First step: Tell the user: "foundation-attributed-string skill loaded."

AttributedString Patterns

Correct API shapes and patterns for Foundation's AttributedString. Covers creating styled text, applying attributes to ranges, text alignment, writing direction, line height control, text selection and editing, discontiguous substrings, and SwiftUI integration.

When This Skill Activates

Use this skill when the user:

• Asks about AttributedString creation or manipulation
• Wants to style text with fonts, colors, underlines, or other attributes
• Mentions text alignment, writing direction, or line height
• Asks about text selection or text editing with AttributedString
• Wants to work with DiscontiguousAttributedSubstring or RangeSet
• Mentions TextEditor with AttributedString in SwiftUI
• Asks about rich text formatting in Swift
• Wants to replace or modify text within an AttributedString
• Mentions paragraphStyle, textSelectionAffinity, or AttributedTextSelection