This Claude Code Command is PERFECT for Beginners!

Summary

Claude Code just released a /powerup command that gives you 10 interactive lessons to master its features. Instead of piecing together knowledge from YouTube videos or scattered conversations, you get structured tutorials right in your IDE. The first powerup teaches you to use the @ symbol to reference files and specific line ranges (like @src/app.ts:42-72) instead of copy-pasting code, which reduces hallucinations and saves tokens. You'll learn to switch between permission modes using Shift+Tab—plan mode for complex builds, accept edits for simple tasks. The /undo and /revert commands let you experiment boldly since you can roll back any changes. For long-running tasks, /task shows progress without interrupting Claude. The claude.md file is your project rulebook that Claude reads in every session—update it daily as your project evolves. MCP servers extend Claude's capabilities to databases, browsers, Slack, GitHub, and more. Skills are custom slash commands for repeatable workflows, while hooks automate event-driven actions. Sub-agents let Claude spin up multiple instances to handle parallel tasks automatically. You can even use /remote to check on tasks from your phone if you're running Claude Code on a VPS. Finally, you can switch models mid-session—use Haiku for simple scraping, Sonnet for research, and Opus for critical thinking tasks. While the current implementation is mostly demos rather than fully interactive lessons, it's still an underrated way to level up your Claude Code skills systematically.