button · Sl Test MCP: Risk & Policy

WHAT IT DOES

What button does on Sl Test

AI agents invoke button to trigger actions in Sl Test. 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 button needs a policy

This tool triggers external operations on a simulator by simulating hardware button presses. The effects depend on which button is pressed (e.g., 'apple-pay' could initiate payment flows, 'siri' triggers voice assistant, 'home'/'lock' affect device state). While contained within a simulator, it executes real actions with behavioral side effects, placing it in Execute.

From the tool's definition Press a hardware button on the simulator. Available buttons: apple-pay, home, lock, side-button, siri.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

button Rate-limited

button 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": {
    "button": {
      "limits": [
        {
          "counter": "button_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 Sl Test, so you can run agents against it safely.

FAQ

Questions about button

What does the button tool do? +

Press a hardware button on the simulator. Available buttons: apple-pay, home, lock, side-button, siri. It is categorised as a Execute tool in the Sl Test MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on button? +

Register the Sl Test MCP server in PolicyLayer and add a rule for button: 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 Sl Test. Nothing to install.

What risk level is button? +

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

Can I rate-limit button? +

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

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

button is provided by the Sl Test MCP server (sampsonky/xcodebuildmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.