Query reverse DNS (PTR) records and retrieve network intelligence including ASN, location, and geo hints
AI agents call thealeph_query_ptr to retrieve information from The Aleph MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves DNS and network intelligence data without creating, modifying, executing, deleting, or incurring financial obligations. It is a passive information lookup that poses minimal risk even if misused by an agent, as it only exposes already-public DNS and ASN records. The blast radius is limited to information disclosure of non-sensitive network routing data.
From the tool's definition Tool performs 'Query reverse DNS (PTR) records and retrieve network intelligence' — a lookup and retrieval operation with no modification or execution capability. PTR queries are read-only DNS operations that return publicly available network metadata.
Attacks that exploit this kind of access
Query reverse DNS (PTR) records and retrieve network intelligence including ASN, location, and geo hints. It is categorised as a Read tool in the The Aleph MCP MCP Server, which means it retrieves data without modifying state.
Register the The Aleph MCP server in PolicyLayer and add a rule for thealeph_query_ptr: 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 The Aleph MCP. Nothing to install.
thealeph_query_ptr 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 thealeph_query_ptr 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 thealeph_query_ptr. 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.
thealeph_query_ptr is provided by the The Aleph MCP server (nu-aqualab/thealeph-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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