shop_mcp_server
An MCP server in Rails that gives Claude real access to a store's products, orders and inventory, with semantic search on pgvector.
Rails 8.1 · MCP Ruby SDK · PostgreSQL · pgvector · Voyage AI · RSpec
AI and agentic commerce
ai_shop_assistant
A shopping chat where the AI searches Shopify's live catalog over MCP instead of making products up.
Rails 8.1 · RubyLLM · Gemini · Hotwire · Solid Queue · MongoDB
product_geo_agent
An AI agent that scores how discoverable a Shopify product is to AI shopping assistants (GEO and AEO).
Rails 8.1 · little_ghost · Gemini · Shopify Storefront API · RSpec
support_engineer
A Rails support agent, in progress, that looks up real order data with tools and is designed to ask a human before any risky action.
Rails 8.1 · PostgreSQL · RubyLLM · Groq · RSpec
ucp_catalog
A Ruby gem, in early development, for talking to any Universal Commerce Protocol (UCP) catalog API through one interface, starting with Shopify's Global Catalog.
Ruby gem · OAuth2 client credentials · RSpec
little_ghost (open-source contributions)
Three merged pull requests in the little_ghost Ruby agent framework, fixing bugs I found while building product_geo_agent: #112, #113 and #115.
Ruby · Gemini · agent framework
Open-source contributions
While building product_geo_agent on the little_ghost Ruby agent gem with Gemini, I hit three bugs in the gem itself. I reproduced each one, reported it, and sent a fix. All three were merged upstream and released in little_ghost 0.11.0.
- Replay Gemini thought signatures across multi-turn tool calls: Gemini expects its thought signatures back on later turns of a tool-calling conversation, and the gem did not send them.
- Send the original function name in functionResponse.name: tool results went back to Gemini with the call id instead of the function name.
- Preserve Agent lifecycle hooks when building execution snapshots: hooks on an Agent subclass were silently skipped, with no error and a normal-looking response.
I also filed ruby_llm-mcp#155 after the gem crashed on Shopify's MCP handshake response.
Past work: Shopify and BigCommerce apps
In my previous role I was part of the team that built and shipped five public Shopify apps (three also on BigCommerce), from architecture through App Store publishing and merchant support. They covered:
- Structured data (JSON-LD) and SEO tooling for rich results and AI search.
- Real-time product, inventory and order sync between supplier and retailer stores.
- Country-based visitor redirects with pop-up and automatic options.
- Fake and invalid email detection on orders to prevent order scams.
I also built an Amazon Import & Sync System on Amazon SP-API that keeps listings, variants and images in step between Amazon and e-commerce stores (client work, not public).
Work with me
These projects are the evidence behind my services: full-stack Ruby on Rails development, AI engineering, Shopify and e-commerce and AI discoverability.