Live·Designer & engineer — end to end
Aya
Multi-tenant AI receptionist platform — live at 4 dental clinics in the Philippines, producing 50+ qualified leads. Niche-agnostic agent core, deterministic LangGraph loop, RAG with operator-visible citations, HMAC-signed booking.
Stack
Next.js 16TypeScriptSupabaseLangGraphOpenRouterpgvectorResendVercel
What's interesting
Deterministic agent state machine — agent cannot skip lead capture or double-save a contact.
RAG over operator-managed FAQs, services, and policies with chunk-level citations visible to the operator.
Pre-inference availability injection — LLM never fabricates appointment times.
Row-level security on every table for zero cross-business data leakage by design.
Multi-language: English, Filipino, Taglish, Cebuano.
Want a walkthrough or architecture deep-dive? Reach me at mbelteshazzar.bm.1247@gmail.com.