Search Science Literature · petar-nauka bundle Use when Codex must search, validate, rank, or synthesize scientific literature using open scholarly APIs and optional credentialed Web of Science Starter API. Trigger for literature reviews, state of the art, related work, newest papers, DOI/PMID/author/source-title checks, citation-aware reading lists, systematic-review starter sets, open-access discovery, "литературен преглед", "научни статии", and Web of Science metadata/times-cited validation. Accepts Bulgarian or English and must not invent papers, DOIs, venues, or metrics.