#llm-orchestration

Build AI agents with LangChain. Components: 1. LLM wrapper (OpenAI, Anthropic, local). 2. Prompt templates with variables. 3. Chains for sequential operations. 4. Agents with tool selection. 5. Memory for conversation context. 6. Vector stores for embeddings. 7. Document loaders and splitters. 8. Output parsers for structured data. Use LCEL (LangChain Expression Language) for complex flows and implement human-in-the-loop patterns.