Get user's YouTube channel subscriptions (requires OAuth2 access token).
AI agents call get_youtube_subscriptions to retrieve information from PersonalizationMCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves subscription information from a user's YouTube account without modifying, deleting, or executing any operations. It is a Read operation. However, severity is elevated to medium rather than low because: (1) it accesses personal preference data that could reveal user interests, viewing habits, and behavioral patterns; (2) it requires OAuth2 authentication, meaning it operates with delegated user…
From the tool's definition Tool name is 'get_youtube_subscriptions' and description states 'Get user's YouTube channel subscriptions'. The verb 'Get' and the read-only nature of retrieving subscription data indicates no modification or deletion of data.
Documented attack patterns abuse exactly the kind of access get_youtube_subscriptions gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and PersonalizationMCP, and nothing reaches the server without passing your rules. This is the rule we recommend for get_youtube_subscriptions:
{
"version": "1",
"default": "deny",
"tools": {
"get_youtube_subscriptions": {}
}
}get_youtube_subscriptions is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get user's YouTube channel subscriptions (requires OAuth2 access token). It is categorised as a Read tool in the PersonalizationMCP MCP Server, which means it retrieves data without modifying state.
Register the Personalization MCP server in PolicyLayer and add a rule for get_youtube_subscriptions: 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 PersonalizationMCP. Nothing to install.
get_youtube_subscriptions is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_youtube_subscriptions 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 get_youtube_subscriptions. 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.
get_youtube_subscriptions is provided by the Personalization MCP server (yangliangwei/personalizationmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 88 PersonalizationMCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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88 PersonalizationMCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.