Compute the Boolean intersection of two or more closed breps.
AI agents invoke boolean_intersection to trigger actions in GOLEM-3DMCP-Rhino-. 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.
Boolean intersection is a geometric computation that modifies the scene by consuming input objects and producing a new intersected solid. This is a non-trivial operation with external side effects in Rhino (objects may be deleted/replaced), classifying it as Execute.
From the tool's definition 'Compute the Boolean intersection of two or more closed breps' — performs a geometric boolean operation that transforms/consumes input geometry and produces new output geometry in Rhino
Documented attack patterns abuse exactly the kind of access boolean_intersection gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and GOLEM-3DMCP-Rhino-, and nothing reaches the server without passing your rules. This is the rule we recommend for boolean_intersection:
{
"version": "1",
"default": "deny",
"tools": {
"boolean_intersection": {
"limits": [
{
"counter": "boolean_intersection_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}boolean_intersection 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.
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Compute the Boolean intersection of two or more closed breps. It is categorised as a Execute tool in the GOLEM-3DMCP-Rhino- MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the GOLEM-3DMCP-Rhino- MCP server in PolicyLayer and add a rule for boolean_intersection: 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 GOLEM-3DMCP-Rhino-. Nothing to install.
boolean_intersection is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the boolean_intersection 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.
Set action: deny in the PolicyLayer policy for boolean_intersection. 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.
boolean_intersection is provided by the GOLEM-3DMCP-Rhino- MCP server (thekinghippopotamus/golem-3dmcp-rhino-). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from GOLEM-3DMCP-Rhino-, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
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