tdd

Guide the Red-Green-Refactor cycle for Test-Driven Development.

3|Updated Mar 4, 2026
One-click install
npx skills add https://github.com/scute-sh/scute --skill tdd-scute-sh
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: tdd
Source: https://github.com/scute-sh/scute/tree/main/.claude/skills/tdd
Command: npx skills add https://github.com/scute-sh/scute --skill tdd-scute-sh

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill enforces a rigorous Test-Driven Development (TDD) process to ensure code correctness, maintainability, and robust design by prioritizing test creation before implementation.

Core Features & Use Cases

  • Structured Development Cycle: Guides users through the Red-Green-Refactor cycle for every code change.
  • Emergent Design: Ensures that code structure and APIs are driven solely by test requirements, preventing over-engineering.
  • Use Case: When adding a new feature to an application, use this Skill to write tests that define the expected behavior first, then implement the minimal code necessary to make those tests pass.

Quick Start

Use the tdd skill to begin writing new code by first defining a failing test.

Frequently Asked Questions about tdd

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 methodology enforcing a Red-Green-Refactor cycle where you write a failing test first, implement minimal code to pass it, then refactor to ensure correctness and emergent design.

How do I start writing code by defining test requirements first?

To write code by defining test requirements first, define a failing test that specifies expected behavior, implement the minimal code necessary to pass that test, then refactor to improve structure.

When should I use test-driven development to prevent over-engineering?

Use test-driven development when adding new features to ensure code structure and APIs are driven solely by test requirements, preventing over-engineering and ensuring maintainability through emergent design.

Does test-driven development require strict rules for test planning and implementation?

Yes, test-driven development requires adherence to strict rules for test planning, implementation, and refactoring to enforce the Red-Green-Refactor cycle and prioritize test creation before implementation.

What's the best way to ensure code correctness and robust design during software development?

The best way to ensure code correctness and robust design is enforcing a rigorous test-driven development process, prioritizing test creation before implementation to guarantee maintainability and emergent design.

Can I use test-driven development for adding a new feature to an existing application?

Yes, when adding a new feature to an application, use test-driven development to write tests defining expected behavior first, then implement minimal code necessary to make those tests pass.