create_dns_record

Create DNS record in Cloudflare zone

SERVERNcp SOURCE@portel/ncp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-portel-dev-ncp/create-dns-record.md

WHAT IT DOES

What create_dns_record does on Ncp

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

RISK

Why create_dns_record is rated Medium

This tool creates (reversibly modifiable) DNS records in a Cloudflare zone. It is a Write operation because DNS records can be updated or deleted later. Severity is high because DNS record manipulation affects domain routing, potentially redirecting traffic, causing service disruption, or enabling phishing attacks if misconfigured by an AI agent.

From the tool's definition Tool name 'create_dns_record' combined with description 'Create DNS record in Cloudflare zone' indicates creation of DNS infrastructure configuration.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_dns_record safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Ncp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For create_dns_record, this is the rule to start with:

create_dns_record Rate-limited

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.

View as policy code

policy.json

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

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Ncp, apply this rule, and every create_dns_record call is checked against it from then on.

FAQ

Questions about create_dns_record

What does the create_dns_record tool do? +

Create DNS record in Cloudflare zone. It is categorised as a Write tool in the Ncp 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 Ncp 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 Ncp. 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 Ncp MCP server (@portel/ncp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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