you can get a durable
@eve agent session id from your web app before the user sends their first message by passing prewarm
it unlocks use cases like:
1. setting the chat url (e.g. /s/
) from the start, so a refresh mid-reply reopens the same chat
2. files can upload under that session before the message that uses them goes out
3. a support widget can put the session id on the ticket the moment it opens