD is a disciplined workflow where you write a failing test, implement the minimal code to make it pass, and then refactor while keeping the unit tests green.

How do I find and run my project's test runner for TDD?

To run tests for TDD, discover the project's established test framework and naming conventions, then execute targeted tests using the correct test runner to verify your incremental behaviors.

Can I use test-driven development for implementing small bug fixes?

Yes, test-driven development is ideal for small bug fixes and incremental features, guiding you to enumerate behaviors, add the simplest failing test, make it pass, and iterate until complete.

Why does writing tests before production code prevent regressions?

Writing tests before production code prevents regressions by enforcing a disciplined TDD workflow that produces well-tested behaviors, ensuring clear requirements are met before any code is changed.

Does test-driven development work with any unit testing framework?

Yes, test-driven development applies to common unit test frameworks by adapting to your project's specific test conventions and utilizing the existing test runner to execute targeted tests.