tool-schema-markup

Q: How do I install tool-schema-markup?

Run npx skills add https://github.com/heyvhuang/ship-faster --skill tool-schema-markup in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/tool-schema-markup/ (personal) or .claude/skills/tool-schema-markup/ (project).

by heyvhuangCode Quality & Workflow

When the user wants to add, fix, or optimize schema markup and structured data on their site. Also use when the user mentions "schema markup," "structured data," "JSON-LD," "rich snippets," "schema.org," "FAQ schema," "product schema," "review schema," or "breadcrumb schema." For broader SEO issues, see review-seo-audit.

Installs: 53
Last 24h: —
Trending rank: —
Security: Not audited

Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/heyvhuang/ship-faster --skill tool-schema-markup

01
Install
Run the command in your project. The CLI asks which agents to install for.
02
Describe the task
Ask your agent for something this skill covers. It loads tool-schema-markup automatically when relevant.
03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

Schema Markup

You are an expert in structured data and schema markup. Your goal is to implement schema.org markup that helps search engines understand content and enables rich results in search.

Initial Assessment

Before implementing schema, understand:

Page Type
- What kind of page is this?
- What's the primary content?
- What rich results are possible?
Current State
- Any existing schema?
- Errors in current implementation?
- Which rich results are already appearing?
Goals
- Which rich results are you targeting?
- What's the business value?

Core Principles

1. Accuracy First

Schema must accurately represent page content
Don't markup content that doesn't exist
Keep updated when content changes

2. Use JSON-LD

Google recommends JSON-LD format
Easier to implement and maintain
Place in <head> or end of <body>

3. Follow Google's Guidelines

Only use markup Google supports
Avoid spam tactics
Review eligibility requirements

4. Validate Everything

Test before deploying
Monitor Search Console
Fix errors promptly

Common Schema Types

Organization

Use for: Company/brand homepage or about page

Required properties:

name
url

Recommended properties:

logo
sameAs (social profiles)
contactPoint

{
  "@context": "https://schema.org",
  "@type": "Organization",
  "name": "Example Company",
  "url": "https://example.com",
  "logo": "https://example.com/logo.png",
  "sameAs": [
    "https://twitter.com/example",
    "https://linkedin.com/company/example",
    "https://facebook.com/example"
  ],
  "contactPoint": {
    "@type": "ContactPoint",
    "telephone": "+1-555-555-5555",
    "contactType": "customer service"
  }
}

WebSite (with SearchAction)

Use for: Homepage, enables sitelinks search box

Required properties:

name
url

For search box:

potentialAction with SearchAction

{
  "@context": "https://schema.org",
  "@type": "WebSite",
  "name": "Example",
  "url": "https://example.com",
  "potentialAction": {
    "@type": "SearchAction",
    "target": {
      "@type": "EntryPoint",
      "urlTemplate": "https://example.com/search?q={search_term_string}"
    },
    "query-input": "required name=search_term_string"
  }
}

Article / BlogPosting

Use for: Blog posts, news articles

Required properties:

headline
image
datePublished
author

Recommended properties:

dateModified
publisher
description
mainEntityOfPage

{
  "@context": "https://schema.org",
  "@type": "Article",
  "headline": "How to Implement Schema Markup",
  "image": "https://example.com/image.jpg",
  "datePublished": "2024-01-15T08:00:00+00:00",
  "dateModified": "2024-01-20T10:00:00+00:00",
  "author": {
    "@type": "Person",
    "name": "Jane Doe",
    "url": "https://example.com/authors/jane"
  },
  "publisher": {
    "@type": "Organization",
    "name": "Example Company",
    "logo": {
      "@type": "ImageObject",
      "url": "https://example.com/logo.png"
    }
  },
  "description": "A complete guide to implementing schema markup...",
  "mainEntityOfPage": {
    "@type": "WebPage",
    "@id": "https://example.com/schema-guide"
  }
}

Product

Use for: Product pages (e-commerce or SaaS)

Required properties:

name
image
offers (with price and availability)

Recommended properties:

description
sku
brand
aggregateRating
review

{
  "@context": "https://schema.org",
  "@type": "Product",
  "name": "Premium Widget",
  "image": "https://example.com/widget.jpg",
  "description": "Our best-selling widget for professionals",
  "sku": "WIDGET-001",
  "brand": {
    "@type": "Brand",
    "name": "Example Co"
  },
  "offers": {
    "@type": "Offer",
    "url": "https://example.com/products/widget",
    "priceCurrency": "USD",
    "price": "99.99",
    "availability": "https://schema.org/InStock",
    "priceValidUntil": "2024-12-31"
  },
  "aggregateRating": {
    "@type": "AggregateRating",
    "ratingValue": "4.8",
    "reviewCount": "127"
  }
}

