nmap_run_nse_script

Run a custom NSE script against a target.

SERVERHercules MCP SOURCE0xmihirk/hercules-mcp

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/0xmihirk-hercules-mcp/nmap-run-nse-script.md

WHAT IT DOES

What nmap_run_nse_script does on Hercules MCP

AI agents invoke nmap_run_nse_script to trigger actions in Hercules MCP. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

RISK

Why nmap_run_nse_script is rated High

This tool executes external code (NSE scripts) against network targets. While the immediate action is reconnaissance-focused (typical of penetration testing), NSE scripts can perform arbitrary operations—from passive fingerprinting to active exploitation—making this an Execute category risk.

From the tool's definition Tool is called 'nmap_run_nse_script' and description states 'Run a custom NSE script against a target.' NSE scripts are Nmap Scripting Engine scripts that execute arbitrary code during reconnaissance.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs nmap_run_nse_script safely

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

nmap_run_nse_script Rate-limited

nmap_run_nse_script stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "nmap_run_nse_script": {
      "limits": [
        {
          "counter": "nmap_run_nse_script_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about nmap_run_nse_script

What does the nmap_run_nse_script tool do? +

Run a custom NSE script against a target. It is categorised as a Execute tool in the Hercules MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on nmap_run_nse_script? +

Register the Hercules MCP server in PolicyLayer and add a rule for nmap_run_nse_script: 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 Hercules MCP. Nothing to install.

What risk level is nmap_run_nse_script? +

nmap_run_nse_script is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit nmap_run_nse_script? +

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

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

nmap_run_nse_script is provided by the Hercules MCP server (0xmihirk/hercules-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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