# rhino_nurbs_curve Add a NURBS curve from a control polygon. Agent View of the PolicyLayer registry record for `rhino_nurbs_curve`. HTML page: https://policylayer.com/tools/easehee-rhino-mcp/rhino-nurbs-curve ## Facts - Tool: `rhino_nurbs_curve` - 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_nurbs_curve", "arguments": {} } } ``` ## Why rhino_nurbs_curve is rated Medium This tool creates new geometric objects (NURBS curves) in the Rhino 3D environment, which constitutes data creation. While the action is reversible (unlike Destructive), it modifies the state of the Rhino document. The severity is medium because misuse by an agent could create unwanted geometry cluttering the model, but the impact is limited in scope compared to destructive operations. From the tool's own definition: "Tool description states 'Add a NURBS curve' - the verb 'Add' indicates creation of new geometry data in Rhino. This is a reversible modification operation (curves can be deleted/modified later), not a destructive or read-only operation." ## Use case AI agents use rhino_nurbs_curve 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_nurbs_curve": { "limits": [ { "counter": "rhino_nurbs_curve_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