// MCP TOOL REFERENCE

Low Risk

check_audio_dependencies

ServerVoice Mode
CategoryRead

How to control check_audio_dependencies ↓

WHAT IT DOES

What check_audio_dependencies does on Voice Mode

AI agents call check_audio_dependencies to retrieve information from Voice Mode without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

THE RISK

Low Risk

Why check_audio_dependencies needs a policy

This tool performs system diagnostics and status checks, returning information about audio dependencies and their installation status. It has no side effects—it does not install, configure, execute commands, or modify system state. The mention of 'installation commands' is informational guidance only, not actual installation. This is a read operation with minimal security risk.

From the tool's definition The tool description states it 'checks for required system packages, PulseAudio status, and Python audio libraries' and 'provides specific installation commands.' The use of words like 'Check,' 'provide guidance,' and 'Returns: Dictionary containing'…

Documented attack patterns abuse exactly the kind of access check_audio_dependencies gives an agent:

POLICY

How to control check_audio_dependencies

PolicyLayer is an MCP gateway — it sits between your AI agents and Voice Mode, and nothing reaches the server without passing your rules. This is the rule we recommend for check_audio_dependencies:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "check_audio_dependencies": {}
  }
}

check_audio_dependencies is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Voice Mode — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Voice Mode tools

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about check_audio_dependencies

What does the check_audio_dependencies tool do? +

Check system audio dependencies and provide installation guidance. This tool checks for required system packages, PulseAudio status, and Python audio libraries. It provides specific installation commands for missing dependencies based on your platform. Useful when: - Voice mode fails with audio errors - Setting up on a new system - Troubleshooting WSL audio issues Returns: Dictionary containing: - platform: System platform (Linux, macOS, Windows) - packages: Status of system packages (Linux only) - missing_packages: List of packages that need installation - install_command: Command to install missing packages - pulseaudio: PulseAudio status (Linux only) - diagnostics: List of diagnostic findings - recommendations: Specific recommendations for your setup. It is categorised as a Read tool in the Voice Mode MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on check_audio_dependencies? +

Register the Voice Mode MCP server in PolicyLayer and add a rule for check_audio_dependencies: 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 Voice Mode. Nothing to install.

What risk level is check_audio_dependencies? +

check_audio_dependencies is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit check_audio_dependencies? +

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

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

check_audio_dependencies is provided by the Voice Mode MCP server (mbailey/voicemode). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.