Tools/Leutenegger/book-to-skill

book-to-skill

Turn any technical book PDF into a Claude Code skill — ready to study, reference, and use while you work.

1.0kemergingPythonMIT Licensenew this week

The Lens

By Erik Loyd, SaaS CEO and former COO/CFO of an AWS Premier Partner.

Updated Aug 2026

Feed it a technical book and it hands back a skill your coding agent can actually search. The pitch is token economy: instead of dumping 400 pages into context and paying for every one of them, the generated skill loads only the chapters relevant to the question. The project claims 24x to 51x fewer tokens per answer. MIT licensed, runs entirely on your machine, no API key.

Setup is three commands: pip install, register the skill, point it at a file. Format support comes through optional dependencies, so PDFs want pdftotext or pypdf and EPUBs want ebooklib. Nothing gets uploaded. Output works with Claude Code, GitHub Copilot CLI, and Amp.

The obvious use is reference material your agent keeps guessing about: language specs, framework books, internal standards documents. Solo and small teams: free, and no reason not to try it on one book first. Medium and large teams get more out of converting shared internal docs once and committing the result.

The catch is legal, not technical. The MIT license covers the converter, not the book you put through it. Turning a purchased title into a skill you commit to a shared repo is redistribution, and the tool will happily let you do it. The other limit is mechanical: a scanned image-only PDF has no text to extract.

Free vs Self-Hosted vs Paid

fully free

What's Free

Everything. MIT license, Python package, optional GUI. No API key, no account, no metered step. Extraction and generation both run locally.

Deployment Cost

$0. This is a local CLI. It runs on the laptop you already have, and the output is plain markdown files you commit to a repo.

The Real Cost

The books. The tool is free; the reference material you feed it usually is not, and licensing that material for team-wide use is your problem to solve, not the tool's. Add an hour or two per source for dependency setup and checking that the chapter split came out sane.

The Savings Case

If the alternative is pasting a large document into context on every question, the token math is the whole argument. A single 400-page book in context repeatedly is real money on a metered API; the skill format reads only what it needs.

Free and open source with no metered step at all. The only real cost is licensing the source material you convert.

What to do by team size

Solo
free; convert one book and see if the chapter split holds up
Small team
free; commit the generated skills so the whole team shares them
Medium team
free; best value is converting internal standards docs, not published books
Large team
free; check with legal before committing converted commercial titles to a shared repo
Self-hosting ops:trivial

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Score
68/100 · B
Adoption13/30
Maintenance25/25
Community5/20
License15/15
Analysis10/10

A low score is not a verdict on quality. Young and niche tools start low by design. How we calculate scores

License: MIT License

Use freely, including commercial. Just keep the license.

Commercial use: ✓ Yes

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