diff --git a/Agent.md b/Agent.md
index 2c2e1d2..09d2b38 100644
--- a/Agent.md
+++ b/Agent.md
@@ -85,7 +85,7 @@ Usage: say "tool loop" for the whole process, "round N" for a single LLM request
   - Streaming chat with delta rendering (16ms batching), markdown on done (marked + DOMPurify + local highlight.js subset), tool call status cards (2000-char truncation + expand)
   - Session list/switch/new/delete + right-click rename (context menu, #423) synced with daemon; own-stream busy lock (G65); broadcast streams from other clients tagged "来自其他客户端"
   - Disconnect/reconnect: red status dot, auto daemon respawn (stale-port detection), session resume, input bar restored on disconnect (no 30s fake-timeout)
-  - Unit tests `npm test` (237: 44 daemon_client + 19 conn-manager + 22 app-commands + 115 renderer smoke + 15 i18n + 7 integration + 3 commands + 5 build-config + 7 gui-state); RESPONSE_TYPES mirror daemon protocol verified against `daemon.py`
+  - Unit tests `npm test` (238: 44 daemon_client + 19 conn-manager + 22 app-commands + 116 renderer smoke + 15 i18n + 7 integration + 3 commands + 5 build-config + 7 gui-state); RESPONSE_TYPES mirror daemon protocol verified against `daemon.py`
 - **Scheduled tasks** — Task generalization + CRUD (rant 2026-08-12T18:23:15, #709/#710/#711)
   - Task handler generalized: `TaskHandler` (renamed from `EvolutionHandler`), repo-configured self-heal for any project, template lookup builtin → `~/.emrg/task-templates/<name>.md` → fallback
   - Daemon commands: `task_create/update/delete` + `task_template_create/list/update/delete` (tasks stored in `~/.emrg/tasks.yml`, custom type templates in `~/.emrg/task-templates/`)
@@ -119,7 +119,7 @@ pkill -f "emrg.server"; rm -f ~/.emrg/emrgd.port; python -m emrg
 ```
 
 Python: `uv run pytest tests/ -v` (801) — import check: `uv run python -c "from emrg.client.app import run_client"`
-GUI: `cd emrg/gui && npm test` (237: 44 daemon_client + 19 conn-manager + 22 app-commands + 115 renderer smoke + 15 i18n + 7 integration + 3 commands + 5 build-config + 7 gui-state) — syntax: `node --check main.js preload.js daemon_client.js renderer/js/*.js`
+GUI: `cd emrg/gui && npm test` (238: 44 daemon_client + 19 conn-manager + 22 app-commands + 116 renderer smoke + 15 i18n + 7 integration + 3 commands + 5 build-config + 7 gui-state) — syntax: `node --check main.js preload.js daemon_client.js renderer/js/*.js`
 CI: `uv run pytest` (ubuntu + **windows-2025 matrix** — Windows pytest 回归在 PR CI 即失败，v0.2.29 教训 #725) + GUI tests + **actionlint workflow lint** (`rhysd/actionlint@v1.7.12` gate, #444 — workflow 解析错误在 PR CI 即失败，如 `if:` secrets 上下文)
 Re-trigger: `scripts/re-trigger-ci.sh [branch]` (workflow_dispatch, #527 — 替代空 commit 重触发：Actions outage 会整段丢弃 push 事件，dispatch 走 API 路径不受影响)
 
diff --git a/emrg/gui/renderer/css/layout.css b/emrg/gui/renderer/css/layout.css
index 0bcdcb7..e291479 100644
--- a/emrg/gui/renderer/css/layout.css
+++ b/emrg/gui/renderer/css/layout.css
@@ -260,6 +260,21 @@
 .session-view.active {
   display: flex;
 }
+/* 会话标题栏：项目/名称(id) 或 项目/id，滚动置顶、全宽贴边（负 margin 抵消 .session-view padding） */
+.session-header {
+  position: sticky;
+  top: 0;
+  z-index: 5;
+  flex-shrink: 0;
+  margin: calc(-1 * var(--sp-5)) calc(-1 * var(--sp-5)) var(--sp-3) !important;
+  padding: var(--sp-3) var(--sp-5);
+  width: auto !important;
+  max-width: none !important;
+  font-size: var(--fs-secondary);
+  color: var(--text-2);
+  background: var(--bg);
+  border-bottom: 1px solid var(--border);
+}
 /* P3 finalize：会话连接断开标记（P4 每会话容器可见；激活会话另走全局横幅） */
 .session-view.disconnected {
   opacity: 0.55;
@@ -756,8 +771,6 @@ body.sidebar-collapsed #app {
   flex: 1;
   overflow-y: auto;
   padding: var(--sp-3);
-  display: flex;
-  flex-direction: column;
