gmail-prepass is a personal-use tool operated by Ryan Leary. It reads Gmail message metadata (sender, subject, date, labels, and snippets) from the operator's own Gmail account to sort and summarize the inbox for personal organization.
It is used by a single user (the operator). It does not sell or share data, and data stays on the operator's own computer. Access can be revoked at any time at https://myaccount.google.com/permissions.