Agent Skills: appstore-screenshots

Capture reproducible real-app App Store screenshots for iOS, iPadOS, and macOS; compose marketing frames; upload screenshot assets; and perform authenticated App Store Connect API inspection for apps, builds, and beta groups. Use for "App Store 스크린샷", "앱스토어 스크린샷", "스토어 이미지 업로드", "ASC API 조회", "TestFlight 빌드 조회", "screenshot capture", or "store screenshots" requests. Do not use for generic browser automation.