open_document_in_libreoffice

THE RISK

High Risk

This tool executes an external process (opens the LibreOffice GUI application), which constitutes running an external operation. It's not purely reading data — it launches a GUI application on the host system. The readonly flag indicates it can also open in editable mode, potentially allowing user-driven modifications. Misuse could expose sensitive documents or consume system resources, warranting medium severity.

From the tool's definition 'Open a document in LibreOffice GUI for live viewing' — triggers an external application (LibreOffice GUI) to launch and open a file

Documented attack patterns abuse exactly the kind of access open_document_in_libreoffice gives an agent:

HOW TO CONTROL OPEN_DOCUMENT_IN_LIBREOFFICE

PolicyLayer is an MCP gateway — it sits between your AI agents and LibreOffice MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for open_document_in_libreoffice:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "open_document_in_libreoffice": {
      "limits": [
        {
          "counter": "open_document_in_libreoffice_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

open_document_in_libreoffice stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

Create a free account and register LibreOffice MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RATE-LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

More LibreOffice MCP Server tools

Execute refresh_document_in_libreoffice Send a refresh signal to LibreOffice to reload a document Args: path: Pat Write batch_convert_documents Convert multiple documents in a directory to a different format Args: sou Write convert_document Convert a document to a different format Args: source_path: Path to the s Write create_document Create a new LibreOffice document Args: path: Full path where the documen Write create_live_editing_session Create a live editing session with automatic refresh capabilities Args: p Write insert_text_at_position insert_text_at_position Write merge_text_documents Merge multiple text documents into a single document Args: document_paths Read get_document_info Get detailed information about a LibreOffice document Args: path: Path to

All 14 LibreOffice MCP Server tools →

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Go deeper

High-risk tools in LibreOffice MCP Server → Every high-risk tool this server exposes, in one view.
All high-risk MCP tools → Every high-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

What does the open_document_in_libreoffice tool do? +

Open a document in LibreOffice GUI for live viewing Args: path: Path to the document to open readonly: Whether to open in read-only mode (default: False). It is categorised as a Execute tool in the LibreOffice MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on open_document_in_libreoffice? +

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

What risk level is open_document_in_libreoffice? +

open_document_in_libreoffice is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit open_document_in_libreoffice? +

Yes. Add a rate_limit block to the open_document_in_libreoffice 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 open_document_in_libreoffice completely? +

Set action: deny in the PolicyLayer policy for open_document_in_libreoffice. 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 open_document_in_libreoffice? +

open_document_in_libreoffice is provided by the LibreOffice MCP Server MCP server (patrup/mcp-libre). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every LibreOffice MCP Server tool call.

Deterministic rules across all 14 LibreOffice MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

GOVERN LIBREOFFICE →

Free to start. No card required.

14 LibreOffice MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

// WHAT OPEN_DOCUMENT_IN_LIBREOFFICE ON LIBREOFFICE MCP SERVER DOES

// THE RISK

// HOW TO CONTROL OPEN_DOCUMENT_IN_LIBREOFFICE

// EXPLORE