Theme editor.
An AI-aware Shopify theme editor. Every change is a diff, every save runs theme-check, every publish requires explicit approval. Your live theme is sacred.
What it is
A web-based Shopify Liquid editor that pairs a code surface with @Atlas. You can describe the change in plain English ("tighten the hero spacing on mobile, add a quote block above the testimonials") and the editor produces a diff against your draft theme.
How it works
- Connects to a draft theme. never to the live one.
- Generates a diff for every change before applying it.
- Runs theme-check on save and blocks publish on errors.
- Previews the change on the draft theme URL with one click.
- History panel keeps every diff, revertible at any time.
When to use it
For section tweaks, copy adjustments, schema additions, accessibility passes, A/B layout variants, and refactors that span multiple Liquid files. Use it when you would otherwise context-switch between the Shopify code editor, theme-check CLI and your IDE.
Limitations
- App proxy and embed-app code are out of scope. those live in your app codebase.
- Theme JSON migrations require a manual confirmation, not auto-apply.
- Themes locked by Online Store 2.0 sections must keep their schema contracts.
Edit your theme without breaking your store.
Diff-driven, preview-first, theme-check on every save.