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test-driven-development

Guide developers through a red-green-refactor test-driven development cycle.

174|23|Updated Apr 3, 2026
Search Tags:#workflow#tdd#red-green-refactor#quality-assurance#software-engineering#test-driven-development
One-click install
npx skills add https://github.com/RedWoodOG/Hermes-Desktop --skill test-driven-development-redwoodog
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/RedWoodOG/Hermes-Desktop/tree/main/skills/claude-code/test-driven-development
Command: npx skills add https://github.com/RedWoodOG/Hermes-Desktop --skill test-driven-development-redwoodog

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Enforces a disciplined test-first approach to software development by ensuring failing tests are written before production code, driving incremental validation and reduced defects.

Core Features & Use Cases

  • Red-Green-Refactor cycle that compels writing tests first, then implementing minimal code to pass them, and finally refactoring safely.
  • Cross-language guidance for test discovery, setup, and incremental feature validation.
  • Onboarding and team alignment use case: new team members quickly learn a consistent development workflow.

Quick Start

Start by writing a failing test for the next small behavior, then implement the minimal production code to pass the test, and finally refactor.

Frequently Asked Questions about test-driven-development

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

FAQPage Schema
What is the red-green-refactor cycle in test-driven development?▼

The red-green-refactor cycle in test-driven development requires writing a failing test first, implementing minimal code to pass it, and then refactoring while keeping tests green.

How do I start writing tests before production code?▼

To start writing tests before production code, write a failing test for the next small behavior, implement the minimal code to pass it, and finally refactor safely.

Can I apply test-driven development across different programming languages?▼

Yes, test-driven development applies to incremental feature development across programming languages and testing frameworks, providing cross-language guidance for test discovery and setup.

Why write failing tests before implementation?▼

Writing failing tests before implementation enforces a disciplined test-first approach that drives incremental validation, reduces software defects, and ensures reliable feature delivery.

Does test-driven development work for team onboarding and workflow alignment?▼

Yes, test-driven development supports team onboarding and alignment by helping new members quickly learn a consistent development workflow based on incremental feature validation.

When should I not use a strict test-first approach?▼

A strict test-first approach is designed for incremental feature development and may not suit exploratory prototyping where validating small behaviors through failing tests is impractical.

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