pfsense_delete_status_dhcp_server_leases
AI agents call pfsense_delete_status_dhcp_server_leases to permanently remove resources in Pfsense — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
The tool deletes DHCP leases, which is an irreversible operation. Deleting leases disrupts active DHCP allocations and can cause network connectivity issues. While not catastrophic like deleting firewall rules entirely, this action cannot be undone without manual intervention or waiting for lease expiration. The 'delete' verb is a strong indicator of destructive capability.
From the tool's definition Tool name contains 'delete' and operates on DHCP server leases, which are persistent network configuration records that cannot be trivially recovered once removed.
Attacks that exploit this kind of access
pfsense_delete_status_dhcp_server_leases. It is categorised as a Destructive tool in the Pfsense MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Pfsense MCP server in PolicyLayer and add a rule for pfsense_delete_status_dhcp_server_leases: 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 Pfsense. Nothing to install.
pfsense_delete_status_dhcp_server_leases 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 pfsense_delete_status_dhcp_server_leases 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 pfsense_delete_status_dhcp_server_leases. 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.
pfsense_delete_status_dhcp_server_leases is provided by the Pfsense MCP server (abl030/pfsense-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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