diff --git a/api-reference/on-call.openapi.en.json b/api-reference/on-call.openapi.en.json
index dd3bf4a8..800e61e7 100644
--- a/api-reference/on-call.openapi.en.json
+++ b/api-reference/on-call.openapi.en.json
@@ -7763,7 +7763,7 @@
           "On-call/Alerts"
         ],
         "x-mint": {
-          "content": "## Restrictions\n\n| Aspect | Value |\n| ------ | ----- |\n| Rate limits | **1,000 requests/minute**; **50 requests/second** per account |\n| Permissions | **Channels Read** (`on-call`) |\n\n## Usage\n\n- Results are filtered by the caller's channel data-access permissions.\n- `severities` is a comma-separated string, e.g. `\"Critical,Warning\"`.",
+          "content": "## Restrictions\n\n| Aspect | Value |\n| ------ | ----- |\n| Rate limits | **1,000 requests/minute**; **50 requests/second** per account |\n| Permissions | **Channels Read** (`on-call`) |\n\n## Usage\n\n- Both `start_time` and `end_time` are required Unix epoch seconds. `start_time` must be less than `end_time`; the span must not exceed 31 days.\n- Results are filtered by the caller's channel data-access permissions.\n- `severities` is a comma-separated string, e.g. `\"Critical,Warning\"`.",
           "href": "/en/api-reference/on-call/alerts/alert-event-read-list",
           "metadata": {
             "sidebarTitle": "List raw alert events"
@@ -18521,24 +18521,22 @@
       },
       "AlertEventGlobalListRequest": {
         "type": "object",
-        "description": "Filter and pagination criteria for the global raw event list.",
+        "description": "Filter and pagination criteria for the global raw event list. Time range is required.",
+        "required": [
+          "start_time",
+          "end_time"
+        ],
         "properties": {
           "start_time": {
-            "type": [
-              "integer",
-              "null"
-            ],
+            "type": "integer",
             "format": "int64",
-            "description": "Start of the search window, Unix epoch seconds. Must be greater than 0 when provided.",
+            "description": "Start of the search window, Unix epoch seconds. Must be greater than 0.",
             "exclusiveMinimum": 0
           },
           "end_time": {
-            "type": [
-              "integer",
-              "null"
-            ],
+            "type": "integer",
             "format": "int64",
-            "description": "End of the search window, Unix epoch seconds. Must be greater than `start_time` when provided."
+            "description": "End of the search window, Unix epoch seconds. Must be greater than `start_time`; the span must not exceed 31 days."
           },
           "p": {
             "type": [
diff --git a/api-reference/on-call.openapi.zh.json b/api-reference/on-call.openapi.zh.json
index e74ded2d..88840313 100644
--- a/api-reference/on-call.openapi.zh.json
+++ b/api-reference/on-call.openapi.zh.json
@@ -7763,7 +7763,7 @@
           "On-call/告警管理"
         ],
         "x-mint": {
-          "content": "## 限制说明\n\n| 项目 | 说明 |\n| ---- | ---- |\n| 速率限制 | 每个账户 **1,000 次/分钟**；**50 次/秒** |\n| 权限要求 | **协作空间查看**（`on-call`） |\n\n## 使用说明\n\n- 结果会根据调用方的协作空间数据访问权限进行过滤。\n- `severities` 为逗号分隔的字符串，如 `\"Critical,Warning\"`。",
+          "content": "## 限制说明\n\n| 项目 | 说明 |\n| ---- | ---- |\n| 速率限制 | 每个账户 **1,000 次/分钟**；**50 次/秒** |\n| 权限要求 | **协作空间查看**（`on-call`） |\n\n## 使用说明\n\n- `start_time` 和 `end_time` 均为必填的 Unix 时间戳（秒）。`start_time` 必须小于 `end_time`，跨度不超过 31 天。\n- 结果会根据调用方的协作空间数据访问权限进行过滤。\n- `severities` 为逗号分隔的字符串，如 `\"Critical,Warning\"`。",
           "href": "/zh/api-reference/on-call/alerts/alert-event-read-list",
           "metadata": {
             "sidebarTitle": "查询原始告警事件列表"
@@ -18521,24 +18521,22 @@
       },
       "AlertEventGlobalListRequest": {
         "type": "object",
-        "description": "全局原始事件列表的过滤和分页条件。",
+        "description": "全局原始事件列表的过滤和分页条件，时间范围必填。",
+        "required": [
+          "start_time",
+          "end_time"
+        ],
         "properties": {
           "start_time": {
-            "type": [
-              "integer",
-              "null"
-            ],
+            "type": "integer",
             "format": "int64",
-            "description": "查询窗口起点，Unix 时间戳（秒）。提供时必须大于 0。",
+            "description": "查询窗口起点，Unix 时间戳（秒）。必须大于 0。",
             "exclusiveMinimum": 0
           },
           "end_time": {
-            "type": [
-              "integer",
-              "null"
-            ],
+            "type": "integer",
             "format": "int64",
-            "description": "查询窗口终点，Unix 时间戳（秒）。提供时必须大于 `start_time`。"
+            "description": "查询窗口终点，Unix 时间戳（秒）。必须大于 `start_time`；跨度不超过 31 天。"
           },
           "p": {
             "type": [
diff --git a/api-reference/openapi.en.json b/api-reference/openapi.en.json
index 896d8973..8ceb9dfd 100644
--- a/api-reference/openapi.en.json
+++ b/api-reference/openapi.en.json
@@ -850,7 +850,7 @@
         "type": "object"
       },
       "AlertEventGlobalListRequest": {
