{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "ourdigital-estimate-engine scope input",
  "description": "Generic estimate request. Consuming skills map their context into this.",
  "type": "object",
  "required": ["service"],
  "properties": {
    "service": {"type": "string", "description": "catalog entry name, e.g. seo | education | digital_ads"},
    "method": {"type": "string", "enum": ["effort", "coaching", "procurement"], "description": "optional; defaults to the catalog entry's method"},
    "prospect": {
      "type": "object",
      "properties": {
        "name": {"type": "string"}, "domain": {"type": "string"},
        "audit_date": {"type": "string"}, "account_code": {"type": "string"}
      }
    },
    "seq": {"type": "integer", "default": 1},

    "tier": {"type": "string", "description": "effort: smb|basic|treatment|auto (default auto)"},
    "billing_rate": {"type": ["number", "null"], "description": "effort: override billing rate"},
    "signals": {
      "type": "object",
      "description": "effort auto-tiering inputs",
      "properties": {
        "properties_total": {"type": "integer"},
        "subbrands_total": {"type": "integer"},
        "vertical": {"type": "string"},
        "severity": {"type": "array", "items": {"type": "string"}}
      }
    },

    "course": {"type": "string", "description": "coaching: named course in catalog (else use lessons)"},
    "lessons": {
      "type": "array",
      "description": "coaching: explicit lesson plan",
      "items": {
        "type": "object",
        "required": ["type", "hours"],
        "properties": {
          "subject": {"type": "string"}, "title": {"type": "string"},
          "type": {"type": "string", "enum": ["화상", "대면", "실습", "워크숍", "트리트먼트"]},
          "hours": {"type": "number"}
        }
      }
    },
    "students": {"type": "integer", "default": 1},
    "pricing_mode": {"type": "string", "enum": ["base", "matrix"]},
    "apply_student_discount": {"type": "boolean"},

    "items": {
      "type": "array",
      "description": "procurement: non-labor line items",
      "items": {
        "type": "object",
        "required": ["label", "unit_cost"],
        "properties": {
          "label": {"type": "string"}, "unit_cost": {"type": "number"},
          "qty": {"type": "number", "default": 1}, "currency": {"type": "string"}
        }
      }
    }
  }
}