Install the "assets-prefab-close" agent skill from https://github.com/IvanMurzak/Unity-MCP/tree/main/Unity-MCP-Plugin/.claude/skills/assets-prefab-close into .claude/skills/assets-prefab-close/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "assets-prefab-close", then confirm the skill loads.
Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
skills CLI
$ npx skills add IvanMurzak/Unity-MCP --skill assets-prefab-close -a codex
Project install goes to .agents/skills/; add -g for ~/.codex/skills/.
Install the "assets-prefab-close" agent skill from https://github.com/IvanMurzak/Unity-MCP/tree/main/Unity-MCP-Plugin/.claude/skills/assets-prefab-close into .agents/skills/assets-prefab-close/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "assets-prefab-close", then confirm the skill loads.
Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
skills CLI
$ npx skills add IvanMurzak/Unity-MCP --skill assets-prefab-close -a cursor
Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.
Install the "assets-prefab-close" agent skill from https://github.com/IvanMurzak/Unity-MCP/tree/main/Unity-MCP-Plugin/.claude/skills/assets-prefab-close into .cursor/skills/assets-prefab-close/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "assets-prefab-close", then confirm the skill loads.
Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
skills CLI
$ npx skills add IvanMurzak/Unity-MCP --skill assets-prefab-close -a gemini-cli
Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.
Install the "assets-prefab-close" agent skill from https://github.com/IvanMurzak/Unity-MCP/tree/main/Unity-MCP-Plugin/.claude/skills/assets-prefab-close into .gemini/skills/assets-prefab-close/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "assets-prefab-close", then confirm the skill loads.
Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
skills CLI
$ npx skills add IvanMurzak/Unity-MCP --skill assets-prefab-close -a github-copilot
Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.
Install the "assets-prefab-close" agent skill from https://github.com/IvanMurzak/Unity-MCP/tree/main/Unity-MCP-Plugin/.claude/skills/assets-prefab-close into .github/skills/assets-prefab-close/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "assets-prefab-close", then confirm the skill loads.
GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
skills CLI
$ npx skills add IvanMurzak/Unity-MCP --skill assets-prefab-close -a opencode
OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
Install the "assets-prefab-close" agent skill from https://github.com/IvanMurzak/Unity-MCP/tree/main/Unity-MCP-Plugin/.claude/skills/assets-prefab-close into .opencode/skills/assets-prefab-close/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "assets-prefab-close", then confirm the skill loads.
OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
Skill name
assets-prefab-close
GitHub stars
4.4k
Token cost
~787 tokens
SKILL.md length
169 words
Files
1
Skills in repo
80
Repo updated
First seen
Licence
Apache-2.0
At a glance
Close the currently opened prefab edit stage. An agent skill from IvanMurzak/Unity-MCP.
Game Development work in your project
SKILL.md covers Inputs, Behavior, How to Call and Input, plus 1 more section
Calls npm and npx
What it does
Assets Prefab Close is an agent skill from IvanMurzak/Unity-MCP. Close the currently opened prefab edit stage. Optionally saves changes back to the prefab asset before closing. Pair with 'assets-prefab-open' to enter the edit mode first.
Its SKILL.md is about 790 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Game Development. It works with Model Context Protocol. The repository describes itself as: AI Skills, MCP Tools, and CLI for Unity Engine. Full AI develop and test loop. Use cli for quick setup. Efficient token usage, advanced tools. Any C method may be turned into a… The licence is Apache-2.0.
When your agent uses it
Game Development work in your project
Example prompts
“assets-prefab-open”
“/assets-prefab-close”
Requirements
Node.js
What it can do on your machine
Read from SKILL.md and the folder at commit 84319d7. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
npm
npx
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use npm and npx, which can reach the network depending on how they are called.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Assets Prefab Close loads about 787 tokens when it runs. Until then it costs about 48 tokens; SKILL.md has 169 words of instructions outside code blocks.
Always· name and description, kept in context so the agent knows when to use it
~48
When it runs· the whole SKILL.md, loaded when a task matches
~787
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
Download SKILL.mdSave it as .claude/skills/assets-prefab-close/SKILL.md (or your agent's skills folder).
name
assets-prefab-close
description
Close the currently opened prefab edit stage. Optionally saves changes back to the prefab asset before closing. Pair with 'assets-prefab-open' to enter the edit mode first.
