Who decides which agent gets executed next?

[Yanni8]

I know that there is the possibility of choosing between different ways to choose the next agent:

https://microsoft.github.io/autogen/docs/reference/agentchat/groupchat#groupchat-objects

What I don't understand is, how auto works. What Agent (LLM) decides who's next, and based on what information?

[ekzhu]

The group chat manager uses this method to decide when set to auto: https://github.com/microsoft/autogen/blob/main/autogen/agentchat/groupchat.py#L92

[Yanni8]

Thanks exactly what I searched for :)