Extract full text content from a book file.
AI agents call get_book_content to retrieve information from Neolibrarian MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries book content without any side effects, reversible modifications, or irreversible changes. It aligns with the Read category definition: 'retrieves or queries data; no side effects.' The low severity reflects minimal blast radius—extracting book text poses no risk of data loss, financial impact, or external system compromise.
From the tool's definition Tool description states 'Extract full text content from a book file.' The server is explicitly described as providing 'read-only access' to local Calibre libraries. The tool performs content extraction without modification, deletion, or execution capabilities.
Attacks that exploit this kind of access
Extract full text content from a book file. It is categorised as a Read tool in the Neolibrarian MCP MCP Server, which means it retrieves data without modifying state.
Register the Neolibrarian MCP server in PolicyLayer and add a rule for get_book_content: 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 Neolibrarian MCP. Nothing to install.
get_book_content 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_content 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_content. 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_content is provided by the Neolibrarian MCP server (pshap/mcp-neolibrarian). 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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