gh_template_list

List bundled Grasshopper templates with their parameter contracts.

SERVERRhino SOURCEeasehee/rhino-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/easehee-rhino-mcp/gh-template-list.md

WHAT IT DOES

What gh_template_list does on Rhino

AI agents call gh_template_list to retrieve information from Rhino without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why gh_template_list is rated Low

This tool performs a read-only operation that lists available templates and their specifications. It has no side effects, does not execute code, does not modify data, and does not involve financial operations. The operation is informational only, making it a straightforward Read category with low severity.

From the tool's definition Tool name 'gh_template_list' and description 'List bundled Grasshopper templates with their parameter contracts' indicate a query operation that retrieves and displays template metadata without modifying any data.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

gh_template_list Allowed

gh_template_list is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "gh_template_list": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about gh_template_list

What does the gh_template_list tool do? +

List bundled Grasshopper templates with their parameter contracts. It is categorised as a Read tool in the Rhino MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on gh_template_list? +

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

gh_template_list is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit gh_template_list? +

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

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

gh_template_list 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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