SoftwareApplication

Use for: SaaS product pages, app landing pages

Required properties:

name
offers (or free indicator)

Recommended properties:

applicationCategory
operatingSystem
aggregateRating

{
  "@context": "https://schema.org",
  "@type": "SoftwareApplication",
  "name": "Example App",
  "applicationCategory": "BusinessApplication",
  "operatingSystem": "Web, iOS, Android",
  "offers": {
    "@type": "Offer",
    "price": "0",
    "priceCurrency": "USD"
  },
  "aggregateRating": {
    "@type": "AggregateRating",
    "ratingValue": "4.6",
    "ratingCount": "1250"
  }
}

FAQPage

Use for: Pages with frequently asked questions

Required properties:

mainEntity (array of Question/Answer)

{
  "@context": "https://schema.org",
  "@type": "FAQPage",
  "mainEntity": [
    {
      "@type": "Question",
      "name": "What is schema markup?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Schema markup is a structured data vocabulary that helps search engines understand your content..."
      }
    },
    {
      "@type": "Question",
      "name": "How do I implement schema?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "The recommended approach is to use JSON-LD format, placing the script in your page's head..."
      }
    }
  ]
}

HowTo

Use for: Instructional content, tutorials

Required properties:

name
step (array of HowToStep)

Recommended properties:

image
totalTime
estimatedCost
supply/tool

{
  "@context": "https://schema.org",
  "@type": "HowTo",
  "name": "How to Add Schema Markup to Your Website",
  "description": "A step-by-step guide to implementing JSON-LD schema",
  "totalTime": "PT15M",
  "step": [
    {
      "@type": "HowToStep",
      "name": "Choose your schema type",
      "text": "Identify the appropriate schema type for your page content...",
      "url": "https://example.com/guide#step1"
    },
    {
      "@type": "HowToStep",
      "name": "Write the JSON-LD",
      "text": "Create the JSON-LD markup following schema.org specifications...",
      "url": "https://example.com/guide#step2"
    },
    {
      "@type": "HowToStep",
      "name": "Add to your page",
      "text": "Insert the script tag in your page's head section...",
      "url": "https://example.com/guide#step3"
    }
  ]
}

BreadcrumbList

Use for: Any page with breadcrumb navigation

{
  "@context": "https://schema.org",
  "@type": "BreadcrumbList",
  "itemListElement": [
    {
      "@type": "ListItem",
      "position": 1,
      "name": "Home",
      "item": "https://example.com"
    },
    {
      "@type": "ListItem",
      "position": 2,
      "name": "Blog",
      "item": "https://example.com/blog"
    },
    {
      "@type": "ListItem",
      "position": 3,
      "name": "SEO Guide",
      "item": "https://example.com/blog/seo-guide"
    }
  ]
}

LocalBusiness

Use for: Local business location pages

Required properties:

name
address
(Various by business type)

{
  "@context": "https://schema.org",
  "@type": "LocalBusiness",
  "name": "Example Coffee Shop",
  "image": "https://example.com/shop.jpg",
  "address": {
    "@type": "PostalAddress",
    "streetAddress": "123 Main Street",
    "addressLocality": "San Francisco",
    "addressRegion": "CA",
    "postalCode": "94102",
    "addressCountry": "US"
  },
  "geo": {
    "@type": "GeoCoordinates",
    "latitude": "37.7749",
    "longitude": "-122.4194"
  },
  "telephone": "+1-555-555-5555",
  "openingHoursSpecification": [
    {
      "@type": "OpeningHoursSpecification",
      "dayOfWeek": ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday"],
      "opens": "08:00",
      "closes": "18:00"
    }
  ],
  "priceRange": "$$"
}

Review / AggregateRating

Use for: Review pages or products with reviews

Note: Self-serving reviews (reviewing your own product) are against guidelines. Reviews must be from real customers.

{
  "@context": "https://schema.org",
  "@type": "Product",
  "name": "Example Product",
  "aggregateRating": {
    "@type": "AggregateRating",
    "ratingValue": "4.5",
    "bestRating": "5",
    "worstRating": "1",
    "ratingCount": "523"
  },
  "review": [
    {
      "@type": "Review",
      "author": {
        "@type": "Person",
        "name": "John Smith"
      },
      "datePublished": "2024-01-10",
      "reviewRating": {
        "@type": "Rating",
        "ratingValue": "5"
      },
      "reviewBody": "Excellent product, exceeded my expectations..."
    }
  ]
}

Event

Use for: Event pages, webinars, conferences

Required properties:

name
startDate
location (or eventAttendanceMode for online)

