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Comparison

teachme vs rubber-duck

teachme is a plugin bundle for AI coding tools published by beret21. Marketplaces we read that list it: 1 (Community GitHub marketplaces). rubber-duck is a plugin bundle for AI coding tools published by centsandcode. Marketplaces we read that list it: 1 (Community GitHub marketplaces). As of our marketplace pass on 2026-10-16. 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

Where each is published
Marketplaceteachmerubber-duck
Community marketplace beret21/teachme Listed
Version: 0.3.1
Forks (GitHub): 2
Stars (GitHub): 7
Not marked · First seen
Not listed
Community marketplace centsandcode/rubber-duck Not listed Listed
Version: 0.1.5
Forks (GitHub): 0
Stars (GitHub): 15
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

teachme vs rubber-duck
Factteachmerubber-duck
Marketplaces that list it11
Stars (GitHub) (differs)7 (worse)15 (better)
Forks (GitHub) (differs)2 (better)0 (worse)
Last releaseNot publishedNot published
Where it runsInstalls as a plugin bundleInstalls as a plugin bundle
TransportNot statedNot stated
Tools it declaresNot publishedNot published
Environment variables it asks forNot publishedNot published
Parts of the bundle (differs)13
LicenceMITMIT
Repository (differs)github.com/beret21/teachmegithub.com/centsandcode/rubber-duck
Changes in the last 7 days22
First seen (differs)2026-10-142026-10-15

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

teachme

In its own words, on Community GitHub marketplaces:

Teach Me — turn any topic into a searchable, themed handbook or study material in your language, verified by a multi-agent QA harness, and published to GitHub Pages. Invoke with /teachme.

rubber-duck

In its own words, on Community GitHub marketplaces:

Asks one question at a time until you reach the answer yourself. Manual activation via /rubber-duck.

How to run each

teachme As a Claude Code plugin

Claude Code
/plugin marketplace add beret21/teachme
/plugin install teachme@teachme

rubber-duck As a Claude Code plugin

Claude Code
/plugin marketplace add centsandcode/rubber-duck
/plugin install rubber-duck@rubber-duck

Commands 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: teachme · What it can do: rubber-duck · Compare two other plugins

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.

Where the data comes from: how the catalog is built