Building a Claude-Powered Product Adviser for Shopify

Start with the job, not the model

A product adviser should help a buyer narrow a catalog, explain tradeoffs, and cite the product facts used. It should not answer every question about the internet.

For a footwear store, define:

Help buyers choose among current boots by size, width, material,
weather use, sole, budget, and delivery market.

Use controlled commerce data

The assistant needs:

• stable product and variant IDs
• active market and currency
• inventory
• named comparison attributes
• canonical product URLs
• policy URLs
• exclusions and warnings

This data may come from Shopify APIs or an approved export. Do not rely on an occasional crawl of the public page for cart-critical stock.

Separate retrieval from generation

Retrieval selects relevant product records or documents. Claude then explains the result. The application should filter hard constraints before asking the model to write a recommendation.

If size 13 is unavailable, it should be removed before generation rather than expecting the model to notice a paragraph.

Require citations inside the store experience

For each recommendation, link to the canonical product and show the fields used:

Recommended because: available in US 13, standard D width,
full-grain leather, rubber outsole. Not waterproof.

The answer should distinguish catalog facts from generated explanation.

Add guardrails

• Never invent stock, delivery, certification, or safety claims.
• Recheck price and inventory before cart creation.
• State when a required attribute is missing.
• Hand regulated or personal-safety questions to support.
• Preserve the buyer’s selected market.
• Log product IDs and source records used.

Anthropic’s API web-search tool supports source controls for web retrieval, but a store adviser should normally prefer the merchant’s approved catalog for product facts and use the web only for an explicitly designed purpose.

Source: Anthropic web search tool documentation.

Define the handoff

The adviser can link to the product, create a draft cart through an approved Shopify integration, or send the conversation to support. The merchant must define which action is permitted.

This is a product-development project, not an organic-visibility tactic. Building it does not make the same products rank in the public Claude experience.