/layers-surface Assumes has been loaded. This skill is a library of techniques, not a script — see "How to use these skills" there. The surface layer is where everything decided below becomes something a person actually encounters: words, sounds, visuals, physical affordances, motion, feedback. It's the most medium-specific layer, but the decisions that matter most first are universal — they hold whether the surface is a screen, voice interface, physical device, or service touchpoint. Surface problems are often symptoms of deeper ones. The central discipline here is telling apart issues you c…