Turns a Frappe site into a remote MCP server that AI clients such as Claude can sign in to with OAuth and use curated, task-level tools registered by installed apps. Every call runs as the signed-in user with that user's permissions, with schema-checked arguments and rollback on failure.

Enables triaging incoming messages by classifying them into a small bounded set of action categories with a fast model, then routing each one to dismiss noise, send notifications for action items, or optionally auto-register calendar events. Users bring their own source, notifier, and calendar through small adapter interfaces, with verdicts and state kept in local SQLite storage.

Enables Claude to work with a corporate mailbox over IMAP/SMTP — listing, searching, reading, sending, forwarding, replying, handling attachments, and moving messages between folders — alongside calendar browsing and event creation/editing over CalDAV. Authentication needs only a single external app password, with no developer-console registration or admin approval.