SchemaWright

Schema markup generator and validator skill for Claude, for JSON-LD

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Install SchemaWright

Inside Claude Code2 commands, in order

>/plugin marketplace add https://vayleer.com/plugins/marketplace.json>/plugin install schemawright@vayleer

Run both commands inside Claude Code. The first adds the Vayleer marketplace once; after that every plugin here installs with one command.

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About SchemaWright

SchemaWright is a schema markup generator and validator for Claude. It reads the page first to collect only facts it really shows, writes JSON-LD for 25 schema.org types, and validates the result the way Google's Rich Results Test does, reporting each rich result as eligible, eligible with warnings or not eligible, and why.

It also catches what that test misses: values not visible on the page, template placeholders, typos in types and property names, expired offers and jobs, and features Google has retired. A site check validates many pages at once and makes sure the entities they share, such as the Organization, agree everywhere.

Facts from the pagePrices, ratings, breadcrumbs and dates read before anything is written.
Rich result verdictsEligible or not, for 22 Google features.
Visible values onlyMarkup that the page does not show is flagged.
Site-wide checkOne Organization and one WebSite across every page.
Merchant listingsShipping, returns and product variants.
Typos and placeholdersWrong case, misspelt properties, template leftovers.
Retired featuresHow-to, FAQ limits and features phased out in 2025.
Framework placementNext.js, Nuxt, Astro, SvelteKit, WordPress and Shopify.

Works with

ClaudeClaude Code

Integrations

Claude CodeClaude apps

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Questions

Can it add star ratings to my pages?

Only from ratings that are real and shown on the page. It never invents ratings, review counts or prices.

Which page types does it cover?

Organization, WebSite, BreadcrumbList, Article, Product with Offer and AggregateRating, SoftwareApplication, LocalBusiness, FAQPage, Event, JobPosting, VideoObject, Recipe, Course and Person.

Does it replace Google's Rich Results Test?

No. Use it while you build and in CI, and the Rich Results Test once a page is live.

Is SchemaWright free?

Yes. SchemaWright is free and MIT licensed.

How do I install SchemaWright?

In Claude Code run /plugin marketplace add https://plugins.dudelemon.cloud/marketplace.json, then /plugin install schemawright@dudelemon. For the Claude apps, upload https://plugins.dudelemon.cloud/skills/schemawright.zip under Customize, Skills.

What’s new

2.1.0
9 Nov 2026
- Site-wide structured data check.
2.0.0
9 Nov 2026
- Rich result verdicts, visibility checks, page fact extraction and 25 types.
1.0.0
8 Nov 2026
- SchemaWright is available as a free Claude skill.

Install SchemaWright

About SchemaWright

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What’s new

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