start_ramp_test · Grafana MCP Server MCP: Risk & Policy

WHAT IT DOES

What start_ramp_test does on Grafana MCP Server

AI agents invoke start_ramp_test to trigger actions in Grafana MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why start_ramp_test needs a policy

This tool executes a performance test on an external system (RAMP server). This is classified as Execute rather than Write because it triggers an operational action that runs code/processes rather than creating or modifying persistent data. The severity is high because a misconfigured or malicious performance test could consume significant resources, degrade system performance, or cause service disruption.

From the tool's definition Tool description states 'Start a RAMP performance test on the RAMP server', indicating it triggers execution of external operations (performance testing) whose side effects depend on arguments and configuration provided.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

start_ramp_test Rate-limited

start_ramp_test stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "start_ramp_test": {
      "limits": [
        {
          "counter": "start_ramp_test_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Grafana MCP Server, so you can run agents against it safely.

FAQ

Questions about start_ramp_test

What does the start_ramp_test tool do? +

Start a RAMP performance test on the RAMP server. It is categorised as a Execute tool in the Grafana MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on start_ramp_test? +

Register the Grafana MCP Server MCP server in PolicyLayer and add a rule for start_ramp_test: 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 Grafana MCP Server. Nothing to install.

What risk level is start_ramp_test? +

start_ramp_test is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit start_ramp_test? +

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

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

start_ramp_test is provided by the Grafana MCP Server MCP server (quanticsoul4772/grafana-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.