A Beginner’s Guide to Getting Started with add_messages Reducer in LangGraph

DEV CommunityFriday, October 31, 2025 at 8:35:32 AM
If you're diving into LangGraph and its reducers, you'll quickly realize that the add_messages reducer is essential for managing your AI's memory. This powerful tool updates conversation history every time a message is sent or received, ensuring everything stays in sync. Understanding how to effectively use add_messages can significantly enhance your AI's performance and user interaction, making it a crucial component for anyone looking to build intelligent applications.
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