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test-driven-development

Guide teams through red-green-refactor cycles with failing tests and minimal implementations.

Updated Mar 16, 2026
Search Tags:#tdd#red-green-refactor#code-quality#unit-testing#test-driven-development#software-testing
One-click install
npx skills add https://github.com/dmulcahey/featureforge --skill test-driven-development-dmulcahey
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/dmulcahey/featureforge/tree/main/skills/test-driven-development
Command: npx skills add https://github.com/dmulcahey/featureforge --skill test-driven-development-dmulcahey

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps teams adopt a disciplined Test-Driven Development approach, ensuring tests drive design and reduce defects.

Core Features & Use Cases

  • Red-Green-Refactor cycle: explicitly guides failing tests, minimal code, and refactoring to improve design.
  • Clear guidance for writing tests first: outlines when to write tests and how to structure them.
  • Practical risk mitigation: encourages incremental changes with quick feedback and robust regression protection.
  • Use case examples: applies to feature development, bug fixes, and refactors across various project types.

Quick Start

Run a failing test to begin the Red-Green-Refactor cycle.

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 is a test-first workflow where you write a failing test, implement minimal code to pass it, and then refactor to improve design. This cycle reduces defects and ensures tests drive reliable software development.

How do I start writing unit tests first when adding a new feature?▼

Start writing unit tests first by running a failing test that defines the desired feature behavior. You then write the minimal implementation required to make that test pass before refactoring the code for better design and quality.

Can I apply test-driven development to bug fixes and refactoring existing code?▼

Yes, test-driven development applies to bug fixes and refactors across various project types. You write a failing test that reproduces the bug or validates the refactor, then implement minimal code changes to satisfy the test.

How does a test-first workflow improve software quality and reduce defects?▼

A test-first workflow improves software quality by enforcing incremental changes with quick feedback. This disciplined approach provides robust regression protection and ensures comprehensive test coverage throughout feature development.

What is the best way to structure tests when enforcing strict TDD across a team?▼

The best way to structure tests in strict TDD is to write them before implementation, ensuring they explicitly guide failing tests, minimal code, and iterative refactoring. This discipline ensures tests drive design and reduce defects.

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