SwiftUI Debugging Diagnostics

When to Use This Diagnostic Skill

Use this skill when:

• Basic troubleshooting failed — Applied axiom-swiftui-debugging skill patterns but issue persists
• Self._printChanges() shows unexpected patterns — View updating when it shouldn't, or not updating when it should
• Intermittent issues — Works sometimes, fails other times ("heisenbug")
• Complex dependency chains — Need to trace data flow through multiple views/models
• Performance investigation — Views updating too often or taking too long
• Preview mysteries — Crashes or failures that aren't immediately obvious

FORBIDDEN Actions

Under pressure, you'll be tempted to shortcuts that hide problems instead of diagnosing them. NEVER do these:

❌ Guessing with random @State/@Observable changes

• "Let me try adding @Observable here and see if it works"
• "Maybe if I change this to @StateObject it'll fix it"