metube_upload_cookies · Metube MCP: Risk & Policy

WHAT IT DOES

What metube_upload_cookies does on Metube

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

WHY IT NEEDS A POLICY

Why metube_upload_cookies needs a policy

This tool creates or updates authentication state (cookies) in the MeTube instance, which is a reversible write operation. While cookies enable access to restricted content, uploading them does not directly execute downloads, delete data, or move money.

From the tool's definition Tool name 'metube_upload_cookies' and description 'Upload cookies for authenticated downloads' indicate creation/modification of authentication credentials stored in the system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

metube_upload_cookies Rate-limited

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

FAQ

Questions about metube_upload_cookies

What does the metube_upload_cookies tool do? +

Upload cookies for authenticated downloads (e.g., age-restricted content). It is categorised as a Write tool in the Metube MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on metube_upload_cookies? +

Register the Metube MCP server in PolicyLayer and add a rule for metube_upload_cookies: 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_upload_cookies? +

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

Can I rate-limit metube_upload_cookies? +

Yes. Add a rate_limit block to the metube_upload_cookies 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_upload_cookies completely? +

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

metube_upload_cookies 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.