K81R split end-to-end answer quality into corpus, retrieval, evidence, generation, and verification stages so improvements could not conceal new failure modes.
#search
K81R named the corpus, parser, passages, lexical analyzer, embedding model, and ranking policy behind every result and answer.
K81R applied access scope to lexical and semantic candidates before ranking so restricted material never entered snippets, facets, caches, or model context.
K81R turned insufficient evidence into an investigative interface showing available sources, missing relationships, contradictions, and narrower questions.
K81R combined lexical and semantic ranks without pretending their raw relevance scores shared one calibrated meaning.
Fixed token slices detached exceptions, headings, code, and table labels, so K81R rebuilt retrieval units from authored structure and source lineage.
K81R's polished mistake turned retrieval, evidence lineage, answerability, and refusal into core product behavior.
K81R's embedding search missed codes, project names, and rare technical phrases, so hybrid retrieval preserved literal evidence instead of treating it as an old-fashioned fallback.
K81R treated direct search and evidence inspection as complete outcomes instead of hiding every useful result behind generated prose.