Ext Ops Panel
Open dashboard

B12

Plugin bundle · b12io

B12 is a plugin bundle for AI coding tools published by b12io. Marketplaces we read that list it: 2 (Claude: knowledge-work-plugins, Claude Code: claude-plugins-community). We first saw it on 2026-10-11 and have recorded no change since. As of our marketplace pass on 2026-10-12.

In its own words, on Claude: knowledge-work-plugins:

B12 plugin with two skills: Website Generator (create a B12 website from a brief description) and B12 Website Editor (edit a live B12 website using Claude's browser access in Claude Cowork).

Marketplaces
2
Where it runs
Installs as a plugin bundle
Largest published figure
10 Stars (GitHub) · Claude: knowledge-work-plugins
First seen
2026-10-11
Last change
None recorded
Verified mark
Not marked

Where it is published

MarketplaceStatusVersionFiguresVerifiedFirst seen
Claude: knowledge-work-plugins (Open the source on GitHub) Listed 1.0.0 Forks (GitHub): 0
Stars (GitHub): 10		 Not marked
Claude Code: claude-plugins-community (Open the source on GitHub) Listed 1.0.0 No figure published Not marked

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.

What it can do

Installs into the AI tool as a plugin bundle; what it starts is listed below.

None of the marketplaces we read publishes its tools or the settings it asks for.

What it declares, asks for and runs, in full

What the bundle contains

As published on Claude: knowledge-work-plugins.

Skills: 2

  • b12-website-editor
  • website-generator

What changed

Nothing has moved on this plugin since we started watching it.

The publisher

b12io · Repository: github.com/b12io/b12-claude-plugin

Similar plugins

Products whose own names, descriptions, tools and skills are closest in meaning to this one, on every marketplace we read. Closeness is ranked within this list only.

Similar plugins by marketplace

The same question asked of one marketplace at a time: is there an analog of this plugin there?

Has a listing on Claude Code: claude-plugins-community (5)
Has a listing on Claude Code: claude-plugins-official (5)
  • SuperdesignPlugin bundle · superdesigndev · Listed on: Claude Code: claude-plugins-official · Describes nearly the same job
  • mintlifyPlugin bundle · mintlify · Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins · Describes nearly the same job
  • frontend-designPlugin bundle · Anthropic · Listed on: Claude Code: claude-plugins-official · Describes nearly the same job
  • sanityPlugin bundle · sanity-io · Listed on: Claude Code: claude-plugins-official, Official MCP Registry, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community · Describes nearly the same job
  • Pendo GuidesPlugin bundle · pendo-io · Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins · Describes nearly the same job
Has a listing on Claude: knowledge-work-plugins (5)
  • mintlifyPlugin bundle · mintlify · Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins · Describes nearly the same job
  • DesignPlugin bundle · Anthropic · Listed on: Claude: knowledge-work-plugins · Describes nearly the same job
  • sanityPlugin bundle · sanity-io · Listed on: Claude Code: claude-plugins-official, Official MCP Registry, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community · Describes nearly the same job
  • Pendo GuidesPlugin bundle · pendo-io · Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins · Describes nearly the same job
  • MarketingPlugin bundle · Anthropic · Listed on: Claude: knowledge-work-plugins · Describes nearly the same job
Has a listing on Codex: openai-curated (openai/plugins) (5)
Has a listing on Community GitHub marketplaces (5)
  • stardustPlugin bundle · Adobe · Listed on: Community GitHub marketplaces · Describes nearly the same job
  • canvaPlugin bundle · canva-sdks · Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins, Community GitHub marketplaces · Describes nearly the same job
  • afterlaunch-growthPlugin bundle · AfterLaunch · Listed on: Community GitHub marketplaces · Describes nearly the same job
  • carbone-skillPlugin bundle · carboneio · Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins, Community GitHub marketplaces · Describes nearly the same job
  • run-workflowPlugin bundle · Adobe · Listed on: Community GitHub marketplaces · Describes nearly the same job
Has a listing on Copilot CLI: github/awesome-copilot (5)
  • site-studioPlugin bundle · Ayan Gupta · Listed on: Copilot CLI: github/awesome-copilot · Describes nearly the same job
  • vercelPlugin bundle · vercel · Listed on: Claude Code: claude-plugins-official, Copilot CLI: github/awesome-copilot, Claude Code: claude-plugins-community · Describes nearly the same job
  • modern-web-guidancePlugin bundle · GoogleChrome · Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins, Copilot CLI: github/awesome-copilot · Describes nearly the same job
  • figmaPlugin bundle · figma · Listed on: Claude Code: claude-plugins-official, Official MCP Registry, Claude: knowledge-work-plugins, Copilot CLI: github/awesome-copilot · Describes nearly the same job
  • frontend-web-devPlugin bundle · Awesome Copilot Community · Listed on: Copilot CLI: github/awesome-copilot · Describes a similar job
Has a listing on Copilot CLI: github/copilot-plugins (5)
  • microsoft-365-agents-toolkitPlugin bundle · microsoft · Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job
  • canvas-appsPlugin bundle · microsoft · Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job
  • power-pagesPlugin bundle · microsoft · Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job
  • code-apps-previewPlugin bundle · microsoft · Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job
  • mcp-appsPlugin bundle · microsoft · Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job
Has a listing on Cursor: cursor/plugins (5)
Has a listing on Docker MCP Catalog (5)
Has a listing on Official MCP Registry (5)

Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.

Is this your plugin?

Prove you maintain it with a file in its repository, a file on your domain or a DNS record. You get alerts when a marketplace lists it, drops it, changes its verified mark or what it asks for, and can put its remote endpoint on monitoring as a web service.

Claim this plugin See what the panel does

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/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. 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