Critical-risk tools in Gmail

Critical severity Gmail MCP Server 4 of 18 tools

4 of the 18 tools in Gmail are classified as critical risk. This page profiles those tools specifically, with recommended policy actions and the attack patterns that target them.

Every operation listed below is an action PolicyLayer recommends controlling at the transport layer. Open any tool to see the full profile, risk score, and YAML policy snippet.

Tools at critical risk

batch_delete Destructive

Delete multiple emails at once (up to 1000). Default moves to Trash.
delete_email Destructive

Delete an email. By default (permanent:false) moves to Trash — recoverable.
delete_label Destructive

Delete a Gmail user label by its ID. System labels (INBOX, SENT, etc.) cannot be deleted.
empty_trash Destructive

PERMANENTLY delete ALL messages in the Trash folder. THIS IS IRREVERSIBLE.

Attacks that target this class

Critical-risk tools in any server share these documented attack patterns. Each links to the full case and the defensive policy.

Critical-risk tools in Gmail

Tools at critical risk

Attacks that target this class

More on Gmail

Enforce policy on every Gmail tool call.