stop_ramp_test · Grafana MCP Server MCP: Risk & Policy

WHAT IT DOES

What stop_ramp_test does on Grafana MCP Server

AI agents invoke stop_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 stop_ramp_test needs a policy

This tool triggers an external operation (terminating a process/session) whose effects depend on which test is targeted. While not destructive (data is not permanently deleted), it executes a command with operational consequences that cannot be trivially undone if the wrong test is stopped. Misuse could interrupt critical performance testing.

From the tool's definition Tool description states it 'Stop[s] a running RAMP test by killing its tmux session on the RAMP server.' The use of 'killing' a tmux session constitutes executing a termination command on an external system (RAMP server).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

stop_ramp_test Rate-limited

stop_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": {
    "stop_ramp_test": {
      "limits": [
        {
          "counter": "stop_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 stop_ramp_test

What does the stop_ramp_test tool do? +

Stop a running RAMP test by killing its tmux session 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 stop_ramp_test? +

Register the Grafana MCP Server MCP server in PolicyLayer and add a rule for stop_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 stop_ramp_test? +

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

Can I rate-limit stop_ramp_test? +

Yes. Add a rate_limit block to the stop_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 stop_ramp_test completely? +

Set action: deny in the PolicyLayer policy for stop_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 stop_ramp_test? +

stop_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.