diff --git a/src/frontend/src/App.tsx b/src/frontend/src/App.tsx
index c860483..d13bc0e 100644
--- a/src/frontend/src/App.tsx
+++ b/src/frontend/src/App.tsx
@@ -17,6 +17,7 @@ import CourtCeremony from './components/CourtCeremony';
 import CourtDiscussion from './components/CourtDiscussion';
 import UsagePanel from './components/UsagePanel';
 import SettingsPanel from './components/SettingsPanel';
+import ToolchainPanel from './components/ToolchainPanel';
 import GlobalSearch from './components/GlobalSearch';
 import NotificationCenter from './components/NotificationCenter';
 
@@ -100,6 +101,7 @@ export default function App() {
     usage: <UsagePanel />,
     morning: <MorningPanel />,
     settings: <SettingsPanel />,
+    toolchain: <ToolchainPanel />,
   };
 
   return (
diff --git a/src/frontend/src/components/ToolchainPanel.tsx b/src/frontend/src/components/ToolchainPanel.tsx
new file mode 100644
index 0000000..37c421d
--- /dev/null
+++ b/src/frontend/src/components/ToolchainPanel.tsx
@@ -0,0 +1,205 @@
+/**
+ * ToolchainPanel — 工具链事件（系统级）
+ * 展示 _toolchain 项目的 tasks：CI/PR/部署/Review 通知
+ */
+import { useEffect, useState } from 'react';
+
+const STATUS_COLORS: Record<string, string> = {
+  pending: '#f59e0b22', claimed: '#6a9eff22', working: '#6a9eff22',
+  review: '#818cf822', done: '#2ecc8a22', failed: '#ef444422',
+  cancelled: '#6b728022', blocked: '#ef444422',
+};
+
+const STATUS_LABELS: Record<string, string> = {
+  pending: '待处理', claimed: '已认领', working: '处理中',
+  review: '审查中', done: '已完成', failed: '失败',
+  cancelled: '已取消', blocked: '已拦截',
+};
+
+function fmtTime(iso: string): string {
+  try {
+    const d = new Date(iso.includes('T') ? iso : iso.replace(' ', 'T') + 'Z');
+    const now = Date.now();
+    const diff = now - d.getTime();
+    const mins = Math.floor(diff / 60000);
+    if (mins < 1) return '刚刚';
+    if (mins < 60) return `${mins}分钟前`;
+    const hrs = Math.floor(mins / 60);
+    if (hrs < 24) return `${hrs}小时前`;
+    return `${d.getMonth() + 1}/${d.getDate()} ${d.getHours()}:${String(d.getMinutes()).padStart(2, '0')}`;
+  } catch { return iso; }
+}
+
+export default function ToolchainPanel() {
+  const [tasks, setTasks] = useState<any[]>([]);
+  const [selectedId, setSelectedId] = useState<string | null>(null);
+  const [detail, setDetail] = useState<any>(null);
+  const [searchQuery, setSearchQuery] = useState('');
+  const [loading, setLoading] = useState(false);
+
+  const loadTasks = async (q?: string) => {
+    setLoading(true);
+    try {
+      const url = q
+        ? `/api/projects/_toolchain/tasks?q=${encodeURIComponent(q)}`
+        : `/api/projects/_toolchain/tasks`;
+      const res = await fetch(url);
+      if (res.ok) {
+        const data = await res.json();
+        setTasks(data.tasks || []);
+      }
+    } catch { /* */ }
+    setLoading(false);
+  };
+
+  useEffect(() => { loadTasks(); }, []);
+
+  // 搜索防抖 300ms
+  useEffect(() => {
+    const timer = setTimeout(() => {
+      if (searchQuery !== undefined) loadTasks(searchQuery || undefined);
+    }, 300);
+    return () => clearTimeout(timer);
+  }, [searchQuery]);
+
+  useEffect(() => {
+    if (!selectedId) { setDetail(null); return; }
+    (async () => {
+      try {
+        const res = await fetch(
+          `/api/projects/_toolchain/tasks/${selectedId}?expand=comments`
+        );
+        if (res.ok) setDetail(await res.json());
+      } catch { /* */ }
+    })();
+  }, [selectedId]);
+
