openclaw - 💡(How to fix) Fix [Bug]: [Bug]: DeepSeek reasoning models (reasoner/v4-pro) still fail on tool call multi-turn with HTTP 400: reasoning_content not passed back [1 comments, 2 participants]

TL;DR

The issue can likely be resolved by ensuring that the reasoning_content is properly passed back in the HTTP request when using DeepSeek reasoning models with multi-turn tool calls.

Guidance

• Verify that the reasoning_content is being sent correctly in the initial request to the DeepSeek API.
• Check the API documentation for DeepSeek to confirm the expected format and requirements for the reasoning_content parameter in multi-turn requests.
• Review the code handling the multi-turn tool calls to ensure it correctly handles and passes back the reasoning_content.
• Test the API call with a tool like Postman or cURL to isolate the issue and confirm the reasoning_content is being sent as expected.

Example

No code example can be provided without more context on the implementation.

Notes

The solution may depend on the specific implementation details of the DeepSeek API integration, which are not provided in the issue.

Recommendation

Apply workaround: Modify the code handling multi-turn tool calls to ensure reasoning_content is properly passed back, as this is likely a configuration or implementation issue rather than a version problem.