On October 1, Shopifyintroduced Canvas, a workspace where merchants design their store by talking to Sidekick, Shopify’s AI agent. Sidekick edits the theme files, and the changes land on Canvas in real time, with every page laid out side by side. ” Sidekick already made more than 25 million theme edits in the first half of 2026, by Shopify’s count. Canvas is inearly accessfor certain stores, and Shopify says it is not replacing the existing editor yet. What Sidekick checks, and what it can’t Shopify describes how Sidekick checks its own work: it “validates its code and reviews screenshots to inspect how its changes landed.