Leutenegger/book-to-skill skill
Python tool that converts technical book PDFs into Claude Code skills, ready to study, reference, and invoke while working. 1,152 GitHub stars and 141 forks in 4 days since August 13, 2026. Parses PDF structure, extracts concepts, and outputs a SKILL.md that an agent can load and query mid-session.
What it does for you: YY's AXION skill library currently requires writing each skill by hand. book-to-skill converts any technical PDF, architecture book, or methodology document directly into a queryable Claude Code skill without manual extraction. Run it on any API documentation, framework guide, or book PDF and get a structured, searchable skill the next day. Directly extends the AXION canonical skill library without authoring time.
In practice: 1,152 stars in 4 days is an extraordinary signal for a single-purpose developer tool. Topics span agent-skills, claude-code-plugin, pdf-parser, and skill-generator, suggesting intentional design rather than an experimental one-day project. The creator cites daily use in their own workflow.
For: Both runtimes. Python tool invokable from any agent context; outputs a SKILL.md that loads in Claude Code, Codex, GitHub Copilot, and any skill-compatible runner.
Verdict: build now. 1,152 stars and 141 forks in 4 days confirms strong community validation. Directly extends AXION skill ecosystem without manual writing. Local Python, auditable, no external API calls required by the core tool.
Build #1 Leutenegger/book-to-skill: use the ai-implementation-build-intake skill to build this safely. Source: https://github.com/Leutenegger/book-to-skill. Save canonical skill/agent under AXION\Skills and AXION\Agents.
Source · 1,152 GitHub stars and 141 forks as of August 17, 2026; created August 13, updated August 16. Python implementation confirmed. Topics include claude-code-plugin, agent-skills, pdf-parser, pdf-tools, skill-generator. Four days of growth at this star rate is the strongest community signal in today's issue.