open_terminal · Remote Terminal MCP: Risk & Policy

WHAT IT DOES

What open_terminal does on Remote Terminal

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

WHY IT NEEDS A POLICY

Why open_terminal needs a policy

An AI agent can call open_terminal faster than any human can review — one bad instruction and it creates or modifies resources in Remote Terminal by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

open_terminal Rate-limited

open_terminal 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": {
    "open_terminal": {
      "limits": [
        {
          "counter": "open_terminal_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 Remote Terminal, so you can run agents against it safely.

FAQ

Questions about open_terminal

What does the open_terminal tool do? +

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

How do I enforce a policy on open_terminal? +

Register the Remote Terminal MCP server in PolicyLayer and add a rule for open_terminal: 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 Remote Terminal. Nothing to install.

What risk level is open_terminal? +

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

Can I rate-limit open_terminal? +

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

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

open_terminal is provided by the Remote Terminal MCP server (tim00r/remote-terminal). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.