PFW_get_document_download
AI agents call PFW_get_document_download to retrieve information from USPTO Patent File Wrapper MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Although the tool description is empty, the naming pattern and context from sibling tools strongly suggest this retrieves or downloads patent-related documents without modification or deletion. The tool appears to be a document retrieval function consistent with the server's purpose of providing 'secure browser-accessible downloads'. Downloading public USPTO patent documents poses minimal risk, hence low severity.
From the tool's definition Tool name includes 'get_document_download', indicating retrieval of documents. Sibling tools like 'get_application_documents', 'get_granted_patent_documents_download', and 'get_patent_or_application_xml' are all read-only retrieval operations from the USPTO…
Attacks that exploit this kind of access
PFW_get_document_download. It is categorised as a Read tool in the USPTO Patent File Wrapper MCP Server MCP Server, which means it retrieves data without modifying state.
Register the USPTO Patent File Wrapper MCP Server MCP server in PolicyLayer and add a rule for PFW_get_document_download: 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 USPTO Patent File Wrapper MCP Server. Nothing to install.
PFW_get_document_download 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 PFW_get_document_download 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 PFW_get_document_download. 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.
PFW_get_document_download is provided by the USPTO Patent File Wrapper MCP Server MCP server (john-walkoe/uspto_pfw_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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