Unity UI Toolkit Build

What it does

When your agent uses it

• The user asks to author UXML and USS
• Configure PanelSettings and UIDocument
• Bind C callbacks
• Verify the screen in Play Mode

Example prompts

• “/unity-ui-toolkit-build”

Requirements

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

Workflow steps

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

1. 1Read the runtime checklist, pin the project/port, and confirm system ping.
2. 2Delegate scene creation/loading to unity-scene-create. For an acceptance
3. 3Follow the construction recipe. Delegate short Editor evaluations to
4. 4Delegate the MonoBehaviour binding to unity-csharp-edit, using CLI C# write
5. 5Call refresh_assets, wait for compilation/domain reload with
6. 6Delegate Play to unity-playmode-testing and use the construction reference's
7. 7Capture the initial Game view and label state. Set the text field, read its
8. 8Exit Play, preserve the saved screen, and report paths and evidence. If an

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 UI Toolkit Build loads about 1.5k tokens when it runs, and up to ~4.4k if it reads all its reference files. Until then it costs about 107 tokens; SKILL.md has 596 words of instructions outside code blocks.

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

~107

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

~4.4k

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). 596 words, ~1,486 tokens.

name

unity-ui-toolkit-build

description

Build UI Toolkit screens with unity-cli. Use when the user asks to author UXML and USS, configure PanelSettings and UIDocument, bind C# callbacks, and verify the screen in Play Mode. Do not use for interacting with existing UI only; use `unity-ui-automation`. For scene-only creation use `unity-scene-create`, C#-only edits use `unity-csharp-edit`, and runtime capture alone use `unity-playmode-testing`.

allowed-tools

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

metadata.author

akiojin

metadata.version

0.1.0

metadata.category

ui

metadata.triggers

ui-toolkit, uxml, uss, uidocument

metadata.siblings

unity-ui-automation, unity-scene-create, unity-csharp-edit, unity-asset-management, unity-editor-tools, unity-playmode-testing

unity-cli raw create_scene --json '{"sceneName":"ToolkitDemo","path":"Assets/Scenes/Generated/E2E/"}'
unity-cli raw find_ui_elements --json '{"namePattern":"submit","uiSystem":"uitk"}'
unity-cli raw get_ui_element_state --json '{"elementPath":"uitk:/ToolkitDemo#status"}'
unity-cli raw set_ui_element_value --json '{"elementPath":"uitk:/ToolkitDemo#player-name","value":"Ada"}'
unity-cli raw click_ui_element --json '{"elementPath":"uitk:/ToolkitDemo#submit"}'
unity-cli raw get_ui_element_state --json '{"elementPath":"uitk:/ToolkitDemo#status"}'

© 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-ui-toolkit-build of akiojin/unity-cli.

• SKILL.md
• references/construction.md
• references/runtime-checklist.md

Open the folder on GitHubat commit 7f45d7a