bazel_xcode_open_device_hub

SERVERXcodeBazelMCP SOURCExcodebazelmcp/xcodebazelmcp

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/xcodebazelmcp-xcodebazelmcp/bazel-xcode-open-device-hub.md

WHAT IT DOES

What bazel_xcode_open_device_hub does on XcodeBazelMCP

AI agents invoke bazel_xcode_open_device_hub to trigger actions in XcodeBazelMCP. 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.

RISK

Why bazel_xcode_open_device_hub is rated High

This tool launches an external application (DeviceHub.app) and triggers device pairing/interaction operations. Opening a GUI app and interacting with physical hardware goes beyond a simple read — it executes an external process with potential side effects on device state. Severity is medium since it operates on physical devices but is limited to a device management GUI context.

From the tool's definition Open DeviceHub.app — the GUI device manager bundled with Xcode-beta / Xcode 27 — to inspect, pair, and interact with physical devices

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs bazel_xcode_open_device_hub safely

PolicyLayer is an MCP gateway: it sits between your AI agents and XcodeBazelMCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For bazel_xcode_open_device_hub, this is the rule to start with:

bazel_xcode_open_device_hub Rate-limited

bazel_xcode_open_device_hub 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": {
    "bazel_xcode_open_device_hub": {
      "limits": [
        {
          "counter": "bazel_xcode_open_device_hub_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect XcodeBazelMCP, apply this rule, and every bazel_xcode_open_device_hub call is checked against it from then on.

FAQ

Questions about bazel_xcode_open_device_hub

What does the bazel_xcode_open_device_hub tool do? +

Open DeviceHub.app — the GUI device manager bundled with Xcode-beta / Xcode 27 — to inspect, pair, and interact with physical devices. Falls back with guidance when no DeviceHub is installed (older Xcode). It is categorised as a Execute tool in the XcodeBazelMCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on bazel_xcode_open_device_hub? +

Register the XcodeBazel MCP server in PolicyLayer and add a rule for bazel_xcode_open_device_hub: 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 XcodeBazelMCP. Nothing to install.

What risk level is bazel_xcode_open_device_hub? +

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

Can I rate-limit bazel_xcode_open_device_hub? +

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

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

bazel_xcode_open_device_hub is provided by the XcodeBazel MCP server (xcodebazelmcp/xcodebazelmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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