Claude Code Mastery (P5): Skills, SubAgents & Agent Teams — Advanced Workflow for Teams

Claude Code Mastery (P4): MCP Servers, GitHub Integration & Stacked PRs

Claude Code Mastery (P3): Tools, Hooks & Quality Gates — Automated Quality Control

Claude Code Mastery (P2): Context, Commands & Modes — How to Teach the Agent About Your Project and Control It

Claude Code Mastery (P1): 5 Levels of AI Agent — Understand the Essence Before You Start

From Developer to AI Agent Engineer — A Practical Roadmap