AI agents are emerging as autonomous problem-solving entities capable of executing complex, multi-step tasks and adapting dynamically to new information, drastically changing human interaction with technology. These agents utilize machine learning, rule-based systems, and versatile capabilities such as managing apps, conducting financial transactions, and controlling devices, thus reshaping intelligent automation. The post introduces LangGraph, an open-source tool designed for building AI agents, offering granular control over workflows by creating a graph with components like State, Node, Tools, Edge, and Conditional Edges. It provides an example of an Email Agent that autonomously processes unread emails, determines the context, drafts responses, and ensures quality through automatic proof-reading, leveraging retrieval-augmented generation (RAG) systems. The workflow demonstrates how LangGraph structures the agent's tasks and decision-making processes, emphasizing the importance of effective context retrieval and the potential for future enhancements such as human-in-the-loop and memory retention.