convert_document · LibreOffice MCP Server MCP: Risk & Policy

WHAT IT DOES

What convert_document does on LibreOffice MCP Server

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

WHY IT NEEDS A POLICY

Why convert_document needs a policy

Document format conversion is a reversible modification operation. While it transforms the document's format and potentially its content representation, the original data remains recoverable and the operation is not destructive. This qualifies as Write rather than Execute because the tool performs a specific document operation rather than arbitrary code execution.

From the tool's definition Tool description states 'Convert a document to a different format' which modifies document representation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

convert_document Rate-limited

convert_document 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": {
    "convert_document": {
      "limits": [
        {
          "counter": "convert_document_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 Server, so you can run agents against it safely.

FAQ

Questions about convert_document

What does the convert_document tool do? +

Convert a document to a different format. It is categorised as a Write tool in the LibreOffice MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on convert_document? +

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

What risk level is convert_document? +

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

Can I rate-limit convert_document? +

Yes. Add a rate_limit block to the convert_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.

How do I block convert_document completely? +

Set action: deny in the PolicyLayer policy for convert_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.

What MCP server provides convert_document? +

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