Getting Started

Welcome to Axiom — battle-tested Claude Code skills, commands, and references for modern xOS (iOS, iPadOS, tvOS, watchOS) development — Swift 6, SwiftUI, Liquid Glass, Apple Intelligence, and more.

What is Axiom?

Axiom provides comprehensive iOS development workflows:

• 31 discipline-enforcing skills — Mandatory workflows (18 TDD-tested using "red/green/refactor" methodology)
• 12 reference skills — Comprehensive guides without mandatory workflows
• 7 diagnostic skills — Systematic troubleshooting with pressure defense
• 12 commands — Quick automated scans for common issues
• 13 agents — Natural language triggered automation

Total: 50 skills + 12 commands + 13 agents

🤖 Apple Intelligence

• Foundation Models – Implement on-device AI with structured output and tool calling
• Foundation Models Diagnostics – Fix context exceeded, guardrail violations, and availability issues
• Foundation Models Reference – Complete API guide with all 26 WWDC 2025 code examples
• App Intents Reference – Integrate with Siri, Apple Intelligence, Shortcuts, and Spotlight
• SwiftUI 26 Reference – iOS 26 SwiftUI features including Liquid Glass and performance improvements

🎨 UI & Design Skills

• Human Interface Guidelines – Quick design decisions and checklists for HIG compliance
• HIG Reference – Comprehensive Apple HIG guide with troubleshooting
• Liquid Glass – Implement Apple's glass effects correctly and get expert validation
• SwiftUI Performance – Find what's making your views slow and fix it
• UI Testing – Record tests that work reliably across devices and languages

🐛 Debugging & Performance

• Xcode Debugging – Fix mysterious build failures and zombie processes fast
• Memory Debugging – Find memory leaks before users complain about crashes
• Build Troubleshooting – Resolve dependency conflicts under production pressure

⚡ Concurrency & Async

• Swift Concurrency – Prevent data races and fix actor isolation errors in Swift 6

💾 Data & Persistence

• Database Migration – Add columns without losing user data
• SQLiteData – Handle batch imports and CloudKit sync without performance issues
• GRDB – Optimize complex queries and prevent N+1 query problems
• SwiftData – Prevent CloudKit sync failures and handle concurrent access safely
• Realm Migration Reference – Migrate from Realm to a supported data persistence system
• Core Data Diagnostics – Fix migration crashes and thread-confinement errors

♿ Accessibility

• Accessibility Diagnostics – Fix VoiceOver, Dynamic Type, color contrast, and touch target issues

🌐 Networking

• Networking – Network.framework patterns for UDP/TCP with NWConnection (iOS 12-25) and NetworkConnection (iOS 26+)
• Networking Diagnostics – Fix connection timeouts, TLS failures, data arrival issues
• Network.framework Reference – Complete API guide covering iOS 12-26+ with all WWDC examples

🔄 UIKit & Legacy

• UIKit Animation Debugging – Fix animations that don't fire or behave differently on device
• Objective-C Block Retain Cycles – Find and fix memory leaks from blocks

Prerequisites

• Claude Code (download here)
• Xcode 26+ (for Liquid Glass, Recording UI Automation, and latest iOS features)
• iOS 26 SDK (comes with Xcode 26)

What's Next?

• Quick Start → — Install Axiom and start using skills
• Example Workflows → — Step-by-step guides for common tasks
• View all skills → — Browse the complete skill catalog