Remove a blocklist by URL.
AI agents call remove_list to permanently remove resources in Mcp Pihole — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Removing a blocklist is a destructive operation that cannot be undone without manually re-adding it. This action permanently deletes the blocklist entry from the Pi-hole system. While the actual blocked domains may not be deleted, the blocklist configuration itself is irreversibly removed.
From the tool's definition Tool name 'remove_list' with description 'Remove a blocklist by URL' indicates irreversible deletion of a blocklist configuration.
Attacks that exploit this kind of access
Remove a blocklist by URL. It is categorised as a Destructive tool in the Mcp Pihole MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Mcp Pihole MCP server in PolicyLayer and add a rule for remove_list: 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 Mcp Pihole. Nothing to install.
remove_list 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 remove_list 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 remove_list. 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.
remove_list is provided by the Mcp Pihole MCP server (obrien-matthew/mcp-pihole). 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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