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test-driven-development

Guide the Red-Green-Refactor cycle with failing tests before implementation.

Updated Jan 25, 2026
Search Tags:#workflow#testing#tdd#quality#red-green-refactor#software-engineering#test-driven-development
One-click install
npx skills add https://github.com/xfs96192/claude-config --skill test-driven-development-xfs96192
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/xfs96192/claude-config/tree/main/plugins/cache/claude-plugins-official/superpowers/5.0.7/skills/test-driven-development
Command: npx skills add https://github.com/xfs96192/claude-config --skill test-driven-development-xfs96192

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps teams enforce a test-first approach, ensuring code changes are guided by failing tests and minimal implementations.

Core Features & Use Cases

  • Guides the Red-Green-Refactor cycle to reduce regressions and improve design.
  • Provides structured steps for writing tests before implementing code, refactoring safely, and validating changes.
  • Useful for feature development, bug fixes, and refactoring in any codebase to improve quality and maintainability.

Quick Start

Describe the first failing test, then implement minimal code to pass it.

Frequently Asked Questions about test-driven-development

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

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

The test-driven development workflow enforces a test-first discipline by guiding you to write failing tests before implementation, ensuring code changes are driven by tests to catch regressions early and improve design.

How do I start applying the Red-Green-Refactor cycle to feature development?▼

To start the Red-Green-Refactor cycle, describe the first failing test, then implement minimal code to pass it, and finally refactor safely with structured guidance and explicit test verification steps.

Can I use test-first discipline for bug fixes and refactoring existing codebases?▼

Yes, test-first discipline is applicable to bug fixes and refactoring across any codebase, providing structured steps to write tests before implementing code changes and validating regressions.

What's the best way to ensure minimal code passes tests during software engineering?▼

The best way to ensure minimal code passes tests is by following the Red-Green-Refactor cycle, which enforces writing minimal implementations specifically to pass failing tests before refactoring.

Why write failing tests before implementation in the TDD workflow?▼

Writing failing tests before implementation ensures tests drive design and catch regressions early, reinforcing a test-first approach that improves maintainability and reduces codebase regressions.

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

Test-driven development requires writing failing tests before implementation, so it may not suit exploratory coding or rapid prototyping where immediate test verification steps and structured refactoring are impractical.

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