VS Code Extension Expert

Overview

This skill enables expert-level VS Code extension development by providing comprehensive knowledge of the VS Code Extension API, architectural patterns, security requirements, and best practices. It should be used when creating new extensions, adding features to existing extensions, implementing WebViews, designing language support, or optimizing performance.

When to Use This Skill

• Implementing new VS Code extension features
• Designing extension architecture and structure
• Creating WebView-based UIs with proper security
• Implementing Language Server Protocol (LSP) features
• Debugging extension activation or runtime issues
• Optimizing extension performance and startup time
• Preparing extensions for Marketplace publication

Core Concepts

Extension Anatomy