# set_material_3d

Create and apply a StandardMaterial3D or ShaderMaterial to a mesh

Agent View of the PolicyLayer registry record for `set_material_3d`. HTML page: https://policylayer.com/tools/keeveeg-godot-mcp/set-material-3d

## Facts

- Tool: `set_material_3d`
- Server: Godot (`@keeveeg/godot-mcp`) — https://policylayer.com/tools/keeveeg-godot-mcp.md
- Install: `npx -y @keeveeg/godot-mcp`
- Homepage: https://www.npmjs.com/package/@keeveeg/godot-mcp
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 2 (2 required)
- Recommended policy verdict: Rate-limited

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `path` | string | yes | MeshInstance3D node path |
| `properties` | object | yes | Material properties (albedo_color, metallic, roughness, shader_path, etc.) |

Parameters from the server's own tool schema.

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

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "set_material_3d",
    "arguments": {
      "path": "<path>",
      "properties": {}
    }
  }
}
```

## Why set_material_3d is rated Medium

The tool creates new materials and applies them to existing meshes. This modifies the scene's visual properties but does not delete data, execute arbitrary code, move money, or trigger irreversible operations. Changes can be undone in the editor. The severity is medium rather than low because arbitrary material application across multiple meshes could degrade scene integrity or performance if misused by an agent.

From the tool's own definition: "Tool description states 'Create and apply a StandardMaterial3D or ShaderMaterial to a mesh' — this creates and modifies material properties of 3D objects, which are reversible changes to the scene state."

Risk signals: Accepts file system path (path)

## Use case

AI agents use set_material_3d to create or update resources in Godot, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Godot environment.

## Recommended policy (PolicyLayer)

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

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "set_material_3d": {
      "limits": [
        {
          "counter": "set_material_3d_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Godot (320)

- `clear_editor_log` — Destructive — https://policylayer.com/tools/keeveeg-godot-mcp/clear-editor-log.md
- `clear_editor_selection` — Destructive — https://policylayer.com/tools/keeveeg-godot-mcp/clear-editor-selection.md
- `clear_output` — Destructive — https://policylayer.com/tools/keeveeg-godot-mcp/clear-output.md
- `delete_export_preset` — Destructive — https://policylayer.com/tools/keeveeg-godot-mcp/delete-export-preset.md
- `delete_node` — Destructive — https://policylayer.com/tools/keeveeg-godot-mcp/delete-node.md
- `delete_particles` — Destructive — https://policylayer.com/tools/keeveeg-godot-mcp/delete-particles.md
- `delete_resource` — Destructive — https://policylayer.com/tools/keeveeg-godot-mcp/delete-resource.md
- `delete_save_file` — Destructive — https://policylayer.com/tools/keeveeg-godot-mcp/delete-save-file.md
- `delete_scene` — Destructive — https://policylayer.com/tools/keeveeg-godot-mcp/delete-scene.md
- `delete_script` — Destructive — https://policylayer.com/tools/keeveeg-godot-mcp/delete-script.md
- `delete_shader` — Destructive — https://policylayer.com/tools/keeveeg-godot-mcp/delete-shader.md
- `delete_theme` — Destructive — https://policylayer.com/tools/keeveeg-godot-mcp/delete-theme.md
- `remove_animation` — Destructive — https://policylayer.com/tools/keeveeg-godot-mcp/remove-animation.md
- `remove_audio_bus` — Destructive — https://policylayer.com/tools/keeveeg-godot-mcp/remove-audio-bus.md
- `remove_audio_player` — Destructive — https://policylayer.com/tools/keeveeg-godot-mcp/remove-audio-player.md
- `remove_autoload` — Destructive — https://policylayer.com/tools/keeveeg-godot-mcp/remove-autoload.md
- `remove_autoload_config` — Destructive — https://policylayer.com/tools/keeveeg-godot-mcp/remove-autoload-config.md
- `remove_input_action` — Destructive — https://policylayer.com/tools/keeveeg-godot-mcp/remove-input-action.md
- `remove_navigation_agent` — Destructive — https://policylayer.com/tools/keeveeg-godot-mcp/remove-navigation-agent.md
- `remove_navigation_link` — Destructive — https://policylayer.com/tools/keeveeg-godot-mcp/remove-navigation-link.md
- `remove_navigation_region` — Destructive — https://policylayer.com/tools/keeveeg-godot-mcp/remove-navigation-region.md
- `reset_editor_layout` — Destructive — https://policylayer.com/tools/keeveeg-godot-mcp/reset-editor-layout.md
- `tilemap_clear` — Destructive — https://policylayer.com/tools/keeveeg-godot-mcp/tilemap-clear.md
- `uninstall_addon` — Destructive — https://policylayer.com/tools/keeveeg-godot-mcp/uninstall-addon.md
- `bake_navigation_mesh` — Execute — https://policylayer.com/tools/keeveeg-godot-mcp/bake-navigation-mesh.md
- `capture_frames` — Execute — https://policylayer.com/tools/keeveeg-godot-mcp/capture-frames.md
- `click_button_by_text` — Execute — https://policylayer.com/tools/keeveeg-godot-mcp/click-button-by-text.md
- `continue_execution` — Execute — https://policylayer.com/tools/keeveeg-godot-mcp/continue-execution.md
- `evaluate_expression` — Execute — https://policylayer.com/tools/keeveeg-godot-mcp/evaluate-expression.md
- `execute_editor_script` — Execute — https://policylayer.com/tools/keeveeg-godot-mcp/execute-editor-script.md
- …and 290 more: https://policylayer.com/tools/keeveeg-godot-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=keeveeg-godot-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/keeveeg-godot-mcp