Assets / Prefab / Close
Close currently opened prefab. Use it when you are in prefab editing mode in Unity Editor. Use 'assets-prefab-open' tool to open a prefab first.
Inputs
save (default true) — when true, calls PrefabUtility.SaveAsPrefabAsset before exiting the stage; when false, the save is skipped. The prefab stage's dirtiness is always cleared at the end, so any unsaved changes are discarded when save is false.
Behavior
Throws when no prefab stage is currently open. Returns an AssetObjectRef for the closed prefab asset.
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.
{
"type": "object",
"properties": {
"result": {
"$ref": "#/$defs/AIGD.AssetObjectRef",
"description": "Reference to UnityEngine.Object asset instance. It could be Material, ScriptableObject, Prefab, and any other Asset. Anything located in the Assets and Packages folders."
}
},
"$defs": {
"System.Type": {
"type": "string"
},
"AIGD.AssetObjectRef": {
"type": "object",
"properties": {
"instanceID": {
"type": "integer",
"description": "instanceID of the UnityEngine.Object. If this is '0' and 'assetPath' and 'assetGuid' is not provided, empty or null, then it will be used as 'null'."
},
"assetType": {
"$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": "Reference to UnityEngine.Object asset instance. It could be Material, ScriptableObject, Prefab, and any other Asset. Anything located in the Assets and Packages folders."
}
},
"required": [
"result"
]
}
Assets Prefab Close next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
Assets Prefab Close compared with similar skills
Skill
Stars
Used in
Tokens
Auto-check
Licence
Repo updated
Assets Prefab Close this skillIvanMurzak/Unity-MCP
A skill your agent uses when an agent needs to inspect or control a real Unity Editor through Locus, especially when Unity MCP is unavailable, named-pipe discovery is needed, C must be executed, or…
Walks an Unreal Engine MCP agent through building materials, Niagara particle systems, Chaos destruction, and curve assets with inspect-then-edit steps.
Close the currently opened prefab edit stage. An agent skill from IvanMurzak/Unity-MCP. Assets Prefab Close is an agent skill from IvanMurzak/Unity-MCP. Close the currently opened prefab edit stage.
When should I use Assets Prefab Close?
Assets Prefab Close fits situations like: game Development work in your project.
How do I install Assets Prefab Close in Claude Code?
Run `npx skills add IvanMurzak/Unity-MCP --skill assets-prefab-close -a claude-code`. Or copy the skill folder (Unity-MCP-Plugin/.claude/skills/assets-prefab-close in IvanMurzak/Unity-MCP) into .claude/skills/assets-prefab-close in your project. Claude Code loads it when a task matches its description.
How do I install Assets Prefab Close in Codex?
Run `npx skills add IvanMurzak/Unity-MCP --skill assets-prefab-close -a codex`. Or copy the skill folder (Unity-MCP-Plugin/.claude/skills/assets-prefab-close in IvanMurzak/Unity-MCP) into .agents/skills/assets-prefab-close in your project. Codex loads it when a task matches its description.
Can I use Assets Prefab Close in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add IvanMurzak/Unity-MCP --skill assets-prefab-close -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/assets-prefab-close, .gemini/skills/assets-prefab-close, .github/skills/assets-prefab-close and .opencode/skills/assets-prefab-close in your project.
What does Assets Prefab Close need to run?
Going by SKILL.md and its folder, Assets Prefab Close needs the command-line tools its instructions call (npm and npx). Our summary lists: Node.js.
Does Assets Prefab Close access the network?
SKILL.md contains no URLs. Its commands use npm and npx, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Assets Prefab Close safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Assets Prefab Close use?
Assets Prefab Close is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Assets Prefab Close use?
About 787 tokens (SKILL.md is roughly 3.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Assets Prefab Close?
Skills that share tags, products or a category with Assets Prefab Close: Sprite Gen (aldegad/sprite-gen, 2.7k stars), Blockbench Plugins (jasonjgardner/blockbench-mcp-plugin, 500 stars), Unreal Blueprint Authoring (flopperam/unreal-engine-mcp, 1.1k stars) and Locus Unity Bridge (Misaka-Mikoto-Tech/agent-skills, 278 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Assets Prefab Close?
IvanMurzak (a GitHub user) maintains it in IvanMurzak/Unity-MCP, which has 4,412 GitHub stars. The repository holds 80 skills in this directory. The repository was last updated on October 10, 2026.
Source: IvanMurzak/Unity-MCP on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.
