Fix BadRequestError

✅ Solution

BadRequestError in langgraph usually arises from malformed requests to an external service, often an LLM, due to incorrect parameters or data. To fix it, carefully inspect the LLM's API call for configuration errors like conflicting parameters (e.g., both `max_tokens` and `max_completion_tokens`), invalid data types, or exceeding rate limits; correct any discrepancies or adjust input data to match the API's expected format. Ensure also that your loop termination condition is correctly defined in the graph.