diff --git a/components/sub-agents-panel.tsx b/components/sub-agents-panel.tsx
index abafcfe..ead8bb9 100644
--- a/components/sub-agents-panel.tsx
+++ b/components/sub-agents-panel.tsx
@@ -26,7 +26,7 @@ export function SubAgentsPanel({ jobs }: { jobs: JobRecord[] }) {
 	return (
 		<aside
 			data-testid="sub-agents-panel"
-			className="flex w-64 shrink-0 flex-col border-b border-border/60 bg-card/30 px-3 py-2.5"
+			className="flex w-full shrink-0 flex-col border-b border-l border-border/60 bg-card/30 px-3 py-2.5"
 		>
 			<div className="flex items-center gap-2 text-[11px] font-medium uppercase tracking-wide text-muted-foreground">
 				<BotIcon className="size-3.5" />