The Final 5% — iOS Design Engineering Skill

"Whoever made this actually gives a shit."

That's the only goal. Everything in this file is in service of someone using your app and feeling, in their bones, that a human cared. This is the skill you load when the app works but doesn't feel right. When everything compiles and ships but the spark is missing.

This skill assumes a native Swift/SwiftUI iOS app, targeting iOS 17 minimum and ideally iOS 26 (Liquid Glass). It pairs with camera-and-photos, chat-and-messaging, and interaction-primitives — but the patterns here apply to every app.

Output format — required

When this skill is invoked to review code, audit a design, or recommend changes, always output recommendations as a markdown table with three columns: