list_listening_ports

A read tool on the Allcanuse MCP server.

SERVERAllcanuse SOURCEra1nyxin/allcanuse-mcp

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/ra1nyxin-allcanuse-mcp/list-listening-ports.md

WHAT IT DOES

What list_listening_ports does on Allcanuse

AI agents call list_listening_ports to retrieve information from Allcanuse 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_listening_ports is rated Low

This tool retrieves information about ports currently in a listening state on the system. No data is modified, deleted, or executed—it is purely informational, similar to running 'netstat -l' or 'ss -l'. Even if misused by an AI agent, the worst outcome is information disclosure about the local system's network configuration, which is low-risk compared to command execution or data destruction.

From the tool's definition Tool name 'list_listening_ports' indicates querying/retrieving network state information. Description is empty, but the name strongly suggests a read-only network diagnostic operation with no side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_listening_ports safely

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

list_listening_ports Allowed

list_listening_ports 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_listening_ports": {}
  }
}

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

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

FAQ

Questions about list_listening_ports

What does the list_listening_ports tool do? +

list_listening_ports is a read tool on the Allcanuse MCP server. It is categorised as a Read tool in the Allcanuse MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_listening_ports? +

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

What risk level is list_listening_ports? +

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

Can I rate-limit list_listening_ports? +

Yes. Add a rate_limit block to the list_listening_ports 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_listening_ports completely? +

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

list_listening_ports is provided by the Allcanuse MCP server (ra1nyxin/allcanuse-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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