rhino_curve_split

Split a curve at the given parameters; original is preserved.

SERVERRhino SOURCEeasehee/rhino-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/easehee-rhino-mcp/rhino-curve-split.md

WHAT IT DOES

What rhino_curve_split does on Rhino

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

RISK

Why rhino_curve_split is rated Medium

The tool modifies the Rhino geometry by creating new curves derived from splitting an existing curve. While the original is preserved (making it reversible in principle—the split curves could be deleted or undone), this is a data-creating operation that alters the state of the CAD model.

From the tool's definition The tool description states 'Split a curve at the given parameters; original is preserved.' This creates new curve objects (the split segments) while maintaining the original, representing reversible data modification in the CAD model.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs rhino_curve_split safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Rhino, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For rhino_curve_split, this is the rule to start with:

rhino_curve_split Rate-limited

rhino_curve_split 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": {
    "rhino_curve_split": {
      "limits": [
        {
          "counter": "rhino_curve_split_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Rhino, apply this rule, and every rhino_curve_split call is checked against it from then on.

FAQ

Questions about rhino_curve_split

What does the rhino_curve_split tool do? +

Split a curve at the given parameters; original is preserved. It is categorised as a Write tool in the Rhino MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on rhino_curve_split? +

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

What risk level is rhino_curve_split? +

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

Can I rate-limit rhino_curve_split? +

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

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

rhino_curve_split is provided by the Rhino MCP server (easehee/rhino-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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