Swiftui Performance

A structured workflow for tracking down SwiftUI performance problems, from code review through Instruments profiling to targeted fixes. It walks you through common bottlenecks like view invalidation storms, unstable ForEach identities, heavy work in body computations, and layout thrash. The skill includes a decision tree that starts with static code analysis before reaching for profiling, plus a solid reference section on identity semantics and instrumentation techniques. The code smell catalog is honest about real world patterns like formatters in body and top level conditional swapping. Best used when you've got jank or frame drops and need a methodical audit rather than guessing at fixes.

skills.sh installs: 4.8K
GitHub stars: 1.3K
last updated: Aug 21, 2026

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Install

$ npx -y skills add dpearson2699/swift-ios-skills --skill swiftui-performance --agent claude-code

Installs into .claude/skills of the current project.

Files

SwiftUI Performance

Audit SwiftUI view performance from a reproducible symptom to measured remediation. Route animation design to swiftui-animation, production telemetry to metrickit, ownership/leak analysis to ios-memgraph-analysis, navigation behavior to swiftui-navigation, state architecture to swiftui-patterns, and layout construction to swiftui-layout-components.