duplication-hunter vs modern-web-guidance
duplication-hunter is no longer listed on any marketplace we read: these are its last known data, as of 2026‑10‑18.
duplication-hunter is a plugin bundle for AI coding tools published by barnburner121. No marketplace we read lists it any more. modern-web-guidance is a plugin bundle for AI coding tools published by GoogleChrome. Marketplaces we read that list it: 4 (Claude Code: claude-plugins-official, Claude: knowledge-work-plugins, Copilot CLI: github/awesome-copilot, Community GitHub marketplaces). As of our marketplace pass on 2026-10-27. A plugin in this pair is no longer listed on any marketplace we read, so search engines are asked not to index the page.
Where each is published
| Marketplace |  modern-web-guidance | |
|---|---|---|
| Community marketplace barnburner121/claude-plugin-marketplace | Removed on 2026-10-18 Version: 1.0.0 Forks (GitHub): 0 Stars (GitHub): 3 Not marked · First seen |
Not listed |
| Claude Code: claude-plugins-official | Not listed | Listed Version: 0.0.194 Forks (GitHub): 98 Stars (GitHub): 2 558 Not marked · First seen |
| Claude: knowledge-work-plugins | Not listed | Listed Version: 0.0.194 Forks (GitHub): 98 Stars (GitHub): 2 558 Not marked · First seen |
| Copilot CLI: github/awesome-copilot | Not listed | Listed Version: 0.0.179 Forks (GitHub): 98 Stars (GitHub): 2 558 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 | duplication-hunterno longer listed · | modern-web-guidance |
|---|---|---|
| Marketplaces that list it (differs) | 0 | 4 |
| Stars (GitHub) (differs) | 3 | 2 558 |
| Forks (GitHub) (differs) | 0 | 98 |
| Last release (differs) | Not published | 2026-10-26 |
| Where it runs (differs) | On your machine (@barnburner121/plugin-hub-mcp) | 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 | 2 | 2 |
| Licence (differs) | MIT | Apache-2.0 |
| Repository (differs) | github.com/barnburner121/claude-plugin-marketplace | github.com/googlechrome/modern-web-guidance |
| Changes in the last 7 days (differs) | 0 | 2 |
| First seen (differs) | 2026-10-14 | 2026-10-11 |
Lines where the two differ have a tinted background and bold values. No value is marked better or worse: a plugin no marketplace lists any more is shown with its last known data, which we do not rank against current figures.
What to use instead of duplication-hunter
Plugins still listed whose own names, descriptions, tools and skills are closest in meaning to it. Comparable, not endorsed.
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Review changed code for reuse, redundancy, and over-engineering, then apply fixes.
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Code-quality skills for Claude Code. Currently a read-only dead code sweep: run the project's own static analyzer, triage what it flags against the ways code stays reachable…
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Get comprehensive code reviews with suggestions for improvements, best practices, and potential issues.
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Comprehensive code review with improvement suggestions
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Removes AI-generated code slop from code changes in the current branch
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Agent and skills for code simplification and refactoring to improve code quality while preserving functionality
What each says it does
duplication-hunter
Find duplicate code blocks and suggest DRY refactoring
modern-web-guidance
Keep your coding agent up to date with the latest web best practices
How to run each
duplication-hunter
No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.
modern-web-guidance As a Claude Code plugin
/plugin install modern-web-guidance@claude-plugins-officialCommands 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: duplication-hunter · What it can do: modern-web-guidance · Compare two other plugins
Data comes from public marketplace files in GitHub repositories of their authors. 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 the public marketplace file https://github.com/github/awesome-copilot/blob/HEAD/.github/plugin/marketplace.json. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.