The protocol is not being specified. Requirements for such a protocol are being proposed. Though my assumption from reading these requirements would be that the user-agent would be performing an HTTP GET request.

Whether proposing requirements for a protocol without proposing a specification is ragebait or not has more to do with the individual reading the proposal than the proposal itself; I did not find it the least bit enraging.

What requirements are being proposed here? It seems like we’ve got a requirement for a separate endpoint, but no explanation as to why it’s necessary (as opposed to just requesting the endpoint(s) you’re interested in). Then we’ve also got a response format with no proposed request format for a task that as described is impossible to specify.