[bug] Invalid 'messages[5].tool_calls[0].***.name': empty string

What version of Codex is running?

v0.65.0

What subscription do you have?

api

Which model were you using?

gpt-5.1

What platform is your computer?

linux

What issue are you seeing?

{"error":{"message":"Invalid 'messages[5].tool_calls[0].***.name': empty
string. Expected a string with minimum length 1, but got an empty string
instead.","type":"invalid_request_error","param":"messages[5].tool_calls[0].function.name","code":"empty_string"}}

What steps can reproduce the bug?

Uploaded thread: 019aee9c-a1d6-7652-

What is the expected behavior?

_No response_

Additional information

_No response_