Merge "Details about metrics origins into schema."
diff --git a/test/memoryadvice/memoryadvice_common/src/main/resources/schemas/metricsSpecs.schema.json b/test/memoryadvice/memoryadvice_common/src/main/resources/schemas/metricsSpecs.schema.json
index aa8a9ee..1292d82 100644
--- a/test/memoryadvice/memoryadvice_common/src/main/resources/schemas/metricsSpecs.schema.json
+++ b/test/memoryadvice/memoryadvice_common/src/main/resources/schemas/metricsSpecs.schema.json
@@ -9,22 +9,52 @@
       "$ref": "metricsSpecGroup.schema.json"
     },
     "debug": {
-      "$ref": "metricsSpecGroup.schema.json"
+      "description": "Metrics obtained from android.os.debug.",
+      "allOf": [
+        {
+          "$ref": "metricsSpecGroup.schema.json"
+        }
+      ]
     },
     "meminfo": {
-      "$ref": "metricsSpecGroup.schema.json"
+      "description": "Metrics obtained from `/proc/meminfo`.",
+      "allOf": [
+        {
+          "$ref": "metricsSpecGroup.schema.json"
+        }
+      ]
     },
     "MemoryInfo": {
-      "$ref": "metricsSpecGroup.schema.json"
+      "description": "Metrics obtained from `android.app.ActivityManager.MemoryInfo`.",
+      "allOf": [
+        {
+          "$ref": "metricsSpecGroup.schema.json"
+        }
+      ]
     },
     "proc": {
-      "$ref": "metricsSpecGroup.schema.json"
+      "description": "Metrics obtained from `proc` folder",
+      "allOf": [
+        {
+          "$ref": "metricsSpecGroup.schema.json"
+        }
+      ]
     },
     "status": {
-      "$ref": "metricsSpecGroup.schema.json"
+      "description": "Metrics obtained from `/proc/(pid)/status`.",
+      "allOf": [
+        {
+          "$ref": "metricsSpecGroup.schema.json"
+        }
+      ]
     },
     "summary": {
-      "$ref": "metricsSpecGroup.schema.json"
+      "description": "From `android.os.Debug.MemoryInfo[]`.",
+      "allOf": [
+        {
+          "$ref": "metricsSpecGroup.schema.json"
+        }
+      ]
     },
     "canaryProcessTester": {
       "$ref": "canaryProcessTesterSpec.schema.json"