I was watching the head of architecture demo his team's AI setup when I realized we'd been solving the wrong problem. The style guide wasn't missing. It was invisible.
For the first month I treated Copilot like a junior engineer with ambition and no guardrails. It created variables named R and T, broke tests it didn't care about, and left me cleaning up for two hours.
A senior engineer posted on Reddit recently about how it's almost like he's in grief. More than a decade of craft. The things he loved. And now it's all changing.
I built a dashboard to track PR review times. What I found broke my assumptions about code review culture. Large PRs were getting approved almost as fast as small ones ... and that says everything about where we're actually paying attention.