register_customer · Restaurant Backend MCP Server MCP

WHAT IT DOES

What register_customer does on Restaurant Backend MCP Server

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

WHY IT NEEDS A POLICY

Why register_customer needs a policy

Registration creates new customer data (reversibly modifiable) in the backend without irreversible deletion, code execution, or financial transactions. This is a Write operation with medium severity due to potential account enumeration abuse, spam account creation, or unauthorized account registration that could affect customer management and order processing workflows.

From the tool's definition Tool name 'register_customer' indicates creation of a new customer account in the restaurant backend system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

register_customer Rate-limited

register_customer 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_customer": {
      "limits": [
        {
          "counter": "register_customer_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 Restaurant Backend MCP Server, so you can run agents against it safely.

FAQ

Questions about register_customer

What does the register_customer tool do? +

register_customer. It is categorised as a Write tool in the Restaurant Backend 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_customer? +

Register the Restaurant Backend MCP Server MCP server in PolicyLayer and add a rule for register_customer: 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 Restaurant Backend MCP Server. Nothing to install.

What risk level is register_customer? +

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

Can I rate-limit register_customer? +

Yes. Add a rate_limit block to the register_customer 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_customer completely? +

Set action: deny in the PolicyLayer policy for register_customer. 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_customer? +

register_customer is provided by the Restaurant Backend MCP Server MCP server (pasanis/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.