AI-Aware Schema: Structured Data for AI Citations
Learn which JSON-LD fields specifically help AI engines like ChatGPT, Claude and Perplexity cite your content accurately, and how to add the entity references that prevent hallucination.
What you will learn in this guide
- Why AI engines need different schema signals than Google
- The role of @id and entity disambiguation
- Person schema for authors with knowsAbout signals
- How to wire dateModified to real edit timestamps
- Why sameAs links matter more for AI than for SEO
1 Why AI needs schema differently
Google can extract meaning from messy HTML when it has to. AI engines benefit much more from clean structured data because they need to reason about entities, dates, and authority — not just match keywords.
2 Entity @id references
Every entity in your schema (Person, Organization, Product) should have a unique @id URL. This is how AI engines link the same entity across pages.
When this same Jane is referenced from multiple articles, use the @id as a reference: "author": {"@id": "https://yoursite.com/team/jane-smith#person"}. The full Person object goes once on the author page; references go everywhere else.
3 Critical AI-aware fields
| Field | Why AI cares |
|---|---|
| author (Person object, not string) | Disambiguates which expert wrote the content |
| datePublished + dateModified | AI weights recent content higher; stale timestamps hurt citations |
| knowsAbout (on Person) | Tells AI which topics this author is authoritative on |
| sameAs (on Person/Organization) | LinkedIn, Twitter, Wikipedia links establish identity across web |
| mainEntity / mainEntityOfPage | Tells AI what this page is primarily about |
| inLanguage | Avoids cross-language citation confusion |
4 How to audit your AI schema
- 1Run the AI Schema AuditOpen schema-tools.html#ai-schema. The tool scores each page on AI-aware fields, not just Google rich-result requirements.
- 2Find hallucination risksThe tool flags ambiguous entity references: string-only authors, missing Person @id, stale dateModified. Each is a potential AI citation error.
- 3Fix authors firstMost sites lose AI visibility because authors are strings. Convert top 10 authors to full Person objects with @id, knowsAbout, sameAs links to LinkedIn and other authoritative profiles.
- 4Wire real datesdateModified should be the actual last meaningful edit, not the deploy date. Most CMSs have a "last revised" field — use it as the source.