Remove backlinks when a file is deleted.
AI agents call handle_file_delete to permanently remove resources in Notemd MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool removes backlinks in response to file deletion, which is an irreversible modification of the knowledge graph. Deleting backlinks across potentially many Markdown files cannot be easily undone, making this a destructive operation. The blast radius is high because misuse could corrupt the integrity of an entire knowledge base by removing valid cross-references.
From the tool's definition 'handle_file_delete' and 'Remove backlinks when a file is deleted'
Attacks that exploit this kind of access
Remove backlinks when a file is deleted. It is categorised as a Destructive tool in the Notemd MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Notemd MCP Server MCP server in PolicyLayer and add a rule for handle_file_delete: 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 Notemd MCP Server. Nothing to install.
handle_file_delete 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 handle_file_delete 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 handle_file_delete. 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.
handle_file_delete is provided by the Notemd MCP Server MCP server (jacobinwwey/notemd-mcp). 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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