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Understanding an Unfamiliar Codebase with AI

High Priority16 min readUpdated November 1, 2026

In this chapter, we'll learn how to use coding agents to explore an unfamiliar codebase, identify the parts relevant to our task, and verify that the agent's explanations are correct.

Here's the approach we'll follow, starting with the big picture and gradually narrowing our focus:

By the end, we'll have a clear understanding of the code involved and a practical plan for making the change.

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