diff --git a/.apigentools-info b/.apigentools-info
index a4a173218..296ce6ac0 100644
--- a/.apigentools-info
+++ b/.apigentools-info
@@ -4,13 +4,13 @@
     "spec_versions": {
         "v1": {
             "apigentools_version": "1.6.6",
-            "regenerated": "2025-06-23 20:34:45.000901",
-            "spec_repo_commit": "837c2656"
+            "regenerated": "2025-06-24 14:37:26.731055",
+            "spec_repo_commit": "d7a08ce8"
         },
         "v2": {
             "apigentools_version": "1.6.6",
-            "regenerated": "2025-06-23 20:34:45.017074",
-            "spec_repo_commit": "837c2656"
+            "regenerated": "2025-06-24 14:37:26.749122",
+            "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 6fbfc5594..7e68052eb 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/datadogV1/api/api_metrics.rs b/src/datadogV1/api/api_metrics.rs
index cb5886694..0cac49d1e 100644
--- a/src/datadogV1/api/api_metrics.rs
+++ b/src/datadogV1/api/api_metrics.rs
@@ -316,6 +316,9 @@ impl MetricsAPI {
     }
 
     /// 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.
     pub async fn list_active_metrics(
         &self,
         from: i64,
@@ -337,6 +340,9 @@ impl MetricsAPI {
     }
 
     /// 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.
     pub async fn list_active_metrics_with_http_info(
         &self,
         from: i64,