create_rectangle · Figmad MCP: Risk & Policy

WHAT IT DOES

What create_rectangle does on Figmad

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

WHY IT NEEDS A POLICY

Why create_rectangle needs a policy

This tool creates new design elements in Figma, which is a reversible write operation. It does not execute arbitrary code, delete assets, or create financial obligations. The blast radius is minimal—a misused tool would only add unwanted design elements that can be easily undone. Severity is low because Figma designs are typically non-critical assets and the action is fully reversible.

From the tool's definition Tool name 'create_rectangle' and description stating 'Create a rectangle shape in Figma' with customizable properties (fills, rounded corners) indicates data creation/modification.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_rectangle Rate-limited

create_rectangle 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_rectangle": {
      "limits": [
        {
          "counter": "create_rectangle_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 Figmad, so you can run agents against it safely.

FAQ

Questions about create_rectangle

What does the create_rectangle tool do? +

Create a rectangle shape in Figma. Can have fills and rounded corners. It is categorised as a Write tool in the Figmad 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_rectangle? +

Register the Figmad MCP server in PolicyLayer and add a rule for create_rectangle: 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 Figmad. Nothing to install.

What risk level is create_rectangle? +

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

Can I rate-limit create_rectangle? +

Yes. Add a rate_limit block to the create_rectangle 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_rectangle completely? +

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

create_rectangle is provided by the Figmad MCP server (toro1221/figmad-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.