The Agent-Skills Supply Chain Is Real: book-to-skill (19.7K Stars) Turns Any Technical PDF Into a Claude Code Skill, and Google Now Ships Its Own Skills Repo (17.5K)
Two repos trending together on 2026-08-09 show 'skills' becoming a distributable artifact rather than a per-project prompt folder: virgiliojr94/book-to-skill (MIT, Python, 19,743 stars, created 2026-05-01) converts a technical book PDF into a Claude Code skill 'ready to study, reference, and use while you work' and gained ~644 stars that day, while google/skills (Apache-2.0, 17,512 stars, created 2026-03-31) packages agent skills for Google products and gained ~481. addyosmani/agent-skills, 'production-grade engineering skills for AI coding agents,' sits at 85,481 stars. For anyone maintaining a skills directory, the practical shift is that skills are now something you ingest and vendor — with all the provenance and injection questions that implies.
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