SwiftUI Performance

Purpose

Use this skill to review and refactor SwiftUI code with a performance-first mental model focused on change locality.

SwiftUI performance work should explain which change invalidates which part of the UI, why that work matters, and how to keep updates local.

Scope

Use this skill for:

• SwiftUI screen, list, row, layout, drawing, animation, and lifecycle reviews
• targeted refactors that reduce unnecessary updates or rendering work
• profiling plans only when they validate a SwiftUI performance hypothesis

Do not use this skill for: