check_etcd

Check etcd v3 cluster health via its HTTP health endpoint. Returns health status and reason if unhealthy. host: IP or hostname. port: default 2379 (etcd client port).

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-etcd.md

WHAT IT DOES

What check_etcd does on Mcp Nettools

AI agents call check_etcd 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_etcd is rated Low

This tool queries an etcd cluster's health endpoint to retrieve diagnostic information. While it is a read-only operation with no side effects on the etcd data itself, the severity is elevated to medium because: (1) etcd typically manages critical infrastructure state and configuration for Kubernetes and other distributed systems, (2) exposing cluster health information to unauthorized agents could inform…

From the tool's definition Tool performs a health check via HTTP endpoint ("Check etcd v3 cluster health via its HTTP health endpoint") which retrieves status information without modifying data. The description uses read-only language: "Returns health status and reason if unhealthy."

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs check_etcd 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_etcd, this is the rule to start with:

check_etcd Allowed

check_etcd 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_etcd": {}
  }
}

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_etcd call is checked against it from then on.

FAQ

Questions about check_etcd

What does the check_etcd tool do? +

Check etcd v3 cluster health via its HTTP health endpoint. Returns health status and reason if unhealthy. host: IP or hostname. port: default 2379 (etcd client port). 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_etcd? +

Register the Mcp Nettools MCP server in PolicyLayer and add a rule for check_etcd: 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_etcd? +

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

Can I rate-limit check_etcd? +

Yes. Add a rate_limit block to the check_etcd 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_etcd completely? +

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

check_etcd 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.

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