check_zookeeper

Check ZooKeeper server health using the 'ruok' four-letter word command. Also attempts 'stat' to return mode (leader/follower/standalone) and client count. host: IP or hostname. port: default 2181.

SERVERMcp Nettools SOURCEaaronckj/mcp-nettools

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/aaronckj-mcp-nettools/check-zookeeper.md

WHAT IT DOES

What check_zookeeper does on Mcp Nettools

AI agents call check_zookeeper to retrieve information from Mcp Nettools without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why check_zookeeper is rated Low

The 'ruok' and 'stat' four-letter word commands in ZooKeeper are read-only diagnostic queries that return server status and operational mode. They do not create, modify, delete, or execute external code—they simply retrieve the current state of the ZooKeeper service. This is consistent with the broader server's purpose of network diagnostics.

From the tool's definition Tool performs health checks using read-only commands ('ruok' and 'stat') that query ZooKeeper server state without modifying data.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs check_zookeeper safely

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

check_zookeeper Allowed

check_zookeeper is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

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

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about check_zookeeper

What does the check_zookeeper tool do? +

Check ZooKeeper server health using the 'ruok' four-letter word command. Also attempts 'stat' to return mode (leader/follower/standalone) and client count. host: IP or hostname. port: default 2181. It is categorised as a Read tool in the Mcp Nettools MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on check_zookeeper? +

Register the Mcp Nettools MCP server in PolicyLayer and add a rule for check_zookeeper: 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 Nettools. Nothing to install.

What risk level is check_zookeeper? +

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

Can I rate-limit check_zookeeper? +

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

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

check_zookeeper is provided by the Mcp Nettools MCP server (aaronckj/mcp-nettools). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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