test-driven-development

Enforce test-driven development with a failing test, minimal code, and refactoring.

Updated Aug 23, 2026

Search Tags:#tdd #debugging #red-green-refactor #code-quality #unit-testing #test-driven-development

Ready to run

npx skills add https://github.com/fernandoxavier02/Superpower-Gemini --skill test-driven-development-fernandoxavier02

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/fernandoxavier02/Superpower-Gemini/tree/main/skills/test-driven-development
Command: npx skills add https://github.com/fernandoxavier02/Superpower-Gemini --skill test-driven-development-fernandoxavier02

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Without tests driving code decisions, production bugs slip in and refactors become risky. This Skill enforces a disciplined test-first workflow to improve reliability and maintainability.

Core Features & Use Cases

Red-Green-Refactor cycle: write a failing test, implement minimal production code to pass, then refactor for clarity.
Guardrails and discipline: explicit steps, checks, and documentation to prevent regression and scope creep.
Use Cases: applies to new features, bug fixes, and behavior changes where tests guide implementation and verification.

Quick Start

Start by writing a failing test for the feature, then implement only enough production code to pass, and finally refactor for clarity.

Frequently Asked Questions about test-driven-development

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

FAQPage Schema

How do I practice test-driven development for new features?▼

Test-driven development enforces a Red-Green-Refactor cycle: write a failing test, implement minimal production code to pass it, then refactor for clarity with validation guardrails to prevent regression.

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

Yes, test-driven development applies to bug fixes and refactoring by ensuring tests guide behavior across changes, enforcing a test-first workflow to improve reliability and maintainability.

What is the Red-Green-Refactor cycle in unit testing?▼

The Red-Green-Refactor cycle in unit testing involves writing a failing test, implementing minimal production code to pass, and refactoring with guardrails and validation to prevent scope creep.

Why does writing tests before production code improve code quality?▼

Writing tests before production code improves code quality because test-driven development enforces a disciplined test-first workflow, ensuring tests guide behavior and preventing production bugs from slipping in.

Do I need any specific frameworks to enforce a test-first workflow?▼

No specific frameworks are required. The test-first workflow relies on explicit steps, checks, and documentation to enforce discipline, rather than depending on external testing frameworks.

When should I not use test-driven development?▼

You should avoid test-driven development when exploring experimental code where behavior is undefined, as the test-first workflow requires explicit behavior expectations to write failing tests initially.