send_get_routing_diagram

THE RISK

Low Risk

Why send_get_routing_diagram needs a policy

The tool retrieves and displays routing information from the REAPER project. It is a read-only query with no side effects, simply returning a diagram of the current signal routing configuration.

From the tool's definition Get full project routing diagram (sends, receives, outputs)

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

POLICY

How to control send_get_routing_diagram

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

policy.json

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

send_get_routing_diagram 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 ReaperMCP — 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 send_get_routing_diagram

What does the send_get_routing_diagram tool do? +

Get full project routing diagram (sends, receives, outputs). It is categorised as a Read tool in the ReaperMCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on send_get_routing_diagram? +

Register the Reaper MCP server in PolicyLayer and add a rule for send_get_routing_diagram: 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 ReaperMCP. Nothing to install.

What risk level is send_get_routing_diagram? +

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

Can I rate-limit send_get_routing_diagram? +

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

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

send_get_routing_diagram is provided by the Reaper MCP server (xdarkzx/reaper-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every ReaperMCP tool call.

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

CHECK YOUR STACK →