Don't show stats for assistant messages with only tool calls

packages/coding-agent/example.txt

@@ -10,8 +10,8 @@ The woodland creatures gazed in wonder as it flashed past them like a streak of
 At the clearing's edge, there also dwelled an exceptionally lazy dog.
 This contented dog much preferred snoozing in the golden sunshine to any kind of adventure.
 
-One day, the fox challenged the dog to a race across the meadow.
-The dog yawned and declined, saying "Why rush when you can rest?"
+One fateful morning, the fox challenged the dog to an epic race across the meadow.
+The dog yawned deeply and declined, saying "Why rush around when you can rest peacefully?"
 
 The fox laughed and zipped away, exploring distant hills and valleys.
 The dog simply rolled over and continued its peaceful slumber.

packages/coding-agent/src/tui/assistant-message.ts

@@ -34,31 +34,40 @@ export class AssistantMessageComponent extends Container {
 		// Clear content container
 		this.contentContainer.clear();
 
+		// Check if there's any actual content (text or thinking)
+		let hasContent = false;
+
 		// Render content in order
 		for (const content of message.content) {
 			if (content.type === "text" && content.text.trim()) {
 				// Assistant text messages with no background - trim the text
 				// Set paddingY=0 to avoid extra spacing before tool executions
 				this.contentContainer.addChild(new Markdown(content.text.trim(), undefined, undefined, undefined, 1, 0));
+				hasContent = true;
 			} else if (content.type === "thinking" && content.thinking.trim()) {
 				// Thinking traces in dark gray italic
 				// Apply styling to entire block so wrapping preserves it
 				const thinkingText = chalk.gray.italic(content.thinking);
 				this.contentContainer.addChild(new Text(thinkingText, 1, 0));
 				this.contentContainer.addChild(new Spacer(1));
+				hasContent = true;
 			}
 		}
 
 		// Check if aborted - show after partial content
 		if (message.stopReason === "aborted") {
 			this.contentContainer.addChild(new Text(chalk.red("Aborted")));
+			hasContent = true;
 		} else if (message.stopReason === "error") {
 			const errorMsg = message.errorMessage || "Unknown error";
 			this.contentContainer.addChild(new Text(chalk.red(`Error: ${errorMsg}`)));
+			hasContent = true;
 		}
 
-		// Update stats
-		this.updateStats(message.usage);
+		// Only update stats if there's actual content (not just tool calls)
+		if (hasContent) {
+			this.updateStats(message.usage);
+		}
 	}
 
 	updateStats(usage: any): void {