notebook_add_drive · NotebookLM MCP Server MCP

WHAT IT DOES

What notebook_add_drive does on NotebookLM MCP Server

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

WHY IT NEEDS A POLICY

Why notebook_add_drive needs a policy

This tool modifies notebook state by adding a new source document from Google Drive. It does not delete data (not Destructive), execute arbitrary code (not Execute), move money (not Financial), or merely read without side effects (not Read). The capability to add sources reversibly qualifies it as Write.

From the tool's definition Tool name 'notebook_add_drive' combined with description 'Add Google Drive document as source' indicates creation or modification of notebook content by adding a source reference.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

notebook_add_drive Rate-limited

notebook_add_drive 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": {
    "notebook_add_drive": {
      "limits": [
        {
          "counter": "notebook_add_drive_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 NotebookLM MCP Server, so you can run agents against it safely.

FAQ

Questions about notebook_add_drive

What does the notebook_add_drive tool do? +

Add Google Drive document as source. It is categorised as a Write tool in the NotebookLM MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on notebook_add_drive? +

Register the NotebookLM MCP Server MCP server in PolicyLayer and add a rule for notebook_add_drive: 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 Server. Nothing to install.

What risk level is notebook_add_drive? +

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

Can I rate-limit notebook_add_drive? +

Yes. Add a rate_limit block to the notebook_add_drive 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 notebook_add_drive completely? +

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

notebook_add_drive is provided by the NotebookLM MCP Server MCP server (ran-ai-agency/notebooklm-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.