读取PDF文件并提取文本内容
AI agents call read_pdf_text to retrieve information from Custom PDF 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 queries data from PDF files without side effects. It performs document reading and text extraction, which are non-destructive, non-executable operations. The server context (thesis literature analysis) and sibling tools (get_pdf_info, list_pdfs_in_directory) further confirm a read-only data retrieval purpose. No code execution, data modification, deletion, or financial operations are involved.
From the tool's definition Tool name 'read_pdf_text' and description '读取PDF文件并提取文本内容' (reads PDF files and extracts text content) indicate text extraction from local PDF documents with no modification or deletion capabilities.
Attacks that exploit this kind of access
读取PDF文件并提取文本内容. It is categorised as a Read tool in the Custom PDF MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Custom PDF MCP Server MCP server in PolicyLayer and add a rule for read_pdf_text: 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 Custom PDF MCP Server. Nothing to install.
read_pdf_text 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 read_pdf_text 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 read_pdf_text. 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.
read_pdf_text is provided by the Custom PDF MCP Server MCP server (waicy/-pdf-mcp-). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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