diff --git a/src/Types/Harness/Repository/PackageRepository.php b/src/Types/Harness/Repository/PackageRepository.php
index f8e5f566..d94beeaa 100644
--- a/src/Types/Harness/Repository/PackageRepository.php
+++ b/src/Types/Harness/Repository/PackageRepository.php
@@ -67,6 +67,22 @@ public function get(string $package): Package
         ]);
     }
 
+    public function getAllPackages(): array
+    {
+        $this->importPackagesFromSources();
+
+        // $availablePackages = array_keys($this->packages);
+
+        // $candidate = null;
+        // foreach ($availablePackages as $availablePackage) {
+        //     $availableVersions = array_keys($this->packages[$availablePackage]);
+        //     foreach ($availableVersions as $availableVersion) {
+        //     # should I write here the code the print the table of Harnes, version 1.x, Version 2.x , version x.y etc... ?
+        //    }
+        // }
+        return $this->packages;
+    }
+
     public function addPackage(string $name, string $version, array $dist): void
     {
         $this->mustParseVersionString($version);
diff --git a/src/Types/Workspace/Builder.php b/src/Types/Workspace/Builder.php
index ce5a398b..a186829d 100644
--- a/src/Types/Workspace/Builder.php
+++ b/src/Types/Workspace/Builder.php
@@ -17,6 +17,7 @@
 use my127\Workspace\Types\Attribute\Collection as AttributeCollection;
 use my127\Workspace\Types\Confd\Definition as ConfdDefinition;
 use my127\Workspace\Types\Harness\Definition as HarnessDefinition;
+use my127\Workspace\Types\Harness\Repository\PackageRepository;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 use Symfony\Component\Filesystem\Path;
 use Symfony\Component\Yaml\Yaml;
@@ -33,6 +34,11 @@ class Builder extends Workspace implements EnvironmentBuilder, EventSubscriberIn
      */
     private $workspace;
 
+    /**
+     * @var PackageRepository
+     */
+    private $packageRepository;
+
     /**
      * @var PHPExecutor
      */
@@ -48,13 +54,14 @@ class Builder extends Workspace implements EnvironmentBuilder, EventSubscriberIn
      */
     private $expression;
 
-    public function __construct(Application $application, Workspace $workspace, PHPExecutor $phpExecutor, AttributeCollection $attributes, Expression $expression)
+    public function __construct(Application $application, AttributeCollection $attributes, Expression $expression, PackageRepository $packageRepository, PHPExecutor $phpExecutor, Workspace $workspace)
     {
         $this->application = $application;
-        $this->workspace = $workspace;
-        $this->phpExecutor = $phpExecutor;
         $this->attributes = $attributes;
         $this->expression = $expression;
+        $this->packageRepository = $packageRepository;
+        $this->phpExecutor = $phpExecutor;
+        $this->workspace = $workspace;
     }
 
     public function build(Environment $environment, DefinitionCollection $definitions)
@@ -139,6 +146,11 @@ public function build(Environment $environment, DefinitionCollection $definition
                     $this->workspace->run('install --step=prepare');
                 });
         }
+        $this->application->section('harness list')
+                ->usage('harness list')
+                ->action(function (Input $input) {
+                    $this->packageRepository->getAllPackages();
+                });
 
         $this->application->section('config dump')
             ->option('--key=<key>   Attribute key to dump.')
diff --git a/tests/Test/Types/Harness/Repository/PackageRepositoryTest.php b/tests/Test/Types/Harness/Repository/PackageRepositoryTest.php
index bb52d2e5..35fc01db 100644
--- a/tests/Test/Types/Harness/Repository/PackageRepositoryTest.php
+++ b/tests/Test/Types/Harness/Repository/PackageRepositoryTest.php
@@ -41,6 +41,34 @@ public function itGetsAPackage(): void
         self::assertEquals('v1.0.0', $package->getVersion());
     }
 
+    /** @test */
+    public function itGetsAllPackagesAndVersions(): void
+    {
+        $repository = $this->createRepository();
+        $repository->addPackage('foo/bar', 'v1.0.0', []);
+        $repository->addPackage('foo/bar2', 'v1.0.0', []);
+        $repository->addPackage('foo/bar2', 'v2.0.0', []);
+        $repository->addPackage('foo/bar3', 'v1.0.0', []);
+        $repository->addPackage('foo/bar3', 'v2.0.0', []);
+        $repository->addPackage('foo/bar3', 'v3.0.0', []);
+        $packages = $repository->getAllPackages();
+
+        self::assertEquals(true, is_array($packages));
+        self::assertCount(3, $packages);
+
+        $availableVersions = array_keys($packages['foo/bar']);
+
+        self::assertCount(1, $availableVersions);
+
+        $availableVersions = array_keys($packages['foo/bar2']);
+
+        self::assertCount(2, $availableVersions);
+
+        $availableVersions = array_keys($packages['foo/bar3']);
+
+        self::assertCount(3, $availableVersions);
+    }
+
     /** @test */
     public function itImportsPackageFromSource(): void
     {