{
  "$schema": "http://json-schema.org/draft-07/schema#", "type": "object",
  "required": ["basis-artifact-id", "basis-artifact-sha256", "phases", "rollback-plan", "validation-plan", "data-loss-tolerance", "cutover-criteria"],
  "properties": {
    "basis-artifact-id": {"type": "string", "minLength": 1}, "basis-artifact-sha256": {"type": "string", "pattern": "^[0-9a-f]{64}$"},
    "phases": {"type": "array", "minItems": 1}, "rollback-plan": {"type": "object", "minProperties": 1},
    "validation-plan": {"type": "array", "minItems": 1}, "data-loss-tolerance": {"type": "string", "minLength": 1},
    "cutover-criteria": {"type": "array", "minItems": 1}
  }
}