diff --git a/internal/cloud/access-control.test.ts b/internal/cloud/access-control.test.ts
index 9c3501ef..c8d1551f 100644
--- a/internal/cloud/access-control.test.ts
+++ b/internal/cloud/access-control.test.ts
@@ -1181,7 +1181,13 @@ test("cloud api repairs conversation snapshot when persisted result advances las
     const aliceCreate = await postJson(port, "/v1/admin/users", { username: "alice-issue842-snapshot", password: "alice-pass" }, adminLogin.cookie);
     assert.equal(aliceCreate.status, 201);
     const aliceLogin = await postJson(port, "/auth/login", { username: "alice-issue842-snapshot", password: "alice-pass" });
-    const finalText = "持久化验收OK。";
+    const finalText = [
+      "持久化验收OK。",
+      "",
+      "| Skill | 状态 |",
+      "|---|---|",
+      "| hwlab-agent-runtime | 可用 |"
+    ].join("\n");
     codeAgentChatResults.set("trc_issue842_persisted_final", {
       status: "completed",
       traceId: "trc_issue842_persisted_final",
@@ -1221,6 +1227,7 @@ test("cloud api repairs conversation snapshot when persisted result advances las
     assert.equal(listed.lastTraceId, "trc_issue842_persisted_final");
     assert.equal(listed.messages.at(-1).traceId, "trc_issue842_persisted_final");
     assert.equal(listed.messages.at(-1).text, finalText);
+    assert.match(listed.messages.at(-1).text, /\n\|---\|---\|\n/u);
     assert.equal(listed.messages.at(-1).status, "idle");
 
     const direct = await getJson(port, "/v1/agent/conversations/cnv_issue842_snapshot", aliceLogin.cookie);
@@ -1239,6 +1246,7 @@ test("cloud api repairs conversation snapshot when persisted result advances las
     assert.equal(selected.status, 200);
     assert.equal(selected.body.workspace.selectedConversation.messages.at(-1).traceId, "trc_issue842_persisted_final");
     assert.equal(selected.body.workspace.selectedConversation.messages.at(-1).text, finalText);
+    assert.match(selected.body.workspace.selectedConversation.messages.at(-1).text, /\n\|---\|---\|\n/u);
   } finally {
     await new Promise((resolve, reject) => {
       server.close((error) => (error ? reject(error) : resolve()));
diff --git a/internal/cloud/access-control.ts b/internal/cloud/access-control.ts
index b297faec..388c3558 100644
--- a/internal/cloud/access-control.ts
+++ b/internal/cloud/access-control.ts
@@ -2447,9 +2447,15 @@ function conversationNeedsTerminalRepair(conversation, traceId) {
   const latestAgent = latestAgentConversationMessage(messages);
   if (!traceMessage) return Boolean(latestAgent && traceId === safeTraceIdLocal(conversation.lastTraceId ?? conversation.session?.lastTraceId ?? conversation.snapshot?.lastTraceId));
   if (latestAgent?.traceId && latestAgent.traceId !== traceId && traceId === safeTraceIdLocal(conversation.lastTraceId ?? conversation.session?.lastTraceId ?? conversation.snapshot?.lastTraceId)) return true;
+  if (markdownTextLooksFlattened(traceMessage.text ?? traceMessage.content ?? traceMessage.message) && traceId === safeTraceIdLocal(conversation.lastTraceId ?? conversation.session?.lastTraceId ?? conversation.snapshot?.lastTraceId)) return true;
   const messageStatus = textOr(traceMessage.status, "").toLowerCase();
   return ["", "running", "busy", "pending", "active"].includes(messageStatus);
 }
+function markdownTextLooksFlattened(value) {
+  const text = conversationTextRaw(value).replace(/\r\n?/gu, "\n").trim();
+  if (!text || text.includes("\n")) return false;
+  return /\|\s*:?-{3,}:?\s*\|/u.test(text) || /```[\s\S]+```/u.test(text);
+}
 function terminalConversationRepairTraceId(conversation) {
   if (!conversation) return "";
   const lastTraceId = safeTraceIdLocal(conversation.lastTraceId ?? conversation.session?.lastTraceId ?? conversation.snapshot?.lastTraceId);
@@ -2734,7 +2740,7 @@ function firstConversationText(values = [], maxBytes = 12000) {
   return "";
 }
 function conversationText(value, maxBytes = 12000) {
-  const extracted = conversationTextRaw(value).replace(/\s+/gu, " ").trim();
+  const extracted = conversationTextRaw(value).replace(/\r\n?/gu, "\n").trim();
   if (!extracted || extracted === "[object Object]") return "";
   return boundedText(extracted, maxBytes);
 }
diff --git a/tools/src/hwlab-cli-lib.ts b/tools/src/hwlab-cli-lib.ts
index 4e0568ad..e8724035 100644
--- a/tools/src/hwlab-cli-lib.ts
+++ b/tools/src/hwlab-cli-lib.ts
@@ -1629,7 +1629,7 @@ async function sessionSwitchCommand(context: any) {
     })
   });
   if (responseSucceeded(response) && response.body?.workspace) await saveWorkspaceState(context, response.body.workspace);
-  return responsePayload("client.session.switch", response, context, { route: route("POST", pathName), workspace: normalizeWorkbenchWorkspace(response.body?.workspace), current: sessionSummary(response.body?.workspace?.selectedConversation), body: responseBodyForCli(response.body, context.parsed) });
+  return responsePayload("client.session.switch", response, context, { route: route("POST", pathName), workspace: normalizeWorkbenchWorkspace(response.body?.workspace), current: sessionSummary(response.body?.workspace?.selectedConversation), selectedConversation: finalResponseConversationSummary(response.body?.workspace?.selectedConversation), body: responseBodyForCli(response.body, context.parsed) });
 }
 
