Few topics polarize the mid-market right now like AI coding. Vendor claims are big: fully autonomous programming, developer teams become obsolete, a single product owner builds software that used to require ten engineers. The counter-positions are just as loud: hallucinations, security risks, industrial-scale technical debt. Between the two camps sit executives and IT leaders with the sober question: What's actually true — and what should I as a decision-maker take away from it?
On April 22, 2026, I ran a webinar trying to answer that question empirically. The basis: a five-week experiment. A complete ERP/CRM system — 220,000 lines of code, 17 modules, 2,517 tests — written almost entirely by an AI coding agent (Claude Code). This article summarizes the core findings. It's aimed at decision-makers and project leaders in the mid-market who don't want to look at AI from the bird's-eye view, but need to know what actually happens when you deploy it in reality.