diff --git a/Cargo.toml b/Cargo.toml
index 98daec3..87799a3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "picobot"
-version = "1.13.0"
+version = "1.13.1"
 edition = "2024"
 
 [dependencies]
diff --git a/webui/package-lock.json b/webui/package-lock.json
index 58ae6ec..06a363e 100644
--- a/webui/package-lock.json
+++ b/webui/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "picobot-webui",
-  "version": "1.13.0",
+  "version": "1.13.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "picobot-webui",
-      "version": "1.13.0",
+      "version": "1.13.1",
       "dependencies": {
         "bits-ui": "^2.0.0",
         "dompurify": "^3.4.12",
diff --git a/webui/package.json b/webui/package.json
index e9609a4..e5be8c7 100644
--- a/webui/package.json
+++ b/webui/package.json
@@ -1,7 +1,7 @@
 {
   "name": "picobot-webui",
   "private": true,
-  "version": "1.13.0",
+  "version": "1.13.1",
   "type": "module",
   "engines": {
     "node": ">=20"
diff --git a/webui/src/lib/components/SubAgentDefinitions.svelte b/webui/src/lib/components/SubAgentDefinitions.svelte
index 06479b5..f015725 100644
--- a/webui/src/lib/components/SubAgentDefinitions.svelte
+++ b/webui/src/lib/components/SubAgentDefinitions.svelte
@@ -10,8 +10,23 @@
   let error = $state("");
   let editing = $state(null);
   let saving = $state(false);
+  let reloading = $state(false);
+  let reloadStatus = $state(null);
+  let pollTimer = null;
   let { notify } = $props();
 
+  const phaseBadge = $derived.by(() => {
+    if (!reloadStatus) return "ok";
+    const map = { active: "ok", preparing: "run", draining: "run", activating: "run", failed: "fail" };
+    return map[reloadStatus.phase] || "ok";
+  });
+
+  const phaseLabel = $derived.by(() => {
+    if (!reloadStatus) return "";
+    const map = { active: "运行中", preparing: "准备中", draining: "等待任务完成", activating: "激活中", failed: "失败" };
+    return map[reloadStatus.phase] || reloadStatus.phase;
+  });
+
   const blank = () => ({
     id: "",
     description: "",
@@ -44,6 +59,33 @@
     }
   }
 
+  async function reload() {
+    reloading = true;
+    try {
+      const result = await api("/api/config/reload", { method: "POST" });
+      notify(result.message || "已触发热重载");
+      await pollReloadStatus();
+    } catch (caught) {
+      notify(caught.message, true);
+    } finally {
+      reloading = false;
+    }
+  }
+
+  async function pollReloadStatus() {
+    try { reloadStatus = await api("/api/config/reload/status"); } catch {}
+  }
+
+  function startPolling() {
+    stopPolling();
+    pollReloadStatus();
+    pollTimer = setInterval(pollReloadStatus, 3000);
+  }
+
+  function stopPolling() {
+    if (pollTimer) { clearInterval(pollTimer); pollTimer = null; }
+  }
+
   function toggleTool(list, name) {
     const i = list.indexOf(name);
     if (i >= 0) list.splice(i, 1);
@@ -132,7 +174,7 @@
       else if (editing.delegateMode === "list") payload.delegates = editing.delegates;
       await api("/api/agents", { method: "POST", body: JSON.stringify(payload) });
       editing = null;
-      notify("子代理已保存（需重载配置生效）");
+      notify("子代理已保存，点击「热重载」使其生效");
       await load();
     } catch (caught) {
       notify(caught.message, true);
@@ -181,7 +223,11 @@
     return tool?.description || "";
   }
 
-  onMount(load);
+  onMount(() => {
+    load();
+    startPolling();
+    return stopPolling;
+  });
 </script>
 
 <div class="definitions">
@@ -189,10 +235,16 @@
     <div>
       <h2 style="margin:0">具名子代理</h2>
       <p style="margin:2px 0 0;color:var(--muted);font-size:12px">
-        子代理由 <code>~/.picobot/agents/*.md</code> 定义；工具、Skill、Provider 与模型在此直接指定。主 Agent 可委托给任意子代理。改动需热重载后生效。
+        子代理由 <code>~/.picobot/agents/*.md</code> 定义；工具、Skill、Provider 与模型在此直接指定。保存后点击「热重载」使改动生效。
       </p>
     </div>
-    <button class="primary" onclick={startNew}><Icon name="add" size={16} />新增子代理</button>
+    <div class="toolbar-actions">
+      {#if reloadStatus}
+        <span class="badge {phaseBadge}" title={reloadStatus.last_error || ""}>{phaseLabel}</span>
+      {/if}
+      <button class="secondary" onclick={reload} disabled={reloading}><Icon name="refresh" size={15} />{reloading ? "重载中…" : "热重载"}</button>
+      <button class="primary" onclick={startNew}><Icon name="add" size={16} />新增子代理</button>
+    </div>
   </div>
 
   {#if loading}
@@ -239,7 +291,7 @@
     <button type="button" class="modal-scrim" onclick={cancelEdit} aria-label="关闭" tabindex="-1"></button>
     <div class="modal" role="dialog" aria-label="编辑子代理">
       <div class="editor-head">
-        <div><strong>{editing.id ? `编辑 ${editing.id}` : "新增子代理"}</strong><small>保存后需热重载配置生效</small></div>
+        <div><strong>{editing.id ? `编辑 ${editing.id}` : "新增子代理"}</strong><small>保存后点击「热重载」使改动生效</small></div>
         <button class="icon-button" aria-label="关闭" onclick={cancelEdit}><Icon name="dismiss" size={18} /></button>
       </div>
       <div class="agent-form">
@@ -288,7 +340,7 @@
           {/each}
         </div>
 
-        <div class="form-label">可继续委托给 <small>（该子代理可再委托给谁）</small></div>
+        <div class="form-label">递归委托 <small>（该子代理可再委托给哪些子代理）</small></div>
         <select bind:value={editing.delegateMode}>
           <option value="default">默认：仅 general-purpose</option>
           <option value="none">不可继续委托</option>
@@ -298,7 +350,7 @@
         {#if editing.delegateMode === "list"}
           <div class="tag-row selectable">
             {#each agents.filter((a) => a.id !== editing.id) as agent (agent.id)}
-              <button class="tag pick" class:picked={editing.delegates.includes(agent.id)} onclick={() => toggleTool(editing.delegates, agent.id)}>{agent.id}</button>
+              <button class="tag pick" class:picked={editing.delegates.includes(agent.id)} title={agent.description} onclick={() => toggleTool(editing.delegates, agent.id)}>{agent.id}</button>
             {/each}
           </div>
         {/if}
@@ -319,7 +371,9 @@
   .tag { padding: 2px 8px; border: 1px solid var(--line); border-radius: 4px; color: var(--text-soft); background: var(--code-bg); font-size: 11px; font-family: var(--font-mono); }
   .tag-row.selectable .tag { cursor: pointer; user-select: none; }
   .tag-row.selectable .tag.picked { border-color: var(--accent-border); color: var(--accent); background: var(--accent-soft); }
-  .card-actions { display: flex; align-items: center; gap: 8px; }
+  .card-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
+  .card-actions button { white-space: nowrap; flex-shrink: 0; }
+  .toolbar-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
   .icon-button.danger:hover { color: var(--danger); border-color: var(--danger-border); }
   .modal-scrim { position: fixed; inset: 0; z-index: 40; border: 0; padding: 0; cursor: default; background: rgba(0,0,0,.45); }
   .modal { position: fixed; z-index: 41; top: 6vh; left: 50%; transform: translateX(-50%); width: min(920px, 94vw); max-height: 88vh; overflow: auto; border: 1px solid var(--line-strong); border-radius: 10px; background: var(--panel); box-shadow: var(--shadow-16, var(--shadow-8)); }
diff --git a/webui/src/pages/AgentsPage.svelte b/webui/src/pages/AgentsPage.svelte
index 9196a91..a95f445 100644
--- a/webui/src/pages/AgentsPage.svelte
+++ b/webui/src/pages/AgentsPage.svelte
@@ -235,7 +235,7 @@
       <div>
         <h2 style="margin:0">子代理活动</h2>
         <p style="margin:2px 0 0;color:var(--muted);font-size:12px">
-          查看活动中的子代理与历史运行；子代理定义在「配置 → 子代理定义」中管理。
+          查看活动中的子代理与历史运行；子代理定义在「配置 → 子代理」中管理。
         </p>
       </div>
       <button class="secondary" onclick={loadTasks}><Icon name="refresh" size={16} />刷新</button>
diff --git a/webui/src/pages/SettingsPage.svelte b/webui/src/pages/SettingsPage.svelte
index 7e6ccc6..dfa55ec 100644
--- a/webui/src/pages/SettingsPage.svelte
+++ b/webui/src/pages/SettingsPage.svelte
@@ -121,7 +121,7 @@
   <div class="settings-grid">
     <Tabs.Root value={tab} onValueChange={changeTab} orientation="vertical">
       <Tabs.List class="settings-nav" aria-label="设置分类">
-        <Tabs.Trigger value="appearance">外观</Tabs.Trigger><Tabs.Trigger value="config">config.json</Tabs.Trigger><Tabs.Trigger value="user">USER.md</Tabs.Trigger><Tabs.Trigger value="agents">AGENTS.md</Tabs.Trigger><Tabs.Trigger value="subagents">子代理定义</Tabs.Trigger>
+        <Tabs.Trigger value="appearance">外观</Tabs.Trigger><Tabs.Trigger value="config">config.json</Tabs.Trigger><Tabs.Trigger value="user">USER.md</Tabs.Trigger><Tabs.Trigger value="agents">AGENTS.md</Tabs.Trigger><Tabs.Trigger value="subagents">子代理</Tabs.Trigger>
       </Tabs.List>
     </Tabs.Root>