tdd

Automate Red-Green-Refactor cycles with predefined coverage targets for code implementation or refactoring tasks.

Updated Aug 27, 2026

Search Tags:#tdd #refactoring #red-green-refactor #quality-assurance #software-engineering #test-coverage #tests-first

Ready to run

npx skills add https://github.com/fancive/claude-skills --skill tdd-fancive

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: tdd
Source: https://github.com/fancive/claude-skills/tree/main/skills/tdd
Command: npx skills add https://github.com/fancive/claude-skills --skill tdd-fancive

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Test-driven development (TDD) enforces a tests-first approach to deliver reliable, maintainable code by guiding teams through defining tests before implementation and ensuring robust coverage.

Core Features & Use Cases

Tests-first workflow: Define tests, then implement code to pass them.
Red-Green-Refactor cycle: Structured approach for safe incremental development.
Coverage targets: Establish measurable test coverage to prevent regressions.
Use Case: When adding a feature or refactoring a module, start with failing tests and implement just enough code to pass, then refactor.

Quick Start

Ask the AI to apply a tests-first workflow: write a failing test, then implement the minimal code to pass.

Frequently Asked Questions about tdd

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

FAQPage Schema

How do I start writing code with a tests-first workflow?▼

A tests-first workflow begins by defining interfaces and writing failing tests, then implementing minimal code to pass them. You ask the AI to apply this process, ensuring robust code through structured Red-Green-Refactor cycles.

What is the Red-Green-Refactor cycle and how does it work for refactoring?▼

The Red-Green-Refactor cycle structures safe incremental development by writing a failing test, implementing minimal code to pass it, then refactoring. This workflow prevents regressions and ensures maintainable code.

How do I maintain measurable test coverage when adding a feature?▼

To maintain measurable test coverage, establish coverage targets during development. Apply a tests-first workflow to write failing tests upfront, implement the feature, and refactor while ensuring coverage prevents regressions.

Does test-driven development work for general software engineering refactoring tasks?▼

Test-driven development suits typical software engineering tasks where features or fixes require upfront tests and clean interfaces. It automates a tests-first workflow to safely refactor modules and maintain robust code.

Why do I need to define interfaces before writing tests for code implementation?▼

Defining interfaces before writing tests satisfies requirements for clean architecture and ensures tests target expected behavior. This tests-first approach guides implementation by establishing measurable targets before coding.