Personal Google Workspace tooling. Not a product, not a service.
This is a private automation tool run by a single individual on their own machine. It connects that person's own Google accounts to their own scripts so that routine work — reading and drafting mail, filing documents, updating spreadsheets and calendars — can be done from a terminal rather than by hand.
Nobody else. The application is authorised for two Google accounts, both belonging to the operator. There is no sign-up, no hosted service, and no other user.
It reads and writes only within those accounts, and only when the operator runs it.
Between the operator's machine and Google's own APIs. Nowhere else — no third-party servers, no analytics, no advertising, no resale. See the privacy policy for the detail.