Shadcn UI & Blocks — Claude Code Plugin

A Claude Code skill that gives Claude deep knowledge of 1,338 blocks and 1,189 components from ShadcnBlocks, built on shadcn/ui and Tailwind CSS.

When activated, Claude can intelligently select the right pre-built UI block or component for any frontend task — from landing page hero sections to dashboard data tables to ecommerce checkout flows — then handle setup and installation automatically.

What is a Claude Code Skill?

Skills are reusable instructions that extend Claude Code's capabilities. They activate automatically based on what you're doing (e.g., building a frontend) and give Claude domain-specific knowledge and workflows. Learn more in the Claude Code documentation.

Installation

Install as a Claude Code plugin from GitHub:

claude plugin marketplace add masonjames/Shadcnblocks-Skill
claude plugin install shadcnblocks

Plugin Structure

.claude-plugin/
  plugin.json
skills/
  shadcn-ui/
    SKILL.md
    references/
      block-catalog.md
      component-catalog.md
      setup-guide.md
    scripts/
      get-api-key.sh
      setup-shadcnblocks.sh

Prerequisites

A React/Next.js project (or any framework supporting shadcn/ui)
Tailwind CSS configured
shadcn/ui initialized (npx shadcn@latest init)
A ShadcnBlocks API key (requires a paid plan)
jq installed (for automated setup: brew install jq)
(Optional) 1Password CLI for secure key management

API Key Setup

Provide your ShadcnBlocks API key in one of two ways:

Option A — Environment variable (simplest):

export SHADCNBLOCKS_API_KEY=<your-key>

Option B — 1Password CLI:

# Use the default reference path, or set your own:
export OP_SHADCNBLOCKS_REF="op://<Your Vault>/<Your Item>/credential"

The scripts check for the environment variable first, then fall back to 1Password.

Quick Start

Initialize shadcn/ui in your project (if not done):
```
npx shadcn@latest init
```
Run the setup script to configure the ShadcnBlocks registry:
```
bash scripts/setup-shadcnblocks.sh /path/to/your/project
```

Install blocks:

npx shadcn add @shadcnblocks/hero125
npx shadcn add @shadcnblocks/pricing3

Import and compose in your page — blocks are standard React components.

What's Included

The skill's primary value is its comprehensive catalog knowledge — Claude knows every available block and component category, what each is for, and which to recommend for a given need.

Block Categories (71 categories, 1,338 blocks)

Blocks are full page sections: hero, feature, pricing, testimonial, FAQ, navbar, footer, blog, contact, team, about, gallery, ecommerce (product cards, carts, checkout), app/dashboard (charts, data tables, sidebars), and more.

Component Groups (60+ groups, 1,189 components)

Components are reusable UI elements: forms, inputs, buttons, dialogs, sheets, accordions, charts, file uploads, comboboxes, alerts, toasts, and more. All components are free.

Repository Structure

.claude-plugin/
  plugin.json                # Plugin manifest
skills/
  shadcn-ui/
    SKILL.md                 # Skill definition with selection guides
    references/
      block-catalog.md       # Full block catalog (71 categories)
      component-catalog.md   # Full component catalog (60+ groups)
      setup-guide.md         # Step-by-step setup instructions
    scripts/
      get-api-key.sh         # Retrieves API key (env var or 1Password)
      setup-shadcnblocks.sh  # Automated project setup

Security

API keys are never written to tracked source files. The setup script writes an environment variable placeholder (${SHADCNBLOCKS_API_KEY}) to components.json, not the actual key.
The actual key is stored only in .env, which is gitignored.
Scripts support both direct environment variables and 1Password CLI for secure credential management.

License

MIT