better way to express the response code requirement

Author: karenetheridge

schemas/v3.1/schema.json

@@ -799,7 +799,18 @@
           "$ref": "#/$defs/response-or-reference"
         }
       },
-      "minProperties": 1,
+      "if": {
+        "required": [
+          "default"
+        ]
+      },
+      "then": {
+        "$comment": "The Responses Object MUST contain at least one response code",
+        "minProperties": 2
+      },
+      "else": {
+        "minProperties": 1
+      },
       "$ref": "#/$defs/specification-extensions",
       "unevaluatedProperties": false
     },

schemas/v3.1/schema.yaml

@@ -544,7 +544,14 @@ $defs:
     patternProperties:
       '^[1-5](?:[0-9]{2}|XX)$':
         $ref: '#/$defs/response-or-reference'
-    minProperties: 1
+    if:
+      required:
+      - default
+    then:
+      $comment: The Responses Object MUST contain at least one response code
+      minProperties: 2
+    else:
+      minProperties: 1
     $ref: '#/$defs/specification-extensions'
     unevaluatedProperties: false