-        "description": "Filter and pagination criteria for the global raw event list.",
+        "description": "Filter and pagination criteria for the global raw event list. Time range is required.",
         "properties": {
           "asc": {
             "description": "Sort ascending when `true`.",
@@ -866,12 +866,9 @@
             "type": "array"
           },
           "end_time": {
-            "description": "End of the search window, Unix epoch seconds. Must be greater than `start_time` when provided.",
+            "description": "End of the search window, Unix epoch seconds. Must be greater than `start_time`; the span must not exceed 31 days.",
             "format": "int64",
-            "type": [
-              "integer",
-              "null"
-            ]
+            "type": "integer"
           },
           "integration_ids": {
             "description": "Filter by integration IDs.",
@@ -926,15 +923,16 @@
             "type": "string"
           },
           "start_time": {
-            "description": "Start of the search window, Unix epoch seconds. Must be greater than 0 when provided.",
+            "description": "Start of the search window, Unix epoch seconds. Must be greater than 0.",
             "exclusiveMinimum": 0,
             "format": "int64",
-            "type": [
-              "integer",
-              "null"
-            ]
+            "type": "integer"
           }
         },
+        "required": [
+          "start_time",
+          "end_time"
+        ],
         "type": "object"
       },
       "AlertEventGlobalListResponse": {
@@ -33429,7 +33427,7 @@
           "On-call/Alerts"
         ],
         "x-mint": {
-          "content": "## Restrictions\n\n| Aspect | Value |\n| ------ | ----- |\n| Rate limits | **1,000 requests/minute**; **50 requests/second** per account |\n| Permissions | **Channels Read** (`on-call`) |\n\n## Usage\n\n- Results are filtered by the caller's channel data-access permissions.\n- `severities` is a comma-separated string, e.g. `\"Critical,Warning\"`.",
+          "content": "## Restrictions\n\n| Aspect | Value |\n| ------ | ----- |\n| Rate limits | **1,000 requests/minute**; **50 requests/second** per account |\n| Permissions | **Channels Read** (`on-call`) |\n\n## Usage\n\n- Both `start_time` and `end_time` are required Unix epoch seconds. `start_time` must be less than `end_time`; the span must not exceed 31 days.\n- Results are filtered by the caller's channel data-access permissions.\n- `severities` is a comma-separated string, e.g. `\"Critical,Warning\"`.",
           "href": "/en/api-reference/on-call/alerts/alert-event-read-list",
           "metadata": {
             "sidebarTitle": "List raw alert events"
diff --git a/api-reference/openapi.zh.json b/api-reference/openapi.zh.json
index afc168ac..96254546 100644
--- a/api-reference/openapi.zh.json
+++ b/api-reference/openapi.zh.json
@@ -850,7 +850,7 @@
         "type": "object"
       },
       "AlertEventGlobalListRequest": {
-        "description": "全局原始事件列表的过滤和分页条件。",
+        "description": "全局原始事件列表的过滤和分页条件，时间范围必填。",
         "properties": {
           "asc": {
             "description": "为 true 时升序排序。",
@@ -866,12 +866,9 @@
             "type": "array"
           },
           "end_time": {
-            "description": "查询窗口终点，Unix 时间戳（秒）。提供时必须大于 `start_time`。",
+            "description": "查询窗口终点，Unix 时间戳（秒）。必须大于 `start_time`；跨度不超过 31 天。",
             "format": "int64",
-            "type": [
-              "integer",
-              "null"
-            ]
+            "type": "integer"
           },
           "integration_ids": {
             "description": "按集成 ID 过滤。",
@@ -926,15 +923,16 @@
             "type": "string"
           },
           "start_time": {
-            "description": "查询窗口起点，Unix 时间戳（秒）。提供时必须大于 0。",
+            "description": "查询窗口起点，Unix 时间戳（秒）。必须大于 0。",
             "exclusiveMinimum": 0,
             "format": "int64",
-            "type": [
-              "integer",
-              "null"
-            ]
+            "type": "integer"
           }
         },
+        "required": [
+          "start_time",
+          "end_time"
+        ],
         "type": "object"
       },
       "AlertEventGlobalListResponse": {
@@ -33429,7 +33427,7 @@
           "On-call/告警管理"
         ],
         "x-mint": {
-          "content": "## 限制说明\n\n| 项目 | 说明 |\n| ---- | ---- |\n| 速率限制 | 每个账户 **1,000 次/分钟**；**50 次/秒** |\n| 权限要求 | **协作空间查看**（`on-call`） |\n\n## 使用说明\n\n- 结果会根据调用方的协作空间数据访问权限进行过滤。\n- `severities` 为逗号分隔的字符串，如 `\"Critical,Warning\"`。",
+          "content": "## 限制说明\n\n| 项目 | 说明 |\n| ---- | ---- |\n| 速率限制 | 每个账户 **1,000 次/分钟**；**50 次/秒** |\n| 权限要求 | **协作空间查看**（`on-call`） |\n\n## 使用说明\n\n- `start_time` 和 `end_time` 均为必填的 Unix 时间戳（秒）。`start_time` 必须小于 `end_time`，跨度不超过 31 天。\n- 结果会根据调用方的协作空间数据访问权限进行过滤。\n- `severities` 为逗号分隔的字符串，如 `\"Critical,Warning\"`。",
           "href": "/zh/api-reference/on-call/alerts/alert-event-read-list",
           "metadata": {
             "sidebarTitle": "查询原始告警事件列表"