Agent Skills: arkts-static-spec

ArkTS (Extended TypeScript) static language specification reference for OpenHarmony. Comprehensive guide covering syntax, types, classes, expressions, statements, generics, modules, annotations, and advanced features. Use when: (1) Writing or analyzing ArkTS code (.ets files), (2) Understanding ArkTS type system and type checking, (3) Implementing ArkTS language features, (4) Debugging ArkTS compilation issues, (5) Creating ArkTS developer tools or compilers, (6) Validating ArkTS code compliance, (7) Migrating from TypeScript to ArkTS. Provides detailed language rules from the official specification including lexical structure, type system, OOP features, runtime semantics, and TypeScript migration guide.