diff --git a/docs/schema/SerializedAppLogicAction.schema.json b/docs/schema/SerializedAppLogicAction.schema.json
index bcf390c..98ca180 100644
--- a/docs/schema/SerializedAppLogicAction.schema.json
+++ b/docs/schema/SerializedAppLogicAction.schema.json
@@ -160,16 +160,7 @@
                     }
                   ],
                   "minItems": 2,
-                  "additionalItems": {
-                    "anyOf": [
-                      {
-                        "type": "number"
-                      },
-                      {
-                        "type": "number"
-                      }
-                    ]
-                  }
+                  "maxItems": 2
                 }
               },
               "sdl": {
@@ -191,22 +182,7 @@
                     }
                   ],
                   "minItems": 4,
-                  "additionalItems": {
-                    "anyOf": [
-                      {
-                        "type": "number"
-                      },
-                      {
-                        "type": "number"
-                      },
-                      {
-                        "type": "number"
-                      },
-                      {
-                        "type": "number"
-                      }
-                    ]
-                  }
+                  "maxItems": 4
                 }
               }
             },
@@ -343,16 +319,7 @@
               }
             ],
             "minItems": 2,
-            "additionalItems": {
-              "anyOf": [
-                {
-                  "type": "string"
-                },
-                {
-                  "type": "string"
-                }
-              ]
-            }
+            "maxItems": 2
           }
         },
         "updatedOrAdded": {
diff --git a/docs/schema/serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-as-items.md b/docs/schema/serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-as-items.md
index 257c6b1..15c43f6 100644
--- a/docs/schema/serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-as-items.md
+++ b/docs/schema/serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-as-items.md
@@ -18,8 +18,8 @@ an array where each item follows the corresponding schema in the following list:
 
 2.  [Untitled number in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-as-items-items-1.md "check type definition")
 
-3.  and all following items must follow the schema: [Untitled undefined type in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-as-items-additionalitems.md "check type definition")
-
 ## items Constraints
 
+**maximum number of items**: the maximum number of items for this array is: `2`
+
 **minimum number of items**: the minimum number of items for this array is: `2`
diff --git a/docs/schema/serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-as.md b/docs/schema/serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-as.md
index 69abffa..c1a23f6 100644
--- a/docs/schema/serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-as.md
+++ b/docs/schema/serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-as.md
@@ -17,5 +17,3 @@ an array where each item follows the corresponding schema in the following list:
 1.  [Untitled number in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-as-items-items-0.md "check type definition")
 
 2.  [Untitled number in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-as-items-items-1.md "check type definition")
-
-3.  and all following items must follow the schema: [Untitled undefined type in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-as-items-additionalitems.md "check type definition")
diff --git a/docs/schema/serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-sdl-items.md b/docs/schema/serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-sdl-items.md
index 53ab9db..49a0049 100644
--- a/docs/schema/serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-sdl-items.md
+++ b/docs/schema/serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-sdl-items.md
@@ -22,8 +22,8 @@ an array where each item follows the corresponding schema in the following list:
 
 4.  [Untitled number in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-sdl-items-items-3.md "check type definition")
 
-5.  and all following items must follow the schema: [Untitled undefined type in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-sdl-items-additionalitems.md "check type definition")
-
 ## items Constraints
 
+**maximum number of items**: the maximum number of items for this array is: `4`
+
 **minimum number of items**: the minimum number of items for this array is: `4`
diff --git a/docs/schema/serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-sdl.md b/docs/schema/serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-sdl.md
index 710b008..128da47 100644
--- a/docs/schema/serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-sdl.md
+++ b/docs/schema/serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-sdl.md
@@ -21,5 +21,3 @@ an array where each item follows the corresponding schema in the following list:
 3.  [Untitled number in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-sdl-items-items-2.md "check type definition")
 
 4.  [Untitled number in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-sdl-items-items-3.md "check type definition")
-
-5.  and all following items must follow the schema: [Untitled undefined type in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-sdl-items-additionalitems.md "check type definition")
diff --git a/docs/schema/serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items.md b/docs/schema/serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items.md
index 1b73e9b..b99ccb3 100644
--- a/docs/schema/serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items.md
+++ b/docs/schema/serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items.md
@@ -92,8 +92,6 @@ https://timelimit.io/SerializedAppLogicAction#/definitions/SerializedAddUsedTime
 
