The author of the article discusses their experience with using AI-powered coding tools, specifically Claude, and how it affected their happiness and productivity as a software engineer. They found that relying on AI-generated code led to feelings of depression and lethargy, and that writing code by hand was essential to their job satisfaction and effectiveness. The author now uses AI in a more controlled manner, using it to assist with specific tasks while still writing code themselves. This approach has helped them find a balance between productivity and happiness.