Free tool
Give Claude your house rules
Claude reads one file before it touches your project, and if you have not written it, Claude makes up its own rules. This builds you that file. Answer what you can, skip what you do not know, and download it at the end. Everything happens on this page, and nothing you type is sent anywhere.
You do not need to know how to code to use this. The last question tells you where to put the file.
Your file
This updates as you answer. Nothing here leaves your browser.
Where the file goes
Download it, then put it in your project folder. The same folder you point Claude at, not a subfolder. The file has to be named exactly CLAUDE.md, capital letters and all.
If that sounds like a lot, there is an easier way. Copy it instead, then paste the whole thing to Claude and say: save this as CLAUDE.md in the top folder of my project. It will put it in the right place.
Claude reads it fresh at the start of every session, so you only do this once. Then add a line to it every time you catch yourself correcting the same thing twice. That is the whole trick.
Get the next one
I write up what I ship each week. One email, no pitch.