dns_lookup

A read tool on the GadgetHumans API Hub MCP server.

SERVERGadgetHumans API Hub SOURCEpypi:gadgethumans-api-hub-mcp

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/io-github-scotia1973-bot-api-hub/dns-lookup.md

WHAT IT DOES

What dns_lookup does on GadgetHumans API Hub

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

RISK

Why dns_lookup is rated Low

DNS lookup is a read-only operation that queries external DNS servers to resolve domain names to IP addresses. While it retrieves data with no side effects on the target system, it has medium severity because DNS lookups can be abused for reconnaissance (mapping network infrastructure, discovering subdomains, or enabling further attacks).

From the tool's definition Tool name 'dns_lookup' performs a DNS query, which retrieves network address information. The description is empty, preventing confirmation of exact capabilities, but the name clearly indicates a read operation that queries DNS records.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs dns_lookup safely

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

dns_lookup Allowed

dns_lookup 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": {
    "dns_lookup": {}
  }
}

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

The button opens the PolicyLayer dashboard: create your workspace, connect GadgetHumans API Hub, apply this rule, and every dns_lookup call is checked against it from then on.

FAQ

Questions about dns_lookup

What does the dns_lookup tool do? +

dns_lookup is a read tool on the GadgetHumans API Hub MCP server. It is categorised as a Read tool in the GadgetHumans API Hub MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on dns_lookup? +

Register the GadgetHumans API Hub MCP server in PolicyLayer and add a rule for dns_lookup: 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 GadgetHumans API Hub. Nothing to install.

What risk level is dns_lookup? +

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

Can I rate-limit dns_lookup? +

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

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

dns_lookup is provided by the GadgetHumans API Hub MCP server (pypi:gadgethumans-api-hub-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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