jar-explorer vs qt-development-skills
jar-explorer is a plugin bundle for AI coding tools published by tarekst. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). qt-development-skills is a plugin bundle for AI coding tools published by TheQtCompanyRnD. Marketplaces we read that list it: 3 (Claude Code: claude-plugins-official, Claude: knowledge-work-plugins, Community GitHub marketplaces). As of our marketplace pass on 2026-10-27. 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 |  jar-explorer |  qt-development-skills |
|---|---|---|
| Claude Code: claude-plugins-community | Listed Version: 0.1.1 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
Not listed |
| Claude Code: claude-plugins-official | Not listed | Listed Version: 1.7.3 Forks (GitHub): 51 Stars (GitHub): 507 Not marked · First seen |
| Claude: knowledge-work-plugins | Not listed | Listed Version: 1.7.3 Forks (GitHub): 51 Stars (GitHub): 507 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 | jar-explorer | qt-development-skills |
|---|---|---|
| Marketplaces that list it (differs) | 1 (worse) | 3 (better) |
| Stars (GitHub) (differs) | 0 (worse) | 507 (better) |
| Forks (GitHub) (differs) | 0 (worse) | 51 (better) |
| Last release (differs) | Not published | 2026-10-20 |
| Where it runs (differs) | Installs as a plugin bundle | Remote server (qt-docs-mcp.qt.io/mcp) |
| Transport (differs) | Not stated | Streamable HTTP |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | 3 | 16 |
| Licence (differs) | MIT | BSD-3-Clause |
| Repository (differs) | github.com/tarekst/jar-explorer | github.com/theqtcompanyrnd/agent-skills |
| Changes in the last 7 days (differs) | 0 | 2 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | no remote endpoint we check | Not responding since 2026-10-24 |
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
jar-explorer
Decompile and explore Java JAR files — read source code of dependencies, search packages, classes, methods, and fields.
qt-development-skills
Agentic engineering skills for Qt software development — Qt C++/QML code review, QML coding, and Qt C++/QML code documentation.
How to run each
jar-explorer As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install jar-explorer@claude-communityqt-development-skills As a Claude Code plugin
/plugin install qt-development-skills@claude-plugins-officialCommands built only from what the marketplaces declare; the full set for every client is on each card.
Only qt-development-skills has a remote endpoint we check. How we check endpoints
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: jar-explorer · What it can do: qt-development-skills · 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 public marketplace file https://github.com/anthropics/claude-plugins-official/blob/HEAD/.claude-plugin/marketplace.json. Data comes from the public marketplace file https://github.com/anthropics/knowledge-work-plugins/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.