Lodestar: Codemaps and Code Explanations

by Meredith Schaden

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Oct 9, 2026 Developer Tools

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Been working on this for a while, it's called Lodestar. You ask it how something works, like "how does a request reach the route handler", and it follows the code and gives you the path step by step. Every step is a real line, click it and you're there. You can also hover a function or even a regex and get a few lines on what it does in that project. It also reviews your uncommitted changes, a branch or a commit. Finds bugs, security holes and the usual AI mess (tests that test...