msw-sprite-ruid — Claude Code skill: RUID in sprite renderers

What msw-sprite-ruid does

This skill covers assigning RUID to sprite renderers, both in the world and in UI. Both components take a sprite or animationclip RUID directly, so no separate animator is needed. In the world SpriteRUID stays a plain string; in UI ImageRUID is a DataRef, so runtime .mlua code writes DataRef(ruid). The { DataId: ruid } object form belongs in .ui and .model JSON or builder patch data only — the LSP rejects it in runtime code as a DataRef type mismatch.

The thumbnail:// prefix turns any resource into a static thumbnail image. It accepts sprite, animationclip, skeleton and avataritem. The main case is item icons: an avataritem RUID renders nothing on its own, and with the prefix it becomes an icon for an inventory slot, a shop listing or an equip preview. For live animation you skip the prefix and assign the animationclip RUID itself.

Watch the silent failures. A skeleton or avataritem RUID assigned without the prefix gives no error and draws nothing, which is worth checking first when a slot stays empty. The prefix is not accepted by CostumeManagerComponent.Custom*Equip, StateAnimationComponent.ActionSheet or SkeletonRendererComponent.SkeletonRUID. And do not prepend it to a RUID you already pulled as an icon or thumbnail through the msw-search skill. Multi-state setups (stand, move, attack) need StateAnimationComponent with an ActionSheet.