Create Swift UseCase objects with protocol-based repository injection and execute methods.
npx skills add https://github.com/vjr2005/Challenge --skill usecase
Please help me install this Agent Skill. Skill: usecase Source: https://github.com/vjr2005/Challenge/tree/main/.claude/skills/usecase Command: npx skills add https://github.com/vjr2005/Challenge --skill usecase
Create UseCase objects that encapsulate business logic and coordinate domain rules across repositories, following Clean Architecture to improve testability and maintainability.
Create a new UseCase by defining a contract with an execute method, implement the UseCase with an injected repository, and add unit tests for delegation and error handling.
High-intent search queries and answers about installing and using this skill.
You encapsulate business logic in Swift by creating UseCase objects that coordinate domain rules across repositories. Each UseCase handles a single operation via an execute method, ensuring testability and maintainability for iOS projects.
UseCases for multi-repository coordination in iOS are structured by injecting multiple repository protocols into a single UseCase. This allows the UseCase to aggregate data and validate scenarios across different data sources before returning the result.
The best way to make Swift UseCases testable is by defining repository contracts with protocols and injecting mock implementations. This allows unit tests to verify delegation, error handling, and validation logic without hitting real data layers.
Yes, this Clean Architecture UseCase approach is specifically designed for iOS/Swift projects implementing MVVM. UseCases sit between the ViewModels and repositories, centralizing domain rules and keeping network requests separate from presentation logic.
You should use a single execute method in a Swift UseCase to maintain Single Responsibility Principle. This restricts each UseCase object to one specific operation like Get, Refresh, or List, making domain logic easier to read and test.
You need repository injection via protocols for Swift UseCases to decouple business logic from data sources. This dependency inversion allows you to swap real repositories with testable mocks during unit testing without changing the UseCase implementation.
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