   gap: var(--sp-2);
 }
 .result-empty {
diff --git a/emrg/gui/renderer/js/app.js b/emrg/gui/renderer/js/app.js
index a467c4a..82dfad0 100644
--- a/emrg/gui/renderer/js/app.js
+++ b/emrg/gui/renderer/js/app.js
@@ -553,12 +553,41 @@ const App = (() => {
     let view = [...$("workspace").children].find((c) => c.dataset?.sid === sid);
     if (!view) {
       view = el("div", { class: "session-view", id: "session-view-" + sid, dataset: { sid } });
+      // 顶部标题栏（项目/名称(id) 或 项目/id）；Chat.clear 保留它，消息节点在其后追加
+      view.appendChild(el("div", { class: "session-header" }));
       $("workspace").appendChild(view);
     }
     Chat.registerContainer(sid, view); // 幂等：重复注册覆盖同一元素
     return view;
   }
 
+  /** 会话标题栏显示的项目名：openSessions 优先，回退全局 projectDir 的 basename */
+  function sessionProjectName(sid) {
+    const os = state.openSessions.find((s) => s.sid === sid);
+    if (os && os.projectName) return os.projectName;
+    const dir = state.projectDir || "";
+    const parts = dir.split(/[\\/]/).filter(Boolean);
+    return parts[parts.length - 1] || dir;
+  }
+
+  // 会话视图顶部标题栏：项目/名称(id) 或 项目/id（有 title 时带 (id) 后缀）
+  function renderSessionHeader(sid) {
+    if (!sid) return;
+    const view = [...$("workspace").children].find((c) => c.dataset?.sid === sid);
+    if (!view) return;
+    let header = view.querySelector(".session-header");
+    if (!header) {
+      header = el("div", { class: "session-header" });
+      view.insertBefore(header, view.firstChild);
+    }
+    const cur = state.sessions.find((s) => s.session_id === sid) || {};
+    const project = sessionProjectName(sid);
+    const title = cur.title && cur.title !== sid ? cur.title : "";
+    const text = title ? `${project}/${title}(${sid})` : `${project}/${sid}`;
+    header.textContent = text;
+    header.title = text; // 悬停完整信息
+  }
+
   // rant 18:55:09 v0.2：工作区视图互斥（激活会话视图 → 同步隐藏所有面板视图 + 清导航高亮）
   function activateSessionView(sid) {
     for (const p of VIEWS) {
@@ -575,6 +604,7 @@ const App = (() => {
       if (child.classList) child.classList.remove("active");
     }
     view.classList.add("active");
+    renderSessionHeader(sid); // 标题栏随激活/重命名刷新
     if (!existed) Chat.scrollToBottom(sid);
     setWorkspaceChrome("sessions"); // 恢复输入区 + 成果面板（含 back-to-bottom 按位置恢复）
     state.activeView = "sessions";
@@ -875,6 +905,8 @@ const App = (() => {
       const sessions = await window.emrg.listSessions();
       state.sessions = sessions;
       Sidebar.render(sessions);
+      Sidebar.renderOpenSessions(state.openSessions); // 打开会话区 title 同步刷新
+      renderSessionHeader(state.sessionId); // 激活会话标题栏同步刷新
     } catch { /* 忽略 */ }
   }
 
diff --git a/emrg/gui/renderer/js/chat.js b/emrg/gui/renderer/js/chat.js
index 86759ba..3a79e3d 100644
--- a/emrg/gui/renderer/js/chat.js
+++ b/emrg/gui/renderer/js/chat.js
@@ -95,7 +95,12 @@ const Chat = (() => {
 
   function clear(sid) {
     const key = sid || null;
-    chatContainer(key).innerHTML = "";
+    const cv = chatContainer(key);
+    // 清空消息节点但保留 .session-header 标题栏（app.js 每个 .session-view 顶部固定）
+    for (const node of [...cv.children]) {
+      if (node.classList && node.classList.contains("session-header")) continue;
+      node.remove();
+    }
     st(key).groupNodes.clear();
     st(key).toolRows.clear();
     st(key).doneRids.clear();
diff --git a/emrg/gui/test/renderer.smoke.test.js b/emrg/gui/test/renderer.smoke.test.js
index ebe60c3..092aca5 100644
--- a/emrg/gui/test/renderer.smoke.test.js
+++ b/emrg/gui/test/renderer.smoke.test.js
@@ -247,6 +247,9 @@ function makeSandbox(overrides = {}) {
 /** 等 microtask 完成 */
 const tick = () => new Promise((r) => setTimeout(r, 20));
 
+/** 消息节点数：排除 .session-header 标题栏（app.js 每会话视图顶部固定） */
+const msgCount = (el) => (el.children || []).filter((c) => !(c.className || "").split(/\s+/).includes("session-header")).length;
