generateFullDesign · Figma MCP Server MCP: Risk & Policy

WHAT IT DOES

What generateFullDesign does on Figma MCP Server

AI agents use generateFullDesign 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 generateFullDesign needs a policy

This tool creates and outputs new files (HTML with inline CSS) based on Figma design data. While the output is reversible and doesn't permanently alter the Figma design itself, it does generate new code artifacts that could be misused if an AI agent produces malformed, malicious, or unintended HTML/CSS.

From the tool's definition Tool name 'generateFullDesign' and description 'Generate a complete HTML file with inline CSS' indicates creation of new files/code artifacts. The description confirms this produces a generated output (a complete HTML file).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

generateFullDesign Rate-limited

generateFullDesign 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": {
    "generateFullDesign": {
      "limits": [
        {
          "counter": "generatefulldesign_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 generateFullDesign

What does the generateFullDesign tool do? +

Generate a complete HTML file with inline CSS from a Figma node. 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 generateFullDesign? +

Register the Figma MCP Server MCP server in PolicyLayer and add a rule for generateFullDesign: 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 generateFullDesign? +

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

Can I rate-limit generateFullDesign? +

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

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

generateFullDesign 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.