Skill: Screenshot Guidelines

<!-- SEO: App Store screenshots splash screen launch screen Android UI actual app UI Guideline 2.3.3 2.3.10 iOS metadata rejection -->

Purpose

Detects screenshot submission issues including launch-screen-only assets and cross-platform UI references, enforcing Guideline 2.3.3 which requires screenshots to show the app in actual use.

Apple Guideline

• Primary: 2.3.3 — Performance: Accurate Metadata — Screenshots
• Related: 2.3.10
• Reference: references/guidelines/2-performance.md

Real-World Rejection Cases

• Case: All 5 screenshots showed splash screen / app icon — reviewer couldn't see actual UI — rejected Source: Apple Developer Forums (Guideline 2.3.3 enforcement) Root cause: Screenshots must show the app in actual use; title art / login screens alone are not sufficient — reviewers expect to see core features and UI in the screenshots

• Case: Screenshots contained Android UI elements (floating action button) — rejected under 2.3.10 Source: mobiloud.com/blog/avoid-app-rejected-apple Root cause: App Store metadata must not reference other platforms — Android-specific UI components visible in screenshots signal a cross-platform port and may mislead users

Trigger

Invoke on any iOS/macOS project before App Store submission to flag screenshot-related metadata issues.

Inputs

Name	Type	Default	Description
project_root	path	cwd	iOS/macOS project root
shared_context	object	nil	Pre-collected context from appstore-full-audit Phase 1

Actions

Phase 1: Context Collection

Skip this phase if shared_context is provided.

1. Glob **/LaunchScreen* — locate launch screen files.
2. Glob **/*.xcassets — locate asset catalogs.
3. Glob **/fastlane/screenshots/** or **/screenshots/** — locate screenshot directories if using Fastlane or manual screenshot folders.
4. Glob **/metadata/** or **/*.md — locate description/metadata text files for platform reference checks.

Phase 2: Checks

1. Launch screen in screenshots directory Glob **/LaunchScreen* — if only launch screen storyboard/xib assets exist and no distinct screenshot assets found in screenshot directories → 🟡 MEDIUM. Indicates screenshots may not have been updated from default assets. Cannot fully verify without manual App Store Connect review.

2. Android platform references in metadata Grep pattern "Android"|"Google Play"|"Play Store"|"APK"|"floating action button" in any description, metadata, or store listing text files (**/*.txt, **/*.md in metadata/fastlane directories). Any match → 🟠 HIGH. App Store screenshots and metadata must not reference Android or Google Play.

3. Manual screenshot verification reminder Always output a LOW best-practice item reminding the developer to manually verify App Store Connect screenshots. Screenshot content cannot be fully validated programmatically.

Phase 3: Output

Collect all findings from Phase 2 and build the prioritised findings list below. Include file paths and line numbers. Omit tiers with no findings.

Output Format

## Screenshot Guidelines — Findings

### 🔴 CRITICAL — Guaranteed rejection
- [ ] TODO: <exact actionable step> — `file:line` — Guideline 2.3.3

### 🟠 HIGH — Very likely rejection
- [ ] TODO: Remove "Android" / "Google Play" reference from App Store metadata description — `fastlane/metadata/en-US/description.txt:12` — Guideline 2.3.10

### 🟡 MEDIUM — Possible rejection
- [ ] TODO: Verify screenshots in App Store Connect are not all launch/splash screens — upload screenshots showing core app features and actual UI — Guideline 2.3.3

### 🟢 LOW — Best practice
- [ ] TODO: Manually review all 5 App Store screenshots before submission — verify each shows a distinct in-app feature, not login screen or onboarding only
- [ ] TODO: Ensure screenshots match the device frame (iPhone 6.5", 5.5", iPad 12.9") required by App Store Connect — mismatched sizes cause upload errors

Tools Used

Glob, Grep, Read

Constraints

• Read-only. No file edits.
• No network calls.
• Skip Phase 1 if shared_context is provided by orchestrating agent.
• Works on Swift, Objective-C, React Native, Flutter projects.

Quick Commands

Run these in your project root to check manually:

# Check for Android references in any file
!grep -rn "Android\|Google Play\|Play Store" . --include="*.swift" --include="*.md" --include="*.strings"

# List launch screen assets (should not be only screenshots)
!find . -name "LaunchScreen*" -not -path "*/Pods/*"

Swift Anti-Pattern Reference

examples/swift/QualityPatterns.swift

Detection Steps

1. Find target files

   • Glob: **/fastlane/screenshots/ (Fastlane projects), **/*.xcassets, **/AppStoreConnect/
   • Note: Screenshots are often managed outside the repo (Xcode Organizer, App Store Connect web). If no local screenshot directory is found, flag for manual verification rather than treating as a definitive absence.

2. Search for rejection patterns

   • If fastlane/screenshots/ exists: check it contains image files for en-US locale
   • Grep LaunchScreen\|Splash\|splash\|launch_screen in screenshot filenames — launch screen used as screenshot
   • Check for required App Store screenshot sizes: 1290x2796 (6.7" iPhone 15 Pro Max), 2048x2732 (iPad Pro 12.9")

3. Determine verdict

   • No screenshots directory or empty → 🟠 HIGH (Guideline 2.3.3)
   • Screenshots show splash/launch screen only → 🟠 HIGH
   • Screenshots missing required device sizes → 🟠 HIGH
   • Screenshots show actual in-app UI at required sizes → 🟢 pass

4. Report

   • Missing screenshot sizes or splash-only screenshots
   • Fix: Capture screenshots showing core app UI on iPhone 15 Pro Max and iPad Pro 12.9"; use Fastlane snapshot for automation