I have setup an Assistant in the OpenAI Console and defined a few functions. Testing it in the playground area correctly chooses the Function and formats the input according to parameters.
I have setup a workflow using the Chat trigger and the OpenAI node set to “Message Assistent”. I have setup tools (n8n Workflow tool) with the same name & description as the Functions. I even tried specifying the input format required in the description. When the tool workflow is called, the input it receives is always “query” with my last chat input as the value. What i need is the structured input as defined in the Function to be supplied.
Is there any way to do this currently? Another question is how to deal with memory or will that be handled on the OpenAI side with the threadId.
Issue was that the input was still being returned as a string value for the query field. Had to use a Code node to convert it to a json object.
Realized something else. If using n8n tools you cannot use functions on the openAI side as the Functions will be replaced by the tool implementation, thus losing your function description. This is not made clear in the UI and i lost my function definitions as a result. Tools does not use the “parameters” information on the function definition which is why you need to use the description to specify your parameter requirements.
My recommendation:
On the tool node, have a way to indicate that you want to use a pre-defined function in the assistent and not create\replace the function with the tool definition.
Respect the function parameters as defined if that is the case and pass it along to the Workflow.