80% of Anthropic's Production Code Is Now Written by Claude. Here Is What That Actually Means for Engineers.

Last week I shipped a full SaaS module without writing most of the code myself. Not a prototype. Not a one-off script. A production feature for VeloxSync: 10 database tables, 30-plus API endpoints, 12 frontend pages, Stripe billing integration, and 112 state academic standards mapped to AI-powered grade-band models. One extended Claude Code session, one engineer (me) directing and reviewing. That used to take weeks. This week, Anthropic published internal production data that explains why, and w...