An eleven node n8n workflow that writes alt text for every new Shopify product photo. It reacts to the products/create webhook, pulls the product media through the GraphQL Admin API, sends each image without alt text to Google Gemini for a real description of what is in the frame, then writes the result back with the fileUpdate mutation and sends you a Telegram digest.
- Validated workflow JSON, import and attach credentials
- Shopify GraphQL Admin API 2026-04, no deprecated REST product endpoints
- Gemini 2.5 Flash vision call, free tier friendly
- Skips images that already have alt text, so hand written copy survives
- Alt text cleaned and capped at 125 characters
- Telegram digest per product, optional
- Works on n8n Cloud and self hosted