Autonomous Listing Agent

The agent passes your photo to Magic Hour, pulls the generated product shots back down, and assembles what the marketplace needs. Creating the listing and publishing it are separate tool calls, so a person reads the title, description, price and images before any of it is public.

The repository holds the three MCP integrations behind that: eBay, Etsy, and a file service that hands out short public URLs for the cases where a marketplace wants to fetch an image rather than be given one.

Most of the work was marketplace detail rather than agent logic. Both sides use OAuth 2.0, with PKCE where it is required, and they accept images in different ways, so each gets its own path. eBay also wants an account-deletion endpoint, which a Cloudflare Worker answers.

The context the agent carried was the other problem. I removed over a hundred redundant tool schemas and cut the framework’s 43 plugins to 7, all of which was being sent with every message to the model.

Four live runs on eBay so far and one on Etsy. eBay is the better exercised of the two paths, so the next runs go to Etsy.