figma_boolean_operations

THE RISK

Medium Risk

Why figma_boolean_operations needs a policy

Boolean operations (union, subtract, intersect, exclude) are reversible modifications to design elements within Figma. While they alter the structure of vector nodes, they are not permanent deletions and can be undone or reverted in Figma's version history. This places the tool in the Write category rather than Destructive.

From the tool's definition Perform boolean operations (union, subtract, intersect, exclude) on vector nodes — these operations modify vector shapes by combining or subtracting them, creating new geometry that overwrites the original nodes.

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

POLICY

How to control figma_boolean_operations

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

policy.json

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

figma_boolean_operations 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.

Create a free account and register Figma Mcp Write — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about figma_boolean_operations

What does the figma_boolean_operations tool do? +

Perform boolean operations (union, subtract, intersect, exclude) on vector nodes. It is categorised as a Write tool in the Figma Mcp Write MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on figma_boolean_operations? +

Register the Figma Mcp Write MCP server in PolicyLayer and add a rule for figma_boolean_operations: 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 Write. Nothing to install.

What risk level is figma_boolean_operations? +

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

Can I rate-limit figma_boolean_operations? +

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

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

figma_boolean_operations is provided by the Figma Mcp Write MCP server (oo/figma-mcp-write-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Figma Mcp Write tool call.

Start from Figma Mcp Write, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →