SwiftUI‑Agent‑Skill: AI‑Driven SwiftUI Best‑Practice Guide

TL;DR: SwiftUI‑Agent‑Skill is a free, MIT‑licensed open‑source plugin that turns your AI coding assistant into an on‑demand SwiftUI expert. Instantly get recommendations for modern APIs, state‑management patterns, list performance, and more.

What is SwiftUI‑Agent‑Skill?

SwiftUI‑Agent‑Skill is built on the Agent Skills open‑format, designed to give AI tools like Claude, Cursor, or Codex domain‑specific expertise. Specifically for SwiftUI, the skill bundles:

• Modern‑API replacements – Spot and swap deprecated APIs with the latest SwiftUI 5.5+ syntax.
• State‑management guidance – Decide between @State, @Binding, @Observable, @Bindable, and other wrappers.
• Performance patterns – Avoid re‑renders, optimize list identity, and downsample images.
• UI/UX patterns – Advice on sheets, navigation, scroll‑views, and the new iOS 26+ liquid glass effects.
• Code‑review checklists – Structured in SKILL.md and reference files for quick lookup.

All of this is delivered directly to your AI assistant, turning it into a real-time code review partner.

Who Should Use It?

1. SwiftUI teams adopting the newest APIs who need quick, correct defaults.
2. Developers reviewing or refactoring SwiftUI views.
3. Coders shipping dynamic lists, sheets, navigation and high‑performance UIs.
4. AI‑tool users who want to keep their codebase modern without learning everything from scratch.

How to Install

Option A: Using skills.sh (recommended)

npx skills add https://github.com/avdlee/swiftui-agent-skill --skill swiftui-expert-skill

Option B: Claude Code Plugin

1. Add the marketplace:

   /plugin marketplace add AvdLee/SwiftUI-Agent-Skill
   

2. Install the skill:

   /plugin install swiftui-expert@swiftui-expert-skill
   

   Your project can automatically prompt teammates to install the skill via a .claude/settings.json configuration.

Option C: Manual Install

Clone the repo and follow the tool‑specific instructions in the README.

Using the Skill Inside Your Workflow

Once installed, you can ask the AI to reference swiftui-expert:

Use the swiftui-expert skill to review this view for state‑management.

Repository Structure

swiftui-expert-skill/
├── SKILL.md                 # Skill manifest & user guide 
├── references/              # Tiny, focused docs
│   ├── image-optimization.md
│   ├── layout-best-practices.md
│   ├── liquid-glass.md
│   ├── list-patterns.md
│   ├── modern-apis.md
│   ├── performance-patterns.md
│   ├── scroll-patterns.md
│   ├── sheet-navigation-patterns.md
│   ├── state-management.md
│   └── view-structure.md
└── AGENTS.md                # Installation & usage instructions

Contribution Guide

We welcome pull requests! Follow the CONTRIBUTING.md file: * Keep the skill non‑opinionated; focus on correctness, not an architectural pattern. * Add or update checklists when APIs evolve. * Ensure all text is concise and directly usable by the AI.

Once approved, your contribution becomes part of the next skill rollout.

Why It Matters

• Speed – Developers no longer need to search the SwiftUI docs for every subtle nuance.
• Consistency – A single source of truth for best‑practice guidance across teams.
• Future‑proof – Our modern-apis.md file actively tracks API deprecations, keeping your codebase up‑to‑date.
• Performance – By following the recommended patterns, you can drastically reduce view update churn and improve scrolling performance.

Get Involved

• ⭐ Star the repo to support ongoing maintenance.
• Open an issue if you spot a missing pattern or an outdated replacement.
• Submit a PR with new checklists or improvements.

Happy coding, and may your SwiftUI views stay light, fast, and future‑ready!