generate_audio · Mcp Media Engine MCP: Risk & Policy

WHAT IT DOES

What generate_audio does on Mcp Media Engine

AI agents use generate_audio to create or update resources in Mcp Media Engine — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mcp Media Engine environment.

WHY IT NEEDS A POLICY

Why generate_audio needs a policy

This tool creates new data (audio files) through TTS synthesis, matching the Write category definition of 'creates or modifies data reversibly'. It is not Destructive (audio can be removed), not Execute (doesn't run arbitrary code or trigger unpredictable operations), and not Financial.

From the tool's definition Tool description states 'Generate audio from text' which creates new media content. The action is reversible (generated audio can be deleted/replaced) and produces data without irreversible side effects.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

generate_audio Rate-limited

generate_audio stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "generate_audio": {
      "limits": [
        {
          "counter": "generate_audio_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Mcp Media Engine, so you can run agents against it safely.

FAQ

Questions about generate_audio

What does the generate_audio tool do? +

Generate audio from text using text-to-speech (TTS) synthesis. It is categorised as a Write tool in the Mcp Media Engine MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on generate_audio? +

Register the Mcp Media Engine MCP server in PolicyLayer and add a rule for generate_audio: 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 Mcp Media Engine. Nothing to install.

What risk level is generate_audio? +

generate_audio is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit generate_audio? +

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

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

generate_audio is provided by the Mcp Media Engine MCP server (tr1ckymag1ca1/mcp-media-engine). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.