Cart Discount Coordination Engine
Three systems, one price - in the cart and at checkout.
Customers were seeing one price in the cart and a different one at checkout - a
trust-eroding problem generating recurring support tickets. Built an event-driven
coordination layer that detects the active discount mode across Shopify, Rebuy Smart
Cart, and manual input, and calculates accurate prices in real time. 12+ months in
production, zero critical incidents, pricing-discrepancy complaints eliminated
entirely.
JavaScript · Event-Driven Architecture · Shopify Ajax Cart · Rebuy Smart Cart
FounderVoice AI
Generic AI output vs. a founder's actual voice, side by side.
Founder writing is chunked, embedded, and stored in Pinecone under that founder's
namespace. A prompt is embedded the same way, matched against those chunks, and used
to ground an OpenAI completion in their actual style - rendered next to the same
prompt run through a generic model, for direct comparison.
Next.js · TypeScript · OpenAI API · Pinecone
The Orbit Brief
Every question takes the right path to a grounded answer.
A live corpus of NASA news is ingested into SQL as the source of truth, with each
article chunked and embedded into Pinecone for semantic search. A selector agent
reads each question and routes it to the right retrieval path: SQL for dates and
recency, semantic or hybrid search for topics. An aggregator then composes a single
answer grounded in what was retrieved, with links back to the original NASA articles.
TypeScript · Multi-Agent RAG · Pinecone · OpenAI API · SQL