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test-driven-development

Enforce a tests-first workflow with the Red-Green-Refactor cycle.

1|Updated Jan 14, 2026
Search Tags:#workflow#testing#tdd#red-green-refactor#quality-assurance#software-engineering#test-driven-development
One-click install
npx skills add https://github.com/DecentralizedGeo/stac-manager --skill test-driven-development-decentralizedgeo
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/DecentralizedGeo/stac-manager/tree/main/.github/skills/test-driven-development
Command: npx skills add https://github.com/DecentralizedGeo/stac-manager --skill test-driven-development-decentralizedgeo

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This guidance helps developers ensure code quality by enforcing a tests-first workflow, revealing design flaws and unintended behavior before implementing production code.

Core Features & Use Cases

  • Enforces writing tests before production code to catch edge cases early and guide design decisions.
  • Emphasizes the Red-Green-Refactor cycle, iterative growth, and safer refactoring.
  • Applies to feature development, bug fixes, and behavior changes across software projects to improve reliability.

Quick Start

Run a failing test first, then implement the minimal code necessary to make it pass.

Frequently Asked Questions about test-driven-development

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

FAQPage Schema
What is test-driven development and how does it improve code quality?▼

Test-driven development is a tests-first workflow that reveals design flaws and unintended behavior before production code is written, ensuring correct behavior and higher reliability across software projects.

How do I apply the red-green-refactor cycle when writing tests first?▼

To apply the red-green-refactor cycle, run a failing test first, then implement the minimal production code necessary to make it pass, and finally refactor safely while keeping the test green.

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

Yes, test-driven development applies to bug fixes, behavior changes, and refactoring across software projects, guiding iterative growth and ensuring safer refactoring by verifying correct behavior before implementation.

When should I write production code in a test-driven workflow?▼

In a test-driven workflow, production code should only be written after a failing test is observed, ensuring that every piece of implementation is driven by a specific test requirement.

What's the best way to start with test-driven development if I have no dependencies?▼

The best way to start is to run a failing test first, then implement the minimal code necessary to make it pass, enforcing a tests-first approach without requiring any external dependencies.

Why write tests before production code instead of after?▼

Writing tests before production code catches edge cases early and guides design decisions, revealing design flaws and unintended behavior upfront rather than retrofitting tests to existing implementation.

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