
LangChain Cheatsheet ⚡
LangChain is one of the most popular frameworks for building LLM-powered apps, RAG workflows, chatbots, and AI agents.
This cheatsheet breaks down the key ideas:
Core concepts → LLMs, prompts, chains, agents
RAG workflow → load, chunk, embed, retrieve, generate
Vector databases → FAISS, Chroma, Pinecone, Weaviate
Memory types → conversation buffer, summary, window, vector memory
Agent basics → choose tools, call actions, return answers
Best practices → clear prompts, safe tools, structured outputs
The simple idea:
LangChain helps you connect LLMs + data + tools + memory into useful AI applications.
Save this if you are learning AI app development, RAG, or agent workflows.

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