`artisan make:?` command would auto-open new file (Controller/Model/etc) in editor.

ClassWasGenerated.php

<?php

namespace App\Events;

class ClassWasGenerated
{
    public $path;
 
    public function __construct($path)
    {
        $this->path = $path;
    }
}

EventServiceProvider.php

<?php

namespace App\Providers;

use Illuminate\Foundation\Support\Providers\EventServiceProvider as ServiceProvider;

class EventServiceProvider extends ServiceProvider
{
    protected $listen = [
        // truncated for brevity
        // Connect the listener to the event.
        'App\Events\ClassWasGenerated' => [
            'App\Listeners\OpenInSublime',
        ],
    ];
  
    // truncated for brevity
}

GeneratorCommand.php

<?php

namespace Illuminate\Console;

use Illuminate\Support\Str;
use App\Events\ClassWasGenerated;
use Illuminate\Filesystem\Filesystem;
use Symfony\Component\Console\Input\InputArgument;

abstract class GeneratorCommand extends Command
{
    // removed because not important to point of Gist
    public function handle()
    {
        // removed because not important to point of Gist
        $this->files->put($path, $this->buildClass($name));
        
        // only new line of code in this class (as well as "use")
        event(new ClassWasGenerated($path));
        // removed because not important to point of Gist
    }

OpenInSublime.php

<?php

namespace App\Listeners;

use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Contracts\Queue\ShouldQueue;

class OpenInSublime
{
    public function handle($event)
    {
        // might be `subl` for some people. But this class would be entirely opt-in and fully customizable.
        exec('sublime -a ' . $event->path);
    }
}