Delete a custom chain and all its rules (⚠️ destructive!)
AI agents call mikrotik_delete_custom_chain to permanently remove resources in MikroTik Cursor MCP — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool performs irreversible deletion of firewall chain configurations and their rules. Deleting a custom chain cannot be undone and could disrupt network traffic filtering, security policies, or routing logic depending on what rules were in the chain. In a router context, such destructive actions have significant impact on network operations.
From the tool's definition The description explicitly states it is 'Delete a custom chain and all its rules (⚠️ destructive!)'. The tool name contains 'delete', and the description confirms it irreversibly removes both the chain and all associated rules.
Attacks that exploit this kind of access
Delete a custom chain and all its rules (⚠️ destructive!). It is categorised as a Destructive tool in the MikroTik Cursor MCP MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the MikroTik Cursor MCP server in PolicyLayer and add a rule for mikrotik_delete_custom_chain: 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 MikroTik Cursor MCP. Nothing to install.
mikrotik_delete_custom_chain 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 mikrotik_delete_custom_chain 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 mikrotik_delete_custom_chain. 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.
mikrotik_delete_custom_chain is provided by the MikroTik Cursor MCP server (kevinpez/mikrotik-cursor-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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