- The native Gemini REST API requires camelCase 'thoughtSignature' as a sibling to functionCall. - Explicitly rename the field to match this requirement, resolving the 'missing thought_signature' 400 error.
- The native Gemini REST API requires camelCase 'thoughtSignature' as a sibling to functionCall. - Explicitly rename the field to match this requirement, resolving the 'missing thought_signature' 400 error.