tdd-workflow

Apply the RED-GREEN-REFACTOR cycle and AAA pattern to software development.

Updated Jun 4, 2026
One-click install
npx skills add https://github.com/achmf/KostaHub --skill tdd-workflow-achmf
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: tdd-workflow
Source: https://github.com/achmf/KostaHub/tree/main/.agent/skills/tdd-workflow
Command: npx skills add https://github.com/achmf/KostaHub --skill tdd-workflow-achmf

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill addresses the inconsistency and lack of discipline in software development by providing a structured, repeatable framework for writing high-quality, testable code.

Core Features & Use Cases

  • RED-GREEN-REFACTOR Cycle: Provides a clear, step-by-step methodology to ensure code is always verified by tests.
  • AAA Pattern: Standardizes test structure into Arrange, Act, and Assert phases for better readability and maintenance.
  • Use Case: When building a new feature or fixing a complex bug, use this workflow to ensure you write a failing test first, implement the minimal code required, and safely refactor without breaking existing functionality.

Quick Start

Apply the tdd-workflow principles to guide the development of a new feature by writing a failing test case first.

Frequently Asked Questions about tdd-workflow

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

FAQPage Schema
How do I apply the RED-GREEN-REFACTOR cycle when developing a new feature?

To apply the RED-GREEN-REFACTOR cycle, you first write a failing test, implement the minimal code required to pass it, and then safely refactor. This structured test-driven development workflow ensures code is always verified by tests and improves reliability.

What is the AAA pattern in unit testing and how does it structure tests?

The AAA pattern in unit testing standardizes test structure into Arrange, Act, and Assert phases. This methodology improves test readability and maintenance by clearly separating the setup, execution, and verification steps within your test cases.

How do I safely refactor code without breaking existing functionality?

To safely refactor code without breaking existing functionality, follow the test-driven development workflow by ensuring comprehensive unit tests pass before and after modifications. This disciplined approach catches regressions early during incremental code refinement.

When should I use test-driven development for fixing complex bugs?

You should use test-driven development for fixing complex bugs to ensure you write a failing test first that reproduces the exact issue. This structured methodology provides a repeatable framework for verifying the bug is resolved without introducing regressions.

Does test-driven development require any specific testing frameworks to work?

The test-driven development workflow is a methodology independent of specific testing frameworks. It facilitates the systematic application of development cycles and AAA patterns across any unit testing platform you choose for your software project.

Why does my development workflow lack discipline when writing new code?

Your development workflow lacks discipline when writing new code due to inconsistency in applying testing standards. Using a structured test-driven methodology enforces adherence to TDD laws and best practices, providing a repeatable framework for high-quality code.