kind: substrate-reef
reef_id: reef-example
repo: reef-example
ownership_repo: railiance-infra
substrate_kind: server-group
lifecycle_state: active
criticality: high
primary_rail: rail-kubernetes
hosted_rails:
  - rail-kubernetes
current_members:
  - Example01
exposure:
  posture: public
  grants:
    - hostname: example.coulomb.social
      port: 443
      reason: fixture public DNS surface
      approved_on: "2026-08-15"
      residual_risk_owner: railiance-infra