Add auto-increment on filename conflict with overwrite toggle

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

nodes.py

@@ -11,6 +11,9 @@ class SaveLatentAbsolute:
             "required": {
                 "samples": ("LATENT",),
                 "path": ("STRING", {"default": "/path/to/latent.latent"}),
+            },
+            "optional": {
+                "overwrite": ("BOOLEAN", {"default": False}),
             }
         }
 
@@ -19,12 +22,19 @@ class SaveLatentAbsolute:
     CATEGORY = "latent"
     OUTPUT_NODE = True
 
-    def save(self, samples, path):
+    def save(self, samples, path, overwrite=False):
         path = os.path.expanduser(path)
         if not path.endswith(".latent"):
             path += ".latent"
         os.makedirs(os.path.dirname(path), exist_ok=True)
 
+        if not overwrite and os.path.exists(path):
+            base, ext = os.path.splitext(path)
+            counter = 1
+            while os.path.exists(f"{base}_{counter}{ext}"):
+                counter += 1
+            path = f"{base}_{counter}{ext}"
+
         tensors = {}
         non_tensors = {}
         devices = {}