Critical-risk tools in Nextcloud MCP Server
6 of the 30 tools in Nextcloud MCP Server 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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nextcloud_calendar_delete_eventDestructive 4/5Delete an event from calendar
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nextcloud_contacts_delete_addressbookDestructive 4/5Delete an address book
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nextcloud_contacts_delete_contactDestructive 4/5Delete a contact
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nextcloud_notes_delete_noteDestructive 4/5Delete a note from Nextcloud Notes
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nextcloud_tables_delete_rowDestructive 4/5Delete a row from a table
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nextcloud_webdav_delete_resourceDestructive 5/5Delete a file or directory from Nextcloud
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.
More on Nextcloud MCP Server
Enforce policy on Nextcloud MCP Server
One command generates a policy scaffold for every server in your MCP config.
npx -y @policylayer/intercept init