根据关键词搜索书籍，支持按标题、作者或分类搜索
AI agents call search_books to retrieve information from Readbook 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 and retrieves book data based on search criteria (keywords, title, author, category). It does not create, modify, delete, or execute any operations—it only reads and returns search results. This is a standard Read category tool with low severity since it poses minimal risk if misused by an AI agent.
From the tool's definition Tool name and description indicate a search operation: 'search_books' that searches books 'by keywords, supporting search by title, author or category'. This is a retrieval operation with no side effects.
Attacks that exploit this kind of access
根据关键词搜索书籍，支持按标题、作者或分类搜索. It is categorised as a Read tool in the Readbook MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Readbook MCP Server MCP server in PolicyLayer and add a rule for search_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 Readbook MCP Server. Nothing to install.
search_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 search_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 search_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.
search_books is provided by the Readbook MCP Server MCP server (mkafw/readbook-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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