diff --git a/src/agent/context.rs b/src/agent/context.rs
index 47e6c7a..68ebc63 100644
--- a/src/agent/context.rs
+++ b/src/agent/context.rs
@@ -21,7 +21,7 @@
 // Self-wrapping leaves (not inside a message branch):
 //   dmn             = IM_START "dmn\n" TEXT IM_END "\n" ;
 //   memory          = IM_START "memory\n" TEXT IM_END "\n" ;
-//   tool_result     = IM_START "tool\n" TEXT IM_END "\n" ;
+//   tool_result     = IM_START "user\n<tool_response>\n" TEXT "\n</tool_response>" IM_END "\n" ;
 //
 // Non-visible leaves (not in prompt):
 //   log             = TEXT ;