generated: '2026-08-04'
method: searched
source: https://account.hubblecontacts.com/.well-known/ucp
notes: >-
  Hubble Contacts publishes no versioning policy, deprecation policy, SLA or status
  page of its own. The only versioning signal on its public surface is the dated UCP
  protocol version pinning in the store's own /.well-known/ucp document, which names
  the current stable version and one prior version it still supports. Recorded as
  observed; no StatusPage or Deprecation pointer is emitted because neither exists.
versioning:
  scheme: date-versioned protocol negotiation
  current: '2026-04-08'
  supported:
  - version: '2026-04-08'
    label: latest stable
    profile: https://hubble-prod.myshopify.com/.well-known/ucp/2026-04-08
  - version: '2026-01-23'
    profile: https://hubble-prod.myshopify.com/.well-known/ucp/2026-01-23
  docs: https://account.hubblecontacts.com/agents.md
  note: >-
    Version negotiation is a property of the UCP/Shopify platform, not a Hubble-authored
    policy. Capability entries under dev.ucp.shopping.fulfillment and
    dev.ucp.shopping.discount declare requires.protocol.min = 2026-04-08.
graphql_versioning:
  surface: https://account.hubblecontacts.com/api/{version}/graphql.json
  scheme: quarterly date versions in the request path
  observed_via: 'anonymous query { publicApiVersions { handle displayName supported } }'
  supported: ['2025-10', '2026-01', '2026-04', '2026-07']
  latest: '2026-07'
  release_candidate: '2026-10'
  unsupported: ['2026-10', 'unstable']
  response_header: 'x-shopify-api-version: 2026-01'
  note: >-
    Found in round 2. This is the only machine-readable version-support window on the
    property: the endpoint itself will tell an unauthenticated caller which versions
    are still supported. It is a Shopify platform property surfaced on Hubble's host,
    not a Hubble-authored policy, which is why no Deprecation pointer is emitted in
    apis.yml.
deprecation:
  policy_url: null
  sunset_header: false
  evidence: >-
    No deprecation or sunset policy is published on any Hubble host; no Deprecation or
    Sunset headers were observed on the storefront or MCP responses.
  field_level_signalling:
    surface: Storefront GraphQL
    mechanism: '@deprecated(reason: "...") directives in the SDL'
    count: 55
    examples:
    - 'Use `cost` instead.'
    - 'Use `sourceDiscountApplication` instead.'
    - 'Use `authorV2` instead.'
    note: >-
      The live schema deprecates 55 fields with machine-readable reason strings, so an
      agent CAN detect deprecation on this surface even though no policy page exists.
      Recorded as observed; still not a published provider policy.
sla:
  url: null
  uptime_target: null
status_page: null
status_page_evidence: >-
  status.hubblecontacts.com does not resolve (NXDOMAIN); no status or uptime page is
  linked from the marketing site, the storefront, /llms.txt or /agents.md.
changelog: null
changelog_evidence: No dated API or agent-surface changelog is published.
deprecated_operations: []
x-evidence:
  fetched: '2026-08-04'
  probes:
  - {url: 'https://account.hubblecontacts.com/.well-known/ucp', http_status: 200}
  - {host: status.hubblecontacts.com, dns: NXDOMAIN}
  - {url: 'https://account.hubblecontacts.com/api/2026-01/graphql.json', method: POST, query: publicApiVersions, http_status: 200}
  - {host: developer.hubblecontacts.com, dns: NXDOMAIN}