Search for videos across all your subscribed channels. Returns matching videos with direct links. No algorithm recommendations - just your channels.
AI agents call search_subscribed_channels to retrieve information from YouTube MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries YouTube subscription data and returns results without creating, modifying, deleting, executing code, or affecting financial systems. It is a straightforward search and retrieval function with no side effects. The low severity reflects minimal risk even if misused—an agent querying subscribed channels poses no safety concern.
From the tool's definition The tool 'search_subscribed_channels' is described as searching and returning matching videos with direct links. The verb 'search' combined with 'returns' indicates data retrieval with no modification.
Attacks that exploit this kind of access
Search for videos across all your subscribed channels. Returns matching videos with direct links. No algorithm recommendations - just your channels. It is categorised as a Read tool in the YouTube MCP Server MCP Server, which means it retrieves data without modifying state.
Register the YouTube MCP Server MCP server in PolicyLayer and add a rule for search_subscribed_channels: 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 MCP Server. Nothing to install.
search_subscribed_channels 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 search_subscribed_channels 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 search_subscribed_channels. 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.
search_subscribed_channels is provided by the YouTube MCP Server MCP server (nareshtt/youtube-mcp-python). 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.
Teams ship this data inside their own products. See what a licence covers →