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test-driven-development

Enforce the RED-GREEN-REFACTOR cycle for test-driven development.

20|Updated Jan 7, 2026
Search Tags:#tdd#red-green-refactor#best-practices#unit-testing#quality-assurance#software-engineering#test-driven-development
One-click install
npx skills add https://github.com/bostonaholic/rpikit --skill test-driven-development-bostonaholic
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/bostonaholic/rpikit/tree/main/skills/test-driven-development
Command: npx skills add https://github.com/bostonaholic/rpikit --skill test-driven-development-bostonaholic

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Rigorous TDD methodology enforcing RED-GREEN-REFACTOR discipline. Use during the implement phase to ensure changes are guided by tests; tests must be written before production code with no exceptions.

Core Features & Use Cases

  • Enforces a strict test-first cycle (RED: write a failing test, GREEN: implement just enough to pass, REFACTOR: improve quality while green).
  • Drives implementation by definition, preventing production code without verification, and supporting bug fixes and feature work.
  • Provides guidance for maintaining test discipline across refactoring and feature growth.

Quick Start

Write a failing test for the desired behavior, then implement the minimum code to make it pass, and finally refactor while keeping all tests green.

Frequently Asked Questions about test-driven-development

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

FAQPage Schema
How do I enforce test-first discipline during feature implementation?▼

Test-first discipline is enforced through the RED-GREEN-REFACTOR cycle, requiring you to write a failing test before any production code, implement just enough to pass, then refactor while keeping tests green.

What is the RED-GREEN-REFACTOR cycle for unit testing?▼

The RED-GREEN-REFACTOR cycle is a test-driven development practice where you write a failing test, implement the minimum code to turn it green, and then refactor to improve quality while maintaining green tests.

Can I use test-driven development for both bug fixes and new features?▼

Test-driven development applies to both bug fixes and feature implementation, guiding teams to write failing tests that verify the desired behavior before writing or modifying production code.

How do I start writing failing tests before production code?▼

Start by writing a failing test for the desired behavior, implement the minimum production code to pass that test, and finally refactor the code while ensuring all tests remain green.

Why does test-driven development require tests before production code?▼

Test-driven development requires tests before production code to drive implementation by definition, preventing unverified production code and ensuring all features and bug fixes are guided by tests with no exceptions.

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