2026-05-25·March 2026
Amazon
Two separate checkout/AWS outages on March 2 and March 5 caused 120K and 6.3M lost orders respectively, traced to AI-assisted code changes deployed without senior sign-off.
Vibe coding score
85/100Strong signals
Reasoning
Amazon had mandated 80% weekly usage of its AI coding assistant Kiro across engineering teams. Both outages were directly linked to AI-assisted code changes that passed QA but failed under production load. Amazon responded with a 90-day rule requiring senior engineer sign-off on all AI-assisted deployments — a strong implicit admission.