Agent Skills: fullstory-stable-selectors

Platform-agnostic guide for implementing stable, semantic identifiers in web and mobile applications. Solves the dynamic identifier problem across all platforms using the Fullstory Data Attributes Guide convention (data-component, data-id, data-section, data-position, data-state). Presents two approaches — Framework (shared components auto-decorate) and Individual Element Decoration — and instructs agents to ask users which they prefer. Core concepts apply universally; see SKILL-WEB.md for web implementation and SKILL-MOBILE.md for iOS, Android, Flutter, and React Native patterns.