If you've been following AI coding tools this month, you've seen the quote everywhere:
"I don't prompt Claude anymore. I have loops running that prompt Claude. My job is to write loops." — Boris Cherny, Head of Claude Code at Anthropic
This isn't just a catchy soundbite. It represents a fundamental shift in how developers interact with AI coding agents — and it has massive cost implications that almost nobody is talking about.
The Evolution Nobody Asked For (But Everyone Needed)
The progression looks like this:
