rhino_layer_create

Create a layer with optional colour and visibility.

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-layer-create.md

WHAT IT DOES

What rhino_layer_create does on Rhino

AI agents use rhino_layer_create 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_layer_create is rated Medium

Creating a layer is a reversible modification operation that adds data to the Rhino model. It does not execute arbitrary code, delete data irreversibly, or create financial obligations. The medium severity reflects that layer creation could affect model organization and rendering, but the impact is limited in scope and the operation is non-destructive.

From the tool's definition Tool description states 'Create a layer', which is a write operation that creates new data structures in Rhino. The tool modifies the layer hierarchy and properties (colour, visibility) in the 3D model.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs rhino_layer_create 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_layer_create, this is the rule to start with:

rhino_layer_create Rate-limited

rhino_layer_create 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_layer_create": {
      "limits": [
        {
          "counter": "rhino_layer_create_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_layer_create call is checked against it from then on.

FAQ

Questions about rhino_layer_create

What does the rhino_layer_create tool do? +

Create a layer with optional colour and visibility. 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_layer_create? +

Register the Rhino MCP server in PolicyLayer and add a rule for rhino_layer_create: 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_layer_create? +

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

Can I rate-limit rhino_layer_create? +

Yes. Add a rate_limit block to the rhino_layer_create 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_layer_create completely? +

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

rhino_layer_create 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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