set_port_off · AC Infinity MCP: Risk & Policy

WHAT IT DOES

What set_port_off does on AC Infinity MCP

AI agents use set_port_off to create or update resources in AC Infinity MCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your AC Infinity MCP environment.

WHY IT NEEDS A POLICY

Why set_port_off needs a policy

Based on the tool name and server context, this tool likely turns off a device port (e.g., fan, grow light, or other connected equipment). This is a Write/Execute action that changes the state of physical hardware. It could impact plant grow environments if misused (e.g., turning off ventilation or lighting). However, the description is empty, reducing confidence.

From the tool's definition Tool name 'set_port_off' on a server that controls AC Infinity controllers, fan speeds, and port states

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

set_port_off Rate-limited

set_port_off stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "set_port_off": {
      "limits": [
        {
          "counter": "set_port_off_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about set_port_off

What does the set_port_off tool do? +

set_port_off. It is categorised as a Write tool in the AC Infinity MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on set_port_off? +

Register the AC Infinity MCP server in PolicyLayer and add a rule for set_port_off: 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 AC Infinity MCP. Nothing to install.

What risk level is set_port_off? +

set_port_off is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit set_port_off? +

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

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

set_port_off is provided by the AC Infinity MCP server (ober37/ac-infinity-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.