Critical-risk tools in Nexus Core
8 of the 134 tools in Nexus Core 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
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cancel_eventDestructiveDelete a calendar event. notify_attendees controls whether cancellation emails are sent.
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deleteDestructiveMove messages to Trash (recoverable 30 days). NOT permanent delete.
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delete_contactDestructiveDELETE a Google contact by resourceName.
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delete_cron_jobDestructivePermanently remove a cron job. APPROVAL-EQUIVALENT — host should gate.
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delete_fileDestructiveDELETE a single file. Refuses directories (no recursive delete). Path must validate.
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delete_taskDestructiveDELETE a task permanently.
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forgetDestructiveDELETE a memory by key. Returns whether it existed.
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remove_from_groupDestructiveRemove a contact from a group.
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.