diff --git a/frontend/app/app/assistant.tsx b/frontend/app/app/assistant.tsx
index e71e5f4..0f70b42 100644
--- a/frontend/app/app/assistant.tsx
+++ b/frontend/app/app/assistant.tsx
@@ -4,7 +4,6 @@ import type { ExportedMessageRepository } from "@assistant-ui/core";
 import {
 	AssistantRuntimeProvider,
 	useAui,
-	useAuiState,
 } from "@assistant-ui/react";
 import {
 	AssistantChatTransport,
@@ -195,28 +194,6 @@ function getDraftKey(activeSessionId: string | null): string {
 	return activeSessionId;
 }
 
-// 用户在对话里表达「我要开始/进行模型训练（这一轮迭代）」时命中的关键短语。
-// 要求动词或专属触发词必须存在；避免 "什么是模型训练" 之类无意义匹配。
-const APPLY_INTENT_PATTERNS: RegExp[] = [
-	// 触发短语：开始，xxx / 开始, xxx
-	/(?:^|\s|[，,。.!?])开始\s*[，,]\s*\S+/,
-	// 单纯训练动作：进行/开始/启动/开启/执行/发起/做 + (模型) + 训练
-	/(?:进行|开始|启动|开启|执行|发起|做)\s*(?:模型)?\s*训练/i,
-	// 训练 + 目标集合
-	/训练[\s\S]{0,60}?(?:目标集合|需求集合|specific[\s_-]?test|集合)/i,
-	// 「(模型)训练，目标是 X」「训练，基模 X」「训练 ... csv」之类自然表达
-	/(?:^|[\s，,。.!?])(?:模型)?训练[\s，,][\s\S]{0,80}?(?:目标|基模|specific[\s_-]?test|\.csv)/i,
-	// 跟着 program.md 的旧表达保留
-	/(?:应用|加载|载入|启用|装载|使用|跑|按照?|根据|用)\s*\S*program\.?md/i,
-	/program\.?md[\s\S]{0,120}?(?:训练|应用|启用|跑起来|跑一下)/i,
-	/apply\s+program(?:\.md)?/i,
-	/load\s+program(?:\.md)?/i,
-	/(?:start|begin|run)\s+(?:the\s+)?training/i,
-];
-
-function detectApplyIntent(text: string): boolean {
-	return APPLY_INTENT_PATTERNS.some((re) => re.test(text));
-}
 
 function AssistantWorkspace() {
 	const aui = useAui();
@@ -227,8 +204,6 @@ function AssistantWorkspace() {
 	const { applied, setApplied } = useAppliedTraining(activeSessionId);
 	const { close: closeActivityPanel } = useActivityPanel();
 	const showPipeline = skill.enabled && applied;
-	const messages = useAuiState((s) => s.thread.messages);
-	const lastProcessedUserMsgId = useRef<string | null>(null);
 	const pipelineContainerRef = useRef<HTMLDivElement>(null);
 	const lastPipelineYRef = useRef<number | null>(null);
 	const [exitButtonVisible, setExitButtonVisible] = useState(false);
@@ -354,110 +329,16 @@ function AssistantWorkspace() {
 		closeActivityPanel();
 	}, [showPipeline, closeActivityPanel]);
 
-	// Skill 关掉时撤销 applied，避免重新启用就立刻弹开。
+	// Skill 开关联动 applied：开 → 立刻展开面板；关 → 收起。
+	// 面板只在用户显式点击 skill 按钮时展开，不再从消息/pipeline 自动推断。
 	useEffect(() => {
-		if (!skill.enabled && applied) {
+		if (skill.enabled && !applied) {
+			setApplied(true);
+		} else if (!skill.enabled && applied) {
 			setApplied(false);
 		}
 	}, [skill.enabled, applied, setApplied]);
 
