Get a summary of a notebook: its sections and a preview of each section's content.
AI agents call get_notebook_summary 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.
The tool queries notebook structure and content for informational purposes only. It performs no creation, modification, deletion, or external execution. The blast radius of misuse is minimal—an agent could read more notebook data than intended, but cannot alter state or trigger external operations. This is a standard Read category tool.
From the tool's definition Tool description states it 'Get[s] a summary of a notebook: its sections and a preview of each section's content.' This is a retrieval operation with no modification capability.
Attacks that exploit this kind of access
Get a summary of a notebook: its sections and a preview of each section's content. 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 get_notebook_summary: 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.
get_notebook_summary 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_notebook_summary 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_notebook_summary. 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_notebook_summary 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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