High Risk →

boolean_operation

boolean_operation

How to control boolean_operation ↓

AI agents invoke boolean_operation to trigger actions in FreeCAD Robust MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

High Risk

In FreeCAD, boolean operations (union, intersection, cut) combine or modify 3D solid bodies. This is a modeling operation that transforms geometry — most likely an Execute or Write action. With no description to confirm behavior, confidence is reduced. Classified as Execute because boolean ops trigger geometry computation and transformation rather than simple data writes.

From the tool's definition Tool name 'boolean_operation' in a FreeCAD 3D modeling context; description is empty and uninformative.

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

PolicyLayer is an MCP gateway — it sits between your AI agents and FreeCAD Robust MCP Server, 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": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

boolean_operation stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

  1. Create a free account and register FreeCAD Robust MCP Server — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
RATE-LIMIT THIS TOOL →

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Go deeper

What does the boolean_operation tool do? +

boolean_operation. It is categorised as a Execute tool in the FreeCAD Robust MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on boolean_operation? +

Register the FreeCAD Robust MCP Server 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 FreeCAD Robust MCP Server. Nothing to install.

What risk level is boolean_operation? +

boolean_operation is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

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 FreeCAD Robust MCP Server MCP server (spkane/freecad-addon-robust-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every FreeCAD Robust MCP Server tool call.

Deterministic rules across all 152 FreeCAD Robust MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Free to start. No card required.

152 FreeCAD Robust MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

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