generated: '2026-08-17'
method: probed
source: observed response headers on https://lesechappees.arlettie.com/api/mcp
note: >-
  Arlettie publishes no versioning policy, no deprecation policy page, no SLA and no status page. What
  it does have — and this is a genuinely strong signal, observed live rather than claimed — is RFC 8594
  Sunset/Deprecation header signalling on a deprecated endpoint, with a machine-readable pointer to the
  successor. That comes from the Shopify platform, and it is served from Arlettie's host.

versioning:
  scheme: dated
  surfaces:
  - surface: ucp-mcp
    negotiation: discovery document
    current: '2026-04-08'
    supported: ['2026-04-08', '2026-01-23']
    discovery: https://lesechappees.arlettie.com/.well-known/ucp
  - surface: storefront-graphql
    negotiation: uri-path
    form: /api/{version}/graphql.json
    verified_live: ['2025-01', '2026-01', '2026-04', unstable]
  - surface: storefront-mcp
    negotiation: header
    header: x-shopify-mcp-api-version
    observed: unstable
  policy_url: null
  policy_note: no first-party versioning policy is published on any arlettie.com host

deprecation:
  policy_url: null
  sunset_header: true
  deprecation_header: true
  successor_link_relation: true
  observed:
  - endpoint: https://lesechappees.arlettie.com/api/mcp
    status: deprecated
    headers:
      deprecation: '@1782259200'
      sunset: Mon, 31 Aug 2026 00:00:00 GMT
      link: <https://shopify.dev/docs/agents>; rel="successor-version"
    deprecation_date: '2026-06-20'
    sunset_date: '2026-08-31'
    successor: https://lesechappees.arlettie.com/api/ucp/mcp
    note: >-
      The Deprecation header value @1782259200 is a unix timestamp — 2026-06-20T00:00:00Z. The endpoint
      still answers tools/list with 200 and 5 tools, but sunsets in 14 days from the date of this probe.
      Any agent bound to /api/mcp on this store will break on 2026-08-31 and must move to /api/ucp/mcp.
  standard: 'RFC 8594'

deprecated_operations:
- surface: https://lesechappees.arlettie.com/api/mcp
  tools: [search_catalog, get_product_details, get_cart, update_cart, search_shop_policies_and_faqs]
  sunset: '2026-08-31'

sla:
  url: null
  uptime_target: null
  note: no SLA is published; this is a consumer storefront, not a contracted API product

status_page: null
status_page_note: >-
  Probed https://status.arlettie.com/ — DNS does not resolve. No status page is linked from
  www.arlettie.com or from the storefront. No StatusPage pointer is emitted.

changelog: null
changelog_note: >-
  Arlettie publishes no API changelog. The dated version ladders above are the only change signal, and
  they are platform-published (ucp.dev / shopify.dev), not Arlettie-published, so no ChangeLog pointer
  is emitted.

certificate_expiry:
- host: www.arlettie.com
  expires: '2026-10-03'
- host: lesechappees.arlettie.com
  expires: '2026-11-07'

x-evidence:
  fetched: '2026-08-17'
  probes:
  - url: https://lesechappees.arlettie.com/api/mcp
    method: 'POST tools/list'
    http_status: 200
    headers_observed: [deprecation, sunset, link]
  - url: https://lesechappees.arlettie.com/api/ucp/mcp
    method: 'POST tools/list'
    http_status: 200
    headers_observed: []
  - url: https://status.arlettie.com/
    http_status: 0
    note: DNS resolution failure