# rhino_material_assign Assign an existing material to one or more objects. Agent View of the PolicyLayer registry record for `rhino_material_assign`. HTML page: https://policylayer.com/tools/easehee-rhino-mcp/rhino-material-assign ## Facts - Tool: `rhino_material_assign` - 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_material_assign", "arguments": {} } } ``` ## Why rhino_material_assign is rated Medium This tool modifies the properties of Rhino objects by assigning materials to them. This is a Write operation because it creates or modifies data (object material assignments) in a reversible manner—materials can be unassigned or changed. It does not delete data (Destructive), execute arbitrary code (Execute), involve financial transactions (Financial), or merely read data (Read). From the tool's own definition: "Tool name 'rhino_material_assign' and description 'Assign an existing material to one or more objects' indicate modification of object properties in Rhino. Assignment of materials is a reversible change to object attributes." ## Use case AI agents use rhino_material_assign 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_material_assign": { "limits": [ { "counter": "rhino_material_assign_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