Overview
Query → embed → top-k → stuff into prompt → generate.
Why it matters
This is the loop you'll see in every tutorial. Knowing it cold lets you spot exactly where the more advanced patterns (GraphRAG, re-ranking) plug in.
Where this sits in the stack
The naïve RAG loop is one of the load-bearing decisions in a KG/RAG/agent system: choices made here propagate to retrieval quality, agent reliability, cost per query, and the on-call burden of whoever ships it. Teams that name this trade-off explicitly ship faster than teams that leave it implicit.