List all locally available OneNote notebooks.
AI agents call list_notebooks to retrieve information from OneNote MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves information about available notebooks without creating, modifying, or deleting any data. It is a straightforward enumeration operation with minimal security risk. The low severity reflects that listing notebooks poses no direct harm, though it does expose the structure of local OneNote data.
From the tool's definition Tool name 'list_notebooks' and description 'List all locally available OneNote notebooks' indicate a query/retrieval operation with no modification or deletion of data.
Attacks that exploit this kind of access
List all locally available OneNote notebooks. It is categorised as a Read tool in the OneNote MCP Server MCP Server, which means it retrieves data without modifying state.
Register the OneNote MCP Server MCP server in PolicyLayer and add a rule for list_notebooks: 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 OneNote MCP Server. Nothing to install.
list_notebooks 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 list_notebooks 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 list_notebooks. 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.
list_notebooks is provided by the OneNote MCP Server MCP server (mhzarem/onenote-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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