add changelog

Signed-off-by: Chenyang Ji <cyji@amazon.com>

CHANGELOG.md

@@ -103,6 +103,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - Added ability to pass `InlineScript` as a simple string ([#605](https://github.com/opensearch-project/opensearch-api-specification/pull/605))
 - Added `config_id` and `config_id_list` to `/_plugins/_notifications/configs` query parameters ([#594](https://github.com/opensearch-project/opensearch-api-specification/pull/594))
 - Added a release workflow triggered on a tag ([#635](https://github.com/opensearch-project/opensearch-api-specification/pull/635))
+- Added API spec for query insights plugin ([#625](https://github.com/opensearch-project/opensearch-api-specification/pull/625))
 
 ### Changed
 

spec/namespaces/insights.yaml

@@ -6,24 +6,28 @@ info:
 paths:
   /_insights/top_queries:
     get:
-      operationId: insights.getTopQueries
-      x-operation-group: insights
+      operationId: insights.top_queries.0
+      x-operation-group: insights.top_queries
       description: Retrieves the top queries based on the given metric type (latency, CPU, or memory).
       parameters:
-        - $ref: '#/components/parameters/type'
+        - $ref: '#/components/parameters/insights.top_queries::type'
       responses:
         '200':
-          content:
-            application/json:
-              schema:
-                $ref: '../schemas/query_insights._common.yaml#/components/schemas/TopQueriesResponse'
+          $ref: '#/components/responses/insight.top_queries@200'
+
 components:
   parameters:
-    type:
+    insights.top_queries::type:
       name: type
       in: query
       required: true
       description: Get top n queries by a specific metric.
       schema:
         type: string
         enum: [cpu, latency, memory]
+  responses:
+    insight.top_queries@200:
+      content:
+        application/json:
+          schema:
+            $ref: '../schemas/insights._common.yaml#/components/schemas/TopQueriesResponse'