011 GitHub stars
02Advanced graph architecture patterns including Orchestrator-Worker and Evaluator-Optimizer
03Comprehensive memory management with checkpointers and long-term state persistence
04Human-in-the-loop integration for manual approval flows and intervention
05Specialized langgraph-engineer subagent for modular, parallel module implementation
06Curated reference for LLM model IDs across Google Gemini, Anthropic, and OpenAI