check_mimir

Check Grafana Mimir (scalable Prometheus) reachability via GET /ready. Default port 8080. Returns ready status from response body.

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-mimir.md

WHAT IT DOES

What check_mimir does on Mcp Nettools

AI agents call check_mimir 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_mimir is rated Low

This is a diagnostic health-check tool that queries the status of a Grafana Mimir service endpoint. It retrieves information without side effects, making it a Read operation. The severity is low because misuse would only expose availability/status information about an internal service, with minimal blast radius even if an AI agent probes it repeatedly.

From the tool's definition Tool performs a GET request to a /ready endpoint to check reachability and returns status information. No data modification, deletion, or command execution occurs.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs check_mimir 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_mimir, this is the rule to start with:

check_mimir Allowed

check_mimir 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_mimir": {}
  }
}

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_mimir call is checked against it from then on.

FAQ

Questions about check_mimir

What does the check_mimir tool do? +

Check Grafana Mimir (scalable Prometheus) reachability via GET /ready. Default port 8080. Returns ready status from response body. 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_mimir? +

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

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

Can I rate-limit check_mimir? +

Yes. Add a rate_limit block to the check_mimir 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_mimir completely? +

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

check_mimir 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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