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Shopify uses Helix checkpoints and quality gates to migrate its app to native code

shopify.engineering 8 min read Editor score 8/10

Helix guides LLMs through small, gated migrations from React Native to Swift and Kotlin, following a prescribed architecture; the Shopify app has more than 300 screens. The approach offers a practical model for keeping agent-generated code shippable.

What: Helix is a set of tools and skills that helps LLMs migrate Shopify app screens from React Native to native Swift and Kotlin.
How: It divides work into checkpoints, each gated by tests, visual review, adversarial code reviews, and engineer approval.
Why it matters: Small, reviewed increments and strict gates help engineers use LLMs for large migrations without accepting unverified code.

Helix turns React Native code into gated migration checkpoints for engineer approval. Sketched from the article's own text.

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