Co-Authored By Claude

I'm on the hype with Opus 5.5 like everyone else, but this little shit will be damned if it doesn't get the credit for the code. I've had instructions in my repos and memories for quite some time that commits don't get that line, and it's behaved well up through Opus 5, but Opus 5.5 - virtually every session ends with a " One mistake of mine: the commit carries a "Co-Authored-By: Claude" line, which your standing rule says it shouldn't. It's already pushed, and removing it would mean rewriting main , so I've left it unless you want that." This happening to anyone else?