open_app_preferences

THE RISK

High Risk

This tool triggers a UI action in DaVinci Resolve by opening the Preferences dialog. It executes an external operation (opening a dialog in a running application) rather than simply reading data or writing content. The blast radius is low since it merely opens a dialog without changing settings itself.

From the tool's definition Open the Preferences dialog in DaVinci Resolve

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

HOW TO CONTROL OPEN_APP_PREFERENCES

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

policy.json

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

open_app_preferences 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 DaVinci Resolve MCP — 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

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Go deeper

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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.
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FAQ

What does the open_app_preferences tool do? +

Open the Preferences dialog in DaVinci Resolve. It is categorised as a Execute tool in the DaVinci Resolve MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on open_app_preferences? +

Register the DaVinci Resolve MCP server in PolicyLayer and add a rule for open_app_preferences: 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 DaVinci Resolve MCP. Nothing to install.

What risk level is open_app_preferences? +

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

Can I rate-limit open_app_preferences? +

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

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

open_app_preferences is provided by the DaVinci Resolve MCP server (samuelgursky/davinci-resolve-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 OPEN_APP_PREFERENCES ON DAVINCI RESOLVE MCP DOES

// THE RISK

// HOW TO CONTROL OPEN_APP_PREFERENCES

// EXPLORE