Delete a note file inside Notes.
AI agents call delete_note to permanently remove resources in Nextcloud Notes — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool permanently removes data (note files) with no ability to undo the action. Destructive operations rank higher than Write, Execute, or Read categories. Severity is high rather than critical because the blast radius is limited to individual notes within a user's note collection, not system-wide or financial impact.
From the tool's definition Tool name is 'delete_note' and description states 'Delete a note file inside Notes.' The verb 'delete' combined with the action of removing a note file indicates irreversible data deletion.
Attacks that exploit this kind of access
Delete a note file inside Notes. It is categorised as a Destructive tool in the Nextcloud Notes MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Nextcloud Notes MCP server in PolicyLayer and add a rule for delete_note: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Nextcloud Notes. Nothing to install.
delete_note is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the delete_note rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for delete_note. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
delete_note is provided by the Nextcloud Notes MCP server (rncz/nextcloud-notes-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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