Understand the mechanism

Ingest and chunk sources, embed/index, rewrite/retrieve/rerank, pack prompt with citations, generate, validate support.

Read the RAG pipeline stages path as a pipeline for the vacation-policy Q&A. At each stage, name the representation, the owner, and how information can be lost. Identifiers must mark prompt versions, model versions, indexes, and policies so “randomness” is not the default explanation for every bug in RAG pipeline stages.

if 18 of 20 test questions retrieve at least one relevant chunk in top 5, recall@5 = 18/20 = 0.90 Scoped specifically to RAG pipeline stages / vacation-policy Q&A / mechanism.

Keep the unit and the denominator visible when you discuss RAG pipeline stages. A percentage without a base, or a latency without a percentile, hides the failure mode this chapter cares about on the vacation-policy Q&A.

Learned stages estimate; deterministic stages enforce. A fluent result from the vacation-policy Q&A does not prove RAG pipeline stages used the right evidence. Preserve intermediates when privacy allows—candidate lists, traces, scores, citations—so you can see the first broken stage in the RAG pipeline stages path.

Operational correctness for RAG pipeline stages includes deadlines on the vacation-policy Q&A. If stages that feed this workload sum past the user’s patience, trim earlier—usually pack less, retrieve less, or parallelize—before blaming the model vendor for RAG pipeline stages. Mechanism diagrams that ignore time are incomplete.

Also pin one numeric memory from this RAG pipeline stages chapter: if 18 of 20 test questions retrieve at least one relevant chunk in top 5, recall@5 = 18/20 = 0.90 That number is not decoration; it is a template for how claims about RAG pipeline stages on the vacation-policy Q&A should look in design docs. Scoped specifically to RAG pipeline stages / vacation-policy Q&A / mechanism.

People confuse RAG pipeline stages with neighboring buzzwords when debugging the vacation-policy Q&A. Before changing prompts, ask whether the broken stage was evidence gathering, the RAG pipeline stages judgment itself, validation, or the product action. Fixing the wrong stage creates folklore (“we tried RAG pipeline stages and it failed”) that blocks the next team on the vacation-policy Q&A. Scoped specifically to RAG pipeline stages / vacation-policy Q&A / mechanism.

Write a five-line artifact for this page: goal, inputs, check, owner, stop rule. Invent one fluent failure that the check would catch. Keep details specific to rag pipeline steps rather than generic AI advice.