Comprehensive coverage of Core Location and MapKit for iOS, split into conceptual guides, API references, and diagnostics for both frameworks. Covers the authorization escalation dance (When In Use first, Always later), monitoring strategies (continuous vs significant-change vs CLMonitor), and the SwiftUI Map vs MKMapView decision. The anti-rationalization table is spot on: requesting Always authorization upfront gets 30-60% denial, and putting annotations in the view body causes hitches even with modest counts. Worth noting it covers iOS 17+ APIs like CLLocationUpdate and CLMonitor heavily, so if you're stuck on older deployment targets, some guidance won't apply. The diagnostics sections are the real value, systematically addressing why location updates never arrive or why annotations disappear.
npx skills add https://github.com/charleswiltgen/axiom --skill axiom-location