list_open_presentations

THE RISK

Low Risk

Why list_open_presentations needs a policy

This tool performs a read-only operation to enumerate open presentations. It has no side effects, does not modify data, and does not execute arbitrary code or access external systems. The blast radius of misuse is minimal—an agent could only learn which presentations are currently open in the user's environment.

From the tool's definition Tool name 'list_open_presentations' and description 'Lists currently open PowerPoint presentations' indicate a query operation that retrieves information without modifying or deleting any data.

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

POLICY

How to control list_open_presentations

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_open_presentations": {}
  }
}

list_open_presentations is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register PowerPoint 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.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More PowerPoint MCP Server tools

Destructive delete_slide Delete a slide from the presentation. Write add_rectangle Adds a rectangle shape to a specific slide (dimensions in points). Write add_shape Add a shape to a slide. Write add_slide Add a new slide to the presentation. Write add_text Add text to a slide. Write add_text_box Adds a text box to a specific slide (dimensions in points). Write add_worksheet Adds a worksheet to the specified workbook. Optionally provide a sheet_name. Write apply_template Apply a template to a presentation.

All 37 PowerPoint MCP Server tools →

Read tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about list_open_presentations

What does the list_open_presentations tool do? +

Lists currently open PowerPoint presentations. It is categorised as a Read tool in the PowerPoint MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_open_presentations? +

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

What risk level is list_open_presentations? +

list_open_presentations is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_open_presentations? +

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

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

list_open_presentations is provided by the PowerPoint MCP Server MCP server (jenstangen1/pptx-xlsx-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every PowerPoint MCP Server tool call.

Start from PowerPoint MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →