--- title: "SwiftUI Best Practices, straight from Apple’s Xcode 27 Agent Skill" url: https://daily.dev/posts/swiftui-best-practices-straight-from-apple-s-xcode-27-agent-skill-altqzu2zj source_url: https://www.avanderlee.com/ai-development/swiftui-best-practices-xcode-27-agent-skill type: article source: "SwiftLee" published: 2026-06-16T08:32:33.694Z updated: 2026-06-17T10:20:50.771Z tags: ["performance", "ai-agents", "swift", "swiftui", "xcode"] reading_time: 14 upvotes: 1 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # SwiftUI Best Practices, straight from Apple’s Xcode 27 Agent Skill **[SwiftLee](https://daily.dev/sources/avanderlee)** · 14 min read · 1 upvotes · 0 comments ## Summary Xcode 27, released at WWDC 2026, ships with a SwiftUI Specialist Agent Skill — a compact set of Markdown reference files that guide AI agents toward SwiftUI best practices. The skill covers view invalidation boundaries, data flow with @State/@Observable, the dangers of the .if view modifier, stable ForEach identity, cheap view inits, and single-root List rows. Each reference file is loaded on demand to minimize token usage. The author analyzes what Apple included and what's missing (accessibility, NavigationStack patterns, layout, macOS, Swift Charts, etc.), then announces SwiftUI Expert Skill 4.0.0, an open-source skill that merges Apple's guidance with broader coverage. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [SwiftUI Agent Skill: Build better views with AI](https://daily.dev/posts/swiftui-agent-skill-build-better-views-with-ai-lledxwb6h) · SwiftLee · 0 upvotes · 0 comments --- Tags: [#performance](https://daily.dev/tags/performance), [#ai-agents](https://daily.dev/tags/ai-agents), [#swift](https://daily.dev/tags/swift), [#swiftui](https://daily.dev/tags/swiftui), [#xcode](https://daily.dev/tags/xcode) [View this post on daily.dev](https://daily.dev/posts/swiftui-best-practices-straight-from-apple-s-xcode-27-agent-skill-altqzu2zj)