seo-schema

SKILL.md

Schema Markup Analysis & Generation

Detection

Extract JSON-LD with "${CLAUDE_PLUGIN_ROOT}/scripts/claude-seo" run parse_html.py --url <url> --json
(or scan <script type="application/ld+json"> in the page source). Flag any
block without @context or @type: Google cannot attach it to an entity (a
rating in such a block does not reach the Product).

Check for Microdata (itemscope, itemprop)

Check for RDFa (typeof, property)

Always recommend JSON-LD as primary format (Google's stated preference)

Validation

Check required properties per schema type

Validate against Google's supported rich result types

Test for common errors:

Missing @context

Invalid @type

Wrong data types

Placeholder text

Relative URLs (should be absolute)

Invalid date formats

Flag deprecated types (see below)

Schema Type Status (as of June 2026)

Read ../seo/references/schema-types.md for the full list. Key rules:

ACTIVE (recommend freely):

Organization, LocalBusiness, SoftwareApplication, WebApplication, Product (with Certification markup as of April 2025), ProductGroup, Offer, Service, Article, BlogPosting, NewsArticle, Review, AggregateRating, BreadcrumbList, WebSite, WebPage, Person, ProfilePage, ContactPage, VideoObject, ImageObject, Event, JobPosting, Course, DiscussionForumPosting

VIDEO & SPECIALIZED (recommend freely):

BroadcastEvent, Clip, SeekToAction, SoftwareSourceCode

See schema/templates.json for ready-to-use JSON-LD templates for these types.

JSON-LD and JavaScript rendering: Google supports structured data generated with JavaScript, but its "Generate structured data with JavaScript" guide (last updated 2025-12-10) warns that dynamically generated Product markup can make Shopping crawls less frequent and less reliable for fast-changing price and availability. For time-sensitive markup (especially Product, Offer), include JSON-LD in the initial server-rendered HTML.

NO RICH RESULTS, KEEP IF USEFUL:

FAQPage: Google retired FAQ rich results for ALL sites on May 7, 2026 (supersedes the Aug 2023 gov/health restriction). No Google SERP rich-result benefit; flag existing FAQPage at Info (not Critical) rather than removal. For genuine user Q&A pages, use QAPage.

DEPRECATED (never recommend):

HowTo: Rich results removed September 2023

SpecialAnnouncement: Deprecated July 31, 2025

CourseInfo, EstimatedSalary, LearningVideo: Retired June 2025

ClaimReview: No Search rich result since June 2025. Google's Fact Check Explorer still uses the markup, so fact-checking publishers may keep it; never recommend it for SERP features

VehicleListing: Retired from rich results June 2025

Practice Problem: Deprecation notice 2025-11-05; tooling support removed starting January 2026; documentation removed 2026-01-06

Search Console / Rich Results Test / appearance-filter support for CourseInfo, ClaimReview, EstimatedSalary, LearningVideo, SpecialAnnouncement, VehicleListing was removed 2025-09-09 (Search Console API through December 2025).

Still supported (despite earlier phase-out notices):

Book Actions: NOT deprecated. The June 2025 phase-out banner was removed on 2025-11-05 because a Search feature still uses the markup.

Supported for Dataset Search only:

Dataset: Not discontinued; consumed by Google Dataset Search, with no Google Search rich-result surface. Don't advise removal as if it were killed.

Still supported (do not flag):

QAPage (expanded comment-thread properties 2026-03-24), DiscussionForumPosting, Education Q&A (Quiz / eduQuestionType=Flashcard). For e-commerce, hasAdultConsideration (added 2026-05-20; value https://schema.org/SexualContentConsideration) is required for adult products. Product.category accepts Text, CategoryCode, or arrays mixing both.

Generation

When generating schema for a page:

Identify page type from content analysis

Select appropriate schema type(s)

Generate valid JSON-LD with all required + recommended properties

Include only truthful, verifiable data. Use placeholders clearly marked for user to fill

Validate output before presenting

For review markup, reject fake reviews and undisclosed incentivized reviews.
An incentive must be clearly and prominently disclosed on the page.

Common Schema Templates

Organization

{
  "@context": "https://schema.org",
  "@type": "Organization",
  "name": "[Company Name]",
  "url": "[Website URL]",
  "logo": "[Logo URL]",
  "contactPoint": {
    "@type": "ContactPoint",
    "telephone": "[Phone]",
    "contactType": "customer service"
  },
  "sameAs": [
    "[Facebook URL]",
    "[LinkedIn URL]",
    "[Twitter URL]"
  ]
}

LocalBusiness

{
  "@context": "https://schema.org",
  "@type": "LocalBusiness",
  "name": "[Business Name]",
  "address": {
    "@type": "PostalAddress",
    "streetAddress": "[Street]",
    "addressLocality": "[City]",
    "addressRegion": "[State]",
    "postalCode": "[ZIP]",
    "addressCountry": "US"
  },
  "telephone": "[Phone]",
  "openingHours": "Mo-Fr 09:00-17:00",
  "geo": {
    "@type": "GeoCoordinates",
    "latitude": "[Lat]",
    "longitude": "[Long]"
  }
}

Article/BlogPosting

{
  "@context": "https://schema.org",
  "@type": "Article",
  "headline": "[Title]",
  "author": {
    "@type": "Person",
    "name": "[Author Name]"
  },
  "datePublished": "[YYYY-MM-DD]",
  "dateModified": "[YYYY-MM-DD]",
  "image": "[Image URL]",
  "publisher": {
    "@type": "Organization",
    "name": "[Publisher]",
    "logo": {
      "@type": "ImageObject",
      "url": "[Logo URL]"
    }
  }
}

Output

SCHEMA-REPORT.md: detection and validation results

generated-schema.json: ready-to-use JSON-LD snippets

Validation Results

Schema
Type
Status
Issues

...
...
✅/⚠️/❌
...

Recommendations

Missing schema opportunities

Validation fixes needed

Generated code for implementation

Error Handling

Scenario
Action

URL unreachable
Report connection error with status code. Suggest verifying URL and checking if the page requires authentication.

No schema markup found
Report that no JSON-LD, Microdata, or RDFa was detected. Recommend appropriate schema types based on page content analysis.

Invalid JSON-LD syntax
Parse and report specific syntax errors (missing brackets, trailing commas, unquoted keys). Provide corrected JSON-LD output.

Deprecated schema type detected
Flag the deprecated type with its retirement date. Recommend the current replacement type or advise removal if no replacement exists.