simctl_privacy_control · Simctl MCP: Risk & Policy

WHAT IT DOES

What simctl_privacy_control does on Simctl

AI agents invoke simctl_privacy_control to trigger actions in Simctl. 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 simctl_privacy_control needs a policy

Based on the tool name, this likely maps to 'xcrun simctl privacy' which grants or revokes privacy permissions (e.g., camera, location, contacts) on an iOS Simulator. This triggers an external operation that modifies simulator permission state.

From the tool's definition Tool name 'simctl_privacy_control' on a server providing 'xcrun simctl commands' for iOS Simulator management. Description is empty.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

simctl_privacy_control Rate-limited

simctl_privacy_control 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": {
    "simctl_privacy_control": {
      "limits": [
        {
          "counter": "simctl_privacy_control_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 Simctl, so you can run agents against it safely.

FAQ

Questions about simctl_privacy_control

What does the simctl_privacy_control tool do? +

simctl_privacy_control. It is categorised as a Execute tool in the Simctl MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on simctl_privacy_control? +

Register the Simctl MCP server in PolicyLayer and add a rule for simctl_privacy_control: 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 Simctl. Nothing to install.

What risk level is simctl_privacy_control? +

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

Can I rate-limit simctl_privacy_control? +

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

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

simctl_privacy_control is provided by the Simctl MCP server (nzrsky/simctl-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

// THE FULL RECORD

simctl_privacy_control is one line of Simctl's registry record.

The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.

Teams ship this data inside their own products. See what a licence covers →