Say when nothing fits

How to do it

Return a score or the share of query words matched with each result. Drop results under a threshold you tune on the fixed query set. When nothing is left, answer "nothing fits" with a link to the page that lists every topic. Keep the answer text consistent with the results, so an answer never claims a match the list does not show. An agent trusts what it gets, so the doubt must be in the answer. The same idea for model answers is Say so when nothing relevant was found.

Examples

JavaScript example

const MIN_SCORE = 0.5;
export function answer(results, indexUrl) {
  const good = results.filter(result => result.score >= MIN_SCORE);
  return good.length ? { results: good } : { results: [], answer: 'Nothing on this site fits that question.', index: indexUrl };
}

Python example

MIN_SCORE = 0.5

def answer(results: list[dict], index_url: str) -> dict:
    good = [result for result in results if result["score"] >= MIN_SCORE]
    if good:
        return {"results": good}
    return {"results": [], "answer": "Nothing on this site fits that question.", "index": index_url}

How to check

Five queries on topics the site does not cover each return an empty result list and the "nothing fits" answer, with the index link.

Related rules

• AIF-23 Say so when nothing relevant was found in AI features