diff --git a/src/components/inspector.tsx b/src/components/inspector.tsx
index 6585c27..42caf92 100644
--- a/src/components/inspector.tsx
+++ b/src/components/inspector.tsx
@@ -107,7 +107,7 @@ const NodeInspector: FC = () => {
       form.setFieldValue("children", def.children);
     }
     def.args?.forEach((v) => {
-      if (v.type === "object" || v.type === "object?") {
+      if (v.type === "json" || v.type === "json?") {
         form.setFieldValue(
           `args.${v.name}`,
           JSON.stringify(data.args?.[v.name] ?? v.default, null, 2)
@@ -187,29 +187,42 @@ const NodeInspector: FC = () => {
     data.desc = values.desc && values.desc !== def.desc ? values.desc : undefined;
     data.path = values.path || undefined;
 
-    def.args?.forEach((arg) => {
-      const v = values[`args.${arg.name}`];
-      if (v !== null && v !== undefined && v !== "") {
-        data.args ||= {};
-        if (arg.type === "object" || arg.type === "object?") {
-          data.args[arg.name] = JSON.parse(v);
-        } else {
-          data.args[arg.name] = v;
+    if (def.args?.length) {
+      def.args?.forEach((arg) => {
+        const v = values[`args.${arg.name}`];
+        if (v !== null && v !== undefined && v !== "") {
+          data.args ||= {};
+          if (arg.type === "json" || arg.type === "json?") {
+            data.args[arg.name] = JSON.parse(v);
+          } else {
+            data.args[arg.name] = v;
+          }
         }
-      }
-    });
+      });
+    } else {
+      data.args = {};
+    }
 
-    def.input?.forEach((_, i) => {
-      const v = values[`input.${i}`];
-      data.input ||= [];
-      data.input.push(v ?? "");
-    });
+    if (def.input?.length) {
+      def.input?.forEach((_, i) => {
+        const v = values[`input.${i}`];
+        data.input ||= [];
+        data.input.push(v ?? "");
+      });
+    } else {
+      data.input = [];
+    }
+
+    if (def.output?.length) {
+      def.output?.forEach((_, i) => {
+        const v = values[`output.${i}`];
+        data.output ||= [];
+        data.output.push(v ?? "");
+      });
+    } else {
+      data.output = [];
+    }
 
-    def.output?.forEach((_, i) => {
-      const v = values[`output.${i}`];
-      data.output ||= [];
-      data.output.push(v ?? "");
-    });
     workspace.editing?.dispatch("updateNode", {
       data: data,
     } as EditNode);
@@ -390,7 +403,7 @@ const NodeInspector: FC = () => {
                       { required, message: t("node.fileRequired", { field: v.desc }) },
                       ({ getFieldValue, setFieldValue, isFieldValidating, validateFields }) => ({
                         validator(_, value) {
-                          if (value && (v.type == "object" || v.type == "object?")) {
+                          if (value && (v.type == "json" || v.type == "json?")) {
                             try {
                               JSON.parse(value);
                             } catch (e) {
@@ -439,7 +452,7 @@ const NodeInspector: FC = () => {
                     {type === "string" && (
                       <TextArea autoSize disabled={disabled} onBlur={form.submit} />
                     )}
-                    {type === "object" && (
+                    {type === "json" && (
                       <TextArea autoSize disabled={disabled} onBlur={form.submit} />
                     )}
                     {type === "int" && (
diff --git a/src/misc/b3type.ts b/src/misc/b3type.ts
index f98a75c..3a1f177 100644
--- a/src/misc/b3type.ts
+++ b/src/misc/b3type.ts
@@ -1,6 +1,6 @@
 import { TreeGraphData as G6TreeGraphData } from "@antv/g6";
 
-export type NodeArgType = "boolean" | "string" | "int" | "float" | "object" | "enum" | "code";
+export type NodeArgType = "boolean" | "string" | "int" | "float" | "json" | "enum" | "code";
 export type NodeType = "Action" | "Composite" | "Decorator" | "Condition" | "Other" | "Error";
 
 export interface NodeArgOption {
diff --git a/src/misc/b3util.ts b/src/misc/b3util.ts
index 7b2d673..6211b41 100644
--- a/src/misc/b3util.ts
+++ b/src/misc/b3util.ts
@@ -67,6 +67,10 @@ export const isNodeEqual = (node1: NodeModel, node2: NodeModel) => {
   return false;
 };
 
