ui-imgui

An agent skill by Unity-Technologies, from Unity-Technologies/unity-agent-plugin. Tags: design, games, unity.

What it does

Unity IMGUI (Immediate Mode GUI) expert for legacy editor tools using OnGUI/immediate mode. Generates and modifies IMGUI EditorWindows, custom Inspectors, PropertyDrawers, and scripts with IMGUI code (OnGUI, OnInspectorGUI). Use when maintaining existing IMGUI editor code or when user explicitly requests IMGUI/OnGUI. Do not use for NEW editor windows or tools: new editor UI defaults to UI Toolkit (ui-uitk) unless the project already uses IMGUI exclusively or the user asks for OnGUI by name.

Install

With the skills CLI, which installs into Claude Code, Codex, Cursor and other agents:

npx skills add Unity-Technologies/unity-agent-plugin --skill ui-imgui

Or copy the skill folder into Claude Code's skills directory by hand (~/.claude/skills for every project, or .claude/skills inside one):

git clone --depth 1 https://github.com/Unity-Technologies/unity-agent-plugin
cp -r unity-agent-plugin/skills/ui-imgui ~/.claude/skills/ui-imgui

Safety box score

Not rated yet. A safety box score grades what a skill and its scripts can reach on the machine of whoever installs it, across eight categories from shell execution to secrets access. Anyone can request one from this page; it is saved for everyone. How the score works.

Source

Repository

Unity-Technologies/unity-agent-plugin (all skills from this repository)

Path

skills/ui-imgui/SKILL.md

Branch

main

Updated

2026-09-22

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