add_dns_record

THE RISK

Medium Risk

Why add_dns_record needs a policy

Adding DNS records is a reversible write operation that modifies DNS zone data. While not immediately destructive, DNS record changes can redirect traffic, enable email spoofing (via MX/TXT), or compromise domain functionality.

From the tool's definition Tool description states 'Add a DNS zone record' with support for multiple record types (A, AAAA, CNAME, MX, TXT, SRV, CAA). This creates new DNS records that modify DNS zone configuration.

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

POLICY

How to control add_dns_record

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

policy.json

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

add_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 cPanel 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 →

Free to start. No card required.

EXPLORE

Related tools and policies

More cPanel MCP Server tools

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All 164 cPanel MCP Server tools →

Write tools on other servers

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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 add_dns_record

What does the add_dns_record tool do? +

Add a DNS zone record (A, AAAA, CNAME, MX, TXT, SRV, CAA). It is categorised as a Write tool in the cPanel 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 add_dns_record? +

Register the cPanel MCP Server MCP server in PolicyLayer and add a rule for add_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 cPanel MCP Server. Nothing to install.

What risk level is add_dns_record? +

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

Can I rate-limit add_dns_record? +

Yes. Add a rate_limit block to the add_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 add_dns_record completely? +

Set action: deny in the PolicyLayer policy for add_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 add_dns_record? +

add_dns_record is provided by the cPanel MCP Server MCP server (0xhayd3n/cpanel-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 cPanel MCP Server tool call.

Start from cPanel 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 →