native controls Shipped
What this lens looks for
Use platform built-in frameworks before custom implementations; WinUI 3 controls over custom-drawn equivalents; Windows App SDK APIs for system integration; note explicitly which native controls are used and why; if ambiguity exists about native control fit, ask before proceeding
What its verifier checks
No custom reimplementations of standard WinUI 3 controls; system APIs used for file access, notifications, and background tasks; deviations from native controls documented with rationale