Scored across 22 tools
Each tool targets a fairly distinct resource+action (email read/search/send, calendar, contacts, rules, categories, settings). Minor overlap exists between search-emails and access-shared-mailbox (both list emails, and search-emails also accepts sharedMailbox), and between manage-contact search and search-people, but descriptions clearly demarcate them.
Most names are snake_case verb_noun (search-emails, create-event, manage-rules, apply-category), but several are bare nouns (auth, draft, attachments, export, folders), mixing conventions. Still readable, but not a single predictable pattern.
22 tools is on the heavier side but justified by a genuinely broad domain spanning mail, calendar, contacts, categories, rules, settings and shared mailboxes. Each tool earns its place with clear scope; none appears redundant.
Very thorough lifecycle coverage: search/read/send/draft/update, attachments, export, folders, rules, contacts CRUD, categories, focused inbox, settings, shared mailboxes and rooms. Minor gaps: no direct delete-message tool and no event-accept action (noted as a Graph limitation), but core workflows are covered.