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Magnus Hedemark
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Each README is written for a human audience, explaining: - What the skill does (not what format it follows) - What benefit the user gets from installing it - Quick setup and usage patterns - When to load/trigger the skill - What scripts, references, and templates it ships data-scientist already had a README — left unchanged. 48 READMEs added across all skill and bundle directories.
EPUB — Ebook Creation, Extraction & Enrichment
Expert-level EPUB handling for reading, writing, editing, and extracting knowledge from EPUB2 and EPUB3 files. Ships a CLI tool and five detailed references.
Why Install This Skill
When your agent loads this skill, it becomes an ebook format specialist who can:
- Inspect EPUB structure — see manifest, spine, TOC, metadata
- Extract clean text — per-chapter or single-file, stripped of boilerplate
- Edit EPUBs non-intrusively — metadata, chapters, spine, CSS — without breaking the file
- Create valid EPUBs from scratch — scaffold new ebooks
- Extract knowledge with LLM mode — facts, quotes, definitions, arguments via configurable LLM
- Convert EPUB2 to EPUB3 — add NAV, update namespace, keep NCX compatibility
- Batch process hundreds of EPUBs — wrap any script across file globs
- Validate against the spec — EPUBCheck or Python fallback
What You Get
| Directory | Purpose |
|---|---|
SKILL.md |
Decision table mapping tasks to scripts, EPUB format essentials |
scripts/ |
10 Python CLI scripts: info, text, scaffold, edit, images, batch, convert, validate, extract-knowledge |
references/ |
8 reference files: format internals, Python libraries, spec/validation, tutorials, fixed-layout, accessibility, media overlays |
Triggers
Load this when you encounter EPUB files — to read, create, edit, extract, convert, or validate them.
Requirements
Python 3.8+ with EbookLib. Optional: beautifulsoup4, epublib, Java (for EPUBCheck), and an LLM endpoint for knowledge extraction.