dnslookup · IR Toolshed MCP Server MCP: Risk & Policy

WHAT IT DOES

What dnslookup does on IR Toolshed MCP Server

AI agents call dnslookup to retrieve information from IR Toolshed MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

WHY IT NEEDS A POLICY

Why dnslookup needs a policy

DNS lookups retrieve DNS records for a given domain or IP address. This is a non-destructive, side-effect-free information retrieval operation typical of network analysis tools used by security professionals. It carries minimal risk as it queries public DNS data without modification, execution of arbitrary code, or data deletion.

From the tool's definition Tool name 'dnslookup' and server context ('DNS analysis') indicate retrieval of DNS records. No description provided, but DNS lookups are standard read-only network queries that retrieve publicly available DNS information without modifying data or executing…

Attacks that exploit this kind of access

Questions about dnslookup

What does the dnslookup tool do? +

dnslookup. It is categorised as a Read tool in the IR Toolshed MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on dnslookup? +

Register the IR Toolshed MCP Server MCP server in PolicyLayer and add a rule for dnslookup: 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 IR Toolshed MCP Server. Nothing to install.

What risk level is dnslookup? +

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

Can I rate-limit dnslookup? +

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

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

dnslookup is provided by the IR Toolshed MCP Server MCP server (rossja/irtoolshed-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.