Browse reusable Agent Skills, each with a clear purpose and practical guidance.
Use this skill when working in the CPython repository. It provides essential context about the CPython codebase structure, recommended tools, source code navigation, and best practices for maintaining engineering notebooks while working on Python runtime and standard library development.
Garnish — Craft CMS's built-in JavaScript UI toolkit for the control panel. Covers the class system (Garnish.Base.extend, init, setSettings, addListener, on/off/trigger, destroy), UI widgets (Modal, HUD, DisclosureMenu, MenuBtn, CustomSelect, ContextMenu, Select), drag system (BaseDrag, DragSort, DragDrop, DragMove), form widgets (NiceText, CheckboxSelect, MixedInput, MultiFunctionBtn), utilities (key constants, ARIA helpers, focus management), and Craft integration (GarnishAsset, webpack externals, Craft.* class pattern). Triggers on: Garnish.Base.extend, Garnish.Modal, Garnish.HUD, Garnish.DragSort, Garnish.DisclosureMenu, Garnish.ESC_KEY/RETURN_KEY, activate/textchange events, UiLayerManager, registerShortcut, trapFocusWithin, garnishjs, GarnishAsset, CpAsset, CP JavaScript, modal dialog, HUD popover, Craft.CP, Craft.Slideout, Craft.ElementEditor, onSortChange, onOptionSelect, onSelectionChange, aria-modal, focus trap, keyboard navigation CP, this.base(), window.Garnish, CP memory leak, event listener cleanup, jQuery .on() in CP. Always use when writing, editing, or reviewing JavaScript that runs in the Craft CP — plugin CP assets, custom field type JS, element index JS, CP webpack config, or code that imports garnishjs or references window.Garnish. Also trigger for CP accessibility, keyboard interactions, drag-sort behavior, or CP JS memory issues. Do NOT trigger for front-end JavaScript (Alpine, Vue, htmx) or Twig templates (craft-site).
The recommended way to create an Edge App
Creates a new API module following Clean Architecture with TDD. Use when adding new API endpoints, creating backend features, implementing domain entities, or when the user says "create module", "add endpoint", "new backend feature".
Create a custom grid cell renderer for Datagrok
Creates Alembic database migrations safely. Use when schema changes are needed, adding tables, columns, indexes, or modifying database structure.
Use when you need to customize SDK generation without editing the source spec, or can't modify the original OpenAPI file
Create React Router 7 routes with proper type imports, loaders, and actions. Use when adding new pages, API endpoints, layouts, or route files.
CREATE Vue 3 components with Composition API and TypeScript. Build reactive components, handle props/events, implement lifecycle hooks, and integrate with Vue Router. Use when building new UI components or fixing component bugs.