book-to-skill turns technical PDFs and other structured documents into reusable agent skills that can be loaded on demand in tools like Claude Code, GitHub Copilot CLI, and Amp.
This is a Python-based tool for converting a book, document folder, glob, or file list into a unified agent skill. The generated skill is organized into a core SKILL.md plus supporting chapter, glossary, pattern, and cheatsheet files, so the material is easier for an agent to consult while you work. The repository says it follows the open Agent Skills standard and can be used across supported hosts.
It addresses the gap between reading a technical book once and being able to reliably use that knowledge later inside an AI-assisted workflow. The README describes common failure modes: searching a PDF returns pages instead of answers, asking an agent can lead to hallucinations or missing context, and handwritten notes often become unwieldy and unused. The goal is to make recurring reference material accessible without repeatedly dumping the whole document into context.
Conceptually, the tool first extracts and cleans text plus metadata from the source material, then uses a spec-driven generator to structure that content into a skill. The skill includes a compact overview and per-chapter files that are loaded only when needed, so the agent can read the relevant section instead of the whole source. The README also states that the process is designed to preserve structure and decision rules rather than produce a simple summary.
It is gaining attention because it sits at the intersection of AI coding assistants, reusable knowledge, and the Agent Skills standard. The repository reports a large week-over-week star increase, and its pitch is easy to understand: convert dense reference material into something an agent can consult directly during work. Its token-efficiency claim, backed in the README by real-book measurements, likely adds to the appeal for people trying to reduce context costs.
The README itself points to a few comparison points: manually searching PDFs, asking an agent without preparing the source, and keeping long personal notes. As a more direct technical alternative, the project explicitly relies on the open Agent Skills standard and mentions use with GitHub Copilot CLI, Amp, and Claude Code rather than presenting itself as a replacement for those hosts. Beyond that, the README does not name specific competing repositories or tools.
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