Show HN: Onboard CLI Uses an LLM to Filter Nodes and AST to Visualize Codebases

Onboard CLI is an open-source codebase understanding tool that combines an LLM with abstract syntax tree (AST) analysis. According to its Hacker News submission, the LLM filters codebase nodes while the AST is used to visualize the resulting structure. The project is hosted on GitHub by animesh-94. Its Hacker News post had a score of 2 and no comments at the time of publication, so independent validation, adoption signals, and detailed implementation evidence remain limited.