Dibuja en la interfaz con un mod

{
  "name": "hello-tabs",
  "version": "0.1.0",
  "description": "Opens a pane with two tabs and a counter",
  "author": { "name": "Your Name" }
}

{
  "modules": ["./register.js"]
}

// The pane's id, used to open the pane and to recognize it when drawing
const PANE = 'hello-tabs'

// What the pane shows: which tab is open, and the counter's value
let tab = 'one'
let count = 0

export function register(on) {
  // Runs before your first prompt, and again after a reload
  on('session.start', async ($, e, next) => {
    await $.command.register({ name: 'hello-tabs', description: 'Open the hello-tabs pane' })
    // Load the count an earlier session saved, if there is one
    const saved = await $.store.get('count')
    if (typeof saved === 'number') count = saved
    return next(e)
  })

  // Runs when you type /hello-tabs
  on('command.run', { command: 'hello-tabs' }, async ($) => {
    // Open the pane, give it the keyboard, and let Esc close it
    await $.ui.open({ id: PANE, title: 'Hello tabs', focus: true, closeOnEscape: true })
    // Print nothing in the transcript
    return {}
  })

  // Runs each time Claude Code draws a pane
  on('ui.render', { component: 'Pane' }, async ($, e, next) => {
    // Leave other mods' panes alone
    if (e.requestId !== PANE) return next(e)
    // Get the elements this app can draw
    const { Box, Text, Button } = $.ui.resolve(e)
    // Ask Claude Code to run this hook again
    const redraw = () => $.ui.invalidate('ui.render')

    // One tab: a button that switches to its tab when pressed
    const tabButton = (name, label, hotkey) =>
      Button({
        key: 'tab-' + name,
        label,
        hotkey,
        plain: true,
        // Dim the tab that isn't open
        dimColor: tab !== name,
        onPress: () => {
          tab = name
          redraw()
        },
      })

    // What goes under the tabs, depending on which one is open
    const body =
      tab === 'one'
        ? [Text({ children: ['This is the first tab.'] })]
        : [
            Box({
              flexDirection: 'row',
              columnGap: 2,
              children: [
                Button({
                  key: 'more',
                  label: 'Add one',
                  hotkey: 'a',
                  onPress: async () => {
                    count += 1
                    redraw()
                    // Save the count so it's there after a restart
                    await $.store.set('count', count)
                  },
                }),
                Text({ children: ['Count: ' + count] }),
              ],
            }),
          ]

    // The whole pane: the row of tabs, a blank line, then the body
    return Box({
      flexDirection: 'column',
      children: [
        Box({
          flexDirection: 'row',
          columnGap: 3,
          children: [tabButton('one', 'One', '1'), tabButton('two', 'Two', '2')],
        }),
        Text({ children: [' '] }),
        ...body,
      ],
    })
  })
}