start_slideshow · Keynote MCP Server MCP: Risk & Policy

WHAT IT DOES

What start_slideshow does on Keynote MCP Server

AI agents invoke start_slideshow to trigger actions in Keynote MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why start_slideshow needs a policy

This tool executes an external operation (launching a presentation display) through the Keynote application, making it Execute rather than Read or Write. It is not Destructive (does not delete/overwrite data), Financial, or Other.

From the tool's definition Tool starts a slideshow via programmatic control, which triggers an external operation (presentation display/execution) whose effects depend on arguments (which slide to start from).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

start_slideshow Rate-limited

start_slideshow 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.

View as policy code

policy.json

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

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about start_slideshow

What does the start_slideshow tool do? +

Starts the slideshow of the frontmost Keynote presentation. Optionally start from a specific slide. It is categorised as a Execute tool in the Keynote 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 start_slideshow? +

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

What risk level is start_slideshow? +

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

Can I rate-limit start_slideshow? +

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

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

start_slideshow is provided by the Keynote MCP Server MCP server (superdwayne/keynotemp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.