generated: '2026-07-18'
method: searched
source: live probe of https://backbone.com/.well-known/*
host: https://backbone.com
notes: backbone.com is a Shopify-hosted storefront. The discovery documents below are served on Backbone's
  own domain but provided by the Shopify commerce platform (Customer Account OIDC + Universal Commerce
  Protocol). No RFC 9116 security.txt or RFC 8615 api-catalog is published.
hosts:
- host: https://backbone.com
  documents:
  - path: /.well-known/openid-configuration
    status: 200
    file: backbone-openid-configuration.json
    note: Shopify Customer Account OIDC discovery (issuer shopify.com/authentication/36563550340)
  - path: /.well-known/oauth-authorization-server
    status: 200
    file: backbone-oauth-authorization-server.json
    note: RFC 8414 authorization-server metadata (mirrors the OIDC discovery)
  - path: /.well-known/ucp
    status: 200
    file: backbone-ucp.json
    note: Universal Commerce Protocol (ucp.dev) merchant profile — MCP + embedded shopping services
  - path: /.well-known/security.txt
    status: 404
  - path: /.well-known/api-catalog
    status: 404
  - path: /.well-known/ai-plugin.json
    status: 404
x-shape-fix:
  converted: '2026-08-20'
  from: documents
  note: Rewritten into hosts[] -> documents[], the only shape well_known_docs() in score.rb reads. A served
    .well-known surface recorded in any other shape scores as absent.