giving these things control over your actual computer is a nightmare waiting to happen – i think its irresponsible to encourage it. there ought to be a good real sandbox sitting between this thing and your data.

Hard agree. I'm on vacation in Mexico atm and when I get back I get to repair my OS because I gave codex full control over my system before I left. Was rushing trying to reorganize my project files to get up to the GitHub before I left. Instead it deleted my OS user profile and bonked my system.