Download a document file as base64-encoded data. Choose between original uploaded file or processed/archived version with OCR improvements.
AI agents call download_document to retrieve information from Paperless-NGX 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 data (a document file) without side effects. While downloaded documents are sensitive in some contexts, the tool itself performs a passive read operation. Severity is low because document retrieval alone poses minimal risk compared to write, execute, or destructive operations; impact depends entirely on document contents and access controls managed elsewhere.
From the tool's definition Tool description states it 'Download[s] a document file as base64-encoded data' with options for 'original uploaded file or processed/archived version'. No modification, deletion, or execution occurs—only retrieval of existing document content.
Documented attack patterns abuse exactly the kind of access download_document gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Paperless-NGX MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for download_document:
{
"version": "1",
"default": "deny",
"tools": {
"download_document": {}
}
}download_document is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Download a document file as base64-encoded data. Choose between original uploaded file or processed/archived version with OCR improvements. It is categorised as a Read tool in the Paperless-NGX MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Paperless-NGX MCP Server MCP server in PolicyLayer and add a rule for download_document: 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 Paperless-NGX MCP Server. Nothing to install.
download_document 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 download_document 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 download_document. 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.
download_document is provided by the Paperless-NGX MCP Server MCP server (nloui/paperless-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 16 Paperless-NGX MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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16 Paperless-NGX MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.