Input is too short. Please ensure that the provided input meets the required minimum length.

The 400 Bad Request error in the OpenAI API can occur due to several reasons:

Invalid API Keys or Configuration

The error could be due to an incorrect or expired API key, or a mismatch between the API key used in the code and the one listed in the OpenAI Developer Dashboard[1%.

Incorrect Request Format or Parameters

The request might contain invalid syntax or configuration. For example, the error message ‘$.messages.content’ is invalid suggests that there is an issue with the format or content of the request parameters[5%.

Rate Limiting or Throttling

OpenAI imposes rate limits on API requests. If these limits are exceeded, it can trigger a 400 error[1%.

Middleware or HTTP Request Issues

Incorrect configuration of the HTTP request, such as incorrect headers (e.g., the Authorization field) or an incorrect base URL, can lead to a 400 error[1%.

Content or Data Issues

The error can also occur if the content or data sent in the request is not in the correct format or is missing required properties. For example, errors like ‘content’ is required or ‘messages’ is not of type ‘array’ indicate issues with the request data.

Token Limits and Diff Sizes

Large diffs or exceeding token limits can also cause a 400 error, especially if the request does not conform to the specified token limits.

In your case, the specific error message [] is too short - 'tools' suggests that the request is missing or has insufficient data in the 'tools' field, which is likely a required parameter.