metube_cancel_add · Metube MCP: Risk & Policy

WHAT IT DOES

What metube_cancel_add does on Metube

AI agents invoke metube_cancel_add to trigger actions in Metube. 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 metube_cancel_add needs a policy

This tool cancels/aborts an in-progress operation (the add/queue operation). It is an active intervention that triggers an external state change on the MeTube instance — stopping a running process. It doesn't read data, write/create new data, delete existing data, or move money, but it does trigger an operational effect on a running process, making Execute the best fit.

From the tool's definition Cancel the current add operation (useful for large playlists)

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

metube_cancel_add Rate-limited

metube_cancel_add 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": {
    "metube_cancel_add": {
      "limits": [
        {
          "counter": "metube_cancel_add_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 Metube, so you can run agents against it safely.

FAQ

Questions about metube_cancel_add

What does the metube_cancel_add tool do? +

Cancel the current add operation (useful for large playlists). It is categorised as a Execute tool in the Metube MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on metube_cancel_add? +

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

What risk level is metube_cancel_add? +

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

Can I rate-limit metube_cancel_add? +

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

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

metube_cancel_add is provided by the Metube MCP server (junglem0nkey/metube-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.