its-just-ui

MCP its-just-ui Server for Cursor

A Model Context Protocol (MCP) server optimized for Cursor IDE, enabling AI-powered generation, customization, and documentation of its-just-ui React components directly in your editor.

🎯 Why Use This in Cursor?

• Native MCP Support: Cursor has built-in support for MCP servers via stdio
• AI-Powered Component Generation: Generate complete its-just-ui components with a simple prompt
• Contextual Awareness: The AI understands your project structure and existing code
• Zero Configuration: Works out of the box with minimal setup

Table of Contents

• 🚀 Quick Start for Cursor
• ⚙️ Cursor Configuration
• 🛠️ Available Tools in Cursor
• 💡 Cursor Usage Examples
• 📚 Alternative: Claude Desktop
• Development
• Troubleshooting
• License

🚀 Quick Start for Cursor

Option 1: NPM Package (Recommended)

# Simply add to your Cursor config - no installation needed!
# Cursor will handle everything via npx

Option 2: Local Development

# Clone and build
git clone https://github.com/its-just-ui/its-just-mcp.git
cd its-just-mcp
npm install && npm run build

⚙️ Cursor Configuration

Step 1: Create MCP Configuration

Project-Level (Recommended)

Create .cursor/mcp.json in your React project root:

{
  "mcpServers": {
    "its-just-ui": {
      "command": "npx",
      "args": ["-y", "its-just-mcp"],
      "env": {}
    }
  }
}

Global Configuration (All Projects)

Create ~/.cursor/mcp.json:

{
  "mcpServers": {
    "its-just-ui": {
      "command": "npx",
      "args": ["-y", "its-just-mcp"],
      "env": {}
    }
  }
}

Local Development Setup

If you're developing the MCP server locally:

{
  "mcpServers": {
    "its-just-ui": {
      "command": "node",
      "args": ["/absolute/path/to/its-just-mcp/dist/index.js"],
      "env": {}
    }
  }
}

Step 2: Restart Cursor

After adding the configuration, restart Cursor to load the MCP server.

Step 3: Verify Installation

In Cursor, you can ask the AI:

• "What MCP tools are available?"
• "Generate a Button component using its-just-ui"

🎨 Cursor-Specific Features

Inline Component Generation

Ask Cursor AI to generate components directly in your code:

"Add a primary button with loading state here"
"Create a card grid layout with 3 columns"
"Generate a login form with validation"

Context-Aware Suggestions

The MCP server understands your project context:

• Existing theme configuration
• Component usage patterns
• Project structure

Quick Commands in Cursor

• Generate: ⌘+K → "Generate [component] with [props]"
• Document: ⌘+K → "Document this its-just-ui component"
• Theme: ⌘+K → "Configure dark theme for its-just-ui"
• Form: ⌘+K → "Create a contact form with validation"

🛠️ Available Tools in Cursor

Component Generation

Tool	Cursor Command Example	Description
generate_component	"Generate a primary button"	Create any its-just-ui component
list_components	"Show me all form components"	Browse available components
compose_components	"Create a card grid layout"	Compose multiple components

Theme & Styling

Tool	Cursor Command Example	Description
configure_theme	"Set up dark mode theme"	Configure ThemeProvider
generate_tailwind_classes	"Generate spacing utilities"	Create Tailwind utility classes
create_responsive_layout	"Make a responsive grid"	Build responsive layouts

Forms & Documentation

Tool	Cursor Command Example	Description
create_form	"Build a contact form"	Generate complete forms
get_component_docs	"Show Button documentation"	Get component docs
check_accessibility	"Check Dialog accessibility"	Review ARIA attributes

💡 Cursor Usage Examples

Example 1: Generate a Component

In Cursor, simply type ⌘+K and ask:

"Generate a primary button with loading state"

The AI will use the MCP server to generate:

<Button variant="primary" loading={true}>
  Processing...
</Button>

Example 2: Create a Complete Form

"Create a login form with email and password validation"

Result:

<form onSubmit={handleSubmit}>
  <Input
    type="email"
    name="email"
    label="Email"
    required
    placeholder="Enter your email"
  />
  <Input
    type="password"
    name="password"
    label="Password"
    required
    minLength={8}
  />
  <Button type="submit" variant="primary">
    Login
  </Button>
</form>

Example 3: Configure Theme

"Set up a dark theme with blue primary color"

Result:

<ThemeProvider
  theme={{
    mode: "dark",
    colors: {
      primary: "#3b82f6",
      secondary: "#64748b"
    }
  }}
>
  {children}
</ThemeProvider>

📚 Alternative: Claude Desktop

While this server is optimized for Cursor, it also works with Claude Desktop:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "its-just-ui": {
      "command": "npx",
      "args": ["-y", "its-just-mcp"],
      "env": {}
    }
  }
}

Development

# Install dependencies
npm install

# Run in development mode
npm run dev

# Build for production
npm run build

# Run tests
npm test

Linting & Formatting

# ESLint
npm run lint

# Prettier
npm run format

Testing

# Jest
npm test

# Watch mode
npm run test:watch

# Coverage
npm run test:coverage

Project Structure

its-just-mcp/
├── src/
│   ├── index.ts              # Main server entry point
│   ├── components/
│   │   └── registry.ts       # Component definitions and metadata
│   └── tools/
│       ├── componentGenerator.ts  # Component generation logic
│       ├── themeManager.ts       # Theme configuration tools
│       ├── utilityTools.ts       # Utility and layout tools
│       └── documentationTools.ts # Documentation and accessibility
├── dist/                      # Compiled output
├── package.json
├── tsconfig.json
└── README.md

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

Recommended steps:

• Fork the repo and create a feature branch
• Add tests for new behavior
• Run lint and tests locally
• Open a PR with a clear description and examples

License

MIT

Support

For issues or questions, please open an issue on GitHub or contact the maintainers.

Related Links

• Cursor IDE - The AI-first code editor
• Cursor MCP Documentation
• its-just-ui Library
• its-just-ui on npm
• MCP SDK Documentation

Troubleshooting

Cursor-Specific Issues

Issue	Solution
MCP tools not available	1. Restart Cursor 2. Check .cursor/mcp.json is valid JSON 3. Verify the server path is correct
"Command not found: npx"	Install Node.js 18+ and npm
Server not responding	1. Check Cursor Console (View → Output → MCP) 2. Try local installation instead of npx
Tools not showing in AI	Ask "What MCP tools are available?" to refresh

Common Fixes

# Verify Node version (needs 18+)
node --version

# For local development, rebuild
cd /path/to/its-just-mcp
npm run build

# Check MCP config is valid JSON
cat .cursor/mcp.json | jq .

# Clear npm cache if npx fails
npm cache clean --force

Getting Help

• Check Cursor Console: View → Output → MCP
• Cursor MCP Docs: https://cursor-docs.apidog.io/model-context-protocol
• Open an issue: https://github.com/its-just-ui/its-just-mcp/issues