terminal_start · Electron Terminal MCP Server MCP

WHAT IT DOES

What terminal_start does on Electron Terminal MCP Server

AI agents invoke terminal_start to trigger actions in Electron Terminal 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 terminal_start needs a policy

Starting a terminal session is the initialization step for executing arbitrary system commands. Combined with the server's stated purpose of executing commands and managing terminal sessions, this tool enables execution of potentially dangerous operations with unbounded scope. A misused terminal session could compromise system integrity, access sensitive data, or cause destructive operations.

From the tool's definition Server description explicitly states 'executing commands' and 'manage terminal sessions'. Tool name 'terminal_start' starts a terminal session in a system terminal context, which is foundational to command execution.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

terminal_start Rate-limited

terminal_start 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": {
    "terminal_start": {
      "limits": [
        {
          "counter": "terminal_start_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 Electron Terminal MCP Server, so you can run agents against it safely.

FAQ

Questions about terminal_start

What does the terminal_start tool do? +

terminal_start. It is categorised as a Execute tool in the Electron Terminal 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 terminal_start? +

Register the Electron Terminal MCP Server MCP server in PolicyLayer and add a rule for terminal_start: 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 Electron Terminal MCP Server. Nothing to install.

What risk level is terminal_start? +

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

Can I rate-limit terminal_start? +

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

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

terminal_start is provided by the Electron Terminal MCP Server MCP server (nexon33/console-terminal-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.