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tdd

Guide developers through the red-green-refactor loop and behavioral testing.

15|1|Updated Apr 24, 2026
Search Tags:#TDD#test-driven development#software quality#red-green-refactor#behavioral testing
One-click install
npx skills add https://github.com/spences10/skills --skill tdd-spences10
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: tdd
Source: https://github.com/spences10/skills/tree/main/tdd
Command: npx skills add https://github.com/spences10/skills --skill tdd-spences10

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill addresses the challenge of implementing robust code through Test-Driven Development (TDD), ensuring high-quality, maintainable code with comprehensive test coverage.

Core Features & Use Cases

  • Red-Green-Refactor Loop: Guided process for test writing, implementation, and refactoring.
  • Behavioral Testing: Focus on testing public interfaces, not implementation details.
  • Use Case: When a developer needs to adopt TDD for a new project, this Skill provides the methodology to write tests first, ensuring functionality is correct and easily maintainable.

Quick Start

Implement Test-Driven Development by starting with a single tracer bullet test for a feature you want to add.

Frequently Asked Questions about tdd

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

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

Behavioral testing in test-driven development focuses on testing public interfaces rather than internal implementation details. This approach ensures your tests validate actual user-facing functionality, making your codebase more maintainable and resilient to internal refactoring.

How do I start implementing test-driven development for a new feature?▼

To start implementing test-driven development, write a single tracer bullet test for the feature you want to add. This initial test serves as a foundational failing test, guiding your implementation process through the red-green-refactor methodology.

Does test-driven development work for integration-test-led feature work?▼

Yes, test-driven development supports integration-test-led feature work. By starting with broad integration tests that validate system interactions, you can systematically drive feature implementation while ensuring comprehensive behavioral coverage and robust code quality.

Why should I use test-driven development instead of writing tests after implementation?▼

Test-driven development ensures high-quality, maintainable code by forcing you to define expected behavior before writing the implementation. This methodology prevents over-engineering, guarantees comprehensive test coverage, and makes future refactoring significantly safer and easier.

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