playground vs book-to-course
playground is a plugin bundle for AI coding tools published by Anthropic. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-official). book-to-course is a plugin bundle for AI coding tools published by Sebastian Haba. Marketplaces we read that list it: 1 (Community GitHub marketplaces). As of our marketplace pass on 2026-11-11. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace | ||
|---|---|---|
| Claude Code: claude-plugins-official | Listed Version: not stated Forks (GitHub): 4 858 Stars (GitHub): 46 630 Not marked · First seen |
Not listed |
| Community marketplace sebastianhaba/book-to-course-skill | Not listed | Listed Version: 1.2.0 Forks (GitHub): 15 Stars (GitHub): 77 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | playground | book-to-course |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 46 630 (better) | 77 (worse) |
| Forks (GitHub) (differs) | 4 858 (better) | 15 (worse) |
| Last release | Not published | Not published |
| Where it runs | Installs as a plugin bundle | Installs as a plugin bundle |
| Transport | Not stated | Not stated |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | 1 | 3 |
| Licence (differs) | Not stated | MIT |
| Repository (differs) | github.com/anthropics/claude-plugins-official | github.com/sebastianhaba/book-to-course-skill |
| Changes in the last 7 days (differs) | 0 | 2 |
| First seen (differs) | 2026-10-11 | 2026-11-05 |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
playground
Creates interactive HTML playgrounds — self-contained single-file explorers with visual controls, live preview, and prompt output with copy button. Includes templates for design playgrounds, data explorers, concept maps, and document critique.
book-to-course
Turn a book or document (EPUB, PDF, HTML, DOCX, Markdown, TXT) into an interactive, beginner-friendly course delivered as a local web page; plus course-to-apk (offline Android app, APK) and course-to-appimage (Linux desktop app, AppImage).
How to run each
playground As a Claude Code plugin
/plugin install playground@claude-plugins-officialbook-to-course As a Claude Code plugin
/plugin marketplace add sebastianhaba/book-to-course-skill
/plugin install book-to-course@book-to-courseCommands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: playground · What it can do: book-to-course · Compare two other plugins
Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-official/blob/HEAD/.claude-plugin/marketplace.json. Data comes from public marketplace files in GitHub repositories of their authors. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.