 async function sessionDeleteCommand(context: any) {
@@ -3209,7 +3209,8 @@ function finalResponseConversationSummary(conversation: any) {
       status: text(latest.status),
       traceId: text(latest.traceId),
       updatedAt: text(latest.updatedAt),
-      textPreview: preview(latest.text, 240)
+      textPreview: preview(latest.text, 240),
+      markdown: markdownTextSummary(latest.text)
     }) : undefined
   });
 }
@@ -3223,7 +3224,25 @@ function finalResponseResultSummary(body: any) {
     sessionId: text(body?.sessionId),
     threadId: text(body?.threadId ?? body?.session?.threadId ?? body?.providerTrace?.threadId),
     assistantTextPreview: preview(resultText, 240),
-    assistantTextChars: resultText.length || undefined
+    assistantTextChars: resultText.length || undefined,
+    markdown: markdownTextSummary(resultText)
+  });
+}
+
+function markdownTextSummary(value: unknown) {
+  const source = messageTextValue(value);
+  if (!source) return undefined;
+  const newlineCount = (source.match(/\n/gu) ?? []).length;
+  const hasTableSeparator = /\|\s*:?-{3,}:?\s*\|/u.test(source);
+  const hasFence = /```/u.test(source);
+  const likelyFlattened = newlineCount === 0 && (hasTableSeparator || /```[\s\S]+```/u.test(source));
+  return clean({
+    textChars: source.length,
+    newlineCount,
+    hasTablePipe: /\|/u.test(source) || undefined,
+    hasTableSeparator: hasTableSeparator || undefined,
+    hasFence: hasFence || undefined,
+    likelyFlattened: likelyFlattened || undefined
   });
 }
 
@@ -3259,6 +3278,9 @@ function finalResponseValidation({ conversationId, projectId, inspectConversatio
   const inspectText = text(inspectedLatest?.text);
   const listText = text(listedLatest?.text);
   const resultText = assistantText(resultBody) || "";
+  const inspectMarkdown = markdownTextSummary(inspectText) ?? {};
+  const listMarkdown = markdownTextSummary(listText) ?? {};
+  const resultMarkdown = markdownTextSummary(resultText) ?? {};
   const failures = [
     !inspectConversation ? "inspect-conversation-missing" : "",
     !listedConversation ? "list-conversation-missing" : "",
@@ -3269,7 +3291,9 @@ function finalResponseValidation({ conversationId, projectId, inspectConversatio
     inspectedLatest && text(inspectedLatest.traceId) !== traceId ? "inspect-latest-agent-trace-mismatch" : "",
     listedLatest && text(listedLatest.traceId) !== traceId ? "list-latest-agent-trace-mismatch" : "",
     inspectText && resultText && inspectText !== resultText ? "inspect-text-result-mismatch" : "",
-    listText && resultText && listText !== resultText ? "list-text-result-mismatch" : ""
+    listText && resultText && listText !== resultText ? "list-text-result-mismatch" : "",
+    inspectMarkdown.likelyFlattened === true && resultMarkdown.newlineCount > 0 ? "inspect-markdown-flattened" : "",
+    listMarkdown.likelyFlattened === true && resultMarkdown.newlineCount > 0 ? "list-markdown-flattened" : ""
   ].filter(Boolean);
   return {
     ok: failures.length === 0,
@@ -3289,7 +3313,10 @@ function finalResponseValidation({ conversationId, projectId, inspectConversatio
       inspectLatestAgentTraceMatches: inspectedLatest ? text(inspectedLatest.traceId) === traceId : false,
       listLatestAgentTraceMatches: listedLatest ? text(listedLatest.traceId) === traceId : false,
       inspectTextMatchesResult: Boolean(inspectText && resultText && inspectText === resultText),
-      listTextMatchesResult: Boolean(listText && resultText && listText === resultText)
+      listTextMatchesResult: Boolean(listText && resultText && listText === resultText),
+      inspectMarkdownNotFlattened: inspectMarkdown.likelyFlattened !== true,
+      listMarkdownNotFlattened: listMarkdown.likelyFlattened !== true,
+      resultMarkdownHasStructure: resultMarkdown.newlineCount > 0 || resultMarkdown.hasTableSeparator === true || resultMarkdown.hasFence === true
     },
     repair: clean({
       inspectSnapshotSource: text(inspectConversation?.snapshot?.source),
@@ -3301,6 +3328,11 @@ function finalResponseValidation({ conversationId, projectId, inspectConversatio
       listText: preview(listText, 200),
       resultText: preview(resultText, 200)
     },
+    markdown: {
+      inspect: inspectMarkdown,
+      list: listMarkdown,
+      result: resultMarkdown
+    },
     failures,
     nextCommands: [
       `hwlab-cli client session inspect ${conversationId} --full`,
diff --git a/web/hwlab-cloud-web/src/stores/workbench.ts b/web/hwlab-cloud-web/src/stores/workbench.ts
index 902f9222..664c814d 100644
--- a/web/hwlab-cloud-web/src/stores/workbench.ts
+++ b/web/hwlab-cloud-web/src/stores/workbench.ts
@@ -285,7 +285,7 @@ export const useWorkbenchStore = defineStore("workbench", () => {
   }
 
