generated: '2026-08-11'
method: probed
source: https://davidprotein.com/agents.md
note: >-
  David publishes no versioning policy, no deprecation policy, no SLA and no status page
  of its own. What versioning exists is carried in response headers and in the UCP
  discovery document, and it is inconsistent between the two MCP endpoints.
versioning:
  scheme: date-versioned protocol, signalled in a response header
  current: '2026-04-08'
  supported:
  - version: '2026-04-08'
    label: latest stable
    profile: https://1f74d5-3d.myshopify.com/.well-known/ucp/2026-04-08
  - version: '2026-01-23'
    profile: https://1f74d5-3d.myshopify.com/.well-known/ucp/2026-01-23
  headers:
  - {endpoint: https://davidprotein.com/api/ucp/mcp, header: x-shopify-ucp-mcp-api-version, value: '2026-04-08'}
  - {endpoint: https://davidprotein.com/api/mcp, header: x-shopify-mcp-api-version, value: unstable}
  mcp_protocol_version: '2024-11-05'
  note: >-
    The storefront MCP server self-reports api-version "unstable" while the UCP commerce
    server pins 2026-04-08. An agent integrating against /api/mcp is building on a surface
    the store itself labels unstable, and nothing on David's site says so.
deprecation:
  policy_url: null
  sunset_header: false
  note: >-
    No deprecation policy is published, and the older UCP version 2026-01-23 is listed as
    supported with no stated end date. No Sunset or Deprecation header was observed.
sla:
  url: null
  uptime_target: null
status_page: null
status_page_note: >-
  No status.davidprotein.com and no status page linked from the store. Availability of the
  agent endpoints is unobservable to an integrator.
changelog: null
changelog_note: >-
  No dated changelog for the agent surface. The blog at /blogs/the-column is nutrition
  editorial, not release notes.
deprecated_operations: []
x-evidence:
  fetched: '2026-08-11'
  urls:
  - {url: https://davidprotein.com/.well-known/ucp, status: 200}
  - {url: https://davidprotein.com/api/ucp/mcp, status: 200}
  - {url: https://davidprotein.com/api/mcp, status: 200}