diff --git a/.github/workflows/tasks.yml b/.github/workflows/tasks.yml
new file mode 100644
index 0000000..dbf2616
--- /dev/null
+++ b/.github/workflows/tasks.yml
@@ -0,0 +1,26 @@
+name: Tasks
+
+on: [push, pull_request]
+
+jobs:
+  lint-php:
+    name: "php: ${{ matrix.php }}"
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        php: [ '7.3', '7.4', '8.0', '8.1' ]
+    steps:
+      - name: Setup PHP with PECL extension
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+      - uses: actions/checkout@v2
+      - uses: actions/cache@v2
+        with:
+          path: ~/.composer/cache/files
+          key: ${{ runner.os }}-${{ matrix.php }}-composer-${{ hashFiles('**/composer.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-${{ matrix.php }}-composer-
+      - run: composer install --no-interaction --no-progress
+      - run: ./vendor/bin/grumphp run --ansi
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..d1502b0
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+vendor/
+composer.lock
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..7efbb9e
--- /dev/null
+++ b/README.md
@@ -0,0 +1,31 @@
+# @no-ci composer plugin
+
+## install
+
+``composer req andersundsehr/no-ci``
+
+## what dose it do
+
+This plugin adds the possibility to add `@no-ci`/`@ci` to any composer script.  
+you can Add it in front of every possible composer script. [documentation](https://getcomposer.org/doc/articles/scripts.md#writing-custom-commands)
+
+### Example composer.json
+````json
+{
+  "scripts": {
+    "test": [
+      "@no-ci @php vendor/bin/phpunit -c phpunit.xml",
+      "@ci @php vendor/bin/phpunit -c phpunit-ci.xml"
+    ],
+    "other:examples": [
+      "@no-ci Composer\\Config::disableProcessTimeout",
+      "@no-ci @clearCache",
+      "@no-ci @composer install",
+      "@no-ci @php script.php",
+      "@no-ci @putenv COMPOSER=phpstan-composer.json",
+      "@no-ci ls -alh"
+    ],
+    "clearCache": "rm -rf var"
+  }
+}
+````
diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000..832c792
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,47 @@
+{
+  "name" : "andersundsehr/no-ci",
+  "description" : "composer @no-ci addon",
+  "type" : "composer-plugin",
+  "license" : "GPL-2.0-or-later",
+  "autoload" : {
+    "psr-4" : {
+      "AUS\\NoCi\\" : "src/"
+    }
+  },
+  "authors" : [
+    {
+      "name" : "Matthias Vogel",
+      "email" : "m.vogel@andersundsehr.com"
+    }
+  ],
+  "scripts" : {
+    "test": "@no-ci @php -v"
+  },
+  "require" : {
+    "composer-plugin-api" : "^2.0",
+    "ondram/ci-detector": "^4.1",
+    "php": "^7.3 || ^8.0"
+  },
+  "require-dev": {
+    "composer/composer": "^2.0",
+    "pluswerk/grumphp-config": "^5"
+  },
+  "extra": {
+    "class": "AUS\\NoCi\\Plugin",
+    "pluswerk/grumphp-config": {
+      "auto-setting": true
+    },
+    "grumphp": {
+      "config-default-path": "vendor/pluswerk/grumphp-config/grumphp.yml"
+    }
+  },
+  "config": {
+    "allow-plugins": {
+      "typo3/cms-composer-installers": true,
+      "typo3/class-alias-loader": true,
+      "phpro/grumphp": true,
+      "phpstan/extension-installer": true,
+      "pluswerk/grumphp-config": true
+    }
+  }
+}
diff --git a/src/Plugin.php b/src/Plugin.php
new file mode 100644
index 0000000..639bdec
--- /dev/null
+++ b/src/Plugin.php
@@ -0,0 +1,70 @@
+<?php
+
+declare(strict_types=1);
+
+namespace AUS\NoCi;
+
+use Composer\Composer;
+use Composer\EventDispatcher\EventSubscriberInterface;
+use Composer\IO\IOInterface;
+use Composer\Plugin\PluginInterface;
+use Composer\Script\Event;
+use OndraM\CiDetector\CiDetector;
+use Composer\EventDispatcher\Event as BaseEvent;
+
+class Plugin implements PluginInterface, EventSubscriberInterface
+{
+    public static function getSubscribedEvents()
+    {
+        return [
+            'no-ci' => 'noCi',
+            'ci' => 'ci',
+        ];
+    }
+
+    public function noCi(Event $event): void
+    {
+        if ($this->isCi()) {
+            $event->getIO()->write('<warning>CI detected, skipping: ' . implode(' ', $event->getArguments()) . '</warning>');
+            return;
+        }
+        $this->runOriginalScript($event);
+    }
+
+    public function ci(Event $event): void
+    {
+        if (!$this->isCi()) {
+            $event->getIO()->write('<warning>no CI detected, skipping: ' . implode(' ', $event->getArguments()) . '</warning>');
+            return;
+        }
+        $this->runOriginalScript($event);
+    }
+
+    private function runOriginalScript(Event $event): void
+    {
+        $eventName = 'run-@no-ci-' . implode('-', $event->getArguments());
+        $dispatcher = $event->getComposer()->getEventDispatcher();
+        $childEvent = new Event($eventName, $event->getComposer(), $event->getIO(), $event->isDevMode(), [], $event->getFlags());
+        if (!$dispatcher->hasEventListeners($childEvent)) {
+            $dispatcher->addListener($eventName, implode(' ', $event->getArguments()));
+        }
+        $dispatcher->dispatch(null, $childEvent);
+    }
+
+    public function activate(Composer $composer, IOInterface $io)
+    {
+    }
+
+    public function deactivate(Composer $composer, IOInterface $io)
+    {
+    }
+
+    public function uninstall(Composer $composer, IOInterface $io)
+    {
+    }
+
+    private function isCi(): bool
+    {
+        return (new CiDetector())->isCiDetected();
+    }
+}