diff --git a/.apigentools-info b/.apigentools-info
index 6917c16da83..2e2812e8a83 100644
--- a/.apigentools-info
+++ b/.apigentools-info
@@ -4,13 +4,13 @@
     "spec_versions": {
         "v1": {
             "apigentools_version": "1.6.6",
-            "regenerated": "2025-06-23 20:34:48.753397",
-            "spec_repo_commit": "837c2656"
+            "regenerated": "2025-06-24 14:37:24.241356",
+            "spec_repo_commit": "d7a08ce8"
         },
         "v2": {
             "apigentools_version": "1.6.6",
-            "regenerated": "2025-06-23 20:34:48.769158",
-            "spec_repo_commit": "837c2656"
+            "regenerated": "2025-06-24 14:37:24.261750",
+            "spec_repo_commit": "d7a08ce8"
         }
     }
 }
\ No newline at end of file
diff --git a/.generator/schemas/v1/openapi.yaml b/.generator/schemas/v1/openapi.yaml
index 6fbfc55943c..7e68052eb2c 100644
--- a/.generator/schemas/v1/openapi.yaml
+++ b/.generator/schemas/v1/openapi.yaml
@@ -29301,8 +29301,14 @@ paths:
         - logs_write_pipelines
   /api/v1/metrics:
     get:
-      description: Get the list of actively reporting metrics from a given time until
+      description: 'Get the list of actively reporting metrics from a given time until
         now.
+
+        The tag service resets daily at midnight UTC. This endpoint returns only
+
+        metrics that have reported since the last reset, even if the `from`
+
+        parameter specifies an earlier time.'
       operationId: ListActiveMetrics
       parameters:
       - description: Seconds since the Unix epoch.
diff --git a/src/main/java/com/datadog/api/client/v1/api/MetricsApi.java b/src/main/java/com/datadog/api/client/v1/api/MetricsApi.java
index b655ca5092f..3abf21ab760 100644
--- a/src/main/java/com/datadog/api/client/v1/api/MetricsApi.java
+++ b/src/main/java/com/datadog/api/client/v1/api/MetricsApi.java
@@ -282,7 +282,9 @@ public CompletableFuture<MetricsListResponse> listActiveMetricsAsync(
   }
 
   /**
-   * Get the list of actively reporting metrics from a given time until now.
+   * Get the list of actively reporting metrics from a given time until now. The tag service resets
+   * daily at midnight UTC. This endpoint returns only metrics that have reported since the last
+   * reset, even if the <code>from</code> parameter specifies an earlier time.
    *
    * @param from Seconds since the Unix epoch. (required)
    * @param parameters Optional parameters for the request.