diff --git a/codex-rs/app-server-protocol/schema/json/ServerNotification.json b/codex-rs/app-server-protocol/schema/json/ServerNotification.json
index e1a7cd3f3d..b31f274908 100644
--- a/codex-rs/app-server-protocol/schema/json/ServerNotification.json
+++ b/codex-rs/app-server-protocol/schema/json/ServerNotification.json
@@ -3367,6 +3367,19 @@
     },
     "TurnCompletedNotification": {
       "properties": {
+        "completedAt": {
+          "description": "Unix timestamp (in seconds) when the turn completed.",
+          "format": "int64",
+          "type": "integer"
+        },
+        "durationMs": {
+          "description": "Duration between turn start and completion in milliseconds, if known.",
+          "format": "int64",
+          "type": [
+            "integer",
+            "null"
+          ]
+        },
         "threadId": {
           "type": "string"
         },
@@ -3375,6 +3388,7 @@
         }
       },
       "required": [
+        "completedAt",
         "threadId",
         "turn"
       ],
@@ -3481,6 +3495,11 @@
     },
     "TurnStartedNotification": {
       "properties": {
+        "createdAt": {
+          "description": "Unix timestamp (in seconds) when the turn started.",
+          "format": "int64",
+          "type": "integer"
+        },
         "threadId": {
           "type": "string"
         },
@@ -3489,6 +3508,7 @@
         }
       },
       "required": [
+        "createdAt",
         "threadId",
         "turn"
       ],
diff --git a/codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.schemas.json b/codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.schemas.json
index 084da013e4..d6f616ad83 100644
--- a/codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.schemas.json
+++ b/codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.schemas.json
@@ -14174,6 +14174,19 @@
       "TurnCompletedNotification": {
         "$schema": "http://json-schema.org/draft-07/schema#",
         "properties": {
+          "completedAt": {
+            "description": "Unix timestamp (in seconds) when the turn completed.",
+            "format": "int64",
+            "type": "integer"
+          },
+          "durationMs": {
+            "description": "Duration between turn start and completion in milliseconds, if known.",
+            "format": "int64",
+            "type": [
+              "integer",
+              "null"
+            ]
+          },
           "threadId": {
             "type": "string"
           },
@@ -14182,6 +14195,7 @@
           }
         },
         "required": [
+          "completedAt",
           "threadId",
           "turn"
         ],
@@ -14450,6 +14464,11 @@
       "TurnStartedNotification": {
         "$schema": "http://json-schema.org/draft-07/schema#",
         "properties": {
+          "createdAt": {
+            "description": "Unix timestamp (in seconds) when the turn started.",
+            "format": "int64",
+            "type": "integer"
+          },
           "threadId": {
             "type": "string"
           },
@@ -14458,6 +14477,7 @@
           }
         },
         "required": [
+          "createdAt",
           "threadId",
           "turn"
         ],
diff --git a/codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.v2.schemas.json b/codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.v2.schemas.json
index 59dab32b19..5c681fa9b8 100644
--- a/codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.v2.schemas.json
+++ b/codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.v2.schemas.json
@@ -12020,6 +12020,19 @@
     "TurnCompletedNotification": {
       "$schema": "http://json-schema.org/draft-07/schema#",
       "properties": {
+        "completedAt": {
+          "description": "Unix timestamp (in seconds) when the turn completed.",
+          "format": "int64",
+          "type": "integer"
+        },
+        "durationMs": {
+          "description": "Duration between turn start and completion in milliseconds, if known.",
+          "format": "int64",