-	// 自动应用：skill 启用 + 当前 session 后端的 pipeline 已经有进展（任何
-	// 卡 running 或 complete）→ applied=true。这样关 tab 重开 / 刷新 / 切回
-	// 已在跑的会话都能自动恢复 monitor 面板，不依赖触发词。
-	// 30 秒轮询一次，覆盖「页面打开时 pipeline 还没起、之后才被外部脚本启动」
-	// 这类情形——一次性 fetch 容易错过。
-	useEffect(() => {
-		if (!skill.enabled) return;
-		if (applied) return;
-		if (!activeSessionId) return;
-		let cancelled = false;
-		const pipelineUrl = `/api/claw/training/pipeline?session_id=${encodeURIComponent(activeSessionId)}`;
-		const runUrl = `/api/claw/runs/latest?session_id=${encodeURIComponent(activeSessionId)}`;
-		const tick = async () => {
-			try {
-				const res = await fetch(pipelineUrl, { cache: "no-store" });
-				if (res.ok) {
-					const payload = await res.json();
-					if (cancelled) return;
-					if (payload) {
-						const items = Array.isArray(payload.items) ? payload.items : [];
-						const hasItemProgress = items.some(
-							(it: {
-								type?: string;
-								status?: string;
-								cards?: Array<{ status?: string }>;
-							}) => {
-								if (it.type === "gate") {
-									return it.status === "running" || it.status === "complete";
-								}
-								return (
-									Array.isArray(it.cards) &&
-									it.cards.some(
-										(c) =>
-											c.status === "running" || c.status === "complete",
-									)
-								);
-							},
-						);
-						// items[] 走 phase-complete-only 过滤；R0 只有一张卡在跑时
-						// items 是空的，进展信号在 in_flight 字段里——也算进展。
-						const hasInFlight = Boolean(payload.in_flight);
-						if (hasItemProgress || hasInFlight) {
-							setApplied(true);
-							return;
-						}
-					}
-				}
-			} catch {
-				/* ignore, fall through to runs/latest fallback */
-			}
-			// Pipeline 还没写出 items/in_flight（agent 处于 prep 阶段，比如在 watcher
-			// 里 sleep 等远端文件）时，pipeline 端点会返回 state=pending、items=[]，
-			// 但后端 run 其实已经在跑。直接看 run 状态兜底，免得用户起了训练但
-			// monitor 面板等到第一个 phase 才弹。
-			try {
-				const res = await fetch(runUrl, { cache: "no-store" });
-				if (!res.ok) return;
-				const payload = await res.json();
-				if (cancelled || !payload) return;
-				if (payload.status === "running" || payload.status === "queued") {
-					setApplied(true);
-				}
-			} catch {
-				/* ignore */
-			}
-		};
-		tick();
-		const id = window.setInterval(tick, 30000);
-		return () => {
-			cancelled = true;
-			window.clearInterval(id);
-		};
-	}, [skill.enabled, applied, activeSessionId, setApplied]);
-
-	// 监听用户消息：skill 启用 + 检测到训练触发短语 → applied = true。
-	useEffect(() => {
-		if (!skill.enabled) return;
-		if (applied) return;
-		if (!Array.isArray(messages) || messages.length === 0) return;
-		// 找最新一条 user 消息
-		let latestUser: (typeof messages)[number] | null = null;
-		for (let i = messages.length - 1; i >= 0; i -= 1) {
-			const m = messages[i];
-			if (m.role === "user") {
-				latestUser = m;
-				break;
-			}
-		}
-		if (!latestUser) return;
-		if (lastProcessedUserMsgId.current === latestUser.id) return;
-		lastProcessedUserMsgId.current = latestUser.id;
-		const text = collectUserMessageText(latestUser);
-		if (text && detectApplyIntent(text)) {
-			setApplied(true);
-		}
-	}, [messages, skill.enabled, applied, setApplied]);
-
 	// 注意：用同一棵树 + 条件渲染，保证 <Thread /> 和 <ActivityPanel /> 在
 	// pipeline 切换前后都保持挂载，否则它们会 remount，
 	// useJupyterWorkspaceStatus 的内部 state 会被清空，UI 上 Jupyter 工作区
@@ -503,21 +384,6 @@ function AssistantWorkspace() {
 	);
 }
 
-function collectUserMessageText(message: { content?: unknown }): string {
-	const content = message.content;
-	if (typeof content === "string") return content;
-	if (!Array.isArray(content)) return "";
-	const parts: string[] = [];
-	for (const part of content) {
-		if (typeof part === "string") {
-			parts.push(part);
-		} else if (part && typeof part === "object") {
-			const text = (part as { text?: unknown }).text;
-			if (typeof text === "string") parts.push(text);
-		}
-	}
-	return parts.join("\n");
-}
 
 function ActivityDrawerTrigger() {
 	const { open, openActivity } = useActivityPanel();