boolean_operation

THE RISK

Medium Risk

Why boolean_operation needs a policy

Boolean operations in design tools modify existing nodes by combining or transforming them, but the operation is reversible (can be undone) and does not permanently delete data. This fits the Write category (creates or modifies data reversibly). Severity is medium because misuse could corrupt a design file's structure, but the operation is confined to the Figma document and can be undone.

From the tool's definition Tool performs boolean operations (union, subtract, intersect, exclude) on design nodes, which modifies the structure and geometry of design elements.

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

POLICY

How to control boolean_operation

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

policy.json

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

boolean_operation 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 Claude Talk to Figma MCP — 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

More Claude Talk to Figma MCP tools

Destructive delete_node Delete a node from Figma Destructive delete_page Delete a page from the current Figma document Execute load_font_async Load a font asynchronously in Figma Write apply_image_transform Adjust image position, scale, and rotation within node. Rotates the IMAGE inside the node, Write apply_variable_to_node Bind a variable to a node property in Figma. Call once per field — for multiple fields, ca Write clone_node Clone an existing node in Figma Write convert_to_frame Convert a group or shape node into a frame in Figma. Preserves position, size, visual prop Write create_component_from_node Convert an existing node (frame, group, etc.) into a reusable component in Figma

All 93 Claude Talk to Figma MCP tools →

Write tools on other servers

M-Team MCP Server download_torrent YouTube MCP Server generate_video_title Android Forensics ADB MCP Server combine_reports 0xarchive web3_signup

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 boolean_operation

What does the boolean_operation tool do? +

Perform a boolean operation (union, subtract, intersect, exclude) on two or more nodes. All nodes must share the same parent. It is categorised as a Write tool in the Claude Talk to Figma MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on boolean_operation? +

Register the Claude Talk to Figma MCP server in PolicyLayer and add a rule for boolean_operation: 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 Claude Talk to Figma MCP. Nothing to install.

What risk level is boolean_operation? +

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

Can I rate-limit boolean_operation? +

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

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

boolean_operation is provided by the Claude Talk to Figma MCP server (arinspunk/claude-talk-to-figma-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Claude Talk to Figma MCP tool call.

Start from Claude Talk to Figma MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →