book-to-skill converts technical books or PDFs into Claude Code skills by compiling the source once and loading only requested chapters, avoiding the ~200K-token cost of dumping full PDFs. It provides per-chapter summaries, a glossary and cheatsheet for named frameworks, and uses Docling to keep tables, formulas, and code as Markdown; the project is fully open source.
Dumping a raw PDF into Claude can cost roughly ~200K tokens before any question is asked.
You can now turn any technical book or document into a Claude Code skill 🤯
Dumping the raw PDF into Claude costs ~200K tokens before you ask a single question. book-to-skill compiles the book once, then loads only the chapter you need.
→ Per-chapter summaries pulled from the source
→ Glossary + cheatsheet of named frameworks
→ Docling keeps tables, formulas, and code as markdown
100% Open Source.