transcribe_audio · Descript Complete MCP: Risk & Policy

WHAT IT DOES

What transcribe_audio does on Descript Complete

AI agents invoke transcribe_audio to trigger actions in Descript Complete. 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 transcribe_audio needs a policy

This tool triggers an external transcription job/process by submitting a URL to a processing pipeline. It initiates an asynchronous operation (returning a job ID) rather than simply reading existing data or writing static content — it executes a processing workflow.

From the tool's definition Submit an audio file URL for transcription. Returns a job ID to poll with get_transcript.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

transcribe_audio Rate-limited

transcribe_audio 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": {
    "transcribe_audio": {
      "limits": [
        {
          "counter": "transcribe_audio_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 Descript Complete, so you can run agents against it safely.

FAQ

Questions about transcribe_audio

What does the transcribe_audio tool do? +

Submit an audio file URL for transcription. Returns a job ID to poll with get_transcript. Example: transcribe_audio({ url:. It is categorised as a Execute tool in the Descript Complete MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on transcribe_audio? +

Register the Descript Complete MCP server in PolicyLayer and add a rule for transcribe_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 Descript Complete. Nothing to install.

What risk level is transcribe_audio? +

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

Can I rate-limit transcribe_audio? +

Yes. Add a rate_limit block to the transcribe_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 transcribe_audio completely? +

Set action: deny in the PolicyLayer policy for transcribe_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 transcribe_audio? +

transcribe_audio is provided by the Descript Complete MCP server (josephtandle/descript-complete). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.