ocr_pdf
AI agents call ocr_pdf to retrieve information from PDF Reader MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
OCR is fundamentally a text extraction operation that reads image content and converts it to searchable text. While the description is empty, the tool name and context from sibling Read-category tools (extract_page_text, extract_pdf_images, get_pdf_metadata) strongly indicate this is a Read operation with no side effects.
From the tool's definition Tool name 'ocr_pdf' indicates Optical Character Recognition on PDF files, which extracts text from images/scanned documents. Sibling tools like 'extract_page_text' and 'extract_pdf_images' are clearly Read operations.
Attacks that exploit this kind of access
ocr_pdf. It is categorised as a Read tool in the PDF Reader MCP Server MCP Server, which means it retrieves data without modifying state.
Register the PDF Reader MCP Server MCP server in PolicyLayer and add a rule for ocr_pdf: 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 PDF Reader MCP Server. Nothing to install.
ocr_pdf 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 ocr_pdf 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 ocr_pdf. 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.
ocr_pdf is provided by the PDF Reader MCP Server MCP server (lihongwen/pdfreadermcp). 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 →