+const error = (data: NodeModel, msg: string) => {
+  console.error(`check ${data.id}|${data.name}: ${msg}`);
+};
+
 export const checkNodeData = (data: NodeModel | null | undefined) => {
   if (!data) {
     return false;
@@ -77,9 +81,7 @@ export const checkNodeData = (data: NodeModel | null | undefined) => {
     const count = data.children?.length || 0;
     if (conf.children !== count) {
       hasError = true;
-      console.error(
-        `check ${data.id}|${data.name}: expect ${conf.children} children, but got ${count}`
-      );
+      error(data, `expect ${conf.children} children, but got ${count}`);
     }
   }
   if (conf.input) {
@@ -91,11 +93,14 @@ export const checkNodeData = (data: NodeModel | null | undefined) => {
         data.input[i] = "";
       }
       if (conf.input[i].indexOf("?") === -1 && !data.input[i]) {
-        console.error(`check ${data.id}|${data.name}: intput field '${conf.input[i]}' is required`);
+        error(data, `intput field '${conf.input[i]}' is required`);
         hasError = true;
       }
     }
   }
+  if (data.input) {
+    data.input.length = conf.input?.length || 0;
+  }
   if (conf.output) {
     for (let i = 0; i < conf.output.length; i++) {
       if (!data.output) {
@@ -105,69 +110,74 @@ export const checkNodeData = (data: NodeModel | null | undefined) => {
         data.output[i] = "";
       }
       if (conf.output[i].indexOf("?") === -1 && !data.output[i]) {
-        console.error(
-          `check ${data.id}|${data.name}: output field '${conf.output[i]}' is required`
-        );
+        error(data, `output field '${conf.output[i]}' is required`);
         hasError = true;
       }
     }
   }
+  if (data.output) {
+    data.output.length = conf.output?.length || 0;
+  }
   if (conf.args) {
     for (let i = 0; i < conf.args.length; i++) {
-      const arg = conf.args[i];
+      const arg = conf.args[i] as NodeArg;
       const type = arg.type.replace("?", "") as NodeArgType;
       const value = data.args?.[arg.name];
       if (type === "float") {
-        if (!(typeof value === "number" || (value === undefined && arg.type === "float?"))) {
-          console.error(`check ${data.id}|${data.name}: '${arg.name}=${value}' is not a number`);
+        const isNumber = typeof value === "number";
+        const isOptional = value === undefined && arg.type === "float?";
+        if (!(isNumber || isOptional)) {
+          error(data, `'${arg.name}=${value}' is not a number`);
           hasError = true;
         }
       } else if (type === "int") {
-        if (
-          !(
-            (typeof value === "number" && value === Math.floor(value)) ||
-            (value === undefined && arg.type === "int?")
-          )
-        ) {
-          console.error(`check ${data.id}|${data.name}: '${arg.name}=${value}' is not a int`);
+        const isInt = typeof value === "number" && value === Math.floor(value);
+        const isOptional = value === undefined && arg.type === "int?";
+        if (!(isInt || isOptional)) {
+          error(data, `'${arg.name}=${value}' is not a int`);
           hasError = true;
         }
       } else if (type === "string") {
-        if (
-          !(
-            (typeof value === "string" && value) ||
-            ((value === undefined || value === "") && arg.type === "string?")
-          )
-        ) {
-          console.error(`check ${data.id}|${data.name}: '${arg.name}=${value}' is not a string`);
+        const isString = typeof value === "string" && value;
+        const isOptional = (value === undefined || value === "") && arg.type === "string?";
+        if (!(isString || isOptional)) {
+          error(data, `'${arg.name}=${value}' is not a string`);
           hasError = true;
         }
       } else if (type === "enum") {
-        const found = !!arg.options?.find((option) => option.value === value);
-        if (!(found || (value === undefined && arg.type === "enum?"))) {
-          console.error(
-            `check ${data.id}|${data.name}: '${arg.name}=${value}' is not a one of the option values`
-          );
+        const isEnum = !!arg.options?.find((option) => option.value === value);
+        const isOptional = value === undefined && arg.type === "enum?";
+        if (!(isEnum || isOptional)) {
+          error(data, `'${arg.name}=${value}' is not a one of the option values`);
           hasError = true;
         }
       } else if (type == "code") {
-        if (
-          !(
-            (typeof value === "string" && value) ||
-            ((value === undefined || value === "") && arg.type === "code?")
-          )
-        ) {
-          console.error(`check ${data.id}|${data.name}: '${arg.name}=${value}' is not a string`);
+        const isCode = typeof value === "string" && value;
+        const isOptional = (value === undefined || value === "") && arg.type === "code?";
+        if (!(isCode || isOptional)) {
+          error(data, `'${arg.name}=${value}' is not a string`);
           hasError = true;
         }
-      } else if (type == "object") {
-        if (!((value !== undefined && value !== null && value !== "") || arg.type === "object?")) {
-          console.error(
-            `check ${data.id}|${data.name}: '${arg.name}=${value}' is not an invalid object`
-          );
+      } else if (type == "json") {
+        const isJson = value !== undefined && value !== null && value !== "";
+        const isOptional = arg.type === "json?";
+        if (!(isJson || isOptional)) {
+          error(data, `'${arg.name}=${value}' is not an invalid object`);
           hasError = true;
         }
       }
+      if (arg.oneof !== undefined) {
+        const idx = conf.input?.findIndex((v) => v.startsWith(arg.oneof!)) ?? -1;
+        const inputValue = data.input?.[idx] ?? "";
+        const argValue = data.args?.[arg.name] ?? "";
+        if ((inputValue !== "" && argValue !== "") || (inputValue === "" && argValue === "")) {
+          error(
+            data,
+            `only one is allowed for between argument '${arg.name}' and input '${data.input?.[idx]}'`
+          );
+          return false;
+        }
+      }
     }
   }
 
