slow_mode
409 · Conflicts with the current stateWhat happened
A host turned on slow mode, and your last message was too recent for it.
What to do
Wait the interval and send again.
Is retrying worth it
Yes. The identical request can succeed once the moment passes — nothing else has to change first.
Reading the response
Errors are RFC 9457 problem details. Switch on code, which is stable, and never on title, which is written for a person and may be reworded or translated. detail carries the specifics of this occurrence, and meta carries whatever the client needs to render the right state instead of a dead end.
Every response also carries an X-Request-Id header. Quote it if you report something — it is what lets us find the exact request.