Get statistics about your notebook library (total notebooks, usage, etc.)
AI agents call get_library_stats to retrieve information from NotebookLM MCP Structured without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries statistical information about existing notebooks. It performs no data modification, deletion, code execution, or financial operations. The action is purely informational, making it a Read category tool with low severity as the exposure of usage statistics poses minimal risk to system integrity or user data.
From the tool's definition Tool name 'get_library_stats' and description 'Get statistics about your notebook library (total notebooks, usage, etc.)' indicates retrieval of aggregated metadata without modification or side effects.
Documented attack patterns abuse exactly the kind of access get_library_stats gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and NotebookLM MCP Structured, and nothing reaches the server without passing your rules. This is the rule we recommend for get_library_stats:
{
"version": "1",
"default": "deny",
"tools": {
"get_library_stats": {}
}
}get_library_stats is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get statistics about your notebook library (total notebooks, usage, etc.). It is categorised as a Read tool in the NotebookLM MCP Structured MCP Server, which means it retrieves data without modifying state.
Register the NotebookLM MCP Structured MCP server in PolicyLayer and add a rule for get_library_stats: 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 NotebookLM MCP Structured. Nothing to install.
get_library_stats 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_library_stats 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_library_stats. 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_library_stats is provided by the NotebookLM MCP Structured MCP server (paolodalprato/notebooklm-mcp-structured). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 15 NotebookLM MCP Structured tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
15 NotebookLM MCP Structured tools catalogued and risk-classified — across an index of 42,500+ MCP servers.