Search semantically, then fetch the section
accession, section_key, source_url, char_start, char_end, and highlighted_snippet. Record those fields with requestId, then fetch the selected section before quoting or summarizing its language.
Retrieval routes
hybrid is the default semantic mode. Scope a query with ticker, CIK, form, accession number, filing date, fiscal year, or filing year when the research needs a bounded corpus.
Citation quality and availability
Citation spans and highlighted snippets can be unavailable. When_citation_degraded is present, keep the accession and section identity and retrieve the source rather than relying on the excerpt. Full-text search requires its configured search capability; semantic search also depends on vector search. An unavailable dependency can return 503, not an invented match.
Ranking helps retrieval. It does not prove a result is complete, material, legally dispositive, or the best interpretation of a disclosure.

