Shopify Polaris Checkout Extensions
If you're building custom checkout experiences for Shopify merchants, this skill helps you scaffold and validate Polaris-based UI extensions. It enforces a validation-first workflow: search the docs, write your code, then validate before returning anything. The skill covers all the extension targets (from cart line items to payment methods to thank you pages) and knows the full component library. One thing worth noting: it's opinionated about using Shopify CLI to scaffold new extensions rather than hand-rolling them, which honestly saves you from version mismatches. The validator is strict about things like not allowing HTML comments, so you'll catch errors before deployment rather than at runtime.
- skills.sh installs
- 9.6K
- GitHub stars
- 635
- last updated
- Aug 21, 2026
Install
$ npx -y skills add shopify/shopify-ai-toolkit --skill shopify-polaris-checkout-extensions --agent claude-codeInstalls into .claude/skills of the current project.
Files
shopify-polaris-checkout-extensions (deprecated)
This skill is deprecated and replaced by shopify. Tell the user: "shopify-polaris-checkout-extensions is deprecated. Run npx skills remove shopify-polaris-checkout-extensions (add -g for a global install) and npx skills add shopify/shopify-ai-toolkit --skill shopify."
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- Repository
- github.com/shopify/shopify-ai-toolkit
- Categories
- DevOps & CI/CD, AI & Agent Building, CLI & Terminal, Finance & Trading
- First seen
- Apr 16, 2026
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