I have been using the builtin macOS `caffeinate` command for this.

For example:

caffeinate -dimsu

That keeps the Mac awake so I can use Claude remotely from phone.

You can also wrap your command as well, but I rarely use it.

caffeinate -dimsu your-agent-command

The new wave apps named after speed / modifinil must be hard core?

Claude Code actually uses caffeinate -i -t 300 during Claude’s turn, restarted automatically until the turn finishes.

Caffeinate is burned into my muscle memory at this point. I attribute that to the realization that you could repeat opt flags. There's something catchy about

caffeinate -dimsum