[BUG] 使用claude sonnet4.6的时候说模型响应不完整

[dingjinhong]

Problem (one or two sentences)

使用claude sonnet4.6的时候说模型响应不完整

Context (who is affected and when)

Reproduction steps

windows机器

Expected result

可以正常使用

Actual result

用不了

Variations tried (optional)

No response

App Version

版本v3.51.0

API Provider (optional)

None

Model Used (optional)

No response

Roo Code Task Links (optional)

No response

Relevant logs or errors (optional)

[roomote-v0]

Thanks for reporting this issue. I would like to help investigate, but need some clarification to narrow down the root cause.

The error "模型响应不完整" (Model Response Incomplete) can be triggered by two different conditions:

1. MODEL_NO_TOOLS_USED - The model responded with text but did not call any tools
2. MODEL_NO_ASSISTANT_MESSAGES - The model returned a completely empty response

To help diagnose this, could you please provide:

1. Which API provider are you using? (e.g., Anthropic direct, OpenRouter, AWS Bedrock, Google Vertex, etc.)
2. What is the exact model ID you selected? There is no model called "Claude Sonnet 4.6" - did you mean claude-sonnet-4-20250514, claude-3-5-sonnet-20241022, or another model? The exact model ID from the settings would help.
3. Does this happen on every request, or only sometimes? (The system has a "grace retry" that silently retries once before showing this error, so you would only see it after 2+ consecutive empty responses.)
4. Can you share the relevant error logs? You can find them in the Output panel (View > Output > select "Roo Code" from the dropdown).
5. Is this a new issue, or has this model worked for you before on an earlier version of Roo Code?

Please tag @roomote in your response with these details, and I will be happy to investigate further.