register_domain · Headless Domains MCP Server MCP

WHAT IT DOES

What register_domain does on Headless Domains MCP Server

AI agents use register_domain to create or update resources in Headless Domains MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Headless Domains MCP Server environment.

WHY IT NEEDS A POLICY

Why register_domain needs a policy

Domain registration is a write operation that creates a new resource (a registered domain) and typically involves financial commitment (registration fees). While it has financial implications, the primary action is writing/creating data in a domain registry. Without evidence of automatic payment processing, Financial is not the best fit; Write is more accurate.

From the tool's definition Tool name is 'register_domain' and server description mentions 'domain registration' as a capability. This tool performs domain registration, which creates a new domain record and commits a financial/contractual obligation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

register_domain Rate-limited

register_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": {
    "register_domain": {
      "limits": [
        {
          "counter": "register_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 Headless Domains MCP Server, so you can run agents against it safely.

FAQ

Questions about register_domain

What does the register_domain tool do? +

register_domain. It is categorised as a Write tool in the Headless Domains 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 register_domain? +

Register the Headless Domains MCP Server MCP server in PolicyLayer and add a rule for register_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 Headless Domains MCP Server. Nothing to install.

What risk level is register_domain? +

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

Can I rate-limit register_domain? +

Yes. Add a rate_limit block to the register_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 register_domain completely? +

Set action: deny in the PolicyLayer policy for register_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 register_domain? +

register_domain is provided by the Headless Domains MCP Server MCP server (shadstoneofficial/headlessdomains-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.