Add an undoable editor command for scene, asset, prefab, or tilemap mutations. Use when implementing create/delete/rename/move/property edits, continuous gestures that must commit one history entry, or when UI currently mutates DocumentManager without CommandManager.
Create game Script components (defineComponent + OOP behaviour class) for games/ /src/components or packages/game-components. Use when adding a game component, script component, behaviour, Loading/Change Scene logic, bus event handlers, or Inspector Add Component entries.
Scaffold a new independently buildable game under games/ (package.json, project.json, Vite, scenes, runtime boot). Use when adding a new game, game package, games/ project, Pixi-only / Three-only / hybrid game, or copying editor-features-demo / solitaire / muonline-game.