A CLAUDE.md sits in your project folder and tells Claude who you are and how to work with you. Answer these five, copy the file, done. Nothing here is stored or sent anywhere.
The intro you'd give a new helper. What you do, what you sell or run, what a normal week involves. Rough is fine.
One thing. Small is good. You can change it next week.
The accounts and apps in your life. Separate with commas. Claude will work with these instead of suggesting new ones.
Pick any. These go in as standing rules.
Your standing rules. Pick from these or write your own, one per line.
Save this as CLAUDE.md in the folder you open in VS Code. Claude Code reads it automatically at the start of every session. Change it whenever how you work changes.
From My Claude Code Setup on jen8n. Everything happens in your browser.