     2.  [Untitled number in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-as-items-items-1.md "check type definition")
 
-    3.  and all following items must follow the schema: [Untitled undefined type in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-as-items-additionalitems.md "check type definition")
-
 *   cannot be null
 
 *   defined in: [SerializedAppLogicAction](serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-as.md "https://timelimit.io/SerializedAppLogicAction#/definitions/SerializedAddUsedTimeActionVersion2/properties/i/items/properties/as")
@@ -106,8 +104,6 @@ an array where each item follows the corresponding schema in the following list:
 
 2.  [Untitled number in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-as-items-items-1.md "check type definition")
 
-3.  and all following items must follow the schema: [Untitled undefined type in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-as-items-additionalitems.md "check type definition")
-
 ## sdl
 
 
@@ -126,8 +122,6 @@ an array where each item follows the corresponding schema in the following list:
 
     4.  [Untitled number in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-sdl-items-items-3.md "check type definition")
 
-    5.  and all following items must follow the schema: [Untitled undefined type in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-sdl-items-additionalitems.md "check type definition")
-
 *   cannot be null
 
 *   defined in: [SerializedAppLogicAction](serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-sdl.md "https://timelimit.io/SerializedAppLogicAction#/definitions/SerializedAddUsedTimeActionVersion2/properties/i/items/properties/sdl")
@@ -143,5 +137,3 @@ an array where each item follows the corresponding schema in the following list:
 3.  [Untitled number in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-sdl-items-items-2.md "check type definition")
 
 4.  [Untitled number in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-sdl-items-items-3.md "check type definition")
-
-5.  and all following items must follow the schema: [Untitled undefined type in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedaddusedtimeactionversion2-properties-i-items-properties-sdl-items-additionalitems.md "check type definition")
diff --git a/docs/schema/serializedapplogicaction-definitions-serializedupdateappactivitiesaction-properties-removed-items.md b/docs/schema/serializedapplogicaction-definitions-serializedupdateappactivitiesaction-properties-removed-items.md
index 10d31ee..6d267b3 100644
--- a/docs/schema/serializedapplogicaction-definitions-serializedupdateappactivitiesaction-properties-removed-items.md
+++ b/docs/schema/serializedapplogicaction-definitions-serializedupdateappactivitiesaction-properties-removed-items.md
@@ -18,8 +18,8 @@ an array where each item follows the corresponding schema in the following list:
 
 2.  [Untitled string in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedupdateappactivitiesaction-properties-removed-items-items-1.md "check type definition")
 
-3.  and all following items must follow the schema: [Untitled undefined type in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedupdateappactivitiesaction-properties-removed-items-additionalitems.md "check type definition")
-
 ## items Constraints
 
+**maximum number of items**: the maximum number of items for this array is: `2`
+
 **minimum number of items**: the minimum number of items for this array is: `2`
diff --git a/docs/schema/serializedapplogicaction-definitions-serializedupdateappactivitiesaction-properties-removed.md b/docs/schema/serializedapplogicaction-definitions-serializedupdateappactivitiesaction-properties-removed.md
index 043d55a..413a9d1 100644
--- a/docs/schema/serializedapplogicaction-definitions-serializedupdateappactivitiesaction-properties-removed.md
+++ b/docs/schema/serializedapplogicaction-definitions-serializedupdateappactivitiesaction-properties-removed.md
@@ -17,5 +17,3 @@ an array where each item follows the corresponding schema in the following list:
 1.  [Untitled string in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedupdateappactivitiesaction-properties-removed-items-items-0.md "check type definition")
 
