skills.rest
Fermisloth
FermislothCOMMUNITY
Explore all skills by this author →
GitHub

assets-prefab-open

Opens Unity prefab edit mode for a specified GameObject via the unity-mcp-cli tool.

1|Updated Apr 1, 2026
Search Tags:#game development#unity#prefab#gameobject#editor automation#unity-mcp-cli
One-click install
npx skills add https://github.com/Fermisloth/Project-Aegis-Adaptive-Outbreak-Containment --skill assets-prefab-open-fermisloth
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: assets-prefab-open
Source: https://github.com/Fermisloth/Project-Aegis-Adaptive-Outbreak-Containment/tree/main/.agent/skills/assets-prefab-open
Command: npx skills add https://github.com/Fermisloth/Project-Aegis-Adaptive-Outbreak-Containment --skill assets-prefab-open-fermisloth

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires unity-mcp-cli.

What problem does it solve? Editing a Unity prefab so changes propagate to all instances requires entering prefab edit mode, which is tedious to do manually through the editor UI during automated or AI-assisted workflows. ## Core Features & Use Cases - Prefab Edit Mode Entry: Opens prefab editing mode for a specific GameObject referenced by instanceID, hierarchy path, name, asset path, or asset GUID. - Project-Wide Modifications: Changes made in edit mode apply to all instances of the prefab across the project. - Use Case: While automating scene updates, you need to adjust a shared enemy character prefab. Invoke this tool with the prefab instance reference, make your modifications, then call 'assets-prefab-close' to exit edit mode. ## Quick Start Ask the AI to open prefab edit mode for a specific GameObject by providing its instanceID or hierarchy path through the unity-mcp-cli assets-prefab-open tool.

Frequently Asked Questions about assets-prefab-open

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I open prefab edit mode in Unity from the command line?▼

Run unity-mcp-cli run-tool assets-prefab-open with a JSON input containing a gameObjectRef. The reference can use an instanceID, hierarchy path, name, asset path, or asset GUID to locate the prefab instance.

How do I reference a GameObject when opening a Unity prefab?▼

Provide a gameObjectRef object with instanceID as the preferred identifier. Alternatives include the hierarchy path (e.g. 'character/hand/finger'), the GameObject name, or the asset path starting with 'Assets/' plus its GUID.

Do changes made in Unity prefab edit mode apply to all instances?▼

Yes. Modifications made while in prefab edit mode are applied to every instance of that prefab across the entire project, which is the primary purpose of entering this mode.

What should I do after finishing prefab edits in Unity?▼

Call the assets-prefab-close tool to exit prefab editing mode. Leaving edit mode open can block subsequent scene operations, so always pair an open call with a close call.

Why is unity-mcp-cli not found when running the tool?▼

The CLI is not installed or not on your PATH. Install it globally with npm install -g unity-mcp-cli, or invoke it through npx unity-mcp-cli instead.

Related Skills

Explore More Software Engineering Skills→
AdielMagAdielMag

unity-tool-list

Lists Unity-MCP tools registered in the connected Unity Editor with optional regex filtering.

Community
Basic
igot-aiigot-ai

assets-prefab-close

Close the currently opened Unity prefab via HTTP API with a save parameter.

Official
Basic
AdielMagAdielMag

assets-prefab-open

Opens the Unity prefab edit stage for a prefab instance or prefab asset GameObject.

Community
Basic
akiojinakiojin
83

unity-prefab-workflow

Create, edit, save, and instantiate Unity prefab assets via unity-cli.

Community
Intermediate