obs-open-input-properties

THE RISK

High Risk

This tool triggers a UI action in OBS Studio (opening a dialog window), which is an external operation with side effects on the application state. It doesn't read data, write/modify data persistently, or destroy anything — it executes a UI interaction. The blast radius is low since it merely opens a dialog without modifying settings automatically.

From the tool's definition Opens the properties dialog of an input

Documented attack patterns abuse exactly the kind of access obs-open-input-properties gives an agent:

HOW TO CONTROL OBS-OPEN-INPUT-PROPERTIES

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 obs-open-input-properties:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "obs-open-input-properties": {
      "limits": [
        {
          "counter": "obs-open-input-properties_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

obs-open-input-properties 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 →

Free to start. No card required.

EXPLORE

More OBS MCP Server tools

Destructive obs-remove-input Removes an existing input Destructive obs-remove-profile Removes a profile. If the current profile is chosen, it will change to a different profile Destructive obs-remove-scene Remove a scene from OBS Destructive obs-remove-scene-item Remove a scene item from a scene Destructive obs-remove-source-filter Removes a filter from a source Destructive remove_scene Removes a scene from OBS. Args: scene_name: Name of the scene to remove Destructive remove_scene_item Removes a scene item from a scene. Args: scene_name: Name of the scene th Execute obs-start-output Starts an output

All 200 OBS MCP Server tools →

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Go deeper

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 obs-open-input-properties tool do? +

Opens the properties dialog of an input. 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 obs-open-input-properties? +

Register the OBS MCP Server MCP server in PolicyLayer and add a rule for obs-open-input-properties: 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 obs-open-input-properties? +

obs-open-input-properties is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit obs-open-input-properties? +

Yes. Add a rate_limit block to the obs-open-input-properties 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 obs-open-input-properties completely? +

Set action: deny in the PolicyLayer policy for obs-open-input-properties. 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 obs-open-input-properties? +

obs-open-input-properties 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 OBS-OPEN-INPUT-PROPERTIES ON OBS MCP SERVER DOES

// THE RISK

// HOW TO CONTROL OBS-OPEN-INPUT-PROPERTIES

// EXPLORE