+  // 渲染评论列表（兼容 expand 和裸 list 格式）
+  const renderComments = (comments: any[]) => {
+    if (!comments || comments.length === 0) return null;
+    return (
+      <div style={{ marginTop: 16 }}>
+        <div style={{ fontSize: 11, color: 'var(--muted)', marginBottom: 8, fontWeight: 600 }}>
+          📋 处理记录 ({comments.length})
+        </div>
+        {comments.map((c: any, i: number) => (
+          <div key={c.id || i} style={{
+            padding: '8px 12px', background: 'var(--panel2)', borderRadius: 6, marginBottom: 6,
+          }}>
+            <div style={{ display: 'flex', justifyContent: 'space-between', marginBottom: 4 }}>
+              <span style={{ fontSize: 10, color: 'var(--acc)', fontWeight: 600 }}>
+                {c.author || 'system'}
+              </span>
+              <span style={{ fontSize: 9, color: 'var(--muted)' }}>{fmtTime(c.created_at)}</span>
+            </div>
+            <div style={{ fontSize: 12, color: '#a0aec0', lineHeight: 1.5 }}>{c.body}</div>
+          </div>
+        ))}
+      </div>
+    );
+  };
+
+  return (
+    <div style={{ display: 'flex', gap: 0, height: '100%', minHeight: 500 }}>
+      {/* 左侧列表 */}
+      <div style={{ width: 380, borderRight: '1px solid var(--line)', display: 'flex', flexDirection: 'column', flexShrink: 0 }}>
+        {/* 搜索栏 + 刷新 */}
+        <div style={{ padding: '10px 14px', borderBottom: '1px solid var(--line)', display: 'flex', gap: 6, alignItems: 'center' }}>
+          <input
+            type="text"
+            placeholder="搜索工具链事件..."
+            value={searchQuery}
+            onChange={e => setSearchQuery(e.target.value)}
+            style={{
+              flex: 1, padding: '4px 8px', borderRadius: 4, fontSize: 11,
+              border: '1px solid #2a3550', background: '#161b2e', color: '#dde4f8',
+              outline: 'none',
+            }}
+          />
+          <button onClick={() => loadTasks(searchQuery || undefined)} style={{
+            padding: '3px 8px', borderRadius: 4, fontSize: 10,
+            border: '1px solid #2a3550', background: '#161b2e', color: '#8899aa', cursor: 'pointer',
+          }}>🔄</button>
+          <span style={{ fontSize: 10, color: 'var(--muted)' }}>{tasks.length} 条</span>
+        </div>
+
+        {/* 事件列表 */}
+        <div style={{ flex: 1, overflowY: 'auto' }}>
+          {tasks.length === 0 && (
+            <div style={{ textAlign: 'center', padding: 40, color: 'var(--muted)', fontSize: 12 }}>
+              {loading ? '加载中...' : '暂无工具链事件'}
+            </div>
+          )}
+          {tasks.map((t: any) => (
+            <div key={t.id} onClick={() => setSelectedId(t.id)} style={{
+              padding: '10px 14px', borderBottom: '1px solid var(--line)',
+              cursor: 'pointer', transition: 'background .15s',
+              background: selectedId === t.id ? 'var(--panel2)' : 'transparent',
+            }}
+              onMouseEnter={e => e.currentTarget.style.background = 'var(--panel2)'}
+              onMouseLeave={e => e.currentTarget.style.background = selectedId === t.id ? 'var(--panel2)' : 'transparent'}
+            >
+              <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center', marginBottom: 4 }}>
+                <span style={{
+                  fontSize: 9, padding: '1px 5px', borderRadius: 3,
+                  background: STATUS_COLORS[t.status] || '#2a3550',
+                  color: '#dde4f8',
