unity-uitoolkit-authoring

Unity UI Toolkit Authoring

For Canvas-based controls and RectTransform layout, use unity-ugui-authoring instead.

Read .claude/skills/unity-mcp-operations/SKILL.md once if it is not already loaded. Enable UITOOLKIT when these tools are gated.

Tool Map

Use discover_tools("uitoolkit") to enable the category, then resolve all uncertain schemas in one resolve_tool_schema call.

Inspect And Query

Start from the live tree:

inspect_uitk(path="/HUD", depth=5, show_style=True)
uitk_element(action="get", path="/HUD", name="health-label", property="text")
uitk_element(action="query", path="/HUD", selector=".inventory__slot")

inspect_uitk accepts a GameObject path containing UIDocument; omit the path or use scene to list open documents. A ~N ref is valid only for the current inspection table. Re-inspection or domain reload can make it stale.

uitk_element supports:

• query, get, and get_style for reads;
• set_style, add_class, remove_class, enable, and disable for live instance changes.

Element addressing priority is ref, then name, then selector. Use property for get, get_style, or set_style, and class_name for class operations. Live element changes are not edits to the UXML or USS source; use uitk_file for persistent asset changes.

Author Assets

uitk_file supports these actions:

read
write
create_uxml
create_uss
set-attr
add-class
remove-class
add-element
remove-element
set-rule
remove-rule
revert

Paths must be .uxml or .uss assets below Assets/; Library/ and Packages/ are rejected. read returns the file's UTF-8 content verbatim and is permitted on a read-only worker; every other or unknown action is a write. revert is a single-level in-memory recovery and is cleared by domain reload; it is not version control.