dns_lookup

What dns_lookup does on Yaver

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

Parameters from the server's own tool schema.

Why dns_lookup is rated Low

DNS lookup is a standard information retrieval operation that queries the Domain Name System to resolve hostnames to IP addresses. It has no side effects, does not modify data, and does not execute arbitrary code. While DNS lookups can theoretically be chained into reconnaissance for attacks, the tool itself performs only read-only queries. This is a low-severity Read operation typical of network utilities.

From the tool's definition Tool name 'dns_lookup' and description 'DNS lookup for a hostname' indicate a query operation that retrieves DNS records without modifying data or executing code.

Risk signalsAccepts URL/endpoint input (host)

The rule that runs dns_lookup safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Yaver, 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:

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

Questions about dns_lookup