Challenge

Swift 6 concurrency patterns. Use when working with async/await, actors, MainActor isolation, or Sendable conformance.

Creates Features for dependency injection. Use when creating features, exposing public entry points, or wiring up dependencies.

Creates Repositories that abstract data access. Use when creating repositories, transforming DTOs to domain models, or implementing local-first caching. Supports remote-only, local-only, and cached (remote + local) repositories with CachePolicy.

Creates a new feature module with minimal viable structure. Use when bootstrapping a new feature from scratch, scaffolding the Tuist module, Container, Feature entry point, DeepLinkHandler, and initial screen with placeholder Text view. Includes all unit tests, mocks, stubs, and app integration. For adding domain/data layers afterward, use /datasource, /repository, /usecase. For enhancing views, use /view, /viewmodel, /navigator.

Creates Navigator for navigation. Use when setting up navigation, adding navigation to ViewModels, or testing navigation behavior.

Creates ViewModels with state management. Use when creating ViewModels, implementing ViewState pattern, or adding state management for features. Delegates to /usecase for domain use cases and to /feature for Container/Feature wiring.

Testing patterns and conventions. Use when writing unit tests, using Swift Testing framework, or following Given/When/Then structure.

Creates DataSources for data access. Use when creating RemoteDataSource for REST APIs or GraphQL, MemoryDataSource for in-memory storage, LocalDataSource for UserDefaults persistence, or DTOs for API responses.

Project organization and directory structure. Use when creating features, organizing files, or understanding the codebase layout.

Manages Tuist configuration. Use when adding xcframeworks, configuring dependencies, or modifying Project.swift.

Detects and removes unused code using Periphery. Use when cleaning up dead code, removing unused functions, or maintaining code hygiene.

Creates Snapshot Tests for SwiftUI Views using ChallengeSnapshotTestKit. Use when creating visual regression tests for views with DSAsyncImage support.

Manages localization and shared resources. Use when adding localized strings, working with String extensions, adding translations, or configuring the Resources module.

Code style and formatting rules. Use when writing code, naming types, or fixing SwiftLint issues.

Integrates Tuist into an existing iOS project that uses SPM local packages. Use when migrating a project from a manually maintained .xcodeproj to a Tuist-generated project, adding Tuist as an orchestration layer on top of SPM. Covers 8 sequential phases — audit, base structure, helpers, generation, schemes, CI, cache, and validation. Includes automation scripts and AI prompt templates for each phase.

UI tests with Robot pattern. Use when creating UI tests, implementing Robot classes, or adding accessibility identifiers.

Creates UseCases that encapsulate business logic. Use when creating use cases, implementing domain rules, validations, or coordinating multiple repositories. For any repository-related needs (domain models, errors, contracts, mappers, repository implementations), delegate to the /repository skill.

Atomic Design System for SwiftUI. Use when creating UI components, applying design tokens (colors, typography, spacing), or building consistent user interfaces.

Creates SwiftUI Views with ViewModel integration. Use when creating views, integrating with ViewModels, adding SwiftUI previews, implementing state rendering, or setting up accessibility identifiers and localized strings.

Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Claude's capabilities with specialized knowledge, workflows, or tool integrations.