+                }}>{STATUS_LABELS[t.status] || t.status}</span>
+                <span style={{ fontSize: 9, color: 'var(--muted)' }}>{fmtTime(t.created_at)}</span>
+              </div>
+              <div style={{
+                fontSize: 12, fontWeight: 500, color: '#dde4f8',
+                overflow: 'hidden', textOverflow: 'ellipsis', whiteSpace: 'nowrap',
+              }}>{t.title}</div>
+            </div>
+          ))}
+        </div>
+      </div>
+
+      {/* 右侧详情 */}
+      <div style={{ flex: 1, padding: '16px 20px', overflowY: 'auto' }}>
+        {!detail ? (
+          <div style={{ textAlign: 'center', padding: 60, color: 'var(--muted)' }}>
+            <div style={{ fontSize: 36, marginBottom: 12 }}>⛓️</div>
+            <div style={{ fontSize: 13 }}>选择一条事件查看详情</div>
+          </div>
+        ) : (
+          <>
+            {/* 头部 */}
+            <div style={{ marginBottom: 16 }}>
+              <div style={{ display: 'flex', alignItems: 'center', gap: 8, marginBottom: 6 }}>
+                <span style={{ fontSize: 10, padding: '2px 6px', borderRadius: 4, background: STATUS_COLORS[detail.status] || '#2a3550', color: '#dde4f8' }}>
+                  {STATUS_LABELS[detail.status] || detail.status}
+                </span>
+                <span style={{ fontSize: 10, color: 'var(--muted)' }}>{detail.id}</span>
+              </div>
+              <div style={{ fontSize: 18, fontWeight: 700, lineHeight: 1.3 }}>{detail.title}</div>
+              <div style={{ fontSize: 12, color: 'var(--muted)', marginTop: 6 }}>
+                {fmtTime(detail.created_at)}
+              </div>
+            </div>
+
+            {/* 正文 */}
+            {detail.description && (
+              <div style={{
+                padding: '14px 16px', background: 'var(--panel2)', borderRadius: 10,
+                fontSize: 13, color: '#a0aec0', lineHeight: 1.7, whiteSpace: 'pre-wrap',
+              }}>
+                {detail.description}
+              </div>
+            )}
+
+            {/* action_report 评论 — expand 格式 {items, total_count} */}
+            {detail.comments && detail.comments.items && detail.comments.items.length > 0 &&
+              renderComments(detail.comments.items)
+            }
+            {/* 兼容裸 list 格式 */}
+            {detail.comments && Array.isArray(detail.comments) && detail.comments.length > 0 &&
+              renderComments(detail.comments)
+            }
+          </>
+        )}
+      </div>
+    </div>
+  );
+}
diff --git a/src/frontend/src/store.ts b/src/frontend/src/store.ts
index 7ca128b..6bfb4cb 100644
--- a/src/frontend/src/store.ts
+++ b/src/frontend/src/store.ts
@@ -120,7 +120,7 @@ export function isArchived(t: Task): boolean {
 export type TabKey =
   | 'tasks' | 'court' | 'monitor' | 'agents'
   | 'models' | 'skills' | 'sessions' | 'archives' | 'templates'
-  | 'usage' | 'settings' | 'officials' | 'morning' | 'mail';
+  | 'usage' | 'settings' | 'officials' | 'morning' | 'mail' | 'toolchain';
 
 export const TAB_DEFS: { key: TabKey; label: string; icon: string }[] = [
   { key: 'tasks',     label: '任务看板', icon: '📜' },
@@ -135,6 +135,7 @@ export const TAB_DEFS: { key: TabKey; label: string; icon: string }[] = [
   { key: 'archives',  label: '奏折阁',   icon: '📜' },
   { key: 'morning',   label: '早朝简报', icon: '🌅' },
   { key: 'templates', label: '任务模板', icon: '📋' },
+  { key: 'toolchain', label: '工具链',   icon: '⛓️' },
   { key: 'settings',  label: '系统设置', icon: '⚙️' },
 ];