create_dns_record

THE RISK

Medium Risk

Why create_dns_record needs a policy

This tool creates DNS records, which modifies domain configuration reversibly. While DNS changes can have significant operational impact (redirecting traffic, affecting service availability), they are not irreversible (records can be deleted/modified). This is a Write operation rather than Execute because it doesn't run arbitrary code or commands—it configures infrastructure through a defined API.

From the tool's definition Tool name contains 'create' and description states 'Create a new DNS record for a domain', indicating creation of new data.

Documented attack patterns abuse exactly the kind of access create_dns_record gives an agent:

POLICY

How to control create_dns_record

PolicyLayer is an MCP gateway — it sits between your AI agents and Vultr MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for create_dns_record:

policy.json

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

create_dns_record 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.

Create a free account and register Vultr MCP — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Vultr MCP tools

Destructive delete Delete a block storage volume. Destructive delete_bare_metal_server Delete a bare metal server. Destructive delete_cdn_ssl_certificate Remove SSL certificate from a CDN zone. Destructive delete_cdn_zone Delete a CDN zone. Destructive delete_collection delete_collection Destructive delete_connection_pool Delete a connection pool. Destructive delete_dns_domain Delete a DNS domain and ALL its associated records Destructive delete_dns_record Delete a specific DNS record

All 284 Vultr MCP tools →

Write tools on other servers

M-Team MCP Server download_torrent YouTube MCP Server generate_video_title Android Forensics ADB MCP Server combine_reports 0xarchive web3_signup

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about create_dns_record

What does the create_dns_record tool do? +

Create a new DNS record for a domain. It is categorised as a Write tool in the Vultr MCP 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_record? +

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

What risk level is create_dns_record? +

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

Can I rate-limit create_dns_record? +

Yes. Add a rate_limit block to the create_dns_record 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_record completely? +

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

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

Enforce policy on every Vultr MCP tool call.

Start from Vultr MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →