Claude Code 2.0 Core Features Deep Dive Series

This is Part 1 of the series. The complete series includes:

1. Skills and Sandbox - Enhancing Extensibility and Security (This Article)
2. Subagents and Plan Mode - The New Era of Intelligent Collaboration
3. Hooks System and Migration Guide - Workflow Automation and Smooth Upgrades

Claude Code 2.0.20 introduces two revolutionary features: Skills (skill system) and Sandbox Mode. Skills enable Claude to automatically activate specialized functional modules, greatly enhancing extensibility; Sandbox Mode elevates security to a new level through OS-level isolation. This article provides an in-depth exploration of the principles, configuration, and practical applications of these two features.