cf_tunnel_list

THE RISK

Low Risk

Why cf_tunnel_list needs a policy

This tool queries and returns information about existing Cloudflare tunnels without altering state, executing commands, or triggering side effects. It is a read-only list operation with minimal blast radius—an AI agent misusing it could leak tunnel names or metadata but cannot directly modify infrastructure or cause harm.

From the tool's definition Tool name 'cf_tunnel_list' and description 'List cloudflared tunnels in an account' indicate retrieval of tunnel configuration data with no modification, deletion, or execution of external operations.

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

POLICY

How to control cf_tunnel_list

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "cf_tunnel_list": {}
  }
}

cf_tunnel_list is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

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

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about cf_tunnel_list

What does the cf_tunnel_list tool do? +

List cloudflared tunnels in an account. It is categorised as a Read tool in the Odoo Claude MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on cf_tunnel_list? +

Register the Odoo Claude MCP server in PolicyLayer and add a rule for cf_tunnel_list: 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 Odoo Claude MCP. Nothing to install.

What risk level is cf_tunnel_list? +

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

Can I rate-limit cf_tunnel_list? +

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

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

cf_tunnel_list is provided by the Odoo Claude MCP server (rosenvladimirov/odoo-claude-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Odoo Claude MCP tool call.

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

CHECK YOUR STACK →