test-driven-development

Name: test-driven-development
Availability: InStock
Author: DMT123

Guide users through the Red-Green-Refactor cycle with failing tests before production code.

Updated Mar 2, 2026

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

Ready to run

npx skills add https://github.com/DMT123/claude-skills-collection --skill test-driven-development-dmt123

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/DMT123/claude-skills-collection/tree/main/plugins/superpowers/test-driven-development
Command: npx skills add https://github.com/DMT123/claude-skills-collection --skill test-driven-development-dmt123

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill enforces a rigorous Test-Driven Development (TDD) methodology to ensure code quality, prevent regressions, and build robust software by writing tests before implementation.

Core Features & Use Cases

TDD Enforcement: Mandates writing failing tests before any production code.
Red-Green-Refactor Cycle: Guides users through the core TDD loop.
Use Case: When developing a new feature, use this Skill to write a test that defines the expected behavior, then write the minimal code to make that test pass, ensuring the feature works as intended from the start.

Quick Start

Use the test-driven-development skill to write a failing test for a new function.

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 tests before code to improve software quality?▼

To start writing tests before code, define the expected behavior of a new function with a failing test, then write the minimal code required to make it pass. This ensures robust software by preventing regressions and clarifying desired behavior from the start.

What is the Red-Green-Refactor cycle in agile development?▼

The Red-Green-Refactor cycle is a test-driven development process where you first write a failing test, implement the minimal code to make it pass, and then refactor the code. It enforces rigorous testing and prevents future regressions.

How do I prevent code regressions when adding new features?▼

To prevent code regressions when adding new features, enforce test-driven development by writing a failing test that defines the expected behavior before writing any production code. This verifies the feature works as intended immediately.

Does test-driven development work for existing code refactoring?▼

Test-driven development supports existing code refactoring by ensuring all changes are preceded by a failing test. You write tests to verify desired behavior, then refactor the code to pass these tests, maintaining robust and verifiable software.

When should I not use test-driven development for software development?▼

You should avoid test-driven development when exploring experimental prototypes where behavior is undefined, as the methodology requires writing a failing test to clarify expected behavior before writing any production code.