create_dns_domain · Vultr Dns MCP: Risk & Policy

WHAT IT DOES

What create_dns_domain does on Vultr Dns

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

WHY IT NEEDS A POLICY

Why create_dns_domain needs a policy

This tool creates new DNS domain infrastructure, which is a write operation that modifies the DNS landscape. While not immediately destructive or financial, creating DNS domains can have significant side effects (routing, DNS hijacking potential, infrastructure changes). It is reversible via delete operations but represents a material change to DNS configuration.

From the tool's definition Tool name 'create_dns_domain' and description 'Create a new DNS domain' indicate irreversible creation of a new DNS domain resource with a default A record.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_dns_domain Rate-limited

create_dns_domain 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": {
    "create_dns_domain": {
      "limits": [
        {
          "counter": "create_dns_domain_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 Vultr Dns, so you can run agents against it safely.

FAQ

Questions about create_dns_domain

What does the create_dns_domain tool do? +

Create a new DNS domain with a default A record. It is categorised as a Write tool in the Vultr Dns MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_dns_domain? +

Register the Vultr Dns MCP server in PolicyLayer and add a rule for create_dns_domain: 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 Vultr Dns. Nothing to install.

What risk level is create_dns_domain? +

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

Can I rate-limit create_dns_domain? +

Yes. Add a rate_limit block to the create_dns_domain 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 create_dns_domain completely? +

Set action: deny in the PolicyLayer policy for create_dns_domain. 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 create_dns_domain? +

create_dns_domain is provided by the Vultr Dns MCP server (rsp2k/vultr-dns-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.