# material_create_pbr

A write tool on the Blender Copilot MCP Server MCP server.

Agent View of the PolicyLayer registry record for `material_create_pbr`. HTML page: https://policylayer.com/tools/dwgx-blender-copilot/material-create-pbr

## Facts

- Tool: `material_create_pbr`
- Server: Blender Copilot MCP Server (`dwgx/blender-copilot`) — https://policylayer.com/tools/dwgx-blender-copilot.md
- Homepage: https://github.com/dwgx/blender-copilot
- 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": "material_create_pbr",
    "arguments": {}
  }
}
```

## Why material_create_pbr is rated Medium

This tool creates new PBR material assets, which modifies the Blender project by adding reversible data structures. It is not destructive (materials can be deleted), not financial, and not execute-class (no arbitrary code execution implied). The empty description reduces confidence slightly, but the naming convention and server context clearly indicate a Write operation that adds materials to a scene.

From the tool's own definition: "Tool name 'material_create_pbr' indicates creation of physically-based rendering materials in Blender. The '_create_' prefix in the name strongly suggests data generation/modification."

## Use case

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

## Recommended policy (PolicyLayer)

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

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

## Other tools on Blender Copilot MCP Server (306)

- `anim_clear_all` — Destructive — https://policylayer.com/tools/dwgx-blender-copilot/anim-clear-all.md
- `anim_delete_keyframe` — Destructive — https://policylayer.com/tools/dwgx-blender-copilot/anim-delete-keyframe.md
- `apply_modifier` — Destructive — https://policylayer.com/tools/dwgx-blender-copilot/apply-modifier.md
- `batch_delete` — Destructive — https://policylayer.com/tools/dwgx-blender-copilot/batch-delete.md
- `blender_new_file` — Destructive — https://policylayer.com/tools/dwgx-blender-copilot/blender-new-file.md
- `clear_animation` — Destructive — https://policylayer.com/tools/dwgx-blender-copilot/clear-animation.md
- `delete_object` — Destructive — https://policylayer.com/tools/dwgx-blender-copilot/delete-object.md
- `modifier_remove` — Destructive — https://policylayer.com/tools/dwgx-blender-copilot/modifier-remove.md
- `optimize_scene` — Destructive — https://policylayer.com/tools/dwgx-blender-copilot/optimize-scene.md
- `physics_remove` — Destructive — https://policylayer.com/tools/dwgx-blender-copilot/physics-remove.md
- `remove_constraint` — Destructive — https://policylayer.com/tools/dwgx-blender-copilot/remove-constraint.md
- `remove_modifier` — Destructive — https://policylayer.com/tools/dwgx-blender-copilot/remove-modifier.md
- `scene_cleanup` — Destructive — https://policylayer.com/tools/dwgx-blender-copilot/scene-cleanup.md
- `uv_remove_layer` — Destructive — https://policylayer.com/tools/dwgx-blender-copilot/uv-remove-layer.md
- `bake_ao` — Execute — https://policylayer.com/tools/dwgx-blender-copilot/bake-ao.md
- `bake_physics` — Execute — https://policylayer.com/tools/dwgx-blender-copilot/bake-physics.md
- `bake_textures` — Execute — https://policylayer.com/tools/dwgx-blender-copilot/bake-textures.md
- `blender_launch` — Execute — https://policylayer.com/tools/dwgx-blender-copilot/blender-launch.md
- `blender_open_file` — Execute — https://policylayer.com/tools/dwgx-blender-copilot/blender-open-file.md
- `bmesh_operation` — Execute — https://policylayer.com/tools/dwgx-blender-copilot/bmesh-operation.md
- `build_material_nodes` — Execute — https://policylayer.com/tools/dwgx-blender-copilot/build-material-nodes.md
- `build_scene_from_json` — Execute — https://policylayer.com/tools/dwgx-blender-copilot/build-scene-from-json.md
- `cloth_sim_model` — Execute — https://policylayer.com/tools/dwgx-blender-copilot/cloth-sim-model.md
- `execute_code` — Execute — https://policylayer.com/tools/dwgx-blender-copilot/execute-code.md
- `execute_script_headless` — Execute — https://policylayer.com/tools/dwgx-blender-copilot/execute-script-headless.md
- `execute_script_on_file` — Execute — https://policylayer.com/tools/dwgx-blender-copilot/execute-script-on-file.md
- `ft_sculpt_shape_key` — Execute — https://policylayer.com/tools/dwgx-blender-copilot/ft-sculpt-shape-key.md
- `ft_setup_eye_tracking_full` — Execute — https://policylayer.com/tools/dwgx-blender-copilot/ft-setup-eye-tracking-full.md
- `generate_hunyuan3d_model` — Execute — https://policylayer.com/tools/dwgx-blender-copilot/generate-hunyuan3d-model.md
- `generate_hyper3d_model_via_images` — Execute — https://policylayer.com/tools/dwgx-blender-copilot/generate-hyper3d-model-via-images.md
- …and 276 more: https://policylayer.com/tools/dwgx-blender-copilot.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=dwgx-blender-copilot · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/dwgx-blender-copilot