paiza Inc. (Minato-ku, Tokyo; President and CEO: Yasuto Tachi), operator of the IT engineer career, recruitment, and learning platform paiza, announced that it has begun offering a new course co-developed with Python VTuber Sapoo: “Introduction to Vibe Coding, Claude Code Edition 3: Let’s Try Agent Skills.” The theme of this course is “Skills,” an advanced feature for further automating Claude Code, the AI coding tool announced by Anthropic and currently attracting attention. This course is an applied course designed to help learners use Anthropic’s AI coding tool Claude Code in more practical ways. Participants will learn how to build “Agent Skills,” which can inject project-specific coding rules and business knowledge into Claude, as well as how to use “Plugins” to introduce functions from external tools and marketplaces through the common standard MCP (Model Context Protocol). By using Skills, developers can reflect project-specific coding rules and development workflows in Claude, allowing routine tasks and complex procedures to be carried out with higher reproducibility. By introducing Plugins, learners can also add extensions such as Skills, Agents, and external tool integrations, and learn how to evolve Claude Code to match their own or their team’s development style. The course is aimed at IT engineers who want to use AI not merely as a discussion partner, but as a practical development assistant that understands their development rules and business procedures. The course covers how to create Agent Skills for Claude Code, how to install Plugins, and how to use and apply them. It explains the shift from giving AI instructions through prompts to assigning roles through agentization, introduces ways to extend functionality through MCP by installing Plugins from marketplaces, and includes practical work such as automatically applying coding rules using YAML front matter and using custom Skills to support multilingual Web applications. Course URL: https://paiza.j