This case study shows how architect-led, AI-accelerated engineering enabled a lean team to replace a legacy platform dramatically faster while maintaining enterprise-grade security and governance, including key takeaways that can apply to any modernization effort. A trusted Kansas City insurer returned to Keyhole to lead a mission-critical modernization. With two senior Keyhole consultants leading architecture and delivery, the program is on track to replace the entire platform — UI, services, database, and administrative tooling — in approximately five months through structured, AI-accelerated workflows, rather than the 18-24 month estimated without AI tooling.