AI agents call net_dns_lookup to retrieve information from LuzzyTool without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs DNS lookups to retrieve IP addresses and DNS records. It retrieves data without modifying, deleting, or executing operations with side effects. DNS queries are read-only network diagnostic operations with no capability to change system state or execute code.
From the tool's definition Tool description indicates DNS query and domain name resolution functionality: '【网络诊断】DNS 查询，解析域名对应的 IP 地址或查询特定记录类型' (Network diagnostics - DNS query, resolve IP addresses corresponding to domain names, or query specific record types).
Attacks that exploit this kind of access
【网络诊断】DNS 查询，解析域名对应的 IP 地址或查询特定记录类型。. It is categorised as a Read tool in the LuzzyTool MCP Server, which means it retrieves data without modifying state.
Register the LuzzyTool MCP server in PolicyLayer and add a rule for net_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 LuzzyTool. Nothing to install.
net_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 net_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 net_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.
net_dns_lookup is provided by the LuzzyTool MCP server (luzzymeow/luzzytool). 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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