Errors with Opus 4.5 through Antigravity that I don't get with Opus 4.5 through Claud Pro #6064

{"type":"error","error":{"type":"invalid_request_error","message":"messages.3.content.0.type: Expected `thinking` or `redacted_thinking`, but found `text`. When `thinking` is enabled, a final `assistant` message must start with a thinking block (preceeding the lastmost set of `tool_use` and `tool_result` blocks). We recommend you include thinking blocks from previous turns. To avoid this requirement, disable `thinking`. Please consult our documentation at https://docs.claude.com/en/docs/build-with-claude/extended-thinking"},"request_id":"req_vrtx_011CWQKuoNZWVxLby78G47pT"}
[Debug Info]
Requested Model: claude-opus-4-5-thinking
Effective Model: claude-opus-4-5-thinking
Project: groovy-spanner-nxhhm
Endpoint: https://daily-cloudcode-pa.sandbox.googleapis.com/v1internal:streamGenerateContent?alt=sse
Status: 400
Request ID: N/A
Tool Debug Missing: 13
Tool Debug Summary: decl=bash,src=functionDeclarations,hasSchema=y | decl=read,src=functionDeclarations,hasSchema=y | decl=glob,src=functionDeclarations,hasSchema=y | decl=grep,src=functionDeclarations,hasSchema=y | decl=list,src=functionDeclarations,hasSchema=y | decl=edit,src=functionDeclarations,hasSchema=y | decl=write,src=functionDeclarations,hasSchema=y | decl=task,src=functionDeclarations,hasSchema=y | decl=webfetch,src=functionDeclarations,hasSchema=y | decl=todowrite,src=functionDeclarations,hasSchema=y | decl=todoread,src=functionDeclarations,hasSchema=n | decl=skill,src=functionDeclarations,hasSchema=y | decl=prune,src=functionDeclarations,hasSchema=y | decl=bd_ready,src=functionDeclarations,hasSchema=y | decl=bd_create,src=functionDeclarations,hasSchema=y | decl=bd_update,src=functionDeclarations,hasSchema=y | decl=bd_close,src=functionDeclarations,hasSchema=y | decl=bd_reopen,src=functionDeclarations,hasSchema=y | decl=bd_show,src=functionDeclarations,hasSchema=y | decl=bd_list,src=functionDeclarations,hasSchema=y
Tool Debug Payload: