identity:
  version: "2"
  required:
    - session_key
  keys:
    customer_key:
      description: Cliente/assinante canônico. Para telecom, normalmente msisdn.
      sources:
        - business_context.customer_key
        - customer_key
        - msisdn
        - ani
        - from
        - user_id
    contract_key:
      description: Fatura, contrato ou asset principal.
      sources:
        - business_context.contract_key
        - contract_key
        - invoice_id
        - current_invoice_number
        - past_invoice_number
        - asset_id
    interaction_key:
      description: Chave externa da interação/call/chat.
      sources:
        - business_context.interaction_key
        - interaction_key
        - ura_call_id
        - call_id
        - message_id
    account_key:
      description: Conta de cobrança/conta comercial.
      sources:
        - business_context.account_key
        - account_key
        - account_id
        - billing_account_id
    resource_key:
      description: Linha/produto/asset específico.
      sources:
        - business_context.resource_key
        - resource_key
        - asset_id
        - product_id
    session_key:
      description: Sessão técnica estável escopada por tenant e agente.
      sources:
        - business_context.session_key
        - session_key
        - conversation_key
        - session_id