Retrieval-Augmented Generation (RAG), Large Language Models (LLMs), Apis, FastAPI, Python, LangChain, Agentic AI frameworks, Prompt engineering, Microsoft Foundry, Embedding, Access controls, Reranking, LangGraph, Document ingestion, Hybrid search, Google Antigravity, Google Vertex AI, Microsoft Copilot, Multi-agent workflows, Security governance, Observability, Monitoring