When do the tokens expire? Can I edit the cli-config file to make them last longer?
You only need to run 'ask init' when adding another profile.
Access Tokens last 1 hour. If the current Access Token is expired and the Refresh Token is still valid, it'll automatically request a new Access Token from the LWA server.
Modifying the expiration time will break the validation and you'll have to recreate the profile.