@@ -390,35 +400,50 @@ export const checkTreeData = (data: TreeGraphData) => {
   if (conf.args) {
     for (let i = 0; i < conf.args.length; i++) {
       const arg = conf.args[i] as NodeArg;
-      if (arg.type.indexOf("?") === -1) {
-        const type = arg.type as NodeArgType;
-        const value = data.args?.[arg.name];
-        if (type === "float") {
-          if (typeof value !== "number") {
-            return false;
-          }
-        } else if (type === "int") {
-          if (typeof value !== "number" || value !== Math.floor(value)) {
-            return false;
-          }
-        } else if (type === "string") {
-          if (!value || typeof value !== "string") {
-            return false;
-          }
-        } else if (type === "enum") {
-          if (!arg.options?.find((option) => option.value === value)) {
-            return false;
-          }
-        } else if (type === "code") {
-          if (!value || typeof value !== "string") {
-            return false;
-          }
+      const type = arg.type.replace("?", "") as NodeArgType;
+      const value = data.args?.[arg.name];
+      if (type === "float") {
+        const isNumber = typeof value === "number";
+        const isOptional = value === undefined && arg.type === "float?";
+        if (!(isNumber || isOptional)) {
+          return false;
         }
-      } else if (arg.oneof !== undefined) {
+      } else if (type === "int") {
+        const isInt = typeof value === "number" && value === Math.floor(value);
+        const isOptional = value === undefined && arg.type === "int?";
+        if (!(isInt || isOptional)) {
+          return false;
+        }
+      } else if (type === "string") {
+        const isString = typeof value === "string" && value;
+        const isOptional = (value === undefined || value === "") && arg.type === "string?";
+        if (!(isString || isOptional)) {
+          return false;
+        }
+      } else if (type === "enum") {
+        const isEnum = !!arg.options?.find((option) => option.value === value);
+        const isOptional = value === undefined && arg.type === "enum?";
+        if (!(isEnum || isOptional)) {
+          return false;
+        }
+      } else if (type === "code") {
+        const isCode = typeof value === "string" && value;
+        const isOptional = (value === undefined || value === "") && arg.type === "code?";
+        if (!(isCode || isOptional)) {
+          return false;
+        }
+      } else if (type == "json") {
+        const isJson = value !== undefined && value !== null && value !== "";
+        const isOptional = arg.type === "json?";
+        if (!(isJson || isOptional)) {
+          return false;
+        }
+      }
+      if (arg.oneof !== undefined) {
         const idx = conf.input?.findIndex((v) => v.startsWith(arg.oneof!)) ?? -1;
-        const input = data.input?.[idx] ?? "";
-        const value = data.args?.[arg.name] ?? "";
-        if ((input !== "" && value !== "") || (input === "" && value === "")) {
+        const inputValue = data.input?.[idx] ?? "";
+        const argValue = data.args?.[arg.name] ?? "";
+        if ((inputValue !== "" && argValue !== "") || (inputValue === "" && argValue === "")) {
           return false;
         }
       }
@@ -473,9 +498,9 @@ export const createTreeData = (node: NodeModel, parent?: string) => {
       treeData.parent = parent;
       treeData.id = node.id.toFixed();
       treeData.size = calcTreeDataSize(treeData);
-    } catch (error) {
+    } catch (e) {
       message.error(`解析子树失败：${node.path}`);
-      console.log("parse subtree:", error);
+      console.log("parse subtree:", e);
     }
     parsingStack.pop();
   }
@@ -491,8 +516,8 @@ export const createBuildData = (path: string) => {
     refreshTreeDataId(data);
     treeModel.root = createFileData(data, true);
     return treeModel as TreeModel;
-  } catch (error) {
-    console.log("build error:", path, error);
+  } catch (e) {
+    console.log("build error:", path, e);
   }
   return null;
 };
@@ -509,6 +534,17 @@ export const createFileData = (data: TreeGraphData, includeSubtree?: boolean) =>
     disabled: data.disabled || undefined,
     path: data.path || undefined,
   };
+  const conf = useWorkspace.getState().getNodeDef(data.name);
+  if (!conf.input?.length) {
+    nodeData.input = undefined;
+  }
+  if (!conf.output?.length) {
+    nodeData.output = undefined;
+  }
+  if (!conf.args?.length) {
+    nodeData.args = undefined;
+  }
+
   if (data.children?.length && (includeSubtree || !isSubtreeRoot(data))) {
     nodeData.children = [];
     data.children.forEach((child) => {