Ajustes conforme relatorio de testes 2026-08-27

config/tool_policies.yaml

@@ -6,11 +6,18 @@ tool_policies:
   cancelar_vas_avulso:
     operation_type: transactional
     require_confirmation: true
-    requires: [subject]
+    requires:
+    - subject
+    pre_validation:
+      enabled: true
+      tool: validar_vas_subject
+      fail_open: false
   contestar_cobranca:
     operation_type: transactional
     require_confirmation: true
-    requires: [subject, valor]
+    requires:
+    - subject
+    - valor
     pre_validation:
       enabled: true
       tool: validar_contestacao
@@ -18,7 +25,12 @@ tool_policies:
   tratar_vas_estrategico:
     operation_type: conversational
     require_confirmation: false
-    requires: [subject]
+    requires:
+    - subject
+    pre_validation:
+      enabled: true
+      tool: validar_vas_subject
+      fail_open: false
   pro_rata:
     operation_type: conversational
     require_confirmation: false