stage_set_screen_layout

THE RISK

Medium Risk

Why stage_set_screen_layout needs a policy

This tool modifies the layout configuration of a stage screen in ProPresenter 7, which is a reversible change (layouts can be changed again). It does not delete data (Destructive), execute arbitrary code (Execute), involve financial transactions (Financial), or merely read data (Read). It fits the Write category as it creates or modifies data reversibly.

From the tool's definition Tool name 'stage_set_screen_layout' and description 'Set the layout for a specific stage screen' indicate a modification operation. The verb 'set' implies changing existing configuration/state.

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

POLICY

How to control stage_set_screen_layout

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "stage_set_screen_layout": {
      "limits": [
        {
          "counter": "stage_set_screen_layout_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

stage_set_screen_layout 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.

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

LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Propresenter tools

Destructive clear_layer Clear a specific layer (audio, props, messages, announcements, slide, media, video_input) Destructive messages_delete Delete a specific message Destructive props_clear Clear a specific prop from display Destructive props_delete Delete a specific prop Destructive props_delete_collection Delete a specific prop collection Destructive stage_delete_layout Delete a specific stage layout Execute clear_trigger_group Trigger a specific clear group Execute props_pause_auto_clear Pause auto-clear for a specific prop

All 177 Propresenter tools →

Write tools on other servers

M-Team MCP Server download_torrent YouTube MCP Server generate_video_title Android Forensics ADB MCP Server combine_reports 0xarchive web3_signup

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about stage_set_screen_layout

What does the stage_set_screen_layout tool do? +

Set the layout for a specific stage screen. It is categorised as a Write tool in the Propresenter MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on stage_set_screen_layout? +

Register the Propresenter MCP server in PolicyLayer and add a rule for stage_set_screen_layout: 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 Propresenter. Nothing to install.

What risk level is stage_set_screen_layout? +

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

Can I rate-limit stage_set_screen_layout? +

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

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

stage_set_screen_layout is provided by the Propresenter MCP server (@alxpark/propresenter-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Propresenter tool call.

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

CHECK YOUR STACK →