diff --git a/app/admin/controller/system/TimerConfig.php b/app/admin/controller/system/TimerConfig.php
index b38859b..b2de17a 100644
--- a/app/admin/controller/system/TimerConfig.php
+++ b/app/admin/controller/system/TimerConfig.php
@@ -6,6 +6,7 @@ use app\common\controller\AdminController;
 use app\admin\service\annotation\ControllerAnnotation;
 use app\admin\service\annotation\NodeAnotation;
 use think\App;
+use think\facade\Cache;
 
 /**
  * @ControllerAnnotation(title="定时任务协调配置表")
@@ -29,6 +30,7 @@ class TimerConfig extends AdminController
         $this->allowModifyFields = [
             'status',
             'run_type',
+            'concurrency',
         ];
     }
 
@@ -57,14 +59,23 @@ class TimerConfig extends AdminController
         empty($row) && $this->error('数据不存在');
         if ($this->request->isPost()) {
             $post = $this->request->post();
-            // 只允许修改 run_type 和 status
-            $post = array_intersect_key($post, array_flip(['run_type', 'status']));
+            // 只允许修改 run_type、status、concurrency
+            $post = array_intersect_key($post, array_flip(['run_type', 'status', 'concurrency']));
+            if (array_key_exists('concurrency', $post)) {
+                // 空/null=继承代码默认写 NULL；正整数=覆盖；0或负数=拒绝（M5 防静默吞任务）
+                $post['concurrency'] = $this->normalizeConcurrency($post['concurrency']);
+            }
             try {
                 $save = $row->save($post);
             } catch (\Exception $e) {
                 $this->error('保存失败:' . $e->getMessage());
             }
-            $save ? $this->success('保存成功') : $this->error('保存失败');
+            if ($save) {
+                // D18：DB commit 后递增脏标记，触发 timer reload（edit 改 concurrency/run_type/status，与 trigger 一致）
+                Cache::inc('timer_config_version');
+                $this->success('保存成功');
+            }
+            $this->error('保存失败');
         }
         $this->assign('row', $row);
 
@@ -81,17 +92,88 @@ class TimerConfig extends AdminController
         if (!$row) {
             $this->error('数据不存在');
         }
-        if ($row->getAttr('run_type') !== 'manual') {
-            $this->error('只有manual类型的任务支持手动触发');
-        }
-        if ($row->getAttr('status') != 1) {
-            $this->error('任务已停用，请先启用');
+        $trigger_node_id = $this->request->post('trigger_node_id');
+        if (empty($trigger_node_id)) {
+            $this->error('请选择节点');
         }
         try {
-            $row->save(['manual_trigger' => 1]);
+            // 手动触发跨 run_type、穿透 status（D19：调试工作流，关闭+手动触发+打开）
+            $row->save([
+                'manual_trigger'   => 1,
+                'trigger_node_id'  => $trigger_node_id,
+                'last_trigger_time' => time(),
+            ]);
+            // D18：DB commit 成功后才递增 version，防脏读（commit 前递增→节点 reload 读旧值→永不 reload）
+            Cache::inc('timer_config_version');
         } catch (\Exception $e) {
             $this->error('触发失败:' . $e->getMessage());
         }
         $this->success('触发成功，等待定时器执行');
     }
+
+    /**
+     * @NodeAnotation(title="节点列表")
+     */
+    public function hostList()
+    {
+        $list = \app\admin\model\SystemHost::where('status', 1)
+            ->field('node_id,is_master,ip_address,last_heartbeat_at')
+            ->order('is_master desc, node_id asc')
+            ->select();
+        $this->success('', $list);
+    }
+
+    /**
+     * @NodeAnotation(title="属性修改")
+     */
+    public function modify()
+    {
+        $this->checkPostRequest();
+        $post = $this->request->post();
+        $rule = [
+            'id|ID'    => 'require',
+            'field|字段' => 'require',
+            'value|值'  => 'require',
+        ];
+        $this->validate($post, $rule);
+        if (!in_array($post['field'], $this->allowModifyFields)) {
+            $this->error('该字段不允许修改：' . $post['field']);
+        }
+        // concurrency 行内修改必须为正整数（M5 防静默吞任务；继承默认请走 edit 表单传空值）
+        if ($post['field'] === 'concurrency' && (!is_numeric($post['value']) || (int) $post['value'] < 1)) {
+            $this->error('concurrency 必须是正整数');
+        }
+        $row = $this->model->find($post['id']);
+        empty($row) && $this->error('数据不存在');
+        $value = $post['field'] === 'concurrency' ? (int) $post['value'] : $post['value'];
+        try {
+            $save = $row->save([$post['field'] => $value]);
+        } catch (\Exception $e) {
+            $this->error($e->getMessage());
+        }
+        if ($save) {
+            // D18：DB commit 后递增脏标记，触发 timer reload（行内改 concurrency/status/run_type，同 edit）
+            Cache::inc('timer_config_version');
+        }
+        $this->success('保存成功');
+    }
+
+    /**
+     * 归一化 concurrency 入库值.
+     * 空字符串/null → null（继承代码默认）；正整数 → int；0或负数/非数字 → 拒绝.
+     *
+     * @param mixed $value 提交值
+     * @return int|null
+     */
+    private function normalizeConcurrency($value)
+    {
+        if ($value === '' || $value === null) {
+            return null;
+        }
+        if (!is_numeric($value) || (int) $value < 1) {
+            $this->error('concurrency 必须是正整数或空(继承默认)');
+        }
+
+        return (int) $value;
+    }
 }