viper-architecture-rambler

SKILL.md

VIPER enforces Single Responsibility Principle through five protocol-based components: View, Interactor, Presenter, Entity, Router. Created and documented by Rambler&Co iOS Team.

Core Principle: Entities never reach the Presentation layer. Simple data structures transfer between Interactor and Presenter, preventing business logic pollution in UI.

| Component | Responsibility | What It Must NOT Do |

Use when architecting complex iOS apps with multiple features, long-term maintenance requirements, or team scalability needs. Use when refactoring Massive View Controllers or implementing testable architecture. Do NOT use for simple single-screen apps, rapid prototypes, or small utility tools. Source: dagba/ios-mcp.

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