#langgraph

• 19 May 2026 · Study

  LangChain · LangGraph

  LangGraph models an application as a state machine: typed state, nodes that update it, and conditional edges, used here to build a small corrective-retrieval loop that rewrites the query when retrieval looks weak.

• 20 Apr 2026 · Projects

  Built this: Enterprise Agentic RAG Orchestrator (Multi-Agent-RAG)

  A Supervisor → Worker → Validator multi-agent RAG system with LangGraph Corrective RAG, hybrid dense + BM25 retrieval with cross-encoder reranking, a Qdrant semantic cache and a security layer.

• 7 Aug 2024 · AI updates

  LangGraph 0.2: pluggable checkpointers for durable agents

  LangGraph v0.2 split state persistence into dedicated checkpointer libraries (in-memory, SQLite and an open-sourced Postgres version) for session memory, error recovery and human-in-the-loop.