获取EPUB文件的基本信息，包括元数据和章节结构
AI agents call epub_info to retrieve information from Epub Parser without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs information retrieval and querying of EPUB file metadata and structure. It has no write, delete, execute, or financial capabilities. The blast radius of misuse is minimal—it can only expose data already present in the EPUB file. This is a standard read operation.
From the tool's definition Tool description states it 'retrieves' basic information including metadata and chapter structure from EPUB files. The verb '获取' (get/retrieve) and the function name 'epub_info' indicate data extraction with no modification capability.
Attacks that exploit this kind of access
获取EPUB文件的基本信息，包括元数据和章节结构. It is categorised as a Read tool in the Epub Parser MCP Server, which means it retrieves data without modifying state.
Register the Epub Parser MCP server in PolicyLayer and add a rule for epub_info: 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 Epub Parser. Nothing to install.
epub_info 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 epub_info 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 epub_info. 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.
epub_info is provided by the Epub Parser MCP server (kala51773/epub-parser-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.
Teams ship this data inside their own products. See what a licence covers →