RIBs is a mobile architecture framework that structures applications around isolated, lifecycle-managed units of business logic called RIBs. Each RIB separates routing, business logic, and construction into distinct classes through the Router-Interactor-Builder pattern, with hierarchical dependency injection scoping dependencies per node and static analysis enforcing architectural rules at build time.
The framework enforces automatic disposal of Rx subscriptions scoped to interactor lifecycles, blocking compilation when subscriptions lack proper disposal to prevent memory leaks. It supports viewless business logic nodes that manage routing and state independently from the view hierarchy, allowing deep logic scopes with shallow view trees. A workflow engine models multi-step navigation sequences as chains of asynchronous steps that traverse the component tree, handling deep link parsing, validation, and conditional waiting.
RIBs provides IDE-integrated scaffolding tools that generate boilerplate components and test stubs from templates for both iOS and Android, with cross-platform architecture synchronization keeping implementations aligned between platforms. The framework includes build-time static analysis that enforces null safety and structural constraints, along with generated helpers and mocks for unit testing interactor listener calls and router method invocations without device dependencies.