Week 10 — Lesson 5: Retrieval chains, grounding and verification

2 min

In Week 9 you stored the six NorthPeak manuals in Chroma and retrieved chunks by similarity. In Week 8 you saw the model invent facts about M099. A retrieval chain joins the two: the retrieved chunks become the context, the system message forbids anything else, and your code checks that the model obeyed. This lesson gives the guard sentence, the shape of the chain, and five questions asked against the manuals.

Grounding and the guard sentence

In Week 9 you stored the six manuals in Chroma and retrieved chunks by similarity. In Week 8 you saw the model invent facts about M099. Grounding joins the two: the retrieved chunks go into the prompt as context, and the system message forbids anything else.

Preview — the rest of the lesson is for enrolled readers.

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This lesson is part of the “Week 10 — Local LLMs and LangChain” module

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