+
 test("8 模块按序加载且全局符号解析", () => {
   const { ctx } = makeSandbox();
   const out = vm.runInContext(
@@ -987,6 +990,19 @@ test("P2 框架：右栏 Tab 栏渲染 + 切换 pane 显隐", async () => {
   assert.ok(els["result-list"].classList.contains("active"), "切回产物 pane");
 });
 
+test("rant 20:49:45：产物 pane 显示由 .result-pane 控制——.result-list 不得重声明 display", () => {
+  // CSS 源级断言（沙箱无 CSS 引擎）。根因：.result-list 曾声明 display:flex（同特异性 0,1,0
+  // 后定义胜出）覆盖 .result-pane{display:none}，导致文件 tab 下产物 pane 恒显示。
+  const css = fs.readFileSync(path.join(RENDERER_CSS, "layout.css"), "utf8");
+  // 定位独立 .result-list 规则（行首选择器，排除 #result-panel.collapsed .result-list 前缀形态）
+  const start = css.indexOf("\n.result-list {") + 1;
+  const end = css.indexOf("\n.result-empty {", start); // 下一个独立规则
+  const block = css.slice(start, end > start ? end : start + 400);
+  assert.ok(start > 0, ".result-list 独立规则应存在");
+  assert.ok(!/display\s*:/.test(block), ".result-list 不得重声明 display（显隐由 .result-pane/.result-pane.active 控制）");
+  assert.ok(!/flex-direction\s*:/.test(block), ".result-list 不得重声明 flex-direction（.result-pane.active 已提供）");
+});
+
 test("P2 框架：resizer 拖拽改宽度 + .dragging 抑制 transition", async () => {
   const { ctx, win, els } = makeSandbox();
   await tick();
@@ -1710,8 +1726,8 @@ test("P3 s2: activateSessionView 建独立容器并切换 display（仅激活可
   assert.strictEqual(els["workspace"].children.length, 2, "both views live under the #workspace wrapper");
   // 无 sid 渲染 → 落激活会话容器（slice 2 回退链第二跳）
   ctx.EMRG_Chat.addSystemMessage("to-active");
-  assert.strictEqual(vb.children.length, 1, "unsid'd node goes to active session view");
-  assert.strictEqual(va.children.length, 0, "inactive view untouched (state preserved)");
+  assert.strictEqual(msgCount(vb), 1, "unsid'd node goes to active session view");
+  assert.strictEqual(msgCount(va), 0, "inactive view untouched (state preserved)");
 });
 
 test("P3 s2: Chat.clear 只清目标容器——无 sid 清激活，带 sid 定向清", async () => {
@@ -1728,15 +1744,15 @@ test("P3 s2: Chat.clear 只清目标容器——无 sid 清激活，带 sid 定
   );
   const va = ctx.EMRG_Chat.chatContainer("sess-a");
   const vb = ctx.EMRG_Chat.chatContainer("sess-b");
-  assert.strictEqual(va.children.length, 1, "sess-a has its node");
-  assert.strictEqual(vb.children.length, 1, "sess-b has its node");
+  assert.strictEqual(msgCount(va), 1, "sess-a has its node");
+  assert.strictEqual(msgCount(vb), 1, "sess-b has its node");
   // 无 sid clear（/clear 的既有调用形态）→ 只清激活容器
   ctx.EMRG_Chat.clear();
-  assert.strictEqual(vb.children.length, 0, "active view cleared");
-  assert.strictEqual(va.children.length, 1, "inactive view retained (切回继续看到原消息)");
+  assert.strictEqual(msgCount(vb), 0, "active view cleared");
+  assert.strictEqual(msgCount(va), 1, "inactive view retained (切回继续看到原消息)");
   // 带 sid clear → 定向清
   ctx.EMRG_Chat.clear("sess-a");
-  assert.strictEqual(va.children.length, 0, "targeted clear empties sess-a");
+  assert.strictEqual(msgCount(va), 0, "targeted clear empties sess-a");
 });
 
 test("P3 s2: 未注册 sid 的事件落激活容器，状态桶仍按 sid 隔离", async () => {
@@ -1750,7 +1766,7 @@ test("P3 s2: 未注册 sid 的事件落激活容器，状态桶仍按 sid 隔离
   const vx = ctx.EMRG_Chat.chatContainer("sess-x");
   // 广播流（sid=sess-other 无独立容器，P4 前过渡）→ 节点落激活容器、状态入自己桶
   ctx.EMRG_Chat.handleDelta([{ request_id: "r1", content: "fallback", done: false, delta: true }], "sess-other");
-  assert.strictEqual(vx.children.length, 1, "unregistered sid renders into active view");
+  assert.strictEqual(msgCount(vx), 1, "unregistered sid renders into active view");
   assert.strictEqual(ctx.EMRG_Chat.groupNodesFor("sess-other").size, 1, "state bucket keyed by own sid");
   assert.strictEqual(ctx.EMRG_Chat.groupNodesFor("sess-x").size, 0, "active bucket untouched by other sid");
 });