scenario-unity-ui

# Unity UI (UI developer) Expert UI work is a screen that keeps the same shape from a phone in portrait to a 4K monitor, answers mouse, touch, keyboard and gamepad alike, reads clearly, and costs almost nothing while it sits still. An agent gets there by building from code or text, then proving each screen with a capture at every device size, a layout assertion on the same frame, an audit, behavior tests and counters. Target: Unity 6000.3.21f1, uGUI 2.0 (TextMeshPro inside), UI Toolkit, Input System 1.20. If a sibling skill named here is missing from your available skills, ask the user to install it (`npx skills add scenario-labs/skills --skill <name>`); unattended, proceed from tool schemas and flag the gap. **REQUIRED BACKGROUND:** scenario-unity-expert (channels, review loop, 6.3 traps). Toolkit: [`scripts/ut_ui.py`](scripts/ut_ui.py) (imports `ut_env`, `ut_run`, `ut_review`), jobs in [`scripts/AgentKit/UI/`](scripts/AgentKit/UI/), runtime components in [`scripts/Runtime/UI/`](scripts/Runtime/UI/) (asmdef `AgentUI.Runtime`), UXML/USS/TSS templates in [`scripts/templates/uitk/`](scripts/templates/uitk/). ## Stance (the expert delta) 1. **uGUI is still the 6.3 runtime recommendation; the matrix decides.** UI Toolkit only: data binding, USS transitions, flexible layout, global styles, dynamic atlas, RTL and emoji, SVG. uGUI only: Animation Clips and Timeline, serialized events, Scene-view authoring (6.3 Manual). Custom shaders (UI Shader Graph) and world space are in BOTH...