Secondly, "AI ... can .... safely modify my infrastructure", OP is either being a troll or haven't seem how the whole IT world is upside down because of those very same statements.

That's exactly why you want your infrastructure defined in version controlled files with easy revert when something gets screwed up.

Thirdly, "my entire infrastructure is defined in text files", you clearly never heard of Ansible.

Ansible is a half-assed version of what nix or even Puppet gets you. Having a version controlled record of which shell commands you ran doesn't help that much when you're still running random uncontrolled shell commands and hoping they do what you want them to.