 2.  [Untitled string in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedupdateappactivitiesaction-properties-removed-items-items-1.md "check type definition")
-
-3.  and all following items must follow the schema: [Untitled undefined type in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedupdateappactivitiesaction-properties-removed-items-additionalitems.md "check type definition")
diff --git a/docs/schema/serializedapplogicaction-definitions-serializedupdateappactivitiesaction.md b/docs/schema/serializedapplogicaction-definitions-serializedupdateappactivitiesaction.md
index 776bb26..ab5e215 100644
--- a/docs/schema/serializedapplogicaction-definitions-serializedupdateappactivitiesaction.md
+++ b/docs/schema/serializedapplogicaction-definitions-serializedupdateappactivitiesaction.md
@@ -62,8 +62,6 @@ https://timelimit.io/SerializedAppLogicAction#/definitions/SerializedUpdateAppAc
 
     2.  [Untitled string in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedupdateappactivitiesaction-properties-removed-items-items-1.md "check type definition")
 
-    3.  and all following items must follow the schema: [Untitled undefined type in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedupdateappactivitiesaction-properties-removed-items-additionalitems.md "check type definition")
-
 *   cannot be null
 
 *   defined in: [SerializedAppLogicAction](serializedapplogicaction-definitions-serializedupdateappactivitiesaction-properties-removed.md "https://timelimit.io/SerializedAppLogicAction#/definitions/SerializedUpdateAppActivitiesAction/properties/removed")
@@ -76,8 +74,6 @@ an array where each item follows the corresponding schema in the following list:
 
 2.  [Untitled string in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedupdateappactivitiesaction-properties-removed-items-items-1.md "check type definition")
 
-3.  and all following items must follow the schema: [Untitled undefined type in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedupdateappactivitiesaction-properties-removed-items-additionalitems.md "check type definition")
-
 ## updatedOrAdded
 
 
diff --git a/docs/schema/serializedapplogicaction.md b/docs/schema/serializedapplogicaction.md
index c24da15..91ee690 100644
--- a/docs/schema/serializedapplogicaction.md
+++ b/docs/schema/serializedapplogicaction.md
@@ -694,8 +694,6 @@ Reference this group by using
 
     2.  [Untitled string in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedupdateappactivitiesaction-properties-removed-items-items-1.md "check type definition")
 
-    3.  and all following items must follow the schema: [Untitled undefined type in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedupdateappactivitiesaction-properties-removed-items-additionalitems.md "check type definition")
-
 *   cannot be null
 
 *   defined in: [SerializedAppLogicAction](serializedapplogicaction-definitions-serializedupdateappactivitiesaction-properties-removed.md "https://timelimit.io/SerializedAppLogicAction#/definitions/SerializedUpdateAppActivitiesAction/properties/removed")
@@ -708,8 +706,6 @@ an array where each item follows the corresponding schema in the following list:
 
 2.  [Untitled string in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedupdateappactivitiesaction-properties-removed-items-items-1.md "check type definition")
 
-3.  and all following items must follow the schema: [Untitled undefined type in SerializedAppLogicAction](serializedapplogicaction-definitions-serializedupdateappactivitiesaction-properties-removed-items-additionalitems.md "check type definition")
-
 ### updatedOrAdded
 
 
diff --git a/src/api/validator.ts b/src/api/validator.ts
index 3bc8b06..73ed5a2 100644
--- a/src/api/validator.ts
+++ b/src/api/validator.ts
@@ -1504,16 +1504,7 @@ const definitions = {
                   }
                 ],
                 "minItems": 2,
-                "additionalItems": {
-                  "anyOf": [
-                    {
-                      "type": "number"
-                    },
-                    {
-                      "type": "number"
-                    }
-                  ]
-                }
+                "maxItems": 2
               }
             },
             "sdl": {
@@ -1535,22 +1526,7 @@ const definitions = {
                   }
                 ],
                 "minItems": 4,
-                "additionalItems": {
-                  "anyOf": [
-                    {
-                      "type": "number"
-                    },
-                    {
-                      "type": "number"
-                    },
-                    {
-                      "type": "number"
-                    },
-                    {
-                      "type": "number"
-                    }
-                  ]
-                }
+                "maxItems": 4
               }
             }
           },
@@ -1681,16 +1657,7 @@ const definitions = {
             }
           ],
           "minItems": 2,
-          "additionalItems": {
-            "anyOf": [
-              {
-                "type": "string"
-              },
-              {
-                "type": "string"
-              }
-            ]
-          }
+          "maxItems": 2
         }
       },
       "updatedOrAdded": {