trigger_studio_mode_transition

THE RISK

High Risk

This tool performs an active operation that executes external effects in OBS Studio (a live streaming/recording application). While not destructive or financial, triggering a scene transition during active broadcast/recording could disrupt the stream or recording, affecting live viewers or captured content.

From the tool's definition The tool description states it 'Triggers the current scene transition' — this executes an action that causes an immediate change in OBS Studio's output (switching between scenes in studio mode).

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

HOW TO CONTROL TRIGGER_STUDIO_MODE_TRANSITION

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

policy.json

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

trigger_studio_mode_transition 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.

Create a free account and register OBS 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.

RATE-LIMIT THIS TOOL →

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EXPLORE

More OBS MCP Server tools

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High-risk tools in OBS MCP Server → Every high-risk tool this server exposes, in one view.
All high-risk MCP tools → Every high-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

What does the trigger_studio_mode_transition tool do? +

Triggers the current scene transition. Only available when studio mode is enabled. It is categorised as a Execute tool in the OBS 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 trigger_studio_mode_transition? +

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

What risk level is trigger_studio_mode_transition? +

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

Can I rate-limit trigger_studio_mode_transition? +

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

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

trigger_studio_mode_transition is provided by the OBS MCP Server MCP server (royshil/obs-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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// WHAT TRIGGER_STUDIO_MODE_TRANSITION ON OBS MCP SERVER DOES

// THE RISK

// HOW TO CONTROL TRIGGER_STUDIO_MODE_TRANSITION

// EXPLORE