diff --git a/packages/ui/src/Panel.ts b/packages/ui/src/Panel.ts
index 96353f1..efd4e9a 100644
--- a/packages/ui/src/Panel.ts
+++ b/packages/ui/src/Panel.ts
@@ -163,20 +163,6 @@ export class Panel {
 	 * Convert semantic update to step data with i18n
 	 */
 	#toStepData(data: PanelUpdate): Omit<Step, 'id' | 'stepNumber' | 'timestamp'> {
-		// #region agent log
-		fetch('http://127.0.0.1:7243/ingest/bc2a9e35-f282-4f4f-a970-887c381f4d18', {
-			method: 'POST',
-			headers: { 'Content-Type': 'application/json' },
-			body: JSON.stringify({
-				location: 'Panel.ts:#toStepData',
-				message: 'Converting update to step',
-				data: { type: data.type, rawData: JSON.stringify(data).substring(0, 200) },
-				timestamp: Date.now(),
-				sessionId: 'debug-session',
-				hypothesisId: 'D',
-			}),
-		}).catch(() => {})
-		// #endregion
 		switch (data.type) {
 			case 'thinking':
 				return { type: 'thinking', displayText: data.text ?? this.#i18n.t('ui.panel.thinking') }
@@ -604,29 +590,7 @@ export class Panel {
 
 	#updateHistory(): void {
 		const steps = this.#state.getAllSteps()
-
-		const html = steps.map((step) => this.#createHistoryItem(step)).join('')
-		// #region agent log
-		fetch('http://127.0.0.1:7243/ingest/bc2a9e35-f282-4f4f-a970-887c381f4d18', {
-			method: 'POST',
-			headers: { 'Content-Type': 'application/json' },
-			body: JSON.stringify({
-				location: 'Panel.ts:#updateHistory',
-				message: 'Setting innerHTML',
-				data: {
-					htmlLength: html.length,
-					stepsCount: steps.length,
-					htmlPreview: html.substring(0, 300),
-				},
-				timestamp: Date.now(),
-				sessionId: 'debug-session',
-				hypothesisId: 'C',
-			}),
-		}).catch(() => {})
-		// #endregion
-		this.#historySection.innerHTML = html
-
-		// Scroll to bottom to show latest records
+		this.#historySection.innerHTML = steps.map((step) => this.#createHistoryItem(step)).join('')
 		this.#scrollToBottom()
 	}
 
@@ -638,24 +602,6 @@ export class Panel {
 	}
 
 	#createHistoryItem(step: Step): string {
-		// #region agent log
-		fetch('http://127.0.0.1:7243/ingest/bc2a9e35-f282-4f4f-a970-887c381f4d18', {
-			method: 'POST',
-			headers: { 'Content-Type': 'application/json' },
-			body: JSON.stringify({
-				location: 'Panel.ts:#createHistoryItem',
-				message: 'Creating history item',
-				data: {
-					displayText: step.displayText,
-					type: step.type,
-					hasAngleBrackets: /[<>]/.test(step.displayText),
-				},
-				timestamp: Date.now(),
-				sessionId: 'debug-session',
-				hypothesisId: 'A',
-			}),
-		}).catch(() => {})
-		// #endregion
 		const time = step.timestamp.toLocaleTimeString('zh-CN', {
 			hour12: false,
 			hour: '2-digit',
@@ -707,7 +653,7 @@ export class Panel {
 			duration: durationText || '', // Explicitly pass empty string to replace template
 		})
 
-		const htmlOutput = `
+		return `
 			<div class="${styles.historyItem} ${typeClass}">
 				<div class="${styles.historyContent}">
 					<span class="${styles.statusIcon}">${statusIcon}</span>
@@ -718,23 +664,5 @@ export class Panel {
 				</div>
 			</div>
 		`
-		// #region agent log
-		fetch('http://127.0.0.1:7243/ingest/bc2a9e35-f282-4f4f-a970-887c381f4d18', {
-			method: 'POST',
-			headers: { 'Content-Type': 'application/json' },
-			body: JSON.stringify({
-				location: 'Panel.ts:#createHistoryItem:return',
-				message: 'Generated HTML output',
-				data: {
-					htmlOutputLength: htmlOutput.length,
-					htmlOutputPreview: htmlOutput.substring(0, 200),
-				},
-				timestamp: Date.now(),
-				sessionId: 'debug-session',
-				hypothesisId: 'A',
-			}),
-		}).catch(() => {})
-		// #endregion
-		return htmlOutput
 	}
 }