Semantic And Logical Routing With Runnablebranch

Everything you need to know to build your own RAG application

Unique: Uses LangChain's RunnableBranch to declaratively define conditional routing logic without imperative control flow, enabling runtime inspection and modification of routing conditions

vs others: More maintainable than hard-coded if-else routing, and more transparent than learned routing models because conditions are explicit and auditable

via “conditional-branching-and-routing”