shopify-polaris vs UICapsule
shopify-polaris is a plugin bundle for AI coding tools published by narutorabby. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). UICapsule is an MCP server published by uicapsule.com. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-26. 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 |  shopify-polaris |  UICapsule |
|---|---|---|
| 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: 1.0.0 Forks (GitHub): 3 Stars (GitHub): 32 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 | shopify-polaris | UICapsule |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 0 (worse) | 32 (better) |
| Forks (GitHub) (differs) | 0 (worse) | 3 (better) |
| Last release | Not published | Not published |
| Where it runs (differs) | Installs as a plugin bundle | Remote server (www.uicapsule.com/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) | 1 | Not a bundle |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/narutorabby/shopify-polaris-claude-plugin | github.com/kyh/uicapsule |
| Changes in the last 7 days | 0 | 0 |
| First seen (differs) | 2026-10-12 | 2026-10-11 |
| Endpoint at the last check (differs) | no remote endpoint we check | Responded 6 days ago |
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
shopify-polaris
Teaches Claude Code the complete Shopify Polaris web component library (<s-*> custom elements) for building Shopify App Home UIs. Covers all 46 components with props, events, slots, and usage patterns — automatically activates when working on Shopify app UI.
UICapsule
Search and install interactive React components with unusual motion, via the shadcn CLI.
How to run each
shopify-polaris As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install shopify-polaris@claude-communityUICapsule As a remote MCP server
claude mcp add --transport http components https://www.uicapsule.com/mcpCommands built only from what the marketplaces declare; the full set for every client is on each card.
Only UICapsule 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: shopify-polaris · What it can do: UICapsule · 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. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.