I Built a WhatsApp Booking Agent — The Hard Part Wasn’t AI

Building GraceSoft Sentinel Concierge: From WhatsApp Bot to Production Booking Agent I spent the last stretch building GraceSoft Sentinel Concierge — a WhatsApp-first concierge agent designed to handle customer enquiries, FAQs, bookings, and business handover without requiring users to download another app. What started as “a simple WhatsApp assistant” quickly turned into a full production exercise in systems design, operational resilience, and the kind of edge-case engineering that only shows u