diff --git a/lib/clean/project.sh b/lib/clean/project.sh
index a86dae0..f89b288 100644
--- a/lib/clean/project.sh
+++ b/lib/clean/project.sh
@@ -210,9 +210,9 @@ is_recently_modified() {
         return 1
     fi
 
-    # Check modification time (macOS compatible)
+    # Get modification time using base.sh helper (handles GNU vs BSD stat)
     local mod_time
-    mod_time=$(stat -f "%m" "$path" 2> /dev/null || stat -c "%Y" "$path" 2> /dev/null || echo "0")
+    mod_time=$(get_file_mtime "$path")
     local current_time=$(date +%s)
     local age_seconds=$((current_time - mod_time))
     local age_in_days=$((age_seconds / 86400))
diff --git a/lib/clean/system.sh b/lib/clean/system.sh
index 4988510..a3e4efd 100644
--- a/lib/clean/system.sh
+++ b/lib/clean/system.sh
@@ -40,7 +40,7 @@ clean_deep_system() {
 
                 # Skip system-protected files (restricted flag)
                 local item_flags
-                item_flags=$(command stat -f%Sf "$item" 2> /dev/null || echo "")
+                item_flags=$($STAT_BSD -f%Sf "$item" 2> /dev/null || echo "")
                 if [[ "$item_flags" == *"restricted"* ]]; then
                     continue
                 fi
diff --git a/scripts/build-analyze.sh b/scripts/build-analyze.sh
index 6dd5d40..41b75d6 100755
--- a/scripts/build-analyze.sh
+++ b/scripts/build-analyze.sh
@@ -44,7 +44,7 @@ echo ""
 echo "✓ Build complete!"
 echo ""
 file bin/analyze-go
-size_bytes=$(stat -f%z bin/analyze-go 2> /dev/null || echo 0)
+size_bytes=$(/usr/bin/stat -f%z bin/analyze-go 2> /dev/null || echo 0)
 size_mb=$((size_bytes / 1024 / 1024))
 printf "Size: %d MB (%d bytes)\n" "$size_mb" "$size_bytes"
 echo ""
diff --git a/scripts/build-status.sh b/scripts/build-status.sh
index 175df19..2499e71 100755
--- a/scripts/build-status.sh
+++ b/scripts/build-status.sh
@@ -37,7 +37,7 @@ echo ""
 echo "✓ Build complete!"
 echo ""
 file bin/status-go
-size_bytes=$(stat -f%z bin/status-go 2> /dev/null || echo 0)
+size_bytes=$(/usr/bin/stat -f%z bin/status-go 2> /dev/null || echo 0)
 size_mb=$((size_bytes / 1024 / 1024))
 printf "Size: %d MB (%d bytes)\n" "$size_mb" "$size_bytes"
 echo ""