test-driven-development

Enforce the RED-GREEN-REFACTOR cycle by writing tests before code.

Updated Apr 29, 2026

Search Tags:#code quality #tdd #software development #red-green-refactor #test-first

Ready to run

npx skills add https://github.com/fikriaf/agentos --skill test-driven-development-fikriaf

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/fikriaf/agentos/tree/main/src/agentos/skills/software-development/test-driven-development
Command: npx skills add https://github.com/fikriaf/agentos --skill test-driven-development-fikriaf

SYSTEM DOCUMENTATION & REQUIREMENTS

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

What problem does it solve?

This Skill ensures that developers follow the Test-Driven Development (TDD) methodology, which helps in writing high-quality code with fewer bugs and a better understanding of the code's functionality.

Core Features & Use Cases

Test-First Approach: Enforces writing tests before implementing code.
RED-GREEN-REFACTOR Cycle: Encourages writing failing tests (RED), passing tests (GREEN), and refactoring (REFACTOR).
Safety-First Execution: Ensures that code is safe and functional before moving on to the next step.
Use Case: When developing a new feature or fixing a bug, use this Skill to write tests and follow the TDD cycle.

Quick Start

Run the 'test-driven-development' skill to implement a new feature following the TDD cycle.

Frequently Asked Questions about test-driven-development

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

FAQPage Schema

How do I implement features using the test-driven development cycle?▼

Test-driven development enforces writing failing tests (RED), implementing code to pass them (GREEN), and refactoring. This methodology improves code quality and reduces bugs by validating functionality through a strict test-first approach.

What is the RED-GREEN-REFACTOR cycle in software development?▼

The RED-GREEN-REFACTOR cycle in test-driven development involves writing failing tests (RED), implementing code to pass them (GREEN), and refactoring safely. It enforces a test-first approach for high-quality software development.

How do I fix bugs with a test-first approach?▼

To fix bugs with a test-first approach, you write a failing test that captures the bug, implement the fix to make the test pass (GREEN), and refactor. This safety-first execution ensures the bug is resolved and prevents regressions.

Do I need Python to run the test-driven development workflow?▼

Yes, you need Python to execute this test-driven development workflow. The Skill requires a Python environment to enforce the test-first methodology and automate the RED-GREEN-REFACTOR cycle for your software development tasks.

When should I use test-driven development for software development?▼

You should use test-driven development when writing new features or fixing bugs that require high code quality and fewer regressions. It is ideal for software development workflows demanding safety-first execution and strict test validation.

What are the limitations of enforcing a strict RED-GREEN-REFACTOR cycle?▼

Enforcing a strict RED-GREEN-REFACTOR cycle limits ad-hoc coding and requires writing tests before any implementation. This test-first approach may slow down initial feature development but ensures safety and functionality before moving to the next step.