hoangnguyen0403/ios-swiftui
skills/ios/ios-swiftui/SKILL.md
Build declarative UI and manage data flow with SwiftUI in iOS. Use when building declarative SwiftUI views or managing data flow with property wrappers.
$ install --global
skillsauthnpx skillsauth add hoangnguyen0403/agent-skills-standard ios-swiftuiInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
Security Scan Results
3 of 9 scanners reported clean
Some scanners were skipped, did not run, or reported a non-clean status. Review each row below.
3
Scanners Passed
9
Scanners in report
Clean
TrivyContainer and dependency vulnerability scanner
95%
Clean
SemgrepStatic code analysis for vulnerabilities
95%
Clean
mcp-scan (Snyk)Model Context Protocol security validation
95%
Skipped
Snyk (dep)Open source security scanning
50%
Skipped
Socket.devSupply chain security analysis
50%
Skipped
VirusTotalMulti-engine malware detection
50%
Skipped
CrowdStrikeAdvanced threat intelligence
50%
Skipped
OSV-ScannerOpen Source Vulnerability database check
50%
Skipped
OWASP Dep-Check
50%
Last scanned: May 20, 2026, 3:02 AM122.1s2 files scanned
SKILL.md
- name:
- ios-swiftui
- description:
- Build declarative UI and manage data flow with SwiftUI in iOS. Use when building declarative SwiftUI views or managing data flow with property wrappers.
SwiftUI Expert
Priority: P0 (CRITICAL)
Role: iOS UI Expert. Prioritize smooth 60fps, clean data flow.
Implementation Guidelines
- Views: Small, composable structs. Extract subviews often to keep
bodyclean. - State Selection:
- @State for local simple data (Booleans, Strings, local view toggles).
- @StateObject for VMs (initialized only once in parent view).
- @ObservedObject for passed-in VMs (initialized by parent).
- Modifiers: Order matters sequentially. Apply layout modifiers before visual ones (e.g.,
.padding().background()). - Preview: Always provide
PreviewProvideror#Previewfor every view.
Verification Checklist (Mandatory)
- [ ] Body Property: body property computationally cheap? (No complex logic or calculations).
- [ ] State Flow:
@StateObjectinitialized only once (in parent)? - [ ] Identity: Lists/ForEach stable
id? - [ ] Main Actor: UI updates strictly on Main Actor?
Anti-Patterns
- No Logic in Body: Move calculations to ViewModel or computed vars. Keep
bodyfor UI composition only. - No ObservedObject Init: NOT init
@ObservedObjectinside View settings — this causes leaks and performance issues. - No Hardcoded Sizes: Use flexible frames and spacers for responsive UI.
References
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