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SKILL.md
name: app-store-assetsdescription: Comprehensive App Store asset specifications and guidelines for all promotional artwork — app icons, screenshots, app previews, event cards, subscription images, and featuring artwork. Use when preparing assets for App Store Connect upload.allowed-tools: [Read, Write, Edit, Glob, Grep, AskUserQuestion]last_verified: 2026-07-16review_by: 2027-06-22
App Store Assets Generator
Generate complete asset specifications, design guidelines, and checklists for all App Store Connect promotional artwork and media.
When This Skill Activates
Use this skill when the user:
Asks about "App Store asset specs" or "screenshot sizes"
Mentions "app preview" video requirements
Wants to know "what images do I need" for App Store
Preparing assets for submission or update
Asks about "featuring artwork" or "subscription images"
Needs a comprehensive asset checklist
Configuration Questions
Ask user via AskUserQuestion:
Which platforms? (multi-select)
iPhone
iPad
Mac
Apple Watch
Apple TV
Apple Vision Pro
What assets do you need?
App icon
Screenshots
App preview video
In-App Event card images
Subscription promotional images
Custom Product Page assets
All of the above
Output Format
Read specs-reference.md and generate a customized asset checklist for the user's platforms.
# App Store Asset Checklist: [App Name]
## Required Assets
### App Icon
| Spec | Value |
|------|-------|
| Size | 1024 x 1024 px |
| Format | PNG |
| Color space | sRGB or Display P3 |
| Layers | Flat (no transparency, no rounded corners) |
| Shape | Square (system applies mask) |
### Screenshots: [Platform]
[Platform-specific requirements]
### App Preview (Optional but Recommended)
[Video specifications]
## Promotional Assets
### In-App Event Card
[Specs if applicable]
### Subscription Image
[Specs if applicable]
## Production Checklist
- [ ] All sizes prepared
- [ ] Localizations ready
- [ ] Tested on actual devices for readability
- [ ] Compliant with Apple content guidelines
References
specs-reference.md — Complete specifications for all asset types
Related: app-store/screenshot-planner — Screenshot strategy and captioning