blog-schema
Generate complete JSON-LD schema markup for blog posts including BlogPosting, Person, Organization, BreadcrumbList, FAQPage, and ImageObject. Validates against Google requirements and warns about deprecated types. Use when user says "schema", "blog schema", "json-ld", "structured data", "schema markup", "generate schema".
How do I install this agent skill?
npx skills add https://github.com/agricidaniel/claude-blog --skill blog-schemaIs this agent skill safe to install?
- Gen Agent Trust Hubpass
The skill is a configuration guide for generating SEO structured data. It is generally safe but is susceptible to indirect prompt injection because it processes untrusted blog content into structured fields without sanitization.
- Socketpass
No alerts
- Snykpass
Risk: LOW · No issues
- Runlayerpass
1 file scanned · No issues
What does this agent skill do?
Blog Schema: JSON-LD Structured Data Generation
Generates complete, validated JSON-LD schema markup for blog posts using the @graph pattern. Combines multiple schema types into a single script tag with stable @id references for entity linking.
Workflow
Step 1: Read Content
Read the blog post and extract all schema-relevant data:
- Title (headline)
- Author (name, job title, social links, credentials)
- Dates (datePublished, dateModified / lastUpdated)
- Description (meta description)
- FAQ section (question and answer pairs)
- Images (cover image URL, dimensions, alt text; inline images)
- Organization info (site name, URL, logo)
- Word count (approximate from content length)
- Tags/categories (for BreadcrumbList category)
- Slug (from filename or frontmatter)
Step 2: Generate BlogPosting Schema
Complete BlogPosting with all required and recommended properties:
{
"@type": "BlogPosting",
"@id": "{siteUrl}/blog/{slug}#article",
"headline": "Post title (max 110 chars)",
"description": "Meta description (150-160 chars)",
"datePublished": "YYYY-MM-DD",
"dateModified": "YYYY-MM-DD",
"author": { "@id": "{siteUrl}/author/{author-slug}#person" },
"publisher": { "@id": "{siteUrl}#organization" },
"image": { "@id": "{siteUrl}/blog/{slug}#primaryimage" },
"mainEntityOfPage": {
"@type": "WebPage",
"@id": "{siteUrl}/blog/{slug}"
},
"wordCount": 2400,
"articleBody": "First 200 characters of content as excerpt..."
}
Required properties: @type, headline, datePublished, author, publisher, image. Recommended properties: description, dateModified, mainEntityOfPage, wordCount, articleBody (excerpt).
Step 3: Generate Person Schema
Author schema with stable @id for cross-referencing:
{
"@type": "Person",
"@id": "{siteUrl}/author/{author-slug}#person",
"name": "Author Name",
"jobTitle": "Role or Title",
"url": "{siteUrl}/author/{author-slug}",
"sameAs": [
"https://twitter.com/handle",
"https://linkedin.com/in/handle",
"https://github.com/handle"
]
}
Optional properties (include when available):
alumniOf- Educational institution (Organization type)worksFor- Employer (reference to Organization @id if same entity)
Step 4: Generate Organization Schema
Blog's parent organization entity:
{
"@type": "Organization",
"@id": "{siteUrl}#organization",
"name": "Organization Name",
"url": "{siteUrl}",
"logo": {
"@type": "ImageObject",
"url": "{siteUrl}/logo.png",
"width": 600,
"height": 60
},
"sameAs": [
"https://twitter.com/org",
"https://linkedin.com/company/org",
"https://github.com/org"
]
}
Logo requirements: must be a valid image URL. Google recommends logos be 112x112px minimum, 600px wide maximum. Rectangular logos preferred for BlogPosting publishers.
Step 5: Generate BreadcrumbList
Navigation breadcrumb schema showing content hierarchy:
{
"@type": "BreadcrumbList",
"@id": "{siteUrl}/blog/{slug}#breadcrumb",
"itemListElement": [
{
"@type": "ListItem",
"position": 1,
"name": "Home",
"item": "{siteUrl}"
},
{
"@type": "ListItem",
"position": 2,
"name": "Category Name",
"item": "{siteUrl}/blog/category/{category-slug}"
},
{
"@type": "ListItem",
"position": 3,
"name": "Post Title",
"item": "{siteUrl}/blog/{slug}"
}
]
}
If no category is available, use "Blog" as the second breadcrumb item with
{siteUrl}/blog as the URL.
