diff --git a/enterprise/app/services/captain/lifecycle/context_builder.rb b/enterprise/app/services/captain/lifecycle/context_builder.rb
new file mode 100644
index 000000000..f78d9f95b
--- /dev/null
+++ b/enterprise/app/services/captain/lifecycle/context_builder.rb
@@ -0,0 +1,63 @@
+# frozen_string_literal: true
+
+class Captain::Lifecycle::ContextBuilder
+  def self.build(reservation)
+    new(reservation).build
+  end
+
+  def initialize(reservation)
+    @reservation = reservation
+    @contact = reservation.contact
+    @unit = reservation.unit
+  end
+
+  def build
+    {
+      'customer' => customer_context,
+      'reservation' => reservation_context,
+      'hotel' => hotel_context
+    }
+  end
+
+  private
+
+  def customer_context
+    name = @contact&.name.to_s
+    {
+      'name' => name,
+      'first_name' => name.split.first.to_s,
+      'phone' => @contact&.phone_number.to_s,
+      'cpf' => @contact&.custom_attributes.to_h['cpf'].to_s
+    }
+  end
+
+  def reservation_context
+    {
+      'suite' => @reservation.suite_identifier.to_s,
+      'unit_name' => @unit&.name.to_s,
+      'check_in_at' => format_datetime(@reservation.check_in_at),
+      'check_out_at' => format_datetime(@reservation.check_out_at),
+      'amount' => format_money(@reservation.total_amount),
+      'permanencia' => @reservation.metadata.to_h['permanencia'].to_s
+    }
+  end
+
+  def hotel_context
+    (@unit&.concierge_variables || {}).stringify_keys
+  end
+
+  def format_datetime(value)
+    return '' unless value
+
+    value.in_time_zone('America/Sao_Paulo').strftime('%d/%m/%Y %H:%M')
+  end
+
+  def format_money(value)
+    ActiveSupport::NumberHelper.number_to_currency(
+      value.to_f,
+      unit: 'R$ ',
+      separator: ',',
+      delimiter: '.'
+    )
+  end
+end
diff --git a/spec/enterprise/services/captain/lifecycle/context_builder_spec.rb b/spec/enterprise/services/captain/lifecycle/context_builder_spec.rb
new file mode 100644
index 000000000..6584e6247
--- /dev/null
+++ b/spec/enterprise/services/captain/lifecycle/context_builder_spec.rb
@@ -0,0 +1,69 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe Captain::Lifecycle::ContextBuilder do
+  let(:account) { create(:account) }
+  let(:brand) { create(:captain_brand, account: account) }
+  let(:unit) do
+    Captain::Unit.create!(
+      account: account,
+      brand: brand,
+      name: 'Águas Lindas',
+      concierge_config: {
+        'persona_name' => 'Sofia',
+        'variables' => { 'wifi_password' => 'hotel1001', 'menu_link' => 'https://menu.x' }
+      }
+    )
+  end
+  let(:contact) { create(:contact, account: account, name: 'João Silva', phone_number: '+5561999999999') }
+  let(:reservation) do
+    create(:captain_reservation,
+           account: account,
+           unit: unit,
+           contact: contact,
+           suite_identifier: 'Alexa',
+           total_amount: 160.0,
+           check_in_at: Time.zone.parse('2026-04-20 22:00:00'),
+           check_out_at: Time.zone.parse('2026-04-21 12:00:00'),
+           metadata: { 'permanencia' => 'Pernoite' })
+  end
+
+  describe '.build' do
+    subject(:ctx) { described_class.build(reservation) }
+
+    it 'includes customer.name and first_name' do
+      expect(ctx['customer']['name']).to eq('João Silva')
+      expect(ctx['customer']['first_name']).to eq('João')
+    end
+
+    it 'includes customer.phone' do
+      expect(ctx['customer']['phone']).to eq('+5561999999999')
+    end
+
+    it 'includes reservation.suite' do
+      expect(ctx['reservation']['suite']).to eq('Alexa')
+    end
+
+    it 'includes reservation.unit_name' do
+      expect(ctx['reservation']['unit_name']).to eq('Águas Lindas')
+    end
+
+    it 'formats reservation.amount as BRL' do
+      expect(ctx['reservation']['amount']).to include('R$')
+      expect(ctx['reservation']['amount']).to include('160')
+    end
+
+    it 'includes reservation.permanencia' do
+      expect(ctx['reservation']['permanencia']).to eq('Pernoite')
+    end
+
+    it 'includes hotel.wifi_password from unit variables' do
+      expect(ctx['hotel']['wifi_password']).to eq('hotel1001')
+    end
+
+    it 'includes hotel.menu_link from unit variables' do
+      expect(ctx['hotel']['menu_link']).to eq('https://menu.x')
+    end
+  end
+end