LSP and MCP support for Custom Elements - intelligent autocomplete, validation, and AI-native component understanding
/plugin marketplace add bennypowers/cem/plugin install bennypowers-cem-extensions-claude-code@bennypowers/cemEasily create hooks to prevent unwanted behaviors by analyzing conversation patterns
Frontend design skill for UI/UX implementation
Adds educational insights about implementation choices and codebase patterns (mimics the deprecated Explanatory output style)
Migrate your code and prompts from Sonnet 4.x and Opus 4.1 to Opus 4.5.