composable-architecture

SKILL.md

TCA provides architecture for building complex, testable features through composable reducers, centralized state management, and side effect handling. The core principle: predictable state evolution with clear dependencies and testable effects.

ALWAYS load reference files if there is even a small chance the content may be required. It's better to have the context than to miss a pattern or make a mistake.

| Reducer Structure | Creating new reducers, setting up @Reducer, State, Action, or @ViewAction | | Views - Binding | Using @Bindable, two-way bindings, store.send(), or .onAppear/.task | | Views - Composition | Using ForEach with stores, scoping to child features, or optional children |

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. Source: johnrogers/claude-swift-engineering.

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