[schema][algorithm] Separate endpoint definition

beat/core/schema/algorithm/common.json

@@ -5,19 +5,23 @@
 
   "definitions": {
 
+    "endpoint": {
+      "type": "object",
+      "properties": {
+        "type": { "$ref": "../common/1.json#/definitions/reference" },
+        "description": { "type": "string" }
+      },
+      "required": [
+        "type"
+      ],
+      "additionalProperties": false
+    },
+
     "endpoints": {
       "type": "object",
       "patternProperties": {
         "^[a-zA-Z_][a-zA-Z0-9_-]*$": {
-          "type": "object",
-          "properties": {
-            "type": { "$ref": "../common/1.json#/definitions/reference" },
-            "description": { "type": "string" }
-          },
-          "required": [
-            "type"
-          ],
-          "additionalProperties": false
+          "$ref": "#/definitions/endpoint"
         }
       },
       "uniqueItems": true,