diff --git a/lib/components/fabro-workflow/src/transforms/variable_expansion.rs b/lib/components/fabro-workflow/src/transforms/variable_expansion.rs
index 311c47189..e739c21a4 100644
--- a/lib/components/fabro-workflow/src/transforms/variable_expansion.rs
+++ b/lib/components/fabro-workflow/src/transforms/variable_expansion.rs
@@ -19,11 +19,10 @@ use crate::static_reference::{
 
 /// How the template-expansion pass should treat undefined input variables.
 ///
-/// Neither validate nor run-create should fail just because the user has not
-/// bound `{{ inputs.* }}` yet, so both render structurally. Run-create then
-/// promotes the resulting warnings to errors itself, which keeps its hard-fail
-/// behavior while still reporting every undefined variable in one pass rather
-/// than aborting on the first.
+/// Both validate and run-create render structurally so they can report every
+/// unbound `{{ inputs.* }}` variable in one pass rather than aborting on the
+/// first. Run-create then promotes the resulting warnings to errors, which
+/// keeps its hard-fail behavior.
 #[derive(Clone, Copy, Debug)]
 pub enum RenderMode {
     /// Undefined inputs abort the pass with a hard error. No production caller