AI Product Schema for WooCommerce - Product JSON-LD & llms.txt

AI shopping agents (ChatGPT, Gemini, Perplexity, Claude and others) increasingly research and recommend products for shoppers. To be considered, a store's products need machine-readable, structured, complete data. WooCommerce does not provide this out of the box. AI Product Schema makes your WooCommerce catalog first-class for AI shopping agents:

• Complete Product JSON-LD on every product page (schema.org Product with offers, availability, ratings, brand and images), built from your live WooCommerce data.
• No duplicate schema. AI Product Schema detects Yoast SEO and Rank Math and merges its data into their existing Product node instead of printing a second one. With no SEO plugin, it prints a standalone node.
• AI product attributes you can fill in the classic product editor: a Q&A list, compatible accessories, and substitute products. These map to verified schema.org properties (subjectOf/FAQ, isRelatedTo, isSimilarTo).
• /llms.txt — a Markdown index of your published products following the llms.txt convention, so agents can find your catalog quickly.
• AI-crawler robots.txt directives that welcome known shopping/agent crawlers (GPTBot, Google-Extended, ClaudeBot, PerplexityBot and more) and point them at your /llms.txt.
• Feature toggles under WooCommerce → Settings → AI Product Schema.

llms.txt built for a catalog, not for a blog Most llms.txt plugins index pages: your posts, your about page, your contact form. That is the right shape for a content site and the wrong shape for a store. AI Product Schema generates a product index. It lists your published WooCommerce products, and it is backed by complete Product JSON-LD on every product page, so an agent that follows your /llms.txt finds real structured product data when it arrives: price, availability, ratings, brand, images, and your AI attributes. That pairing is the point. An llms.txt with nothing structured behind it tells an agent where to look but not what it is looking at. Structured data with no index makes the agent find your products on its own. This plugin does both, for WooCommerce specifically. AI Product Schema reads product data exclusively through the WooCommerce CRUD API and declares High-Performance Order Storage (HPOS) compatibility.

0.1.3

• Documentation only: clearer plugin name, and the description now explains the /llms.txt product index and how it differs from general-purpose llms.txt plugins. Added a link to the public source repository. No functional changes.

0.1.2

• New: the plugin now speaks Spanish (es_ES) and Brazilian Portuguese (pt_BR). The settings screen, the AI Attributes tab in the product editor, and all notices are translated.
• Fixed the description of the "Schema mode" setting, which showed an internal PHP namespace instead of the plugin name.

0.1.1

• Banner updated to the current plugin name and missing directory assets added. Donate link added. No functional changes.

0.1.0

• Initial release: Product JSON-LD with Yoast/Rank Math coexistence, AI product attributes (Q&A, accessories, substitutes), /llms.txt, AI-crawler robots.txt directives, and a settings tab.