Delete notebook permanently. IRREVERSIBLE. Requires confirm=True.
AI agents call notebook_delete to permanently remove resources in NotebookLM MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool permanently deletes notebooks without recovery options, which is the defining characteristic of the Destructive category. The confirmation flag requirement does not reduce the severity since an agent could bypass it programmatically. The blast radius is high because an agent could delete all user notebooks or research work, though not financial in nature, hence high rather than critical severity.
From the tool's definition Tool description explicitly states 'Delete notebook permanently' and 'IRREVERSIBLE' with a confirmation requirement, indicating this tool irreversibly removes data without undo capability.
Attacks that exploit this kind of access
Delete notebook permanently. IRREVERSIBLE. Requires confirm=True. It is categorised as a Destructive tool in the NotebookLM MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the NotebookLM MCP Server MCP server in PolicyLayer and add a rule for notebook_delete: 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.
notebook_delete is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the notebook_delete 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 notebook_delete. 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.
notebook_delete 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.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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