I have a python webhook server using FastAPI an on occasionally get a 400. I still get the tool infomation including name and parameters but the voice can't seem to execute my request. Please advise. My Assistant ID: 9f74336b-2abd-43ce-8af4-3a77a81adb47 and callid: 7bb86ff6-53b1-4fee-a7df-8050aeb4a554 Thanks for your time Steven

Ensure you use Pydantic models with correct types and defaults, confirm Content-Type: application/json, and add error handling to debug.