diff --git a/src/ast/compiler/analyzer.rs b/src/ast/compiler/analyzer.rs
index 2f2411e..090e6b4 100644
--- a/src/ast/compiler/analyzer.rs
+++ b/src/ast/compiler/analyzer.rs
@@ -369,7 +369,25 @@ impl NodeExt for NodeKind<TypedPhase> {
             NodeKind::Expansion { expanded, .. } => {
                 f(expanded);
             }
-            _ => {}
+            NodeKind::Again { args } => {
+                f(args);
+            }
+            NodeKind::MacroDecl { params, body, .. } => {
+                f(params);
+                f(body);
+            }
+            NodeKind::Template(inner)
+            | NodeKind::Placeholder(inner)
+            | NodeKind::Splice(inner) => {
+                f(inner);
+            }
+            // Leaf nodes — no children to visit.
+            NodeKind::Nop
+            | NodeKind::Constant(_)
+            | NodeKind::Identifier { .. }
+            | NodeKind::FieldAccessor(_)
+            | NodeKind::Error
+            | NodeKind::Extension(_) => {}
         }
     }
 }
diff --git a/src/ast/compiler/lambda_collector.rs b/src/ast/compiler/lambda_collector.rs
index c76f064..80222c3 100644
--- a/src/ast/compiler/lambda_collector.rs
+++ b/src/ast/compiler/lambda_collector.rs
@@ -104,8 +104,28 @@ where
             NodeKind::Expansion { expanded, .. } => {
                 self.visit(expanded);
             }
-
-            _ => {} // Leaf nodes
+            NodeKind::GetField { rec, .. } => {
+                self.visit(rec);
+            }
+            NodeKind::Again { args } => {
+                self.visit(args);
+            }
+            NodeKind::MacroDecl { params, body, .. } => {
+                self.visit(params);
+                self.visit(body);
+            }
+            NodeKind::Template(inner)
+            | NodeKind::Placeholder(inner)
+            | NodeKind::Splice(inner) => {
+                self.visit(inner);
+            }
+            // Leaf nodes — no children to visit.
+            NodeKind::Nop
+            | NodeKind::Constant(_)
+            | NodeKind::Identifier { .. }
+            | NodeKind::FieldAccessor(_)
+            | NodeKind::Error
+            | NodeKind::Extension(_) => {}
         }
     }
 }