manage_dns_policy · Unifi MCP: Risk & Policy

WHAT IT DOES

What manage_dns_policy does on Unifi

AI agents use manage_dns_policy to create or update resources in Unifi — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Unifi environment.

WHY IT NEEDS A POLICY

Why manage_dns_policy needs a policy

The tool supports create, update, and delete operations on DNS policies. While delete operations would normally suggest 'Destructive' category, the description emphasizes management capability across the lifecycle. However, given that delete is explicitly mentioned and DNS policies control network-wide access, this is high-severity Write.

From the tool's definition Tool description states it can 'create, update, or delete DNS filtering policies.' The delete capability makes this potentially destructive, but the primary operations are create and update, which are reversible modifications.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

manage_dns_policy Rate-limited

manage_dns_policy stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "manage_dns_policy": {
      "limits": [
        {
          "counter": "manage_dns_policy_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Unifi, so you can run agents against it safely.

FAQ

Questions about manage_dns_policy

What does the manage_dns_policy tool do? +

List, create, update, or delete DNS filtering policies. It is categorised as a Write tool in the Unifi MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on manage_dns_policy? +

Register the Unifi MCP server in PolicyLayer and add a rule for manage_dns_policy: 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 Unifi. Nothing to install.

What risk level is manage_dns_policy? +

manage_dns_policy is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit manage_dns_policy? +

Yes. Add a rate_limit block to the manage_dns_policy 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.

How do I block manage_dns_policy completely? +

Set action: deny in the PolicyLayer policy for manage_dns_policy. 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.

What MCP server provides manage_dns_policy? +

manage_dns_policy is provided by the Unifi MCP server (pproenca/unifi-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.