book.update_content
SkillDev toolsUpdate the content of a book given the changes in the corresponding source content
Available today. Use it from your connected AI after setup.
No other account needed.
Connect ahel once, and every AI you use reads what you have installed.
Then ask your AI: use the book.update_content skill
What this skill tells your AI
The instructions your AI receives, as published by causify-ai/helpers in .claude/skills/book.update_content/SKILL.md and read by ahel’s review.
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Given the content of a book in the form of a markdown or tex file
<TARGET>and a source file<SOURCE>, find and incorporate the changes from<SOURCE>into<TARGET> -
The file
<SOURCE>contains a header with the last version, in terms of Git hash and timestamp, of the material used to generate the current version of<TARGET>- E.g.,
% git_hash=<GIT_HASH>, timestamp=<TIMESTAMP> % <SOURCE> - E.g.,
% git_hash=f15bc6b9, timestamp=2026-07-15 14:41:12 EDT % book_springer/lectures_source/Lesson02.1_From_Data_Science_To_Decision_Science.txt
- E.g.,
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Find what changed in
<SOURCE>from<GIT_HASH>to now, and modify<TARGET>to incorporate those changes -
Follow the same style as
<TARGET>(e.g., read the corresponding.claude/skills/*.rules.md)
Signals
- GitHub stars
- 145
- Forks
- 159
- Last commit
- Sep 2026
Advanced
- Catalog kind
- skill
- Gateway key
book-update-content- Source
- github.com/causify-ai/helpers