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seo-schema

Detect, validate, and generate Schema.org JSON-LD structured data for web pages.

6|Updated Apr 3, 2026
Search Tags:#validation#schema#seo#structured-data#markup#json-ld#web-pages
One-click install
npx skills add https://github.com/BestLemoon/codex-seo --skill seo-schema-bestlemoon
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: seo-schema
Source: https://github.com/BestLemoon/codex-seo/tree/main/skills/seo-schema
Command: npx skills add https://github.com/BestLemoon/codex-seo --skill seo-schema-bestlemoon

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Schema markup and validation for web pages to improve search visibility and eligibility for rich results by automating detection and generation of JSON-LD and other markup formats.

Core Features & Use Cases

  • Detects existing JSON-LD, Microdata, and RDFa markup on pages to assess coverage.
  • Validates required properties across schema types and compatibility with Google's rich results.
  • Generates ready-to-deploy JSON-LD templates and detailed validation reports for quick deployment.

Quick Start

Provide a target URL and run the skill to generate validated JSON-LD schema for that page.

Frequently Asked Questions about seo-schema

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I generate and validate JSON-LD schema markup for a web page?▼

Schema markup validation checks existing structured data on web pages against required properties for rich results, flagging deprecated types and compatibility issues to improve search visibility and ensure correct implementation.

Can I validate existing Microdata and RDFa markup on my web pages?▼

Yes, the tool detects existing JSON-LD, Microdata, and RDFa markup on your pages, validates required properties across schema types, and generates ready-to-deploy JSON-LD templates to replace or supplement older formats.

What is the best way to check if my structured data qualifies for Google rich results?▼

The best way is to validate your schema markup against Google's rich results compatibility. This tool checks required properties across schema types, flags deprecated types, and produces a detailed SCHEMA-REPORT.md for quick assessment.

How do I convert Microdata or RDFa to JSON-LD structured data?▼

To convert Microdata or RDFa to JSON-LD, provide your URL to detect existing markup formats, then use the generated JSON-LD templates as replacements. The tool outputs a generated-schema.json file with ready-to-deploy structured data.

Why does my schema markup show deprecated types in validation reports?▼

Deprecated schema types appear in validation reports when your structured data uses outdated Schema.org vocabulary. The tool detects these types, flags them in the SCHEMA-REPORT.md, and guides you toward selecting current, compatible schema types.

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