Lesson Guide

Build Custom Skills That Make Claude Code Remember Your Codebase

Every time you start a new Claude Code session, you're rebuilding context from scratch. Custom skills solve that — they're reusable instructions that tell Claude how your project is structured, what conventions you use, and how to handle common tasks without you repeating yourself.

Claude Codedevelopers

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Try this starter prompt

Copy and paste this into ChatGPT or Claude with your details filled in. It's a simplified version — the full prompt chain is in the app.

CLAUDE.md Skill Writer

Help me write a custom skill for Claude Code.

Project type: [e.g. "React SaaS app" / "Python data pipeline" / "Node.js API"]
Repetitive context I always have to explain: [e.g. "our file naming conventions, the fact we use Zod for validation, our error handling pattern"]
Most common task: [THE TASK you use Claude Code for most]

Write a CLAUDE.md skill file that:
1. Documents the project structure (top-level folders and their purpose)
2. Lists the 3 most important conventions Claude should follow
3. Includes a "how to handle X" rule for the most common task
4. Specifies what Claude should always check before making changes

→ Get the full CLAUDE.md template library for 4 project types in AI School

How it works

1
Identify the 3 things you always explain to Claude Code at the start of each session
2
Write a CLAUDE.md file in the root of your project with those conventions
3
Add a "before you change anything" checklist at the top
4
Update CLAUDE.md whenever you establish a new convention