diff --git a/src/dify_plugin/entities/tool.py b/src/dify_plugin/entities/tool.py
index 5fda0019..01403a74 100644
--- a/src/dify_plugin/entities/tool.py
+++ b/src/dify_plugin/entities/tool.py
@@ -14,6 +14,7 @@
 from dify_plugin.entities import I18nObject, ParameterOption
 from dify_plugin.entities.invoke_message import InvokeMessage
 from dify_plugin.entities.model.message import PromptMessageTool
+from dify_plugin.entities.model.provider import FormShowOnObject
 from dify_plugin.entities.oauth import OAuthSchema
 from dify_plugin.entities.provider_config import (
     CommonParameterType,
@@ -122,6 +123,7 @@ class ToolParameterForm(Enum):
     options: list[ToolParameterOption] | None = None
     # MCP object and array type parameters use this field to store the schema
     input_schema: Mapping[str, Any] | None = None
+    show_on: list[FormShowOnObject] = Field(default_factory=list)
 
 
 @docs(