close_app · MCP Tauri Automation MCP: Risk & Policy

WHAT IT DOES

What close_app does on MCP Tauri Automation

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

WHY IT NEEDS A POLICY

Why close_app needs a policy

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

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

close_app Rate-limited

close_app 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": {
    "close_app": {
      "limits": [
        {
          "counter": "close_app_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 MCP Tauri Automation, so you can run agents against it safely.

FAQ

Questions about close_app

What does the close_app tool do? +

Close the currently running Tauri application gracefully. It is categorised as a Write tool in the MCP Tauri Automation MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on close_app? +

Register the MCP Tauri Automation MCP server in PolicyLayer and add a rule for close_app: 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 MCP Tauri Automation. Nothing to install.

What risk level is close_app? +

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

Can I rate-limit close_app? +

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

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

close_app is provided by the MCP Tauri Automation MCP server (radek44/mcp-tauri-automation). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.