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test-driven-development

Guide developers through the RED-GREEN-REFACTOR cycle for writing tests before code.

Updated Jun 26, 2026
Search Tags:#TDD#software-quality#code-reliability#test-driven-development#development-practices
One-click install
npx skills add https://github.com/NITISH-gitbit/hermes-custom --skill test-driven-development-nitish-gitbit
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/NITISH-gitbit/hermes-custom/tree/main/skills/software-development/test-driven-development
Command: npx skills add https://github.com/NITISH-gitbit/hermes-custom --skill test-driven-development-nitish-gitbit

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve?

This Skill guides users through the process of Test-Driven Development (TDD), helping them enforce RED-GREEN-REFACTOR principles, write tests before code, and refactor effectively.

Core Features & Use Cases

  • RED-GREEN-REFACTOR Cycle: Step-by-step guidance on writing failing tests, writing minimal code to pass, and refactoring.
  • When to Use TDD: Best practices for applying TDD in various scenarios like new features, bug fixes, refactoring, and behavior changes.
  • Red Flags: Identifies common pitfalls and mistakes in TDD implementation, encouraging users to start over with TDD if necessary.

Quick Start

Run the skill with the command 'hermes run tdd' to begin your TDD journey.

Frequently Asked Questions about test-driven-development

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 (TDD) is a development practice where you write tests before code. The RED-GREEN-REFACTOR cycle involves writing a failing test, creating minimal code to pass it, and then refactoring effectively to improve software quality.

How do I start writing tests before code to improve software reliability?▼

To start writing tests before code, run the TDD skill to receive step-by-step guidance. It enforces the RED-GREEN-REFACTOR principles, helping you systematically write failing tests, implement minimal passing code, and refactor to ensure code reliability.

When should I use Test-Driven Development in my development practices?▼

You should use Test-Driven Development when adding new features, fixing bugs, refactoring, or changing behavior. It provides best practices for these scenarios to help improve code reliability and overall software quality through systematic testing.

Do I need to understand basic programming concepts before applying TDD principles?▼

Yes, applying TDD principles requires an understanding of basic programming concepts and TDD fundamentals. This foundational knowledge is necessary to effectively write tests before code and execute the refactoring process.

What are common red flags and pitfalls when implementing Test-Driven Development?▼

Common red flags in Test-Driven Development implementation include common pitfalls and mistakes during the testing process. Identifying these issues encourages developers to start over with TDD if necessary to maintain proper development practices.

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