AI agents call get_book to retrieve information from Tilnote without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves book metadata and page listings without creating, modifying, deleting, or executing anything. It is a straightforward read operation with minimal security risk. Low severity because unauthorized access to book details is a data confidentiality concern but has no destructive or operational impact.
From the tool's definition Tool name is 'get_book' and description states 'Get details of a specific Tilnote book including its list of pages' — purely retrieval operation with no modification or side effects.
Attacks that exploit this kind of access
Get details of a specific Tilnote book including its list of pages. It is categorised as a Read tool in the Tilnote MCP Server, which means it retrieves data without modifying state.
Register the Tilnote MCP server in PolicyLayer and add a rule for get_book: 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 Tilnote. Nothing to install.
get_book 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_book 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_book. 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_book is provided by the Tilnote MCP server (wisdomcrane/tilnote-mcp-server). 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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