mind_map_create · NotebookLM MCP Server MCP: Risk & Policy

WHAT IT DOES

What mind_map_create does on NotebookLM MCP Server

AI agents use mind_map_create 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 mind_map_create needs a policy

This tool creates and persists a new mind map artifact in NotebookLM. It is reversible (mind maps can be deleted or modified later), so it qualifies as Write rather than Destructive. The blast radius of accidental generation is minimal—at worst, an unwanted mind map is created in the user's notebook, which is easily remediated. No code execution, deletions, or financial implications are involved.

From the tool's definition Tool description states 'Generate and save mind map', where 'save' indicates persistent data creation/modification. The requirement for 'confirm=True after user approval' confirms it performs a state-changing operation rather than merely reading.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

mind_map_create Rate-limited

mind_map_create 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": {
    "mind_map_create": {
      "limits": [
        {
          "counter": "mind_map_create_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 mind_map_create

What does the mind_map_create tool do? +

Generate and save mind map. Requires confirm=True after user approval. 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 mind_map_create? +

Register the NotebookLM MCP Server MCP server in PolicyLayer and add a rule for mind_map_create: 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 mind_map_create? +

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

Can I rate-limit mind_map_create? +

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

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

mind_map_create is provided by the NotebookLM MCP Server MCP server (set2374/notebooklm-mcp-archived). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.