randomNumber

THE RISK

Low Risk

Why randomNumber needs a policy

This tool only generates a random number. It does not read persistent data, write or modify state, execute commands, delete anything, or involve financial transactions. It is a pure computation/utility function with no meaningful side effects.

From the tool's definition "Generate a truly random number using Cloudflare"

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

POLICY

How to control randomNumber

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "randomNumber": {
      "limits": [
        {
          "counter": "randomnumber_rate",
          "window": "minute",
          "max": 60,
          "scope": "grant"
        }
      ]
    }
  }
}

randomNumber gets a rate cap, and everything else on the server is denied unless you say otherwise.

Create a free account and register Cloudflare MCP — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

SET A RULE FOR THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Cloudflare MCP tools

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All 7 Cloudflare MCP tools →

Other tools on other servers

Android Forensics ADB MCP Server generate_app_analysis_report Ethereum Tools add Math MCP Server complex_analysis_suite Crypto_MCP aes_encrypt

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Tool risk categories → How PolicyLayer classifies MCP tools by what they can do.
MCP tool → What an MCP tool is and how clients discover and call it.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about randomNumber

What does the randomNumber tool do? +

Generate a truly random number using Cloudflare. It is categorised as a Other tool in the Cloudflare MCP MCP Server, which means it performs auxiliary operations.

How do I enforce a policy on randomNumber? +

Register the Cloudflare MCP server in PolicyLayer and add a rule for randomNumber: 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 Cloudflare MCP. Nothing to install.

What risk level is randomNumber? +

randomNumber is a Other tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit randomNumber? +

Yes. Add a rate_limit block to the randomNumber 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 randomNumber completely? +

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

randomNumber is provided by the Cloudflare MCP server (shashankboosi/cloudflare-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Cloudflare MCP tool call.

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

CHECK YOUR STACK →