A sophisticated multi-agent system using LangChain and LangGraph to automate blog post generation, from planning and research to drafting.
The Multi-Agent Blog Writer is an AI system built with LangChain and LangGraph that takes a single topic and autonomously produces a finished blog draft—handling planning, research, and writing without manual intervention. A LangGraph workflow orchestrates three specialized agents: a Planner that turns the topic into a detailed outline and research tasks, a Researcher that decides when to invoke a Google Search tool to gather information, and a Writer that synthesizes the plan and findings into a complete draft. A dedicated Tool Node executes searches and feeds results back to the Researcher in a loop. As the AI/ML engineer, Rohan designed the LangGraph state machine, built and integrated each agent, configured the Google Custom Search API, and set up the local deployment.