networkDiscovery · Linux Network Scanner MCP Server MCP

WHAT IT DOES

What networkDiscovery does on Linux Network Scanner MCP Server

AI agents invoke networkDiscovery to trigger actions in Linux Network Scanner MCP Server. 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.

WHY IT NEEDS A POLICY

Why networkDiscovery needs a policy

Network discovery tools actively probe and scan networks, triggering external operations against potentially unauthorized targets. The description is empty, but context from the server and sibling tools (especially exploitScan, ftpBruteForce, directCmd) strongly implies this tool executes active network scanning commands. Misuse could involve scanning unauthorized networks, which carries legal and security risks.

From the tool's definition Tool name 'networkDiscovery' on a server described as enabling 'network security scanning and vulnerability assessment using Linux tools like nmap' with capabilities including 'network discovery, port scanning, service identification, OS detection, and device…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

networkDiscovery Rate-limited

networkDiscovery 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": {
    "networkDiscovery": {
      "limits": [
        {
          "counter": "networkdiscovery_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Linux Network Scanner MCP Server, so you can run agents against it safely.

FAQ

Questions about networkDiscovery

What does the networkDiscovery tool do? +

networkDiscovery. It is categorised as a Execute tool in the Linux Network Scanner MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on networkDiscovery? +

Register the Linux Network Scanner MCP Server MCP server in PolicyLayer and add a rule for networkDiscovery: 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 Linux Network Scanner MCP Server. Nothing to install.

What risk level is networkDiscovery? +

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

Can I rate-limit networkDiscovery? +

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

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

networkDiscovery is provided by the Linux Network Scanner MCP Server MCP server (nibesh0/netsecmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.