Remove a subscription for the authenticated user, using the YouTube Data API v3 subscriptions.delete endpoint. IMPORTANT: This tool takes the subscription resource ID (the \
AI agents call youtube_unsubscribe to permanently remove resources in Youtube — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool calls the YouTube Data API delete endpoint to remove a subscription. Deletion of a subscription is irreversible (the user would have to manually re-subscribe), placing it in the Destructive category. Severity is medium because the blast radius is limited to losing a single channel subscription for the authenticated user, which is recoverable by re-subscribing but is not automatically undone.
From the tool's definition 'Remove a subscription for the authenticated user' and 'subscriptions.delete endpoint' — explicitly deletes a subscription resource irreversibly.
Attacks that exploit this kind of access
Remove a subscription for the authenticated user, using the YouTube Data API v3 subscriptions.delete endpoint. IMPORTANT: This tool takes the subscription resource ID (the \. It is categorised as a Destructive tool in the Youtube MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Youtube MCP server in PolicyLayer and add a rule for youtube_unsubscribe: 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 Youtube. Nothing to install.
youtube_unsubscribe is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the youtube_unsubscribe 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.
Set action: deny in the PolicyLayer policy for youtube_unsubscribe. 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.
youtube_unsubscribe is provided by the Youtube MCP server (tuitamogamer-gpt/youtube-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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