Add Review schema markup

SkillCommerce & finance

The review skill is an agent skill for adding and auditing review schema markup. It guides an AI agent through checking pages for Review and AggregateRating structured data, fixing missing or invalid markup, and verifying star-rating rich result eligibility for e-commerce and review sites.

Available today. Use it from your connected AI after setup.

Have an agent environment that supports loading skills.

Then ask your AI: use the Add Review schema markup skill

What your AI can do with it

  • Inspect page source or rendered DOM for JSON-LD Review and AggregateRating blocks
  • Verify required properties: ratingValue, ratingCount/reviewCount, bestRating
  • Add AggregateRating JSON-LD nested inside the main entity such as Product or LocalBusiness
  • Run URLs through Google's Rich Results Test to validate markup
  • Flag routes or templates where search-facing output violates the rule
  • Explain which page types are eligible for star-rating rich results

Getting started

  1. Have an agent environment that supports loading skills.
  2. Add the review skill to the agent's available skills.
  3. Give the agent a product page, local business page, recipe, app, book page, or review aggregator page to check.
  4. Ask it to audit rich result eligibility or add Review and AggregateRating schema markup.
  5. Validate the resulting markup with Google's Rich Results Test before deploying.

What this skill tells your AI

The instructions your AI receives, as published by thedaviddias/front-end-checklist in skills/review/SKILL.md and read by ahel’s review.

Star ratings in search results increase click-through rates by up to 35%; incorrect or missing schema means competitors with valid markup capture that visibility advantage.

Quick Reference

  • Use Review schema on individual review pages and AggregateRating on product/service pages to earn star-rating rich results
  • AggregateRating requires ratingValue, ratingCount or reviewCount, and valid bestRating / worstRating values
  • Ratings must reflect genuine user reviews — Google penalises self-serving or fabricated ratings
  • Validate markup with Google's Rich Results Test before deploying

Check

Inspect the page source or rendered DOM for JSON-LD blocks containing "@type": "Review" or "@type": "AggregateRating". Verify required properties are present: ratingValue, ratingCount/reviewCount, bestRating. Run the URL through Google's Rich Results Test.

Fix

Add a JSON-LD <script> block with AggregateRating nested inside the main entity (Product, LocalBusiness, etc.). Populate ratingValue and ratingCount from real review data. Remove any schema on pages with no genuine user reviews.

Explain

Explain how Review and AggregateRating schema work, which page types are eligible for star-rating rich results in Google Search, and why fabricated ratings violate Google's structured data guidelines.

Code Review

Review metadata generation, rendered HTML, structured data, and response headers related to Add Review schema markup. Flag exact routes or templates where search-facing output violates the rule, and describe how to verify the final page output.


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

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

Signals

GitHub stars
74k
Forks
7k
Last commit
Aug 2026
Hacker News mentions
20

Questions

When should the review skill be used?
Use it on product pages, local business pages, recipes, apps, books, and any page that aggregates user reviews, or when auditing rich result eligibility for e-commerce or review sites.
What properties does AggregateRating require?
It requires ratingValue, ratingCount or reviewCount, and valid bestRating and worstRating values.
Can ratings be fabricated to earn stars?
No. Ratings must reflect genuine user reviews. Google penalises self-serving or fabricated ratings, and schema should be removed from pages with no genuine user reviews.
Advanced
Item type
skill
Key
review-thedaviddias
Source
github.com/thedaviddias/front-end-checklist