+          "type": [
+            "integer",
+            "null"
+          ]
+        },
         "threadId": {
           "type": "string"
         },
@@ -12028,6 +12041,7 @@
         }
       },
       "required": [
+        "completedAt",
         "threadId",
         "turn"
       ],
@@ -12296,6 +12310,11 @@
     "TurnStartedNotification": {
       "$schema": "http://json-schema.org/draft-07/schema#",
       "properties": {
+        "createdAt": {
+          "description": "Unix timestamp (in seconds) when the turn started.",
+          "format": "int64",
+          "type": "integer"
+        },
         "threadId": {
           "type": "string"
         },
@@ -12304,6 +12323,7 @@
         }
       },
       "required": [
+        "createdAt",
         "threadId",
         "turn"
       ],
diff --git a/codex-rs/app-server-protocol/schema/json/v2/TurnCompletedNotification.json b/codex-rs/app-server-protocol/schema/json/v2/TurnCompletedNotification.json
index 770cc920cf..3780541077 100644
--- a/codex-rs/app-server-protocol/schema/json/v2/TurnCompletedNotification.json
+++ b/codex-rs/app-server-protocol/schema/json/v2/TurnCompletedNotification.json
@@ -1559,6 +1559,19 @@
     }
   },
   "properties": {
+    "completedAt": {
+      "description": "Unix timestamp (in seconds) when the turn completed.",
+      "format": "int64",
+      "type": "integer"
+    },
+    "durationMs": {
+      "description": "Duration between turn start and completion in milliseconds, if known.",
+      "format": "int64",
+      "type": [
+        "integer",
+        "null"
+      ]
+    },
     "threadId": {
       "type": "string"
     },
@@ -1567,6 +1580,7 @@
     }
   },
   "required": [
+    "completedAt",
     "threadId",
     "turn"
   ],
diff --git a/codex-rs/app-server-protocol/schema/json/v2/TurnStartedNotification.json b/codex-rs/app-server-protocol/schema/json/v2/TurnStartedNotification.json
index 761ddc9a62..94af685a0b 100644
--- a/codex-rs/app-server-protocol/schema/json/v2/TurnStartedNotification.json
+++ b/codex-rs/app-server-protocol/schema/json/v2/TurnStartedNotification.json
@@ -1559,6 +1559,11 @@
     }
   },
   "properties": {
+    "createdAt": {
+      "description": "Unix timestamp (in seconds) when the turn started.",
+      "format": "int64",
+      "type": "integer"
+    },
     "threadId": {
       "type": "string"
     },
@@ -1567,6 +1572,7 @@
     }
   },
   "required": [
+    "createdAt",
     "threadId",
     "turn"
   ],
diff --git a/codex-rs/app-server-protocol/schema/typescript/v2/TurnCompletedNotification.ts b/codex-rs/app-server-protocol/schema/typescript/v2/TurnCompletedNotification.ts
index e1b151bfa7..fbe9e11b5a 100644
--- a/codex-rs/app-server-protocol/schema/typescript/v2/TurnCompletedNotification.ts
+++ b/codex-rs/app-server-protocol/schema/typescript/v2/TurnCompletedNotification.ts
@@ -3,4 +3,12 @@
 // This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
 import type { Turn } from "./Turn";
 
-export type TurnCompletedNotification = { threadId: string, turn: Turn, };
+export type TurnCompletedNotification = { threadId: string, turn: Turn, 
+/**
+ * Unix timestamp (in seconds) when the turn completed.
+ */
+completedAt: number, 
+/**
+ * Duration between turn start and completion in milliseconds, if known.
+ */
+durationMs: number | null, };
diff --git a/codex-rs/app-server-protocol/schema/typescript/v2/TurnStartedNotification.ts b/codex-rs/app-server-protocol/schema/typescript/v2/TurnStartedNotification.ts
index 34f71b2465..8c31149506 100644
--- a/codex-rs/app-server-protocol/schema/typescript/v2/TurnStartedNotification.ts
+++ b/codex-rs/app-server-protocol/schema/typescript/v2/TurnStartedNotification.ts
@@ -3,4 +3,8 @@
 // This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
 import type { Turn } from "./Turn";
 
-export type TurnStartedNotification = { threadId: string, turn: Turn, };
+export type TurnStartedNotification = { threadId: string, turn: Turn, 
+/**
+ * Unix timestamp (in seconds) when the turn started.
+ */
+createdAt: number, };