Wait, this is news to me. I thought 3rd party use of the sub was unequivocally prohibited?

If I'm understanding you correctly: they changed that policy, you can now use 3rd party software unofficially with the undocumented Claude Code endpoint, and their servers auto-detect this and charge you extra for it?

EDIT: Yeah, something like that?

> Starting April 4 at 12pm PT / 8pm BST, you’ll no longer be able to use your Claude subscription limits for third-party harnesses including OpenClaw. Instead, they’ll require extra usage.

https://news.ycombinator.com/item?id=47633568

This seems to mean that unauthorized usage of the sub endpoint is tolerated now (and billed as though it were the regular API). And possibly affects claude -p, though I don't know yet.