diff --git a/frontend/app/components/assistant-ui/activity-panel.tsx b/frontend/app/components/assistant-ui/activity-panel.tsx
index 4a03773..5532092 100644
--- a/frontend/app/components/assistant-ui/activity-panel.tsx
+++ b/frontend/app/components/assistant-ui/activity-panel.tsx
@@ -984,7 +984,18 @@ function summarizeLiveRunEvents(
 	events: readonly LiveRunEvent[],
 ) {
 	const lines: string[] = [];
+	let contentBuffer = "";
+	const flushContentBuffer = () => {
+		const preview = compactLiveContentDelta(contentBuffer);
+		contentBuffer = "";
+		if (preview) lines.push(`输出：${preview}`);
+	};
 	for (const event of events) {
+		if (event.type === "content_delta") {
+			contentBuffer += event.delta ?? "";
+			continue;
+		}
+		flushContentBuffer();
 		if (event.type === "run_queued") {
 			lines.push("当前会话已有任务在执行，本轮正在排队。");
 		}
@@ -1013,6 +1024,7 @@ function summarizeLiveRunEvents(
 			lines.push("正在整理回复");
 		}
 	}
+	flushContentBuffer();
 	if (runStatus.current_stage && lines.at(-1) !== runStatus.current_stage) {
 		lines.push(runStatus.current_stage);
 	}
@@ -1030,6 +1042,14 @@ function isNoisyLiveDelta(value: string) {
 	return value === "。" || value === "，" || value === "," || value.length <= 1;
 }
 
+function compactLiveContentDelta(value: string) {
+	const normalized = value.replace(/\s+/g, " ").trim();
+	if (!normalized || isNoisyLiveDelta(normalized)) return "";
+	return normalized.length <= 36
+		? normalized
+		: `${normalized.slice(Math.max(0, normalized.length - 35))}…`;
+}
+
 function collectActivityItems(messages: readonly MessageState[]) {
 	const items: ActivityItem[] = [];
 
diff --git a/frontend/app/components/assistant-ui/thread-list.tsx b/frontend/app/components/assistant-ui/thread-list.tsx
index d447cba..c0004b5 100644
--- a/frontend/app/components/assistant-ui/thread-list.tsx
+++ b/frontend/app/components/assistant-ui/thread-list.tsx
@@ -24,8 +24,8 @@ import {
 	readActiveSessionId,
 	writeActiveSessionId,
 } from "@/lib/claw-active-session";
-import { pushHomeUrl, pushSessionUrl } from "@/lib/claw-session-url";
 import { useClawSessionReplay } from "@/lib/claw-session-replay";
+import { pushHomeUrl, pushSessionUrl } from "@/lib/claw-session-url";
 
 type ClawSession = {
 	session_id: string;
@@ -647,7 +647,18 @@ function buildActiveRunParts(runStatus: ClawActiveRunStatus) {
 
 function summarizeRunEvents(runStatus: ClawActiveRunStatus) {
 	const lines: string[] = [];
+	let contentBuffer = "";
+	const flushContentBuffer = () => {
+		const preview = compactLiveContentDelta(contentBuffer);
+		contentBuffer = "";
+		if (preview) lines.push(`输出：${preview}`);
+	};
 	for (const event of runStatus.events ?? []) {
+		if (event.type === "content_delta") {
+			contentBuffer += event.delta ?? "";
+			continue;
+		}
+		flushContentBuffer();
 		if (event.type === "run_queued") {
 			lines.push("当前会话已有任务在执行，本轮正在排队。");
 		}
@@ -679,6 +690,7 @@ function summarizeRunEvents(runStatus: ClawActiveRunStatus) {
 			lines.push("等待用户 review");
 		}
 	}
+	flushContentBuffer();
 	if (runStatus.current_stage && lines.at(-1) !== runStatus.current_stage) {
 		lines.push(runStatus.current_stage);
 	}
@@ -689,6 +701,14 @@ function isNoisyLiveDelta(value: string) {
 	return value === "。" || value === "，" || value === "," || value.length <= 1;
 }
 
+function compactLiveContentDelta(value: string) {
+	const normalized = value.replace(/\s+/g, " ").trim();
+	if (!normalized || isNoisyLiveDelta(normalized)) return "";
+	return normalized.length <= 36
+		? normalized
+		: `${normalized.slice(Math.max(0, normalized.length - 35))}…`;
+}
+
 function buildRunToolParts(events: readonly ClawRunEvent[]) {
 	const resultById = new Map<string, ClawRunEvent>();
 	for (const event of events) {