rubber-duck vs io.github.lennix1337/genexus
rubber-duck is a plugin bundle for AI coding tools published by mo-inkhan. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). io.github.lennix1337/genexus is an MCP server published by lennix1337. Marketplaces we read that list it: 2 (Official MCP Registry, npm registry (MCP servers)). As of our marketplace pass on 2026-10-20. 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 |  rubber-duck |  io.github.lennix1337/genexus |
|---|---|---|
| Claude Code: claude-plugins-community | Listed Version: 1.0.0 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 2.0.4 Downloads/month (npm): 7 136 Downloads/week (npm): 600 Forks (GitHub): 27 Stars (GitHub): 37 Not marked · First seen |
| npm registry (MCP servers) | Not listed | Listed Version: 3.16.0 Downloads/month (npm): 7 136 Downloads/week (npm): 600 Forks (GitHub): 27 Stars (GitHub): 37 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 | rubber-duck | io.github.lennix1337/genexus |
|---|---|---|
| Marketplaces that list it (differs) | 1 (worse) | 2 (better) |
| Stars (GitHub) (differs) | 0 (worse) | 37 (better) |
| Forks (GitHub) (differs) | 0 (worse) | 27 (better) |
| Last release (differs) | Not published | 2026-10-17 |
| Where it runs (differs) | Installs as a plugin bundle | On your machine (genexus-mcp) |
| Transport (differs) | Not stated | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Hooks it runs (differs) | 1 | Not published |
| Parts of the bundle (differs) | 8 | Not a bundle |
| Licence | MIT | MIT |
| Repository (differs) | github.com/mo-inkhan/rubber-duck | github.com/lennix1337/genexus18mcp |
| Changes in the last 7 days (differs) | 0 | 2 |
| First seen | 2026-10-11 | 2026-10-11 |
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
rubber-duck
rubber-duck is a Socratic thinking partner for Claude Code. Inspired by the classic rubber duck debugging technique—but with a duck that actually talks back—it helps you think through problems instead of just handing you answers. While most AI tools focus on writing code for you, rubber-duck is designed to help you learn it. Rather than giving you the fix, it asks the right question at the right time—guiding you step by step, at your own pace. Use Claude when you need to ship fast. Use rubber-duck when you want to understand what you’re building. The best developers use both.
io.github.lennix1337/genexus
Read, edit, and analyze GeneXus 18 KB objects from Claude, Cursor, and AI agents.
How to run each
rubber-duck As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install rubber-duck@claude-communityio.github.lennix1337/genexus As a local MCP server: npm package
claude mcp add --transport stdio genexus -- npx -y genexus-mcpCommands 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: rubber-duck · What it can do: io.github.lennix1337/genexus · Compare two other plugins
Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Package data comes from the public npm registry (registry.npmjs.org). Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.