batch_dns_lookup
AI agents call batch_dns_lookup to retrieve information from Network MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
DNS lookups retrieve information (IP addresses, domain names) without modifying systems or data. This is a Read operation. Severity is medium rather than low because bulk DNS queries could be used for reconnaissance or to enumerate targets, which has meaningful security implications in a network context, though no direct damage occurs.
From the tool's definition Tool name 'batch_dns_lookup' indicates querying DNS records in bulk. No description provided, but the prefix 'batch_' combined with sibling tools like 'analyze_dns_traffic', 'asn_lookup', and 'cidr_info' confirms this is a diagnostic/query operation.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
batch_dns_lookup. It is categorised as a Read tool in the Network MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Network MCP Server MCP server in PolicyLayer and add a rule for batch_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 Network MCP Server. Nothing to install.
batch_dns_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 batch_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.
Set action: deny in the PolicyLayer policy for batch_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.
batch_dns_lookup is provided by the Network MCP Server MCP server (labeveryday/network-mcp). 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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