Diagnostic Skills
Systematic diagnostics for production issues with mandatory workflows and pressure scenario defense.
Diagnostic Skills
| Skill | Description |
|---|---|
| accessibility-diag | VoiceOver, Dynamic Type, color contrast, touch targets — WCAG compliance with App Store rejection defense |
| cloud-sync-diag | CloudKit errors, iCloud Drive sync failures, quota exceeded — systematic cloud sync diagnostics with production crisis defense |
| core-data-diag | Schema migrations, thread-confinement, N+1 queries — Core Data diagnostics with production crisis defense |
| energy-diag | Battery drain, device hot, background drain, cellular usage — symptom-based decision trees with time-cost analysis |
| foundation-models-diag | Context exceeded, guardrail violations, slow generation — Foundation Models diagnostics with production crisis defense |
| networking-diag | Connection timeouts, TLS failures, data arrival issues — Network.framework diagnostics with production crisis defense |
| storage-diag | Files disappeared, backup too large, file access errors — systematic local storage diagnostics with production crisis defense |
| swiftdata-migration-diag | SwiftData migration crashes, relationship preservation failures, device vs simulator issues — schema migration diagnostics with testing workflows |
| swiftui-debugging-diag | Intermittent view updates, complex state dependencies, Self._printChanges() analysis — systematic SwiftUI debugging with Instruments integration |
| swiftui-nav-diag | Navigation not responding, deep links showing wrong screen, state lost on tab switch — SwiftUI navigation diagnostics with production crisis defense |
Quality Standards
Diagnostic skills are reviewed against 4 criteria plus mandatory workflows:
- Accuracy — Every claim cited to official sources, code tested
- Completeness — 80%+ coverage, edge cases documented, troubleshooting sections
- Clarity — Examples first, scannable structure, jargon defined
- Practical Value — Copy-paste ready, expert checklists, real-world impact
- Mandatory Workflows — Required diagnostic steps with pressure scenario defense
Diagnostic skills add pressure scenario defense for production crisis situations.