Universal DevTools Kit SDK

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Universal DevTools Kit SDK / create-u-devtools

create-u-devtools

CLI tool to scaffold Universal DevTools plugins. Built with Hygen for easy template management.

The generator provides templates for multiple frameworks, allowing you to create plugins using your preferred technology stack.

Usage

In Monorepo

From the root of the monorepo:

pnpm create:plugin

As Published Package

Once published to npm, users can run:

npm create u-devtools@latest
# or
pnpm create u-devtools
# or
yarn create u-devtools

The tool will ask you:

• Project folder name (e.g., plugins/my-feature)
• Plugin display name (e.g., My Feature)
• Package name (e.g., @u-devtools/plugin-my-feature)
• Description
• Template - Choose your framework (Vue, React, Solid, Svelte, Vanilla, Lit)
• Features to include (checkboxes):
  • Settings Schema
  • Command Palette Commands
  • Sidebar Panel
  • Overlay Menu Item
  • File System Operations (Server)
  • App Context Communication

What It Creates

The generator creates a complete plugin structure tailored to your chosen framework:

my-plugin/
├── package.json          # Framework-specific dependencies
├── vite.config.ts       # Vite config with framework plugin
├── tsconfig.json         # TypeScript configuration
├── svelte.config.js      # (Svelte only)
└── src/
    ├── index.ts          # Plugin entry point
    ├── server.ts         # Server RPC handlers
    ├── client.tsx/.ts    # Client UI definition
    ├── app.ts            # App context script (optional)
    └── ui/
        └── [Component]   # Framework-specific component
            - Vue: MyPanel.vue
            - React: ReactPanel (in client.tsx)
            - Solid: SolidPanel (in client.tsx)
            - Svelte: SveltePanel.svelte
            - Vanilla: vanilla-panel.ts
            - Lit: lit-panel.ts (Lit Web Component)

Next Steps

After scaffolding:

1. Install dependencies:

   cd my-plugin
   pnpm install

2. Build the plugin:

   pnpm build

3. The plugin is automatically added to playground:

   • Added to playground/package.json devDependencies
   • Imported and registered in playground/vite.config.ts
   • Added to ssr.noExternal array

4. Test in playground:

   pnpm dev

Development

To build the CLI tool:

cd packages/create
pnpm build

The _templates directory is included in the npm package, so no copying is needed. Templates use EJS syntax (e.g., <%= pluginName %>, <%= packageName %>) which Hygen automatically replaces.

Available Templates

The generator supports multiple framework templates:

• vue - Vue 3 with Composition API (default)
• react - React 18 with hooks
• solid - SolidJS with signals
• svelte - Svelte 5 with runes
• vanilla - Vanilla JavaScript/TypeScript (no framework)
• lit - Web Components with Lit (Lit-style)

Each template includes:

• Framework-specific configuration (Vite, TypeScript)
• Example UI component demonstrating API usage
• Server RPC handlers
• App context script (optional)
• Complete build setup