test_calibrate · CyPerf MCP Server MCP: Risk & Policy

WHAT IT DOES

What test_calibrate does on CyPerf MCP Server

AI agents invoke test_calibrate to trigger actions in CyPerf 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 test_calibrate needs a policy

This tool initiates or halts a calibration process on a network performance/security testing system. It triggers an external operation (calibration run) whose effects depend on the test configuration and timing.

From the tool's definition 'Start or stop test calibration' — triggers an active test operation on network/security testing infrastructure

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

test_calibrate Rate-limited

test_calibrate 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": {
    "test_calibrate": {
      "limits": [
        {
          "counter": "test_calibrate_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 CyPerf MCP Server, so you can run agents against it safely.

FAQ

Questions about test_calibrate

What does the test_calibrate tool do? +

[Test Operations] Start or stop test calibration. It is categorised as a Execute tool in the CyPerf 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 test_calibrate? +

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

What risk level is test_calibrate? +

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

Can I rate-limit test_calibrate? +

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

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

test_calibrate is provided by the CyPerf MCP Server MCP server (keysight/cyperf-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.