This pulls structured knowledge out of non-fiction ebooks with full citation traceability to source chapters. You get two modes: concept extraction for ideas organized by abstraction level (principles down to tactics), and entity extraction for things that recur across books like frameworks, studies, and researchers. The entity mode is designed for building a cross-referenced knowledge base where you can track how the same research or framework gets used in multiple books. Every extraction must be traceable, which means you'll extract less but actually be able to cite it later. Includes tooling for entity resolution and index generation. Best for serious readers building a reference library rather than casual note-taking.
npx skills add https://github.com/jwynia/agent-skills --skill ebook-analysis