diff --git a/__init__.py b/__init__.py
new file mode 100644
index 0000000..5cf7819
--- /dev/null
+++ b/__init__.py
@@ -0,0 +1,11 @@
+from .nodes import DynamicRAMCacheControl
+
+NODE_CLASS_MAPPINGS = {
+    "DynamicRAMCacheControl": DynamicRAMCacheControl
+}
+
+NODE_DISPLAY_NAME_MAPPINGS = {
+    "DynamicRAMCacheControl": "🔥 Dynamic RAM Cache Control"
+}
+
+__all__ = ["NODE_CLASS_MAPPINGS", "NODE_DISPLAY_NAME_MAPPINGS"]
\ No newline at end of file
diff --git a/nodes.py b/nodes.py
new file mode 100644
index 0000000..29a1a49
--- /dev/null
+++ b/nodes.py
@@ -0,0 +1,187 @@
+import gc
+import logging
+import time
+
+caching = None
+execution = None
+
+# Import execution module
+try:
+    import execution
+except ImportError:
+    logging.error("[DynamicRAMCache] Failed to import execution module")
+    logging.error("[DynamicRAMCache] This may be due to ComfyUI version update to 2025.10.31. Please check if module structure has changed.")
+    
+# Import caching module
+try:
+    from comfy_execution import caching
+    # Check if RAMPressureCache class exists in the imported caching module
+    if caching is not None and not hasattr(caching, 'RAMPressureCache'):
+        logging.error("[DynamicRAMCache] RAMPressureCache class not found in caching module")
+        logging.error("[DynamicRAMCache] This class may only exist in ComfyUI versions after 2025.10.31")
+except ImportError:
+    logging.error("[DynamicRAMCache] Failed to import caching module")
+    logging.error("[DynamicRAMCache] This may be due to ComfyUI version update to 2025.10.31. Please check if module structure has changed.")
+
+# Ensure both modules are successfully imported
+if execution is None or caching is None:
+    logging.error("[DynamicRAMCache] Critical module import failed, plugin may not work correctly")
+    logging.error("[DynamicRAMCache] Plugin compatibility with ComfyUI 2025.10.31 needs to be verified. Module structure may have changed.")
+
+class AlwaysEqualProxy(str):
+    def __eq__(self, _):
+        return True
+
+    def __ne__(self, _):
+        return False
+
+any_type = AlwaysEqualProxy("*")
+
+class DynamicRAMCacheControl:
+    def __init__(self):
+        pass
+
+    @classmethod
+    def INPUT_TYPES(s):
+        return {
+            "required": {
+                "mode": (["CLASSIC (No Eviction)", "RAM_PRESSURE (Auto Purge)"], {"default": "RAM_PRESSURE (Auto Purge)"}),
+                "cleanup_threshold": ("FLOAT", {"default": 2.0, "min": 0.1, "max": 256.0, "step": 0.1, "tooltip": "Minimum free RAM to maintain (GB)"}),
+            },
+            "optional": {
+                "any_input": (any_type, {}),
+            }
+        }
+
+    RETURN_TYPES = (any_type,)
+    RETURN_NAMES = ("output_passthrough",)
+    FUNCTION = "manage_cache"
+    CATEGORY = "utils/dynamic_ramcache"
+
+    def manage_cache(self, mode, cleanup_threshold, any_input=None):
+        if caching is not None and execution is not None:
+            self._execute_cache_logic(mode, cleanup_threshold)
+        else:
+            logging.warning("[DynamicRAMCache] Plugin disabled: Missing internal modules.")
+
+        if any_input is not None:
+            return (any_input,)
+        else:
+            try:
+                from comfy_execution.graph import ExecutionBlocker
+                return (ExecutionBlocker(None),)
+            except ImportError:
+                return (None,)
+
+    def _execute_cache_logic(self, mode, cleanup_threshold):
+
+        target_mode_ram = "RAM_PRESSURE" in mode
+
+        executor = None
+        for obj in gc.get_objects():
+            if obj.__class__.__name__ == 'PromptExecutor':
+                executor = obj
+                break
+        
+        if executor is None:
+            logging.warning("[DynamicRAMCache] PromptExecutor not found.")
