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Install one skill and your agent will check the registry before every checkout, follow the recipe, hand challenges to you, and report back what it learned.

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Install

The skill installs through skills.sh and works with Claude Code, Cursor, Codex and other agents that support it. Then ask your agent to buy something:
buy https://shop.example.com/product/thing and stop before submitting payment

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What the skill teaches

1

Look the site up first

Query the registry for the page before touching the cart, sending only the stripped URL.
2

Follow the recipe phase by phase

Add to cart, contact, billing, payment, place order, then confirm the outcome.
3

Hand off any challenge

On 3-D Secure, a one-time code, a CAPTCHA or a silent block, stop and hand the page to a person. Never solve or guess.
4

Stop cleanly at a dead end

On a site that can never work unattended, stop and say which dead end it is.
5

Contribute what it learned

Submit a recipe after the run, including a dead end.

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Two skills, two jobs

Install both. They cover different halves of a purchase.

checkout-recipes

Driving merchant sites. Recipe anatomy, what each status means, the screening rules, and what gets a submission rejected.Open source and vendor-neutral. No Agent Vault account needed.

agent-vault

Paying with Agent Vault. Token grammar, the working agreement, the card fill order, challenge handling and troubleshooting.Ships inside the SDK package.
See Rules of engagement for what the agent-vault skill contains.

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Use the data without the skill

The registry is plain JSON. Nothing needs installing to read it:
See Look up a recipe.

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Work on the registry itself

The repository at github.com/selfxyz/agent-checkout-skill is a read-only export of the live registry, refreshed daily.
  • Pull requests that change recipes are closed with a pointer to Contribute a recipe.
  • Pull requests for the skill, schema, tooling and documentation are welcome.

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Supported platforms

Shopify, WooCommerce, Stripe Checkout, Stripe Payment Links, Lemon Squeezy, Paddle, Gumroad, BigCommerce, Squarespace Commerce, Wix Stores, Ecwid, Snipcart, FastSpring and Big Cartel. The bundled checkout-playbooks.md carries the per-platform detect, add-to-cart, card-field and place-order steps, and the failure taxonomy that sorts every failure into retryable, fixable or dead end.