Unity Prefab Workflow

What it does

When your agent uses it

• The user asks to create
• Instantiate a prefab
• Apply/revert instance overrides
• Unpack a prefab

Example prompts

• “/unity-prefab-workflow”

Requirements

• Pre-approved tools (allowed-tools): Bash(unity-cli:*), Read, Grep, Glob

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

1. 1Run unity-cli system ping for the target project before mutations (use --project-path with multiple Editors). If it fails, follow…
2. 2open_prefab to enter edit mode (or create_prefab from a scene object).
3. 3Apply edits via add_component, modify_component, or set_component_field.
4. 4save_prefab to persist changes back to the asset.
5. 5exit_prefab_mode to return to scene authoring.

What it can do on your machine

Read from SKILL.md and the folder at commit 7f45d7a. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves these tools, so the agent can use them without asking each time:

  • Bash(unity-cli:*)
  • Read
  • Grep
  • Glob

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  No scripts in the folder and no shell commands in SKILL.md (its code samples are bash).

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md.

  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

Unity Prefab Workflow loads about 1.5k tokens when it runs, and up to ~1.9k if it reads all its reference files. Until then it costs about 92 tokens; SKILL.md has 566 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~92

When it runs · the whole SKILL.md, loaded when a task matches

~1.5k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~1.9k

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

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.

SKILL.md

The full file from akiojin/unity-cli at commit 7f45d7a, republished under its MIT licence (© akiojin). 566 words, ~1,525 tokens.

name

unity-prefab-workflow

description

Manage Unity prefab assets with unity-cli. Use when the user asks to create or instantiate a prefab or Variant, list or apply/revert instance overrides, unpack a prefab, open prefab edit mode, save changes, or update prefab asset properties. Do not use for general scene object editing; use `unity-gameobject-edit` or `unity-scene-create` instead.

allowed-tools

Bash(unity-cli:*), Read, Grep, Glob

metadata.author

akiojin

metadata.version

0.4.0

metadata.category

prefabs

metadata.triggers

prefab, instantiate, edit-mode, asset

metadata.siblings

unity-gameobject-edit, unity-scene-create, unity-asset-management

unity-cli raw create_prefab --json '{"gameObjectPath":"/Player","prefabPath":"Assets/Prefabs/Player.prefab"}'
unity-cli raw open_prefab --json '{"prefabPath":"Assets/Prefabs/Player.prefab"}'
unity-cli raw save_prefab --json '{}'
unity-cli raw exit_prefab_mode --json '{}'
unity-cli raw instantiate_prefab --json '{"prefabPath":"Assets/Prefabs/Player.prefab","position":{"x":0,"y":0,"z":0}}'

unity-cli raw instantiate_prefab --json '{"prefabPath":"Assets/Prefabs/Player.prefab","name":"ArmoredPlayer"}'
unity-cli raw create_prefab --json '{"gameObjectPath":"/ArmoredPlayer","prefabPath":"Assets/Prefabs/ArmoredPlayer.prefab"}'
unity-cli raw get_prefab_overrides --json '{"gameObjectPath":"/ArmoredPlayer"}'
unity-cli raw manage_prefab_overrides --json '{"gameObjectPath":"/ArmoredPlayer","action":"apply","scope":"all","assetPath":"Assets/Prefabs/ArmoredPlayer.prefab"}'
unity-cli raw manage_prefab_overrides --json '{"gameObjectPath":"/ArmoredPlayer","action":"revert","scope":"all"}'
unity-cli raw unpack_prefab --json '{"gameObjectPath":"/ArmoredPlayer","mode":"Completely"}'

© akiojin, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 2 other files (references) in .claude-plugin/plugins/unity-cli/skills/unity-prefab-workflow of akiojin/unity-cli.

• SKILL.md
• references/prefab-edit-mode.md
• references/runtime-checklist.md

Open the folder on GitHubat commit 7f45d7a