create_dns_record

THE RISK

Medium Risk

Why create_dns_record needs a policy

Creating DNS records is a reversible write operation that modifies domain infrastructure. While not immediately destructive, it affects domain resolution globally and could redirect traffic if misconfigured, presenting high severity risk if an AI agent misuses it to point domains to malicious servers.

From the tool's definition Tool name is 'create_dns_record' and description states it 'Adds a new DNS record to a specified domain.' This creates new DNS configuration data that modifies domain routing and resolution behavior.

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 Porkbun MCP Server, 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 Porkbun MCP Server — 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 →

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EXPLORE

Related tools and policies

More Porkbun MCP Server tools

Destructive delete_dns_record Removes a specific DNS record using its ID. Destructive delete_dns_record_by_name_type Deletes all DNS records matching a domain, subdomain (optional), and type. Corresponds to Destructive delete_dnssec_record Deletes a DNSSEC record associated with the domain at the registry by Key Tag. Destructive delete_url_forward Deletes a URL forward record for a domain by its ID. Write add_url_forward Adds URL forwarding for a domain or subdomain. Write create_dnssec_record Creates a DNSSEC record at the registry for the domain. Write edit_dns_record Modifies an existing DNS record using its ID. Write edit_dns_record_by_name_type Edits all DNS records matching a domain, subdomain (optional), and type. Corresponds to en

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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? +

Adds a new DNS record to a specified domain. It is categorised as a Write tool in the Porkbun MCP Server 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 Porkbun MCP Server 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 Porkbun MCP Server. 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 Porkbun MCP Server MCP server (miraclebakelaser/porkbun-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Porkbun MCP Server tool call.

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

CHECK YOUR STACK →