AI Agent Patterns - Basic responder agents primarily generate text responses [1] - Router pattern agents determine the appropriate path to take based on input [2] - Tool calling agents select and execute specific tools to accomplish tasks [3] - Multi-Agent pattern manages and coordinates multiple agents to achieve a common goal [4] - Autonomous pattern agents operate fully independently without direct human intervention [5]

Core Concept - Router pattern involves human definition of paths/functions in a flow [1] - LLM makes basic decisions on function or path selection [1]