From dcff27fe3fca80b610de5c648eb55c68e6154c57 Mon Sep 17 00:00:00 2001
From: guill <jacob.e.segal@gmail.com>
Date: Tue, 27 Jan 2026 13:03:29 -0800
Subject: [PATCH] Add support for dev-only nodes. (#12106)

When a node is declared as dev-only, it doesn't show in the default UI
unless the dev mode is enabled in the settings. The intention is to
allow nodes related to unit testing to be included in ComfyUI
distributions without confusing the average user.
---
 comfy/comfy_types/node_typing.py |  2 ++
 comfy_api/latest/_io.py          | 16 ++++++++++++++++
 server.py                        |  2 ++
 3 files changed, 20 insertions(+)

diff --git a/comfy/comfy_types/node_typing.py b/comfy/comfy_types/node_typing.py
index 071b98332..0194b7d70 100644
--- a/comfy/comfy_types/node_typing.py
+++ b/comfy/comfy_types/node_typing.py
@@ -236,6 +236,8 @@ class ComfyNodeABC(ABC):
     """Flags a node as experimental, informing users that it may change or not work as expected."""
     DEPRECATED: bool
     """Flags a node as deprecated, indicating to users that they should find alternatives to this node."""
+    DEV_ONLY: bool
+    """Flags a node as dev-only, hiding it from search/menus unless dev mode is enabled."""
     API_NODE: Optional[bool]
     """Flags a node as an API node. See: https://docs.comfy.org/tutorials/api-nodes/overview."""
 
diff --git a/comfy_api/latest/_io.py b/comfy_api/latest/_io.py
index 03c77a531..be759952e 100644
--- a/comfy_api/latest/_io.py
+++ b/comfy_api/latest/_io.py
@@ -1247,6 +1247,7 @@ class NodeInfoV1:
     output_node: bool=None
     deprecated: bool=None
     experimental: bool=None
+    dev_only: bool=None
     api_node: bool=None
     price_badge: dict | None = None
     search_aliases: list[str]=None
@@ -1264,6 +1265,7 @@ class NodeInfoV3:
     output_node: bool=None
     deprecated: bool=None
     experimental: bool=None
+    dev_only: bool=None
     api_node: bool=None
     price_badge: dict | None = None
 
@@ -1375,6 +1377,8 @@ class Schema:
     """Flags a node as deprecated, indicating to users that they should find alternatives to this node."""
     is_experimental: bool=False
     """Flags a node as experimental, informing users that it may change or not work as expected."""
+    is_dev_only: bool=False
+    """Flags a node as dev-only, hiding it from search/menus unless dev mode is enabled."""
     is_api_node: bool=False
     """Flags a node as an API node. See: https://docs.comfy.org/tutorials/api-nodes/overview."""
     price_badge: PriceBadge | None = None
@@ -1485,6 +1489,7 @@ class Schema:
             output_node=self.is_output_node,
             deprecated=self.is_deprecated,
             experimental=self.is_experimental,
+            dev_only=self.is_dev_only,
             api_node=self.is_api_node,
             python_module=getattr(cls, "RELATIVE_PYTHON_MODULE", "nodes"),
             price_badge=self.price_badge.as_dict(self.inputs) if self.price_badge is not None else None,
@@ -1519,6 +1524,7 @@ class Schema:
             output_node=self.is_output_node,
             deprecated=self.is_deprecated,
             experimental=self.is_experimental,
+            dev_only=self.is_dev_only,
             api_node=self.is_api_node,
             python_module=getattr(cls, "RELATIVE_PYTHON_MODULE", "nodes"),
             price_badge=self.price_badge.as_dict(self.inputs) if self.price_badge is not None else None,
@@ -1791,6 +1797,14 @@ class _ComfyNodeBaseInternal(_ComfyNodeInternal):
             cls.GET_SCHEMA()
         return cls._DEPRECATED
 
+    _DEV_ONLY = None
+    @final
+    @classproperty
+    def DEV_ONLY(cls):  # noqa
+        if cls._DEV_ONLY is None:
+            cls.GET_SCHEMA()
+        return cls._DEV_ONLY
+
     _API_NODE = None
     @final
     @classproperty
@@ -1893,6 +1907,8 @@ class _ComfyNodeBaseInternal(_ComfyNodeInternal):
             cls._EXPERIMENTAL = schema.is_experimental
         if cls._DEPRECATED is None:
             cls._DEPRECATED = schema.is_deprecated
+        if cls._DEV_ONLY is None:
+            cls._DEV_ONLY = schema.is_dev_only
         if cls._API_NODE is None:
             cls._API_NODE = schema.is_api_node
         if cls._OUTPUT_NODE is None:
diff --git a/server.py b/server.py
index 1888745b7..2aee5cc06 100644
--- a/server.py
+++ b/server.py
@@ -679,6 +679,8 @@ class PromptServer():
                 info['deprecated'] = True
             if getattr(obj_class, "EXPERIMENTAL", False):
                 info['experimental'] = True
+            if getattr(obj_class, "DEV_ONLY", False):
+                info['dev_only'] = True
 
             if hasattr(obj_class, 'API_NODE'):
                 info['api_node'] = obj_class.API_NODE