I tried this with Claude code on macOS. I created a new agent user and a wrapper do run Claude has that user, along with some scripts to set permissions and ownership so that I could run simple allow/deny commands. The only problem was that the fancy oauth flow broke. I filed an issue with Anthropic and their ticket bot auto closed it “for lack of interest” or whatever.

I fiddled with transferring the saved token from my keychain to the agent user keychain but it was not straightforward.

If someone knows how to get a subscription to Claude to work on another user via command line I’d love to know about it.