document_export · LibreOffice MCP Tools MCP: Risk & Policy

WHAT IT DOES

What document_export does on LibreOffice MCP Tools

AI agents use document_export to create or update resources in LibreOffice MCP Tools — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your LibreOffice MCP Tools environment.

WHY IT NEEDS A POLICY

Why document_export needs a policy

Exporting creates new file data in alternative formats—a reversible write operation. While it doesn't modify the original document, it produces new persistent data artifacts. This is classified as Write rather than Read because it generates/creates output files, not merely retrieving existing data.

From the tool's definition Tool description states it 'Export[s] a document to a different format using LibreOffice', which creates a new file artifact in a different format.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

document_export Rate-limited

document_export stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "document_export": {
      "limits": [
        {
          "counter": "document_export_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches LibreOffice MCP Tools, so you can run agents against it safely.

FAQ

Questions about document_export

What does the document_export tool do? +

Export a document to a different format using LibreOffice. Supports exporting to: PDF, HTML, TXT, DOCX, XLSX, PPTX, ODT, ODS, ODP, CSV. LibreOffice must be installed. It is categorised as a Write tool in the LibreOffice MCP Tools MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on document_export? +

Register the LibreOffice MCP Tools MCP server in PolicyLayer and add a rule for document_export: 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 LibreOffice MCP Tools. Nothing to install.

What risk level is document_export? +

document_export is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit document_export? +

Yes. Add a rate_limit block to the document_export 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.

How do I block document_export completely? +

Set action: deny in the PolicyLayer policy for document_export. 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.

What MCP server provides document_export? +

document_export is provided by the LibreOffice MCP Tools MCP server (passerbyflutter/libreoffice-mcp-tools). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.