Is Agents Catalog API the source of truth for partner agentic channel (OpenAI)?

Hi folks - we’re trying to understand the Shopify → OpenAI data path for the commerce integration and what fields are actually synced.

We can map basics from Catalog responses (title/description/variantUrl/images/price..), but we’re trying to understand what Shopify considers authoritative for “agentic channels” and how to get best field coverage.

We’re looking at:

Questions

  1. For OpenAI, is the Agents Catalog API intended to be the canonical “store representation” / source-of-truth used to render products, price, availability, variants, URLs, etc.?

    Or is OpenAI powered by a separate “synced feed” generated by Shopify, and Catalog is primarily a discovery layer for other agentic channels?

  2. If Catalog is the source-of-truth:

  • where do missing feed-style fields come from (e.g., GTIN/MPN/sale windows, return window) Where are these expected to originate from?

    If there is a Shopify→OpenAI synced feed:

  • Is there an authoritative field list / mapping contract we can reference?

Thanks!