   function completeTrace(traceId: string, result: AgentChatResultResponse): void {
-    const text = firstNonEmptyString(result.assistantText, typeof result.reply === "string" ? result.reply : result.reply?.content, result.text, result.summary) ?? "Code Agent 已完成，但没有返回可展示的 final response。";
+    const text = firstNonEmptyString(result.assistantText, finalResponseText(result.finalResponse), typeof result.reply === "string" ? result.reply : result.reply?.content, result.text, result.summary) ?? "Code Agent 已完成，但没有返回可展示的 final response。";
     messages.value = messages.value.map((message) => {
       if (message.traceId !== traceId || message.role !== "agent") return message;
       const runnerTrace = result.runnerTrace ? mergeRunnerTrace(message.runnerTrace, result.runnerTrace) : message.runnerTrace ?? null;
@@ -352,14 +352,36 @@ function optimisticWorkspaceSelection(current: WorkspaceRecord, conversation: Co
 }
 
 function messagesFromConversation(conversation: ConversationRecord): ChatMessage[] {
-  return (conversation.messages ?? []).map((message) => ({ ...message, id: message.id ?? nextProtocolId("msg"), title: message.title ?? (message.role === "user" ? "用户" : "Code Agent"), createdAt: message.createdAt ?? new Date().toISOString(), status: message.status ?? "source" }));
+  return (conversation.messages ?? []).map(normalizeChatMessage);
 }
 
 function messagesFromWorkspace(workspace: WorkspaceRecord | null): ChatMessage[] {
   const selected = workspace?.selectedConversation?.messages;
   const embedded = workspace?.workspace?.messages;
   const source = Array.isArray(selected) ? selected : Array.isArray(embedded) ? embedded : [];
-  return source.map((message) => ({ ...message, id: message.id ?? nextProtocolId("msg"), title: message.title ?? (message.role === "user" ? "用户" : "Code Agent"), createdAt: message.createdAt ?? new Date().toISOString(), status: message.status ?? "source" }));
+  return source.map(normalizeChatMessage);
+}
+
+function normalizeChatMessage(message: ChatMessage): ChatMessage {
+  const text = firstNonEmptyString(message.text, messageText((message as Record<string, unknown>).content), messageText((message as Record<string, unknown>).message), finalResponseText((message as Record<string, unknown>).finalResponse)) ?? "";
+  return { ...message, text, id: message.id ?? nextProtocolId("msg"), title: message.title ?? (message.role === "user" ? "用户" : "Code Agent"), createdAt: message.createdAt ?? new Date().toISOString(), status: message.status ?? "source" };
+}
+
+function finalResponseText(value: unknown): string | null {
+  if (!value || typeof value !== "object") return null;
+  const record = value as Record<string, unknown>;
+  return firstNonEmptyString(messageText(record.text), messageText(record.content), messageText(record.message));
+}
+
+function messageText(value: unknown): string | null {
+  if (typeof value === "string") return value.trim() || null;
+  if (typeof value === "number" || typeof value === "boolean") return String(value);
+  if (Array.isArray(value)) return value.map(messageText).filter((item): item is string => Boolean(item)).join("\n") || null;
+  if (value && typeof value === "object") {
+    const record = value as Record<string, unknown>;
+    return firstNonEmptyString(messageText(record.text), messageText(record.content), messageText(record.message), messageText(record.summary), messageText(record.preview), messageText(record.title));
+  }
+  return null;
 }
 
 export async function liveCall<T>(label: string, call: () => Promise<ApiResult<T>>): Promise<ApiResult<T>> {