Extracts form fields and their metadata from a PDF document using base64 string or a remote URL.
AI agents call extract_form_fields to retrieve information from PDF Generator API 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 metadata from existing PDF documents without creating, modifying, deleting, or executing anything. It is a pure read operation similar to 'get' or 'fetch'. The low severity reflects that extracting form field metadata poses minimal risk even if misused by an agent.
From the tool's definition Tool name 'extract_form_fields' and description 'Extracts form fields and their metadata from a PDF document' indicate data retrieval with no modification or side effects.
Attacks that exploit this kind of access
Extracts form fields and their metadata from a PDF document using base64 string or a remote URL. It is categorised as a Read tool in the PDF Generator API MCP Server MCP Server, which means it retrieves data without modifying state.
Register the PDF Generator API MCP Server MCP server in PolicyLayer and add a rule for extract_form_fields: 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 Generator API MCP Server. Nothing to install.
extract_form_fields 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 extract_form_fields 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 extract_form_fields. 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.
extract_form_fields is provided by the PDF Generator API MCP Server MCP server (pdfgeneratorapi/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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