Your shared-catalogue profile does not match the standard

It concerns UCP, the shared catalogue standard. The Universal Commerce Protocol. A shared format Google and Shopify use so an agent can read your catalogue and build a basket without scraping your pages.

Most agents fail at this point. The few that find a way round it spend more time and model calls doing so, and may give up before checkout.

Serve a JSON object at /.well-known/ucp carrying a version and a non-empty capabilities list. An agent reads the manifest before anything else, so a manifest it cannot parse means it never gets as far as your catalogue.

Run the check that reported UCP_MANIFEST_SCHEMA_INVALID again after the change. The scan needs no account; an issue found during an AI shopping test needs that test run again.

$ npx @tragent/cli scan https://your-store.com

• A shared-catalogue address you named does not answer
• The shared-catalogue test suite found a failure