Kiro for Test-Driven Development (TDD)

You’ve spent years mastering TDD’s red-green-refactor rhythm. Now AI coding assistants write code instantly. Should you abandon the discipline that made you a better developer, or do TDD and AI work together? In this post I will use Kiro – an AI-powered IDE that enables developers build software from prototype to production through spec-driven development, intelligent agent assistance, and automated workflows. Before we see how AI handles TDD, let’s revisit the cycle that makes it work: Red (write a failing test), Green (make it pass with minimal code), Refactor (clean up while keeping tests green). This rhythm isn’t just methodology—it’s the discipline that prevents us from writing code we don’t need. For my experiment I’ve decided to use Roy Osherove’s “ String Calculator TDD Kata “, however using such a well known TDD Kata results in the LLM solving it using one of the many implementations that already exist out there, so instead before starting I have asked my trusty AI to suggest