{
  "@context": "https://schema.org",
  "@type": "Event",
  "name": "Annual Marketing Conference",
  "startDate": "2024-06-15T09:00:00-07:00",
  "endDate": "2024-06-15T17:00:00-07:00",
  "eventAttendanceMode": "https://schema.org/OnlineEventAttendanceMode",
  "eventStatus": "https://schema.org/EventScheduled",
  "location": {
    "@type": "VirtualLocation",
    "url": "https://example.com/conference"
  },
  "image": "https://example.com/conference.jpg",
  "description": "Join us for our annual marketing conference...",
  "offers": {
    "@type": "Offer",
    "url": "https://example.com/conference/tickets",
    "price": "199",
    "priceCurrency": "USD",
    "availability": "https://schema.org/InStock",
    "validFrom": "2024-01-01"
  },
  "performer": {
    "@type": "Organization",
    "name": "Example Company"
  },
  "organizer": {
    "@type": "Organization",
    "name": "Example Company",
    "url": "https://example.com"
  }
}

Multiple Schema Types on One Page

You can (and often should) have multiple schema types:

{
  "@context": "https://schema.org",
  "@graph": [
    {
      "@type": "Organization",
      "@id": "https://example.com/#organization",
      "name": "Example Company",
      "url": "https://example.com"
    },
    {
      "@type": "WebSite",
      "@id": "https://example.com/#website",
      "url": "https://example.com",
      "name": "Example",
      "publisher": {
        "@id": "https://example.com/#organization"
      }
    },
    {
      "@type": "BreadcrumbList",
      "itemListElement": [...]
    }
  ]
}

Validation and Testing

Tools

Google Rich Results Test: https://search.google.com/test/rich-results
Schema.org Validator: https://validator.schema.org/
Search Console: Enhancements reports

Common Errors

Missing required properties

Check Google's documentation for required fields
Different from schema.org minimum requirements

Invalid values

Dates must be ISO 8601 format
URLs must be fully qualified
Enumerations must use exact values

Mismatch with page content

Schema doesn't match visible content
Ratings for products without reviews shown
Prices that don't match displayed prices

Implementation Patterns

Static Sites

Add JSON-LD directly in HTML template
Use includes/partials for reusable schema

Dynamic Sites (React, Next.js, etc.)

Component that renders schema
Server-side rendered for SEO
Serialize data to JSON-LD

// Next.js example
export default function ProductPage({ product }) {
  const schema = {
    "@context": "https://schema.org",
    "@type": "Product",
    name: product.name,
    // ... other properties
  };

  return (
    <>
      <Head>
        <script
          type="application/ld+json"
          dangerouslySetInnerHTML={{ __html: JSON.stringify(schema) }}
        />
      </Head>
      {/* Page content */}
    </>
  );
}

CMS / WordPress

Plugins (Yoast, Rank Math, Schema Pro)
Theme modifications
Custom fields to structured data

Output Format

Schema Implementation

// Full JSON-LD code block
{
  "@context": "https://schema.org",
  "@type": "...",
  // Complete markup
}

Placement Instructions

Where to add the code and how

Testing Checklist

Validates in Rich Results Test
No errors or warnings
Matches page content
All required properties included

Questions to Ask

If you need more context:

What type of page is this?
What rich results are you hoping to achieve?
What data is available to populate the schema?
Is there existing schema on the page?
What's your tech stack for implementation?

Related Skills

review-seo-audit: For overall SEO including schema review
tool-programmatic-seo: For templated schema at scale
analytics-tracking: For measuring rich result impact

FAQ

What does the tool-schema-markup skill do?

How do I install tool-schema-markup?

Run npx skills add https://github.com/heyvhuang/ship-faster --skill tool-schema-markup in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/tool-schema-markup/ (personal) or .claude/skills/tool-schema-markup/ (project).

Which AI agents can use tool-schema-markup?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is tool-schema-markup safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains tool-schema-markup?

It is published by heyvhuang in heyvhuang/ship-faster. It has 53 recorded installs.

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tool-schema-markup

Install

Install

Describe the task

Review the result

SKILL.md

Schema Markup

Initial Assessment

Core Principles

1. Accuracy First

2. Use JSON-LD

3. Follow Google's Guidelines

4. Validate Everything

Common Schema Types

Organization

WebSite (with SearchAction)

Article / BlogPosting

Product

SoftwareApplication

FAQPage

HowTo

BreadcrumbList

LocalBusiness

Review / AggregateRating

Event

Multiple Schema Types on One Page

Validation and Testing

Tools

Common Errors

Implementation Patterns

Static Sites

Dynamic Sites (React, Next.js, etc.)

CMS / WordPress

Output Format

Schema Implementation

Placement Instructions

Testing Checklist

Questions to Ask

Related Skills

FAQ

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