generateDesignWithScreenshot · Figma MCP Server MCP

WHAT IT DOES

What generateDesignWithScreenshot does on Figma MCP Server

AI agents use generateDesignWithScreenshot to create or update resources in Figma MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Figma MCP Server environment.

WHY IT NEEDS A POLICY

Why generateDesignWithScreenshot needs a policy

This tool creates new web code outputs (HTML/CSS) based on Figma design inputs and screenshots. While generation is reversible (outputs can be deleted or regenerated), it represents a meaningful modification/creation of data artifacts. It does not execute arbitrary commands (Execute category), destroy data (Destructive), or involve financial transactions.

From the tool's definition Tool description states 'Generate HTML/CSS' which creates new code artifacts from design data and screenshots. The output includes generated assets (HTML/CSS files and screenshot URL reference) that are created/produced by the tool.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

generateDesignWithScreenshot Rate-limited

generateDesignWithScreenshot 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.

View as policy code

policy.json

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

LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about generateDesignWithScreenshot

What does the generateDesignWithScreenshot tool do? +

Generate HTML/CSS using both Figma API data and a screenshot for more accurate visual representation. The screenshot URL is included in the output for reference. It is categorised as a Write tool in the Figma MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on generateDesignWithScreenshot? +

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

What risk level is generateDesignWithScreenshot? +

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

Can I rate-limit generateDesignWithScreenshot? +

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

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

generateDesignWithScreenshot is provided by the Figma MCP Server MCP server (minhaztopaz/figma-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.