Step 6: Generate FAQPage Schema
Extract Q&A pairs from the blog post's FAQ section:
{
"@type": "FAQPage",
"@id": "{siteUrl}/blog/{slug}#faq",
"mainEntity": [
{
"@type": "Question",
"name": "What is the question?",
"acceptedAnswer": {
"@type": "Answer",
"text": "The complete answer text (40-60 words with statistic)."
}
}
]
}
Important note: Google restricted FAQ rich results to government and health sites since August 2023. However, FAQ schema markup still provides value because:
- AI systems (ChatGPT, Perplexity, Gemini) extract FAQ data for citations
- It structures content for future rich result eligibility changes
- It improves content organization signals
Step 7: Generate VideoObject (if videos present)
For each YouTube video embedded in the post, generate a VideoObject schema:
{
"@type": "VideoObject",
"@id": "{siteUrl}/blog/{slug}#video-{index}",
"name": "Video title",
"description": "Video description excerpt (first 200 chars)",
"thumbnailUrl": "https://img.youtube.com/vi/{videoId}/hqdefault.jpg",
"uploadDate": "{ISO 8601 date}",
"contentUrl": "https://www.youtube.com/watch?v={videoId}",
"embedUrl": "https://www.youtube.com/embed/{videoId}",
"duration": "PT{M}M{S}S",
"interactionStatistic": {
"@type": "InteractionCounter",
"interactionType": { "@type": "WatchAction" },
"userInteractionCount": {viewCount}
}
}
Add each VideoObject to the @graph array. Use #video-1, #video-2 etc. for
the @id fragment. Extract video metadata from the embed's noscript fallback or
from YouTube Data API if available via blog-google.
Step 7.5: Generate ImageObject
Cover image schema for the post's primary image:
{
"@type": "ImageObject",
"@id": "{siteUrl}/blog/{slug}#primaryimage",
"url": "https://cdn.pixabay.com/photo/.../image.jpg",
"width": 1200,
"height": 630,
"caption": "Descriptive caption matching alt text"
}
Image requirements:
- URL must be crawlable and publicly accessible
- Width and height should reflect actual image dimensions
- Caption should match or closely align with the image alt text
- Preferred dimensions: 1200x630 (OG-compatible) or 1920x1080
Step 8: Validate & Warn
Check for deprecated schema types and apply validation rules:
NEVER use these deprecated types:
- HowTo - Deprecated September 2023 (Google no longer shows rich results)
- SpecialAnnouncement - Deprecated July 2025
- Practice Problem - Deprecated (education markup)
- Dataset - Deprecated for general use
- Sitelinks Search Box - Deprecated
- Q&A - Deprecated January 2026 (distinct from FAQPage)
Validation checks:
- All @id references resolve to entities within the @graph
- dateModified is equal to or after datePublished
- headline does not exceed 110 characters
- description is between 50-160 characters
- All URLs are absolute (not relative)
- Image dimensions are positive integers
- BreadcrumbList positions are sequential starting from 1
- FAQPage has at least 2 questions
AI citation optimization note: Pages using 3 or more schema types have approximately 13% higher AI citation likelihood. This skill generates up to 7 types (BlogPosting, Person, Organization, BreadcrumbList, FAQPage, ImageObject, VideoObject) to maximize both search engine understanding and AI extraction.
Step 9: Output
Combine all schemas into a single <script> tag using the @graph pattern:
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@graph": [
{ "@type": "BlogPosting", ... },
{ "@type": "Person", ... },
{ "@type": "Organization", ... },
{ "@type": "BreadcrumbList", ... },
{ "@type": "FAQPage", ... },
{ "@type": "VideoObject", ... },
{ "@type": "ImageObject", ... }
]
}
</script>
@graph pattern benefits:
- Single script tag instead of multiple - cleaner HTML
- Entity linking via stable @id references (e.g., author references Person by @id)
- Google and AI systems parse @graph arrays correctly
- Easier to maintain and update as a single block
Output options:
- Embedded HTML - Ready to paste into
<head>or before</body> - Standalone JSON - For CMS schema fields or API injection
- MDX component - If the project uses MDX, wrap in a component
Save the generated schema to the blog post file or to a separate schema file as the user prefers.
How can the creator link this skill?
Add the canonical catalog link to the repository README so users can inspect current installs and available audits. The publishing guide covers the complete discovery path.
<a href="https://skillzs.dev/skills/agricidaniel/claude-blog/blog-schema">View blog-schema on skillZs</a>