transcribe_upload_finalize · Video Toolkit MCP

WHAT IT DOES

What transcribe_upload_finalize does on Video Toolkit

AI agents invoke transcribe_upload_finalize to trigger actions in Video Toolkit. 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_upload_finalize needs a policy

This tool triggers active processing operations: it finalizes an upload and then executes compression and AI speech-to-text (Whisper) inference. These are computational side-effects beyond simple data retrieval or storage, placing it in the Execute category.

From the tool's definition Finalize a chunked upload, run compression + Whisper

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

transcribe_upload_finalize Rate-limited

transcribe_upload_finalize 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_upload_finalize": {
      "limits": [
        {
          "counter": "transcribe_upload_finalize_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 Video Toolkit, so you can run agents against it safely.

FAQ

Questions about transcribe_upload_finalize

What does the transcribe_upload_finalize tool do? +

Finalize a chunked upload, run compression + Whisper, return structured JSON (or text with as_text). It is categorised as a Execute tool in the Video Toolkit 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_upload_finalize? +

Register the Video Toolkit MCP server in PolicyLayer and add a rule for transcribe_upload_finalize: 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 Video Toolkit. Nothing to install.

What risk level is transcribe_upload_finalize? +

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

Can I rate-limit transcribe_upload_finalize? +

Yes. Add a rate_limit block to the transcribe_upload_finalize 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_upload_finalize completely? +

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

transcribe_upload_finalize is provided by the Video Toolkit MCP server (jamesanz/transcript-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.