Что такое composer scripts?

// composer.json
"scripts": {
    "test": "phpunit",
    "lint": "phpstan analyse src",
    "fix": "php-cs-fixer fix",
    "post-install-cmd": ["@auto-scripts"],
    "post-update-cmd": ["@auto-scripts"],
    "auto-scripts": {
        "cache:clear": "symfony-cmd"
    }
}

// Запуск
// composer test
// composer lint
// composer fix

Скрипты запускаются через composer run-script name или composer name. Хуки: post-install-cmd, post-update-cmd, pre-autoload-dump и др.