Building a GitHub Repo Summarizer with ClaudeAgent Skills

This article provides a comprehensive guide on building a GitHub Repo Summarizer using ClaudeAgent Skills. It explains what Agent Skills are—reusable instructions for LLMs—and covers their types (pre-built and custom), their availability across Claude.ai, Claude API, Claude Code, and Claude Agent SDK. The article dives into the architecture of a custom skill that summarizes any GitHub repo, detailing the SKILL.md file and accompanying scripts (Python/Java) that fetch repo structure, README, dependencies, and tech stack. It describes how Claude orchestrates the process: scanning skills, running scripts on the local machine, collecting data, and passing it to the LLM for a structured summary. This is a technical tutorial relevant to developers, DevOps, and AI enthusiasts working with LLM agents and automation.