What 12 Months of AI-Generated Pull Requests Taught My Engineering Team

When our platform team adopted AI coding assistants across every repository in early 2025, I expected productivity gains. What I did not expect was that the most valuable lesson would come from the failures, not the successes. After reviewing roughly 4,200 merged pull requests where AI played a meaningful role in authoring code, the picture that emerged contradicts most of the marketing material I had read. The economic momentum behind this technology is undeniable, with the $644 billion USD bet...