audio_list

THE RISK

Low Risk

Why audio_list needs a policy

This tool retrieves and queries existing audio actors without modifying, deleting, or executing any code. It is a straightforward read operation. The blast radius of misuse is minimal—an AI agent could at most enumerate audio assets, which poses no security or operational risk.

From the tool's definition Tool name 'audio_list' and description 'List all audio/ambient sound actors in the level' — a pure query operation with no side effects.

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

POLICY

How to control audio_list

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

policy.json

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

audio_list 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 Uefn — 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 Uefn tools

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All 143 Uefn tools →

Read tools on other servers

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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 audio_list

What does the audio_list tool do? +

List all audio/ambient sound actors in the level. It is categorised as a Read tool in the Uefn MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on audio_list? +

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

What risk level is audio_list? +

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

Can I rate-limit audio_list? +

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

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

audio_list is provided by the Uefn MCP server (quangdang46/uefn-verse-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Uefn tool call.

Start from Uefn, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →