Goose does not work with Gemini 3 pro preview - 400 Bad Request - missing thought_signature

[capttrousers]

Describe the bug
Set the model to provider: google model: gemini-3-pro-preview

Tried resuming a session and reviewing a file, and got this error about the function call

Ran into this error: Request failed: Request failed with status: 400 Bad Request. Message: Function call is missing a thought_signature in functionCall parts. This is required for tools to work correctly, and missing thought_signature may lead to degraded model performance. Additional data, function call `default_api:developer__text_editor` , position 43. Please refer to https://ai.google.dev/gemini-api/docs/thought-signatures for more details..

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Please provide the following information

• OS & Arch: Ubuntu 24.04
• Interface: cli
• Version: v1.12.1
• Extensions enabled: just developer
• Provider & Model: google gemini 3 pro preview

[DOsinga]

yeah they changed the protocol underneath us. is fixed in main though: #5806