Gives Claude access to 10 academic databases through their REST APIs: PubMed, PMC, bioRxiv, medRxiv, arXiv, OpenAlex, Crossref, Semantic Scholar, CORE, and Unpaywall. You can search for papers by topic, look up DOIs or PMIDs, pull citation graphs, find open access PDFs, grab full text, or search by author. The skill includes a decision matrix that maps your query to the right database combination, so asking for "CRISPR papers with PDFs" hits PubMed for discovery and Unpaywall for open access links. Most databases work without auth, though a few like NCBI and CORE run faster with API keys. The instructions are thorough about identifier formats, rate limits, and cross-database workflows. Good for literature reviews or pulling research without leaving the editor.
npx skills add https://github.com/k-dense-ai/scientific-agent-skills --skill paper-lookup