Base UI Dialogs and Anchored Popups

Use this skill for popup/dialog families that are primarily about focus, positioning, and modal lifecycles.

Covered family

• Alert Dialog
• Dialog
• Drawer
• Popover
• Preview Card
• Tooltip

Routing cues

• "portal", "positioning", "focus return", "escape", "initialFocus", "finalFocus", "open change", "modal popup", "anchored popup" → this skill
• Menus, navigation surfaces, toolbar, or toast systems → route to base-ui-menus-navigation-and-toast

Canonical references