Looks like a nice tool, but please de-AI-ify your README text.

    `check` answered the question a pipeline asks, whether anything would change, with a status and a patch, and wrote nothing.

How about a nice straightforward:

    `check` returns 0 if the formatting is good. If not, it prints a patch to stdout and returns 1. It never modifies your files.

I don't mind people using AI to write code, or even text, but I think taking some pride in how the project is presented (and that's primarily through good writing) is critical to engaging potential users.