Search messages using Gmail's search syntax (e.g. "from:boss is:unread").

Returns compact metadata (id, thread_id, from, subject, date, snippet, labels) — no message bodies. Use gmail_read_message for a full body.

Fetch one message in full, including its plain-text body.

Fast, compact fetch of recent inbox messages for periodic triage.

Intentionally returns metadata + snippet only (no bodies) so it's cheap to call on a schedule. This tool does not decide what's "urgent" — it hands back enough signal (subject, sender, snippet, labels like IMPORTANT/STARRED/UNREAD) for the caller to make that judgment.

Create a draft email. This never sends anything.

Pass thread_id to draft a reply within an existing thread (the draft will pick up proper In-Reply-To/References headers automatically).

Send a previously created draft. This is a real, irreversible send.

There is no tool to send arbitrary text directly — a draft must be created first via gmail_create_draft.

Attach a custom label to a message (creating it first if needed).

Only user-created labels can be applied through this tool — system labels (TRASH, SPAM, INBOX, UNREAD, IMPORTANT, ...) are rejected, so this tool cannot be used to trash, spam, or archive a message. Returns the label id that was applied.