create_frame_widget · Figma MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_frame_widget does on Figma MCP Server

AI agents use create_frame_widget 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 create_frame_widget needs a policy

This tool creates new design elements in Figma, modifying the design document by adding a frame widget. This is a Write operation (creates data reversibly) rather than Read (no retrieval), Execute (no code execution or external operations), or Destructive (frames can be deleted). Severity is medium because misuse could create many unwanted design objects, but the operation is reversible and scoped to Figma documents.

From the tool's definition Tool name 'create_frame_widget' indicates creation of a widget/frame object in Figma. Sibling tools include 'create_rectangle', 'create_circle', 'create_line', 'create_page' which are all Write operations.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_frame_widget Rate-limited

create_frame_widget 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": {
    "create_frame_widget": {
      "limits": [
        {
          "counter": "create_frame_widget_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 create_frame_widget

What does the create_frame_widget tool do? +

create_frame_widget. 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 create_frame_widget? +

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

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

Can I rate-limit create_frame_widget? +

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

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

create_frame_widget is provided by the Figma MCP Server MCP server (sichang824/mcp-figma). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.