What problem does it solve? Understanding how an external open-source library or framework implements a feature usually requires manually browsing dozens of files on GitHub, which is slow and error-prone. This Skill automates that investigation by running structured, parallel codebase searches and summarizing the findings with concrete file references. ## Core Features & Use Cases - Parallel Codebase Search: Decomposes a research question into 2-4 focused search angles and fires all github_codebase_search queries concurrently to minimize latency. - Implementation Analysis: Locates entry points, key functions, data flow, and configuration for any feature in a public GitHub repository. - Use Case: Before integrating an authentication library, ask how vercel/next.js handles session management. The Skill runs parallel queries on middleware, API routes, and token validation, then returns a cross-referenced summary with exact file paths. ## Quick Start Ask how a specific open-source repository implements a feature, for example: research how facebook/react implements its reconciliation algorithm.