2. Intelligent Routing

Definition

A pattern that branches and distributes work to the optimal path according to the request among various agents/tools.
It plays a key role in multi-agent systems and orchestration.

Key Features

• Intelligent Distribution : Selection of the optimal agent/tool through input analysis
• Conditional Logic : Decision-making based on input type or content
• Multi-stage Filtering : Hierarchical routing structure for complex task classification
• Efficiency Enhancement : Optimally utilize the strengths of specialized agents/tools

Framework Support

• LangChain, LangGraph, Google ADK support routing.

Implementation Method

• LLM-based Routing: Category classification of natural language input (e.g. order lookup, technical support, etc.)
• Embedding-based Routing: Matching to the appropriate path using semantic similarity
• Rule-based Routing: Decision-making based on explicit rules/conditions
• Machine Learning-based Routing: Specifying the optimal path based on a trained classifier

Routing Structure

Simple Implementation Example