What is magento2-backend-toolkit?
Scaffold Magento 2 backend modules, system.xml admin configs, widgets with parameters and templates, plugins/events/observers, transactional email with trigger setup, and Hyva-compatible .phtml templates with ViewModels. Use when user asks to "create module", "scaffold module", "generate plugin", "add system config", "create widget", "setup email template", "create hyva template", or any Magento 2 backend code generation. Do NOT use for frontend-only tasks, CSS/JS theming, or Magento 1.x. Source: tuanhaviet22/magento-skills.