juliangrechenriquez/worldofspirits/assets-prefab-open

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Open the prefab edit stage for a prefab instance or prefab asset GameObject. Modifications inside the edit stage propagate to all instances. Pair with 'assets-prefab-close' to exit the stage when done.

Install

npx vskill@latest install juliangrechenriquez/worldofspirits/assets-prefab-open

SKILL.md

The same SKILL.md was published earlier as majiayu000/claude-skill-registry-data/assets-prefab-open.

Assets / Prefab / Open

Open prefab edit mode for a specific GameObject. In the Edit mode you can modify the prefab. The modification will be applied to all instances of the prefab across the project. Note: Please use 'assets-prefab-close' tool later to exit prefab editing mode.

Inputs

  • gameObjectRef — reference to a scene prefab instance OR a prefab asset GameObject. The tool resolves the prefab asset path via PrefabUtility.GetPrefabAssetPathOfNearestInstanceRoot and opens the appropriate prefab stage.

Behavior

Asset-side GameObjects open via the simple OpenPrefab(path) overload. Scene-instance GameObjects open via OpenPrefab(path, gameObject) so the editor remembers which instance prompted the edit. Editor windows are repainted before returning. Throws when the GameObject cannot be resolved or the stage fails to open.

How to Call

bash
unity-mcp-cli run-tool assets-prefab-open --input '{
  "gameObjectRef": "string_value"
}'
For complex input (multi-line strings, code), save the JSON to a file and use:
```bash
unity-mcp-cli run-tool assets-prefab-open --input-file args.json
```
Or pipe via stdin (recommended):
```bash
unity-mcp-cli run-tool assets-prefab-open --input-file - <<'EOF'
{"param": "value"}
EOF
```
Troubleshooting

If unity-mcp-cli is not found, either install it globally (npm install -g unity-mcp-cli) or use npx unity-mcp-cli instead. Read the /unity-initial-setup skill for detailed installation instructions.

Input

NameTypeRequiredDescription
gameObjectRefanyYesGameObject that represents prefab instance of an original prefab GameObject.
Input JSON Schema
json
{
  "type": "object",
  "properties": {
    "gameObjectRef": {
      "$ref": "#/$defs/AIGD.GameObjectRef"
    }
  },
  "$defs": {
    "System.Type": {
      "type": "string"
    },
    "AIGD.GameObjectRef": {
      "type": "object",
      "properties": {
        "instanceID": {
          "type": "integer",
          "description": "instanceID of the UnityEngine.Object. If it is '0' and 'path', 'name', 'assetPath' and 'assetGuid' is not provided, empty or null, then it will be used as 'null'. Priority: 1 (Recommended)"
        },
        "path": {
          "type": "string",
          "description": "Path of a GameObject in the hierarchy Sample 'character/hand/finger/particle'. Priority: 2."
        },
        "name": {
          "type": "string",
          "description": "Name of a GameObject in hierarchy. Priority: 3."
        },
        "assetType": {
          "$ref": "#/$defs/System.Type",
          "description": "Type of the asset."
        },
        "assetPath": {
          "type": "string",
          "description": "Path to the asset within the project. Starts with 'Assets/'"
        },
        "assetGuid": {
          "type": "string",
          "description": "Unique identifier for the asset."
        }
      },
      "required": [
        "instanceID"
      ],
      "description": "Find GameObject in opened Prefab or in the active Scene."
    }
  },
  "required": [
    "gameObjectRef"
  ]
}

Output

This tool does not return structured output.

Security

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  • Model reviewPassed

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