ping

Simple ping to trigger a request and log headers

SERVERMcp Test Servers SOURCEmsfeldstein/mcp-test-servers

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/mcp-test-servers/ping.md

WHAT IT DOES

What ping does on Mcp Test Servers

AI agents invoke ping to trigger actions in Mcp Test Servers. 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.

RISK

Why ping is rated High

Although 'ping' is commonly a read operation, this tool's description explicitly states it 'triggers a request' (an action) and 'logs headers' (a side effect). This goes beyond passive data retrieval into the Execute category. However, the blast radius is low because ping operations are typically benign diagnostic actions with minimal impact.

From the tool's definition Tool description states 'Simple ping to trigger a request and log headers' — it triggers a request and performs logging, which are operations with side effects

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs ping safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Mcp Test Servers, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For ping, this is the rule to start with:

ping Rate-limited

ping 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": {
    "ping": {
      "limits": [
        {
          "counter": "ping_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Mcp Test Servers, apply this rule, and every ping call is checked against it from then on.

FAQ

Questions about ping

What does the ping tool do? +

Simple ping to trigger a request and log headers. It is categorised as a Execute tool in the Mcp Test Servers MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on ping? +

Register the Mcp Test Servers MCP server in PolicyLayer and add a rule for ping: 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 Mcp Test Servers. Nothing to install.

What risk level is ping? +

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

Can I rate-limit ping? +

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

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

ping is provided by the Mcp Test Servers MCP server (msfeldstein/mcp-test-servers). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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