diff --git a/web/static/css/style.css b/web/static/css/style.css
index bdd44f14..8f578954 100644
--- a/web/static/css/style.css
+++ b/web/static/css/style.css
@@ -5375,8 +5375,8 @@ header {
 
 .external-mcp-item-details {
     display: grid;
-    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
-    gap: 16px;
+    grid-template-columns: repeat(auto-fit, minmax(150px, auto));
+    gap: 12px;
     padding-top: 16px;
     border-top: 1px solid var(--border-color);
 }
diff --git a/web/static/i18n/en-US.json b/web/static/i18n/en-US.json
index 6b3cff14..aaa623eb 100644
--- a/web/static/i18n/en-US.json
+++ b/web/static/i18n/en-US.json
@@ -1387,9 +1387,6 @@
     "multiAgentPeLoop": "plan_execute outer loop limit",
     "multiAgentPeLoopPlaceholder": "0 uses Eino default (10)",
     "multiAgentPeLoopHint": "Only for plan_execute; max execute↔replan rounds.",
-    "multiAgentDefaultMode": "Default mode on chat page",
-    "multiAgentModeSingle": "Single-agent (ReAct)",
-    "multiAgentModeMulti": "Multi-agent (Eino)",
     "multiAgentRobotUse": "Use multi-agent for WeCom / DingTalk / Lark bots",
     "multiAgentRobotUseHint": "Requires 'Enable multi-agent' to be checked; usage and cost will be higher.",
     "multiAgentBatchUse": "Use multi-agent for batch task queues",
diff --git a/web/static/i18n/zh-CN.json b/web/static/i18n/zh-CN.json
index 4102481c..a0ed4ba9 100644
--- a/web/static/i18n/zh-CN.json
+++ b/web/static/i18n/zh-CN.json
@@ -1387,9 +1387,6 @@
     "multiAgentPeLoop": "plan_execute 外层循环上限",
     "multiAgentPeLoopPlaceholder": "0 表示 Eino 默认 10",
     "multiAgentPeLoopHint": "仅 plan_execute 有效；execute 与 replan 之间的最大轮次。",
-    "multiAgentDefaultMode": "对话页默认模式",
-    "multiAgentModeSingle": "单代理（ReAct）",
-    "multiAgentModeMulti": "多代理（Eino）",
     "multiAgentRobotUse": "企业微信 / 钉钉 / 飞书机器人也使用多代理",
     "multiAgentRobotUseHint": "需同时勾选「启用多代理」；调用量与成本更高。",
     "multiAgentBatchUse": "批量任务队列也使用多代理",
diff --git a/web/static/js/chat.js b/web/static/js/chat.js
index 567e2b55..000f1eec 100644
--- a/web/static/js/chat.js
+++ b/web/static/js/chat.js
@@ -66,8 +66,7 @@ function chatAgentModeNormalizeStored(stored, cfg) {
     if (chatAgentModeIsEino(s)) {
         return multiOn ? s : CHAT_AGENT_MODE_REACT;
     }
-    const defMulti = pub && pub.default_mode === 'multi';
-    return defMulti && multiOn ? defOrch : CHAT_AGENT_MODE_REACT;
+    return CHAT_AGENT_MODE_REACT;
 }
 
 if (typeof window !== 'undefined') {
diff --git a/web/static/js/settings.js b/web/static/js/settings.js
index cffa8684..4cd43809 100644
--- a/web/static/js/settings.js
+++ b/web/static/js/settings.js
@@ -134,8 +134,6 @@ async function loadConfig(loadTools = true) {
             const v = ma.plan_execute_loop_max_iterations;
             maPeLoop.value = (v !== undefined && v !== null && !Number.isNaN(Number(v))) ? String(Number(v)) : '0';
         }
-        const maMode = document.getElementById('multi-agent-default-mode');
-        if (maMode) maMode.value = (ma.default_mode === 'multi') ? 'multi' : 'single';
         const maRobot = document.getElementById('multi-agent-robot-use');
         if (maRobot) maRobot.checked = ma.robot_use_multi_agent === true;
         
@@ -1012,7 +1010,6 @@ async function applySettings() {
                 const peLoop = Number.isNaN(peParsed) ? 0 : Math.max(0, peParsed);
                 return {
                     enabled: document.getElementById('multi-agent-enabled')?.checked === true,
-                    default_mode: document.getElementById('multi-agent-default-mode')?.value === 'multi' ? 'multi' : 'single',
                     robot_use_multi_agent: document.getElementById('multi-agent-robot-use')?.checked === true,
                     batch_use_multi_agent: false,
                     plan_execute_loop_max_iterations: peLoop
diff --git a/web/templates/index.html b/web/templates/index.html
index 36606126..aae630fc 100644
--- a/web/templates/index.html
+++ b/web/templates/index.html
@@ -1448,13 +1448,6 @@
                                             <input type="number" id="multi-agent-pe-loop" min="0" step="1" value="0" data-i18n="settingsBasic.multiAgentPeLoopPlaceholder" data-i18n-attr="placeholder" placeholder="0 表示 Eino 默认 10" />
                                             <small class="form-hint" data-i18n="settingsBasic.multiAgentPeLoopHint">仅 orchestration=plan_execute 时有效；execute 与 replan 之间的最大轮次。</small>
                                         </div>
-                                        <div class="form-group">
-                                            <label for="multi-agent-default-mode" data-i18n="settingsBasic.multiAgentDefaultMode">对话页默认模式</label>
-                                            <select id="multi-agent-default-mode">
-                                                <option value="single" data-i18n="settingsBasic.multiAgentModeSingle">单代理（ReAct）</option>
-                                                <option value="multi" data-i18n="settingsBasic.multiAgentModeMulti">多代理（Eino）</option>
-                                            </select>
-                                        </div>
                                         <div class="form-group">
                                             <label class="checkbox-label">
                                                 <input type="checkbox" id="multi-agent-robot-use" class="modern-checkbox" />