How do I install the Calibre skill?

Run npx skillmds@latest add correctroadh/calibre in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Calibre safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Calibre?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Calibre free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Calibre?

correctroadh (@correctroadh) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Calibre by correctroadh — Agent Skill

Name: Calibre
Author: correctroadh

Calibre

Convert ebooks between formats (EPUB, MOBI, PDF, AZW3, etc.) using Calibre's ebook-convert CLI. Use when the user wants to convert book files, prepare files for Kindle (.mobi), produce PDFs from ebooks, or batch-convert a folder of books. Triggers on "convert to mobi/pdf/epub", "kindle 格式", "转换电子书", "tomobi", "topdf".

correctroadh 0e1ae57 2 files · 3.6 KB Updated Sep 17, 2026

File contents

Calibre Ebook Conversion

ebook-convert (ships with Calibre) is the atomic command; don't wrap it in a script unless you need something genuinely more than one line. This skill is documentation + a couple of reusable command patterns.

Prerequisite

command -v ebook-convert || echo "Install Calibre and make sure ebook-convert is on PATH"

If ebook-convert isn't on PATH, resolve it per-platform (macOS app bundle, Linux package, Windows install dir) — don't hardcode a symlink path in the skill.

Core command

ebook-convert INPUT OUTPUT [options]

Format is inferred from the output extension.

ebook-convert novel.epub novel.mobi         # → Kindle
ebook-convert novel.epub novel.pdf          # → PDF
ebook-convert novel.mobi novel.epub         # → EPUB
ebook-convert novel.epub novel.azw3         # → AZW3

Batch convert

Bash one-liner — parallel, one output per input, same basename:

for f in *.epub; do ebook-convert "$f" "${f%.*}.mobi" & done; wait

Replace *.epub and .mobi with your source glob and target extension.

Kindle-tuned conversion

ebook-convert in.epub out.mobi \
  --output-profile kindle_pw3 \
  --mobi-file-type both \
  --no-inline-toc

Other useful flags:

--cover path/to/cover.jpg — override cover image
--authors "Name" / --title "..." — set metadata
--margin-left/right/top/bottom 20 — for PDF output
--pdf-page-numbers — for PDF output

Full reference: ebook-convert --help or ebook-convert in.epub out.mobi --help (format-specific options show up after the filenames).

---name: calibredescription: Convert ebooks between formats (EPUB, MOBI, PDF, AZW3, etc.) using Calibre's ebook-convert CLI. Use when the user wants to convert book files, prepare files for Kindle (.mobi), produce PDFs from ebooks, or batch-convert a folder of books. Triggers on "convert to mobi/pdf/epub", "kindle 格式", "转换电子书", "tomobi", "topdf".---# Calibre Ebook Conversion`ebook-convert` (ships with Calibre) is the atomic command; don't wrap it in a script unless you need something genuinely more than one line. This skill is documentation + a couple of reusable command patterns.## Prerequisite```bashcommand -v ebook-convert || echo "Install Calibre and make sure ebook-convert is on PATH"```If `ebook-convert` isn't on PATH, resolve it per-platform (macOS app bundle, Linux package, Windows install dir) — don't hardcode a symlink path in the skill.## Core command```bashebook-convert INPUT OUTPUT [options]```Format is inferred from the output extension.```bashebook-convert novel.epub novel.mobi # → Kindleebook-convert novel.epub novel.pdf # → PDFebook-convert novel.mobi novel.epub # → EPUBebook-convert novel.epub novel.azw3 # → AZW3```## Batch convertBash one-liner — parallel, one output per input, same basename:```bashfor f in *.epub; do ebook-convert "$f" "${f%.*}.mobi" & done; wait```Replace `*.epub` and `.mobi` with your source glob and target extension.## Kindle-tuned conversion```bashebook-convert in.epub out.mobi \ --output-profile kindle_pw3 \ --mobi-file-type both \ --no-inline-toc```Other useful flags:- `--cover path/to/cover.jpg` — override cover image- `--authors "Name"` / `--title "..."` — set metadata- `--margin-left/right/top/bottom 20` — for PDF output- `--pdf-page-numbers` — for PDF outputFull reference: `ebook-convert --help` or `ebook-convert in.epub out.mobi --help` (format-specific options show up after the filenames).

Frequently asked questions