Authenticate once, on the machine that has the files
The CLI opens a device flow: it prints a short code, you approve it in a browser you are already signed into. The agent never approves its own login — the approve endpoint accepts a session cookie and nothing else, so a token cannot mint another token.
$ pagewell login
open https://pagewell.ai/device and enter
JHQT-2W9D
✓ signed in as mira@example.com