Claude Code skills are reusable commands that automate repetitive development tasks. Here's everything you need to know. What Are Claude Code Skills? Skills are saved workflows that Claude Code can execute with a single command. Instead of explaining what you want every time, you create a skill once and invoke it whenever you need it. Think of them as macros for AI-assisted development. How Skills Work A skill is a markdown file that defines: What it does — the objective How it does it — step-by-step instructions for Claude What it produces — the expected output When you invoke a skill (e.g., /auth ), Claude reads the skill file and executes the instructions. Example: The Auth Skill --- name : auth description : Set up authentication for the project --- 1. Detect the project framework (Next.js, Express, etc.) 2. Install the appropriate auth library 3. Create auth middleware 4. Add login/signup routes 5. Create protected route wrapper 6.…