What problem does it solve? Adding defensible citations to academic manuscripts is slow and error-prone: claims must be isolated, relevant papers found within strict journal scopes, and reference metadata exported without missing or malformed author fields. This Skill automates that pipeline from raw text to an importable reference file. ## Core Features & Use Cases - Claim Segmentation and Search: Splits manuscript passages into stable claim units (S001, S002...), builds English search queries, and searches Crossref and PubMed restricted to Nature Portfolio, the Science family, and Cell Press titles. - Conservative Support Grading: Labels each candidate as strong, partial, background, limiting, or metadata-only support, and never treats a title match as evidence without abstract or publisher-page checks. - Reference-Manager Export with Author Integrity Gate: Exports RIS (default), ENW, or Zotero RDF, blocking records with missing, surname-only, or incomplete author metadata and refetching by PMID when needed. - Use Case: Paste an introduction paragraph and ask for Nature-series citations from the last five years; receive a segment-to-reference mapping table, an interactive HTML browser for filtering candidates, and a references.ris file ready for EndNote import. ## Quick Start Use the nature-citation skill to split this manuscript paragraph into claims, find supporting Nature/Science/Cell papers from the last five years, and export the results as a RIS file for EndNote.