Updated 9mo ago
by johnrogers
claude-swift-engineering
A collection of agents and skills to aid in the planning, implementation, documentation and testing of Swift/TCA code.
231 GitHub stars (231)
Steady at 231 stars — no new stars in the 16 days since Sep 30.
- 17 skills (17 skills found in its SKILL.md files)
- 21 forks (21 forks)
- 9mo ago last update (Last updated 9mo ago)
Install
Skills CLI
npx skills add johnrogers/claude-swift-engineering
Asks which skills and agents to install. Just one: npx skills add johnrogers/claude-swift-engineering --skill composable-architecture — add -g for every project.
Claude Code
git clone https://github.com/johnrogers/claude-swift-engineeringcp -r "claude-swift-engineering/plugins/swift-engineering/skills/composable-architecture" ~/.claude/skills/
Copies the composable-architecture skill into ~/.claude/skills/ for every project (use .claude/skills/ for one project). Repeat for the other skills listed below.
Plugin
/plugin marketplace add johnrogers/claude-swift-engineering
Run inside Claude Code if the repository ships a plugin marketplace, then pick plugins from /plugin.
Skills can run code on your machine — read the SKILL.md first.
What it does
In the author's own words, from each skill's SKILL.md.
-
composable-architecture
Use when building features with TCA (The Composable Architecture), structuring reducers, managing state, handling effects, navigation, or testing TCA features. Covers @Reducer, Store, Effect, TestStore, reducer composition, and TCA patterns.
plugins/swift-engineering/skills/composable-architecture/SKILL.md on GitHub (opens in a new tab) -
foundation-models
Use when implementing on-device AI with Apple's Foundation Models framework (iOS 26+), building summarization/extraction/classification features, or using @Generable for type-safe structured output.
plugins/swift-engineering/skills/foundation-models/SKILL.md on GitHub (opens in a new tab) -
generating-swift-package-docs
Use when encountering unfamiliar import statements, exploring dependency APIs, or when user asks "what's import X" or "what does X do". Generates on-demand API documentation for Swift package dependencies.
plugins/swift-engineering/skills/generating-swift-package-docs/SKILL.md on GitHub (opens in a new tab) -
grdb
Use when writing raw SQL with GRDB, complex joins across 4+ tables, window functions, ValueObservation for reactive queries, or dropping down from SQLiteData for performance. Direct SQLite access for iOS/macOS with type-safe queries and migrations.
plugins/swift-engineering/skills/grdb/SKILL.md on GitHub (opens in a new tab) -
haptics
Use when adding haptic feedback for user confirmations (button presses, toggles, purchases), error notifications, or custom tactile patterns (Core Haptics). Covers UIFeedbackGenerator and CHHapticEngine patterns.
plugins/swift-engineering/skills/haptics/SKILL.md on GitHub (opens in a new tab) -
ios-26-platform
Use when implementing iOS 26 features (Liquid Glass, new SwiftUI APIs, WebView, Chart3D), deploying iOS 26+ apps, or supporting backward compatibility with iOS 17/18.
plugins/swift-engineering/skills/ios-26-platform/SKILL.md on GitHub (opens in a new tab) -
ios-hig
Use when designing iOS interfaces, implementing accessibility (VoiceOver, Dynamic Type), handling dark mode, ensuring adequate touch targets, providing animation/haptic feedback, or requesting user permissions. Apple Human Interface Guidelines for iOS compliance.
plugins/swift-engineering/skills/ios-hig/SKILL.md on GitHub (opens in a new tab) -
localization
Use when implementing internationalization (i18n), String Catalogs, pluralization, or right-to-left layout support. Covers modern localization workflows with Xcode String Catalogs and LocalizedStringKey patterns.
plugins/swift-engineering/skills/localization/SKILL.md on GitHub (opens in a new tab) -
modern-swift
Use when writing async/await code, enabling strict concurrency, fixing Sendable errors, migrating from completion handlers, managing shared state with actors, or using Task/TaskGroup for concurrency.
plugins/swift-engineering/skills/modern-swift/SKILL.md on GitHub (opens in a new tab) -
sqlite-data
Use when working with SQLiteData library (@Table, @FetchAll, @FetchOne macros) for SQLite persistence, queries, writes, migrations, or CloudKit private database sync.
plugins/swift-engineering/skills/sqlite-data/SKILL.md on GitHub (opens in a new tab) -
storekit
Use when implementing in-app purchases, StoreKit 2 subscriptions, consumables, non-consumables, or transaction handling. Covers testing-first workflow with .storekit configuration, StoreManager architecture, and transaction verification.
plugins/swift-engineering/skills/storekit/SKILL.md on GitHub (opens in a new tab) -
swift-diagnostics
Use when debugging NavigationStack issues (not responding, unexpected pops, crashes), build failures (SPM resolution, "No such module", hanging builds), or memory problems (retain cycles, leaks, deinit not called). Systematic diagnostic workflows for iOS/macOS.
plugins/swift-engineering/skills/swift-diagnostics/SKILL.md on GitHub (opens in a new tab) -
swift-networking
Use when implementing Network.framework connections (NWConnection, NetworkConnection), debugging connection failures, migrating from sockets/URLSession streams, or handling network transitions. Covers UDP/TCP patterns, structured concurrency networking (iOS 26+), and common anti-patterns.
plugins/swift-engineering/skills/swift-networking/SKILL.md on GitHub (opens in a new tab) -
swift-style
Swift code style conventions for clean, readable code. Use when writing Swift code to ensure consistent formatting, naming, organization, and idiomatic patterns.
plugins/swift-engineering/skills/swift-style/SKILL.md on GitHub (opens in a new tab) -
swift-testing
Use when writing tests with Swift Testing (@Test,
plugins/swift-engineering/skills/swift-testing/SKILL.md on GitHub (opens in a new tab) -
swiftui-advanced
Use when implementing gesture composition (simultaneous, sequenced, exclusive), adaptive layouts (ViewThatFits, AnyLayout, size classes), or choosing architecture patterns (MVVM vs TCA vs vanilla, State-as-Bridge). Covers advanced SwiftUI patterns beyond basic views.
plugins/swift-engineering/skills/swiftui-advanced/SKILL.md on GitHub (opens in a new tab) -
swiftui-patterns
Use when implementing iOS 17+ SwiftUI patterns: @Observable/@Bindable, MVVM architecture, NavigationStack, lazy loading, UIKit interop, accessibility (VoiceOver/Dynamic Type), async operations (.task/.refreshable), or migrating from ObservableObject/@StateObject.
plugins/swift-engineering/skills/swiftui-patterns/SKILL.md on GitHub (opens in a new tab)
No skill matches that filter.
Review before you install
A skill is a set of instructions and scripts your agent will follow, and it can run code on your machine. Read the SKILL.md and any scripts first — this listing is not a security review.
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