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 up when real users start sending messy messages.

This is the dev log of what I built, what broke, and what I learned.

What GraceSoft Sentinel Concierge Is

GraceSoft Sentinel Concierge is a WhatsApp concierge agent for service businesses.

Its job is simple:

answer FAQs

detect booking intent

suggest available slots

create bookings

escalate to a human when confidence drops

avoid sounding robotic while doing all of the above

Under the hood, it’s doing much more than that.

This became less of a chatbot project…