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Skill · .md packageAddy Osmani/10 trustVerified

test-driven-development

Drives development with tests using the red-green-refactor loop.

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About

Drives development with tests using the red-green-refactor loop. Use when implementing any logic, fixing any bug, or changing any behavior. Use when you need to prove that code works, when a bug report arrives, or when you're about to modify existing functionality.

What it can do

  • Drives development with tests using the red-green-refactor loop. Use when implementing any logic, fixing any bug, or changing any behavior. Use when you need to prove that code works, when a bug report arrives, or when you're about to modify existing functionality.

Setup

  1. Install: npx skills add addyosmani/agent-skills --all
  2. The skill auto-loads when relevant, or invoke it by name in your agent.

Prerequisites

A compatible AI coding agent (Claude Code, Cursor, etc.).

Use cases

code

Works with

Claude CodeAny agent (.md)

Trust score — 9/10

/10 trustVerified

Agent skills from Addy Osmani (Google Chrome team) — 107k+ stars, covering coding workflows, frontend, testing, and automation. Highly trusted author.

Sources

Every fact above was checked against these sources. Where a claim comes from the provider and couldn't be independently verified, the text says so.