- Shopify launched Canvas, where its AI agent Sidekick edits the real theme code behind a store from a chat, with the merchant directing and reviewing the results.
- Shopify simplified its theme architecture so Sidekick can read it. Third-party themes, app blocks and extensions are not in the first release, and Canvas is desktop-only.
- Before adopting it, ask who approves AI-made changes, whether you can see which files changed, and whether your store relies on unsupported features.
The merchant becomes the reviewer
Shopify has launched Canvas, a design surface where merchants build their online store by talking to Sidekick, the company's AI agent. Shopify says it is rolling out over the coming days. The merchant describes what they want, and the agent makes the changes.
The shift here is not the chat box. It is who does the work. In Shopify's own telling, originality used to be costly: a truly custom store demanded coding skill, a paid developer, or patience with a clumsy settings menu. Increasingly the agent does the building, and the merchant's job shifts toward directing and judging the result.
Shopify describes this as a collaboration. Sidekick asks questions, proposes approaches and takes feedback. The merchant keeps making the design decisions. Merchants can also still click an element and edit it directly.
Even so, the role is changing. A reviewer needs to know what to look for. Anyone approving an AI's work needs a clear view of what was changed.
What Canvas actually does
Canvas lays out every page of the store together. A merchant can pan across the whole store, then zoom into one detail.
The preview is not a mock-up. Shopify says it runs the store's actual code rather than showing a static picture. Buttons and motion work as they would on the live site. Key pages can be viewed with different products and collections, and at different screen sizes.
How the agent works
Shopify describes three design choices behind Canvas. Each one shows how the system is built.
First, Sidekick now works directly on a theme's files. A theme is the set of templates and files that define how a store looks and behaves. Sidekick follows instructions and skills written for store building. It can make coordinated changes across many files.
Second, Shopify simplified its theme architecture. The aim was to make how a store is organised and how it behaves easier for Sidekick to follow and modify. In plain terms, the platform was reshaped so a machine could read it.
Third, Sidekick checks its own work. It validates its code and takes screenshots of how the changes landed in Canvas. It uses both signals to refine the result before handing it back. Because the merchant and the agent look at one shared view of the store, each can judge the same result at the same moment.
Shopify's design director, Austin Knight, said that getting Sidekick to write code was easy. Guiding it to good design decisions took far longer. Each theme has a design contract, a curated set of patterns, and a large body of evaluation data.
The claim to weigh
Ben Sehl, a Shopify product director and Kotn co-founder, drew on his own history. When he started Kotn twelve years ago, a rough working store took him two weeks, and he could already code. His claim now is that a founder can reach a fully custom store in twenty minutes.
This is a company executive describing his own product. Shopify has not published a test of the claim in the material reviewed. Treat it as the vendor's view.
What is not in the launch
Shopify says Canvas does not replace the existing editor yet. Sehl said there are gaps still to close.
TechCrunch lists several things missing from the first release. Themes built by outside developers are not supported. Neither are app blocks and extensions. Markets, translations, rollouts and theme updates are also absent. Canvas is desktop-only. Shopify told TechCrunch it plans to add support over time.
For a store that relies on third-party themes or extensions, that gap matters. It limits where Canvas can be used today.
Questions to put to your team
Shopify's material does not describe how changes are logged or approved. It also does not describe how a store owner can inspect what the agent changed. These are questions for Shopify and for whoever runs your store.
Ask who in your organisation approves a change that the agent made. Ask whether you can see exactly which theme files were altered. Ask whether your store depends on any feature from the list above. And ask who is accountable if an AI-written change breaks checkout or a campaign page.
The lesson here is that, for stores that adopt Canvas, the store becomes something an AI edits and a person supervises. Shopify calls the tool early, and the sources cover building and editing, not long-term upkeep. Supervision still needs a process, not just a chat window. Faster building raises the volume of changes, and every change still needs an owner.
Produced by the WebPulse Newsroom with AI assistance from the original reporting credited below, and checked against that source by our editorial review. How we use AI.
Original reporting: Shopify.
