CLAUDE.md

A text file that Claude reads at the start of every session. It’s like an instruction sheet stuck on the fridge for a new colleague.

How it appears in the course

CLAUDE.md is a text file with instructions about the project.
Introduction · Module 02, CLAUDE.md: your project’s memory
CLAUDE.md is an ordinary text file, in Markdown format (plain text with a few marks for headings and lists; hence .md).
What is CLAUDE.md? · Module 02, CLAUDE.md: your project’s memory
/init — Claude looks through the project and writes a first version of CLAUDE.md by itself.
How do you get started quickly? · Module 02, CLAUDE.md: your project’s memory

Where you learn it

In module 02 · CLAUDE.md: your project’s memory, in the Claude Code for Beginners course.

Related terms

Learn Claude Code from zero, in plain English

12 modules with 1–2 minute lessons, which you can also do on your phone. The first two modules are free.