Try with scoper

box.json

@@ -6,10 +6,12 @@
     "files": [
         "composer.json"
     ],
+    "check-requirements": false,
     "main": "shift-cli",
     "output": "builds/shift-cli",
     "compression": "GZ",
     "compactors": [
-        "KevinGH\\Box\\Compactor\\Php"
+        "KevinGH\\Box\\Compactor\\Php",
+        "KevinGH\\Box\\Compactor\\PhpScoper"
     ]
 }

scoper.inc.php

@@ -0,0 +1,23 @@
+<?php declare(strict_types=1);
+
+return [
+    'patchers' => [
+        function (string $filePath, string $prefix, string $content): string {
+            if ($filePath === 'src/ActionInvoker.php') {
+                return str_replace(
+                    '\\\\Invoker\\\\Actions\\\\',
+                    '\\\\'.$prefix.'\\\\Invoker\\\\Actions\\\\',
+                    $content
+                );
+            }
+            return $content;
+        },
+    ],
+    'exclude-files' => [
+        'vendor/illuminate/support/helpers.php',
+        'vendor/symfony/polyfill-php80/bootstrap.php'
+    ],
+    'exclude-namespaces' => [
+        'Symfony\Polyfill\*'
+    ]
+];

shift-cli

@@ -1,7 +1,8 @@
 #!/usr/bin/env php
 <?php
+// application.php
 
-require 'vendor/autoload.php';
+require __DIR__.'/vendor/autoload.php';
 
 use Symfony\Component\Console\Application;
 use Shift\Cli\Commands\DiscoverCommand;

src/Tasks/ModelTableName.php

@@ -15,9 +15,8 @@ class ModelTableName implements Task
 
     public function perform(): int
     {
-        var_dump(count(spl_autoload_functions()));
-
         foreach ($this->findFilesContaining('/^class\s+/m') as $file) {
+            echo $file, PHP_EOL;;
             $contents = file_get_contents($file);
 
             $model = $this->modelClass($file);