presentation_add_slide · LibreOffice MCP Tools MCP

WHAT IT DOES

What presentation_add_slide does on LibreOffice MCP Tools

AI agents use presentation_add_slide 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 presentation_add_slide needs a policy

The tool creates new content in a presentation document, which is a reversible modification. This is a Write operation, not Execute (it doesn't run arbitrary code), Destructive (the action can be undone), or Financial. Severity is medium because while slide creation is modifiable, an agent could spam slides or insert malicious content into presentations, causing document bloat or requiring manual cleanup.

From the tool's definition Tool description states 'Add a new slide to a presentation', which creates new content in the document. The server description indicates it 'enables AI agents to read, write, and edit Office documents', and this tool performs a write operation…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

presentation_add_slide Rate-limited

presentation_add_slide 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": {
    "presentation_add_slide": {
      "limits": [
        {
          "counter": "presentation_add_slide_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 presentation_add_slide

What does the presentation_add_slide tool do? +

Add a new slide to a presentation. 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 presentation_add_slide? +

Register the LibreOffice MCP Tools MCP server in PolicyLayer and add a rule for presentation_add_slide: 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 presentation_add_slide? +

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

Can I rate-limit presentation_add_slide? +

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

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

presentation_add_slide 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.