test-driven-development

Enforce the Red-Green-Refactor cycle with failing tests before implementation.

Updated May 4, 2026
One-click install
npx skills add https://github.com/InverterNetwork/hermes-agent --skill test-driven-development-inverternetwork
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/InverterNetwork/hermes-agent/tree/main/skills/software-development/test-driven-development
Command: npx skills add https://github.com/InverterNetwork/hermes-agent --skill test-driven-development-inverternetwork

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill eliminates the uncertainty of untested code by enforcing a strict, systematic development cycle that ensures every feature is verified by a failing test before implementation.

Core Features & Use Cases

  • Red-Green-Refactor Enforcement: Guides the agent through the mandatory cycle of writing a failing test, implementing minimal code, and refactoring.
  • Regression Prevention: Ensures that all new code is grounded in testable behavior, preventing the accumulation of technical debt and brittle logic.
  • Use Case: When implementing a complex retry mechanism for a network operation, use this skill to define the failure conditions first, ensuring the final implementation is reliable and fully covered by tests.

Quick Start

Use the test-driven-development skill to guide the implementation of the new user authentication module by writing the failing test first.

Frequently Asked Questions about test-driven-development

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

FAQPage Schema
How does the red-green-refactor cycle work for test-driven development?

The red-green-refactor cycle enforces test-driven development by requiring a failing test first, implementing minimal code to pass it, and then refactoring to ensure high-quality, test-backed software production.

How do I enforce test-first development for new features and bug fixes?

You enforce test-first development by applying this methodology to new feature development, bug fixes, and refactoring tasks, ensuring every code change is grounded in testable behavior before implementation.

Do I need terminal access to execute test suites and verify the development cycle?

Yes, you need terminal access to execute test suites and verify the failure-before-implementation cycle, ensuring the red-green-refactor methodology is strictly followed for reliable code production.

What's the best way to prevent regression when building a network retry mechanism?

The best way to prevent regression is using the red-green-refactor approach to define failure conditions first, ensuring your network retry mechanism is reliable and fully covered by testable behavior.

Why should I write a failing test before implementing minimal code?

Writing a failing test before implementation eliminates the uncertainty of untested code by enforcing a systematic development cycle that prevents the accumulation of technical debt and brittle logic.

When should I not use strict test-driven development for my coding tasks?

Strict test-driven development should be avoided for rapid prototyping or exploratory coding where immediate testable behavior is not critical, as it enforces a rigid failure-before-implementation cycle requiring terminal test execution.