For my current requirement I want a way to get call meta data in my toolcall. What you suggest for this requirement. For this I am trying 2 things. 1) From tool_call event handler without adding server use tool Name to perform the requires logic/service. Here I will get the call meta data form event_data. 2) Send the data to the assistant as Assistant Override and retrieve the data by adding in function param. Eg for sending a userID while assigning the call I need to book appointment using that userID and toolcall.