# rhino_group

Group objects together under a (named) group.

Agent View of the PolicyLayer registry record for `rhino_group`. HTML page: https://policylayer.com/tools/easehee-rhino-mcp/rhino-group

## Facts

- Tool: `rhino_group`
- Server: Rhino (`easehee/rhino-mcp`) — https://policylayer.com/tools/easehee-rhino-mcp.md
- Homepage: https://github.com/EaseHee/rhino-mcp
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "rhino_group",
    "arguments": {}
  }
}
```

## Why rhino_group is rated Medium

Grouping objects is a reversible write operation that organizes/structures existing geometry without deleting or permanently altering underlying data. It creates metadata (a group) that can be ungrouped. While it modifies the Rhino scene, the operation is not destructive (objects remain intact), not code execution, and not financial.

From the tool's own definition: "Tool description states 'Group objects together under a (named) group.' This creates a new organizational structure in the 3D modeling environment, modifying the scene state."

## Use case

AI agents use rhino_group 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.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Rhino:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "rhino_group": {
      "limits": [
        {
          "counter": "rhino_group_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Rhino (244)

- `gh_delete_component` — Destructive — https://policylayer.com/tools/easehee-rhino-mcp/gh-delete-component.md
- `gh_reset` — Destructive — https://policylayer.com/tools/easehee-rhino-mcp/gh-reset.md
- `rhino_bim_pset_delete` — Destructive — https://policylayer.com/tools/easehee-rhino-mcp/rhino-bim-pset-delete.md
- `rhino_layer_delete` — Destructive — https://policylayer.com/tools/easehee-rhino-mcp/rhino-layer-delete.md
- `rhino_object_delete` — Destructive — https://policylayer.com/tools/easehee-rhino-mcp/rhino-object-delete.md
- `rhino_render_queue_cancel` — Destructive — https://policylayer.com/tools/easehee-rhino-mcp/rhino-render-queue-cancel.md
- `gh_new_canvas` — Execute — https://policylayer.com/tools/easehee-rhino-mcp/gh-new-canvas.md
- `gh_run` — Execute — https://policylayer.com/tools/easehee-rhino-mcp/gh-run.md
- `gh_run_template` — Execute — https://policylayer.com/tools/easehee-rhino-mcp/gh-run-template.md
- `rhino_annotation_scale_bar` — Execute — https://policylayer.com/tools/easehee-rhino-mcp/rhino-annotation-scale-bar.md
- `rhino_attractor_displace_points` — Execute — https://policylayer.com/tools/easehee-rhino-mcp/rhino-attractor-displace-points.md
- `rhino_axis_ribs` — Execute — https://policylayer.com/tools/easehee-rhino-mcp/rhino-axis-ribs.md
- `rhino_batch_call` — Execute — https://policylayer.com/tools/easehee-rhino-mcp/rhino-batch-call.md
- `rhino_boolean_intersection` — Execute — https://policylayer.com/tools/easehee-rhino-mcp/rhino-boolean-intersection.md
- `rhino_boolean_union` — Execute — https://policylayer.com/tools/easehee-rhino-mcp/rhino-boolean-union.md
- `rhino_bridge_select_instance` — Execute — https://policylayer.com/tools/easehee-rhino-mcp/rhino-bridge-select-instance.md
- `rhino_display_mode_set` — Execute — https://policylayer.com/tools/easehee-rhino-mcp/rhino-display-mode-set.md
- `rhino_drawing_section_cut` — Execute — https://policylayer.com/tools/easehee-rhino-mcp/rhino-drawing-section-cut.md
- `rhino_execute_csharp` — Execute — https://policylayer.com/tools/easehee-rhino-mcp/rhino-execute-csharp.md
- `rhino_execute_python` — Execute — https://policylayer.com/tools/easehee-rhino-mcp/rhino-execute-python.md
- `rhino_mesh_boolean_union` — Execute — https://policylayer.com/tools/easehee-rhino-mcp/rhino-mesh-boolean-union.md
- `rhino_network_surface` — Execute — https://policylayer.com/tools/easehee-rhino-mcp/rhino-network-surface.md
- `rhino_object_select` — Execute — https://policylayer.com/tools/easehee-rhino-mcp/rhino-object-select.md
- `rhino_render_queue_submit` — Execute — https://policylayer.com/tools/easehee-rhino-mcp/rhino-render-queue-submit.md
- `rhino_render_to_file` — Execute — https://policylayer.com/tools/easehee-rhino-mcp/rhino-render-to-file.md
- `rhino_section` — Execute — https://policylayer.com/tools/easehee-rhino-mcp/rhino-section.md
- `rhino_section_at_axis` — Execute — https://policylayer.com/tools/easehee-rhino-mcp/rhino-section-at-axis.md
- `rhino_shell` — Execute — https://policylayer.com/tools/easehee-rhino-mcp/rhino-shell.md
- `rhino_skin_from_sections` — Execute — https://policylayer.com/tools/easehee-rhino-mcp/rhino-skin-from-sections.md
- `rhino_taper` — Execute — https://policylayer.com/tools/easehee-rhino-mcp/rhino-taper.md
- …and 214 more: https://policylayer.com/tools/easehee-rhino-mcp.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=easehee-rhino-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/easehee-rhino-mcp