I know agents are out of scope of this RFC but I love that this could easily be extended to make the JS EventSource to work on streaming AI queries.

Due to the need of bodies in requests, everyone uses POST and streaming results often use the text/event-stream protocol for responses. But this is technically a bad fit because no state is actually changing and because EventSource can only use GET for some obstinate reason. So many APIs reimplement the functionality with their own parser