diff --git a/frontend/src/pages/AdminPipeline.tsx b/frontend/src/pages/AdminPipeline.tsx
index c503b30..fed5cf0 100644
--- a/frontend/src/pages/AdminPipeline.tsx
+++ b/frontend/src/pages/AdminPipeline.tsx
@@ -393,7 +393,7 @@ function DebugModeToggle({
   if (debugMode === null) return null;
 
   return (
-    <div className="debug-toggle">
+    <div className="debug-toggle" title="When enabled, pipeline runs capture full LLM prompts and responses for inspection in the event log">
       <span className="debug-toggle__label">
         Debug {debugMode ? "On" : "Off"}
       </span>