AUTOMATED PARTICIPANTS FOR HOSTED CONVERSATIONS

A server system stores a hosted conversation having a special-purpose automated participant and a standard participant. The server system receives a request to modify the conversation from a first participant, determines a set of edits that update the conversation to an updated state in accordance with the request to modify the conversation; and sends, the set of edits to a second participant. When the first participant is a standard participant: the request includes an indication of preliminary edits; the conversation is updated in accordance with the preliminary edits; and the set of edits include concurrency-resolved edits. When the first participant is a special-purpose automated participant: the request includes an operation to be performed on the conversation; the operation is performed on the conversation at the server system; and the set of edits updates the conversation, in accordance with the operation.