How to Build a Claude Agent Skill with Java — A Complete Walkthrough

This article provides a detailed, step-by-step guide on how to build a Claude Agent Skill with Java. It explains why Java might be chosen over Python in a Java ecosystem, lists prerequisites like Claude Code CLI, Anthropic API Key, and GitHub CLI, and walks through installation and authentication steps. The guide covers creating the project structure, writing SKILL.md with frontmatter and instructions, and includes scripts for fetching repo data and detecting tech stacks. It emphasizes that Skills are language-agnostic and focuses on practical implementation for developers working with Claude and GitHub.