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Product

Development
product

Product is an Agent Skill for development published in the thedaviddias/Front-End-Checklist repository on GitHub: a SKILL.md instruction file an AI agent can load to do this task.

Use when auditing e-commerce product pages or implementing structured data for a shop. Applies to any page selling or describing a specific product.

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QUICK START

How to use this skill

Bring this guide into your coding agent with a prompt tailored to the tool you use.

  1. Open your project in Codex.
  2. Copy and paste the prompt below.
  3. Review files and risks before approving any action.
Prompt to paste
Inspect the Agent Skill at https://github.com/thedaviddias/Front-End-Checklist/blob/HEAD/skills/product/SKILL.md and all supporting files. Report provenance, permissions, scripts, dependencies, and security risks. Propose an exact installation into .agents/skills/product, but wait for my approval before writing files or running scripts.

Copying this prompt does not install or run the skill. Review third-party files before use.

Add Product schema markup

Product schema enables Google to show price, availability, ratings, and review count directly in search results—rich results have significantly higher click-through rates than standard blue links.

Quick Reference

  • Add Product JSON-LD schema to every product page for rich result eligibility
  • Required for rich results: name, image, description, and offers (with price and priceCurrency)
  • Include aggregateRating for star ratings in search results
  • Prices in schema must match the prices displayed on the page

Check

Check each product page for a JSON-LD script block with @type 'Product'. Verify it includes: name, image, description, and an offers property with price, priceCurrency, and availability. Check that prices in schema match the visible page prices. Validate with Google's Rich Results Test.

Fix

Add a Product JSON-LD block to each product page. Required: name, image (array of URLs), description, offers.price, offers.priceCurrency, offers.availability. Recommended: aggregateRating (ratingValue, reviewCount), brand, sku, gtin13/gtin8/mpn.

Explain

Product structured data enables Google Shopping-style rich results in organic search, showing price, star ratings, and stock status directly in the SERP. These rich results have higher visual prominence and click-through rates. Without schema, Google can only show a plain blue link for your product pages.

Code Review

Find JSON-LD blocks with @type 'Product'. Verify required fields: name, image (must be absolute URL array), description, offers.price (numeric), offers.priceCurrency (ISO 4217 code), offers.availability (schema.org URL). Check that offers.price matches the visible price on the page. Validate that aggregateRating.reviewCount > 0 if rating is present. Run through Google's Rich Results Test.

For full implementation details, code examples, and framework-specific guidance, see references/rule.md.

Rule page: https://frontendchecklist.io/en/rules/seo/product