check_adguard

Check AdGuard Home DNS filter health via GET /control/status. Returns running state and version. username/password: optional Basic auth credentials.

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-adguard.md

WHAT IT DOES

What check_adguard does on Mcp Nettools

AI agents call check_adguard 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_adguard is rated Low

This tool queries the status of an AdGuard Home DNS filter service and returns informational data (running state, version) without side effects. It is a read-only diagnostic check with optional authentication. The blast radius is minimal—misuse would only expose operational status information, not enable system compromise or data loss.

From the tool's definition Tool performs a GET request to /control/status endpoint to retrieve running state and version information. No data modification, deletion, or command execution occurs.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs check_adguard 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_adguard, this is the rule to start with:

check_adguard Allowed

check_adguard 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_adguard": {}
  }
}

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_adguard call is checked against it from then on.

FAQ

Questions about check_adguard

What does the check_adguard tool do? +

Check AdGuard Home DNS filter health via GET /control/status. Returns running state and version. username/password: optional Basic auth credentials. 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_adguard? +

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

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

Can I rate-limit check_adguard? +

Yes. Add a rate_limit block to the check_adguard 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_adguard completely? +

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

check_adguard 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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