test-driven-development

Enforce a Red-Green-Refactor workflow with failing tests before implementation.

34|6|Updated Jan 19, 2026
One-click install
npx skills add https://github.com/Chikage0o0/opencode --skill test-driven-development-chikage0o0
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/Chikage0o0/opencode/tree/main/skills/test-driven-development
Command: npx skills add https://github.com/Chikage0o0/opencode --skill test-driven-development-chikage0o0

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Test-driven development reduces defects by requiring automated tests before implementation, ensuring features behave as intended and catching regressions early.

Core Features & Use Cases

  • Red-Green-Refactor workflow that enforces writing a failing test first, then minimal implementation, and refactoring without changing behavior.
  • Applicability to new features, bug fixes, and refactors across typical software projects, improving maintainability and confidence.
  • Encourages documentation of expected behavior through tests, making debugging faster and safer.

Quick Start

Start by writing a failing test, then implement just enough code to pass, and refactor for readability.

Frequently Asked Questions about test-driven-development

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

FAQPage Schema
How does test-first development improve software quality and reduce defects?▼

Test-first development reduces defects by requiring automated tests before implementation, ensuring features behave as intended and catching regressions early across new features, bug fixes, and refactors.

How do I apply the Red-Green-Refactor workflow when writing code?▼

To apply the Red-Green-Refactor workflow, start by writing a failing test for the new behavior. Next, implement just enough minimal code to pass the test. Finally, refactor the code for readability without changing its behavior.

Can I use test-driven development for bug fixes and refactoring existing code?▼

Yes, test-driven development applies to bug fixes and refactors across typical software projects. It enforces writing a failing test to document expected behavior first, making debugging faster and safer while improving maintainability.

What is the best way to start writing tests before implementation?▼

The best way to start writing tests before implementation is to define the expected behavior through a failing test. Then, write just enough code to make it pass, and refactor for readability to ensure reliable software.

Does test-driven development require external testing frameworks or dependencies?▼

No external dependencies are required to adopt test-driven development. The process focuses on enforcing the test-first workflow and yielding minimal, verifiable implementation across typical software projects without specific framework constraints.