Lists books in the library.
AI agents call list_books to retrieve information from Personal Library 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 and displays book data from the SQLite database without creating, modifying, deleting, or executing any operations. It has minimal blast radius—an AI agent misusing it could only retrieve information, which presents no risk of data loss, code execution, or financial impact.
From the tool's definition Tool name 'list_books' and description 'Lists books in the library' indicate a read-only query operation with no modification or deletion of data.
Attacks that exploit this kind of access
Lists books in the library. It is categorised as a Read tool in the Personal Library MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Personal Library MCP Server MCP server in PolicyLayer and add a rule for list_books: 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 Personal Library MCP Server. Nothing to install.
list_books 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_books 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_books. 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_books is provided by the Personal Library MCP Server MCP server (srgsanky/mcp-demo). 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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