What problem does it solve? Manuscripts and theses often contain incorrect reference metadata—wrong authors, mismatched page numbers, DOIs pointing to different papers, or volume-year conflicts—that can trigger reviewer criticism or desk rejection. Manually checking dozens of citations against multiple databases is slow and error-prone. ## Core Features & Use Cases - Multi-source cross-verification: Compares each reference's authors, title, year, volume, issue, pages, and DOI against Crossref, IEEE Xplore, CNKI/Wanfang, web search, and local Zotero libraries. - Severity-graded reports: Classifies discrepancies as Critical (must fix), Warning (check suggested), or Info, and outputs Markdown reports, BibTeX patches, or Zotero update instructions. - Batch and single-citation modes: Parses full bibliographies, single pasted citations, BibTeX files, or Zotero item keys, with parallel sub-agent batching for lists over 20 entries. - Use Case: Before submitting a paper, paste its 50-entry reference list and receive a table marking 4 entries that must be fixed (e.g., a DOI resolving to the wrong paper) plus a corrected .bib file. ## Quick Start Use the nature-ref-verifier skill to check every reference in my manuscript's bibliography and report which entries must be corrected.