list_scan

Perform a list scan on the specified target with optional custom arguments.

SERVERNmapMCP SOURCE0xpratikpatil/nmapmcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/0xpratikpatil-nmapmcp/list-scan.md

WHAT IT DOES

What list_scan does on NmapMCP

AI agents call list_scan to retrieve information from NmapMCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why list_scan is rated Low

An nmap list scan is a reconnaissance-only operation that enumerates and resolves target hosts without actually probing them. It retrieves/queries network information with no direct side effects on target systems.

From the tool's definition 'list scan' and 'Perform a list scan on the specified target' — a list scan (nmap -sL) performs DNS resolution and enumeration of targets without sending packets to the hosts

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_scan safely

PolicyLayer is an MCP gateway: it sits between your AI agents and NmapMCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_scan, this is the rule to start with:

list_scan Allowed

list_scan is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_scan": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect NmapMCP, apply this rule, and every list_scan call is checked against it from then on.

FAQ

Questions about list_scan

What does the list_scan tool do? +

Perform a list scan on the specified target with optional custom arguments. It is categorised as a Read tool in the NmapMCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_scan? +

Register the Nmap MCP server in PolicyLayer and add a rule for list_scan: 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 NmapMCP. Nothing to install.

What risk level is list_scan? +

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

Can I rate-limit list_scan? +

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

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

list_scan is provided by the Nmap MCP server (0xpratikpatil/nmapmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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