+            return
+
+        if not hasattr(executor, 'cache_args'):
+            executor.cache_args = {}
+        
+        old_ram_arg = executor.cache_args.get('ram', 0)
+        executor.cache_args['ram'] = cleanup_threshold
+
+        if not hasattr(executor, 'caches'):
+            logging.warning("[DynamicRAMCache] PromptExecutor has no 'caches' attribute.")
+            return
+        
+        cache_set = executor.caches
+
+        if not hasattr(cache_set, 'outputs'):
+            logging.warning("[DynamicRAMCache] CacheSet has no 'outputs' attribute.")
+            return
+
+        current_cache = cache_set.outputs
+
+        RAMPressureCacheClass = getattr(caching, 'RAMPressureCache', None)
+        HierarchicalCacheClass = getattr(caching, 'HierarchicalCache', None)
+
+        if not RAMPressureCacheClass:
+            logging.error("[DynamicRAMCache] RAMPressureCache class not available in caching module")
+            logging.error("[DynamicRAMCache] This class is required for RAM_PRESSURE mode and may only exist in ComfyUI versions after 2025.10.31")
+            logging.error("[DynamicRAMCache] Please check your ComfyUI version or consider switching to CLASSIC mode")
+            return
+        
+        if not HierarchicalCacheClass:
+            logging.error("[DynamicRAMCache] HierarchicalCache class not available in caching module")
+            return
+
+        is_currently_ram = isinstance(current_cache, RAMPressureCacheClass)
+
+        if target_mode_ram and not is_currently_ram:
+            self._switch_to_ram_pressure(cache_set, current_cache, caching)
+            logging.info(f"[DynamicRAMCache] Switched mode: CLASSIC -> RAM_PRESSURE (Headroom: {cleanup_threshold}GB)")
+        
+        elif not target_mode_ram and is_currently_ram:
+            self._switch_to_classic(cache_set, current_cache, caching)
+            logging.info(f"[DynamicRAMCache] Switched mode: RAM_PRESSURE -> CLASSIC")
+        
+        elif target_mode_ram and is_currently_ram:
+            if old_ram_arg != cleanup_threshold:
+                logging.info(f"[DynamicRAMCache] Updated RAM Headroom: {old_ram_arg}GB -> {cleanup_threshold}GB")
+
+        if target_mode_ram and hasattr(cache_set.outputs, 'poll'):
+            try:
+                cache_set.outputs.poll(cleanup_threshold)
+            except Exception:
+                pass
+
+    def _update_cache_set(self, cache_set, new_cache):
+
+        cache_set.outputs = new_cache
+        
+        if hasattr(cache_set, 'all') and isinstance(cache_set.all, list):
+            for i, item in enumerate(cache_set.all):
+                if i == 0: 
+                    cache_set.all[i] = new_cache
+
+    def _switch_to_ram_pressure(self, cache_set, old_cache, caching_mod):
+        key_class = getattr(old_cache, 'key_class', None)
+        if not key_class:
+            key_class = getattr(caching_mod, 'CacheKeySetInputSignature', None)
+
+        new_cache = caching_mod.RAMPressureCache(key_class)
+        self._migrate_cache_data(old_cache, new_cache)
+
+        new_cache.timestamps = {}
+        new_cache.used_generation = {}
+        new_cache.children = {}
+        new_cache.generation = 1
+        new_cache.min_generation = 0
+
+        now = time.time()
+        for key in new_cache.cache:
+            new_cache.timestamps[key] = now
+            new_cache.used_generation[key] = 0 
+
+        self._update_cache_set(cache_set, new_cache)
+
+    def _switch_to_classic(self, cache_set, old_cache, caching_mod):
+        key_class = getattr(old_cache, 'key_class', None)
+        if not key_class:
+            key_class = getattr(caching_mod, 'CacheKeySetInputSignature', None)
+
+        new_cache = caching_mod.HierarchicalCache(key_class)
+        self._migrate_cache_data(old_cache, new_cache)
+
+        self._update_cache_set(cache_set, new_cache)
+
+    def _migrate_cache_data(self, old_cache, new_cache):
+        """迁移缓存核心数据"""
+        new_cache.cache = old_cache.cache
+        new_cache.subcaches = old_cache.subcaches
+        new_cache.dynprompt = getattr(old_cache, 'dynprompt', None)
+        new_cache.cache_key_set = getattr(old_cache, 'cache_key_set', None)
+        new_cache.initialized = getattr(old_cache, 'initialized', False)
\ No newline at end of file