Skip to main content
Frontend Developmentexistential-birds

swiftui-code-review

Reviews SwiftUI code for view composition, state management, performance, and accessibility. Use when reviewing .swift files containing SwiftUI views, property wrappers (@State, @Binding, @Observable), or UI code.

Stars
60
Source
existential-birds/beagle
Updated
2026-05-31
Slug
existential-birds--beagle--swiftui-code-review
View on GitHubRaw SKILL.md

// install — copy + paste into any project

mkdir -p .claude/skills && curl -fsSL https://raw.githubusercontent.com/existential-birds/beagle/HEAD/plugins/beagle-ios/skills/swiftui-code-review/SKILL.md -o .claude/skills/swiftui-code-review.md

Drops the SKILL.md into .claude/skills/swiftui-code-review.md. Works with Claude Code, Cursor, and any agent that loads SKILL.md files from .claude/skills/.

SwiftUI Code Review

Quick Reference

Issue Type Reference
View extraction, modifiers, body complexity references/view-composition.md
@State, @Binding, @Observable, @Bindable references/state-management.md
LazyStacks, AnyView, ForEach, identity references/performance.md
VoiceOver, Dynamic Type, labels, traits references/accessibility.md

Gates (review workflow)

Complete in order; do not skip ahead.

  1. Anchor scope — Pass when: every reviewed file is listed as a repo-relative .swift path (or the review explicitly states “none opened / N/A” with reason).
  2. Reference before critique — Pass when: for any non-trivial body, modifier chain, or wrapper-ownership question, you have opened the matching references/*.md row from the table above or you state “not needed” with one line why.
  3. Evidence-bound findings — Pass when: each substantive issue includes [FILE:LINE] (or a bounded line range) before recommendations; symbols/snippets may supplement but not replace the location anchor; no finding that rests only on “typical SwiftUI” without pointing at this code.

Review Checklist

  • View body under 10 composed elements (extract subviews)
  • Modifiers in correct order (padding before background)
  • @StateObject for view-owned objects, @ObservedObject for passed objects
  • @Bindable used for two-way bindings to @Observable (iOS 17+)
  • LazyVStack/LazyHStack for scrolling lists with 50+ items
  • No AnyView (use @ViewBuilder or generics instead)
  • ForEach uses stable Identifiable IDs (not array indices)
  • All images/icons have accessibilityLabel
  • Custom controls have accessibilityAddTraits(.isButton)
  • Dynamic Type supported (no fixed font sizes)
  • .task modifier for async work (not onAppear + Task)

When to Load References

  • Complex view bodies or modifier chains -> view-composition.md
  • Property wrapper usage (@State, @Observable) -> state-management.md
  • List performance or view identity issues -> performance.md
  • VoiceOver or accessibility implementation -> accessibility.md

Review Questions

  1. Could this large view body be split into smaller, reusable Views?
  2. Is modifier order intentional? (padding -> background -> frame)
  3. Is @StateObject/@ObservedObject usage correct for ownership?
  4. Could LazyVStack improve this ScrollView's performance?
  5. Would VoiceOver users understand this interface?