I was trying to learn nix with Claude sonnet in cursor, and I ended up finding a really weird parse of syntax using a colon. The issue ended up being that, under certain contexts, the nixlib method I was using would fall back to URL parsing when nothing else around the colon made sense.

But before I found this out, cursor basically made up an elaborate lie about why the program was behaving the way it was. Paragraphs and paragraphs with 15 examples, each of which was incorrect.

I called bullshit, and the AI was like "You're absolutely right. I made it up."