T4-R5 in five minutes
Every factual sentence needs a passage or a refusal.
A citation the index did not return is not a citation.
OWASP's LLM project lists risks including overreliance and sensitive data. Read the current list before you treat a version as final.
Refusal is a successful output when the notes are silent.
This lab invents no customer story.
The worked example is a library card, not a person. If the card lacks a due date, the answer is that the card lacks it.
Sources and go deeper
- OWASP Top 10 for Large Language Model Applications community last checked 2026-10
- Lewis and co-authors, Retrieval-Augmented Generation for Knowledge-Intensive NLP Tasks, 2020 paper last checked 2026-10
- Retrieval-augmented generation — Wikipedia wikipedia last checked 2026-10