Book to Skill
A third-party skill by virgiliojr94. Point it at a PDF, EPUB, DOCX, HTML, Markdown, text, or RTF file (MOBI, AZW, and AZW3 too, if you have Calibre). Claude runs a Python extractor, then writes a new skill from what the book teaches: named frameworks, principles, step-by-step techniques, and things to avoid. It is not a summary. You can also ask it to only analyze the book first, or to fold a new book into a skill you already made. It needs Python and shell access, and it writes the new skill into your skills folder. Some formats need optional Python packages. MOBI, AZW, and AZW3 need Calibre. Licensed MIT.
This skill hasn't been reviewed yet.
What it does
Turn a book or document into a Claude skill. It pulls out the frameworks, principles, techniques, and anti-patterns so Claude can use them while you work.
How to use this
Once it is installed, this skill picks itself up. You do not need to name it.
- Created by
- virgiliojr94
- Category
- Research
- Source
- View source
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Copy this prompt into your AI tool to install this skill
Install the "Book to Skill" skill from https://raw.githubusercontent.com/virgiliojr94/book-to-skill/526f362552562d88c1a8bbf8012d2cee93f831d5/SKILL.md. Read the SKILL.md there and follow it as a skill.SKILL.md, then in Claude go to Customize > Skills, click the + button, choose Create skill, then Upload a skill and pick the file. See Claude's help page.Not sure which? See the install guide.
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Book to Skill
A third-party skill by virgiliojr94. Point it at a PDF, EPUB, DOCX, HTML, Markdown, text, or RTF file (MOBI, AZW, and AZW3 too, if you have Calibre). Claude runs a Python extractor, then writes a new skill from what the book teaches: named frameworks, principles, step-by-step techniques, and things to avoid. It is not a summary. You can also ask it to only analyze the book first, or to fold a new book into a skill you already made. It needs Python and shell access, and it writes the new skill into your skills folder. Some formats need optional Python packages. MOBI, AZW, and AZW3 need Calibre. Licensed MIT.
Third-party, by virgiliojr94
September 19, 2026
Install for Claude Code (local)
Local Claude Code only. You need git and Python 3. Only install from the official repo, virgiliojr94/book-to-skill. The maintainer says a copy at Leutenegger/book-to-skill is malicious and not theirs. We have not checked that claim ourselves, so read the maintainer's notice linked below.
This skill is more than one file. It runs a Python script (scripts/extract.py) and a small Python package, so saving SKILL.md alone will not work. Clone the whole repo and check out the pinned commit (526f362). The skill runs Python through your shell and writes the new skill it makes into your skills folder. Claude Code will ask before it runs each. Licensed MIT.
- 1
Clone the official repo at the pinned commit
Use the official repo only. This puts the skill, the extractor script, and the Python package in place.
git clone https://github.com/virgiliojr94/book-to-skill ~/.claude/skills/book-to-skill && git -C ~/.claude/skills/book-to-skill checkout --detach 526f362552562d88c1a8bbf8012d2cee93f831d5 - 2
Check the commit and the files
The first command should print the full commit hash from the last step. If it prints anything else, the checkout failed. Do not use the skill. Then confirm both files are there.
git -C ~/.claude/skills/book-to-skill rev-parse HEAD # expect 526f362552562d88c1a8bbf8012d2cee93f831d5 ls ~/.claude/skills/book-to-skill/SKILL.md ~/.claude/skills/book-to-skill/scripts/extract.py - 3
Add Python packages for your format (optional)
Plain text and Markdown work without extras. For other formats, install the ones you need. The extractor can also offer to install missing packages when it runs.
pip install trafilatura # HTML pip install ebooklib beautifulsoup4 # EPUB pip install pypdf pdfminer.six # PDF pip install python-docx # DOCX pip install striprtf # RTF pip install docling # technical PDFs with tables and code - 4
Install Calibre for MOBI, AZW, and AZW3 (only if you need them)
These formats have no fallback. Install Calibre from calibre-ebook.com so the
ebook-convertcommand is on your PATH. - 5
Convert a book
Start Claude Code and ask it to turn a book into a skill. Add a name for the new skill if you like.
/book-to-skill ~/Books/my-book.pdf my-book - 6
Read the maintainer's security notice
The maintainer reports that a re-upload at
Leutenegger/book-to-skillis malicious. Do not install it. Read their notice.
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What's in this toolkit
This is a toolkit of multiple skills, each with its own SKILL.md. Open the source on GitHub to read the instructions for the skills you install.
A third-party skill by virgiliojr94. The pinned SKILL.md is the source of truth. This entry is a short summary.
It turns a book or document into a new skill. Claude reads the file with a Python script, then writes a skill that holds the book’s frameworks, principles, techniques, and anti-patterns. It works on PDF, EPUB, DOCX, HTML, Markdown, text, and RTF. MOBI, AZW, and AZW3 need Calibre.
It runs Python through your shell and writes the new skill into your skills folder. Some formats need optional Python packages. Install it from the official repo, virgiliojr94/book-to-skill, at the pinned commit. The maintainer reports that a re-upload at Leutenegger/book-to-skill is malicious. Licensed MIT.