AI agents call whois_lookup to retrieve information from Idig Dns without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns publicly available WHOIS information about a domain without modifying any data or triggering side effects. It is a straightforward information retrieval tool, characteristic of the Read category. The low severity reflects that WHOIS data is public and non-sensitive.
From the tool's definition whois_lookup retrieves WHOIS data including registrar, creation/expiry dates, domain age, nameservers, EPP status, and DNSSEC status.
Attacks that exploit this kind of access
Parsed WHOIS: registrar, creation/expiry dates, domain age, nameservers, EPP status, DNSSEC status. It is categorised as a Read tool in the Idig Dns MCP Server, which means it retrieves data without modifying state.
Register the Idig Dns MCP server in PolicyLayer and add a rule for whois_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 Idig Dns. Nothing to install.
whois_lookup is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the whois_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.
Set action: deny in the PolicyLayer policy for whois_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.
whois_lookup is provided by the Idig Dns MCP server (https://mcp.softricks.net/sse). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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