Pro-tip to any devs who only discovered…

Pro-tip to any devs who only discovered TDD thanks to coding agents: refactoring is inherently directional. It's more like prefactoring—you rearrange code to make the next change easy. That means you (and your agent) should know the next planned change before you refactor!

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4.0k likes · March 14, 2026 at 3:34 PM

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