diff --git a/src/components/explorer.tsx b/src/components/explorer.tsx
index d71049b..cca8d5a 100644
--- a/src/components/explorer.tsx
+++ b/src/components/explorer.tsx
@@ -10,8 +10,9 @@ import { FaExclamationTriangle, FaSwatchbook } from "react-icons/fa";
 import { FiCommand, FiDelete } from "react-icons/fi";
 import { IoMdReturnLeft } from "react-icons/io";
 import { PiTreeStructureFill } from "react-icons/pi";
+import { NodeDef } from "../behavior3/src/behavior3";
 import { FileTreeType, useWorkspace } from "../contexts/workspace-context";
-import { NodeDef, getNodeType } from "../misc/b3type";
+import { getNodeType } from "../misc/b3type";
 import * as b3util from "../misc/b3util";
 import { modal } from "../misc/hooks";
 import i18n from "../misc/i18n";
diff --git a/src/components/register-node.ts b/src/components/register-node.ts
index 3430158..b68cf36 100644
--- a/src/components/register-node.ts
+++ b/src/components/register-node.ts
@@ -140,18 +140,19 @@ G6.registerNode(
       },
     },
     draw(cfg, group) {
-      const nodeDef = nodeDefs.get(cfg.name as string);
+      const data = cfg as TreeGraphData;
+      const nodeDef = nodeDefs.get(data.name);
       let classify = getNodeType(nodeDef);
       let color = nodeDef.color || NODE_COLORS[classify] || NODE_COLORS["Other"];
       if (
-        !nodeDefs.has(cfg.name as string) ||
-        (cfg.path && (!cfg.children || (cfg.children as []).length === 0)) ||
-        !checkTreeData(cfg as TreeGraphData)
+        !nodeDefs.has(data.name) ||
+        (data.path && !data.children?.length) ||
+        !checkTreeData(data)
       ) {
         classify = "Error";
         color = NODE_COLORS[classify];
       }
-      const size = cfg.size ? (cfg.size as number[]) : [150, 40];
+      const size = data.size ? data.size : [150, 40];
       const w = size[0];
       const h = size[1];
       const r = 4;
@@ -159,7 +160,7 @@ G6.registerNode(
       let bgColor = "white";
       let textColor = "black";
 
-      if (cfg.highlightGray) {
+      if (data.highlightGray) {
         bgColor = "#0d1117";
         color = "#30363d";
         textColor = "#666";
@@ -207,7 +208,7 @@ G6.registerNode(
       );
 
       // is subtree
-      if (cfg.path && cfg.id !== "1") {
+      if (data.path && data.id !== "1") {
         addShape("rect", {
           attrs: {
             x: -10,
@@ -246,7 +247,7 @@ G6.registerNode(
           y: h / 2 - 8,
           fontSize: 20,
           lineHeight: 20,
-          text: cfg.id,
+          text: data.id,
           textAlign: "right",
           fill: "white",
           stroke: textColor,
@@ -269,7 +270,7 @@ G6.registerNode(
       });
 
       // status
-      const status = (((cfg.status ?? 0) as number) & 0b111).toString(2).padStart(3, "0");
+      const status = ((data.status ?? 0) & 0b111).toString(2).padStart(3, "0");
       addShape("image", {
         attrs: {
           x: 204,
@@ -288,7 +289,7 @@ G6.registerNode(
           x: 26,
           y: 5,
           fontWeight: 800,
-          text: cfg.name,
+          text: data.name,
           fill: textColor,
           fontSize: 13,
         },
@@ -296,7 +297,7 @@ G6.registerNode(
       });
 
       // debug
-      if (cfg.debug) {
+      if (data.debug) {
         addShape("image", {
           attrs: {
             x: 192,
@@ -309,10 +310,10 @@ G6.registerNode(
         });
       }
 
-      if (cfg.disabled) {
+      if (data.disabled) {
         addShape("image", {
           attrs: {
-            x: 200 - (cfg.debug ? 25 : 8),
+            x: 200 - (data.debug ? 25 : 8),
             y: 4,
             height: 16,
             width: 16,
@@ -325,7 +326,7 @@ G6.registerNode(
       const x = 6;
       let y = 32;
       // desc text
-      let desc = (cfg.desc || nodeDef.desc) as string;
+      let desc = (data.desc || nodeDef.desc) as string;
       if (desc) {
         desc = i18n.t("regnode.mark") + desc;
         desc = cutWordTo(desc, w - 15);
@@ -343,7 +344,7 @@ G6.registerNode(
         });
       }
 
-      const args: any = cfg.args;
+      const args: any = data.args;
       if (nodeDef.args && args && Object.keys(args).length > 0) {
         const { str, line } = toBreakWord(`${i18n.t("regnode.args")}${JSON.stringify(args)}`, 200);
         addShape("text", {
@@ -361,13 +362,13 @@ G6.registerNode(
         y += 20 * line;
       }
 
-      const input: [] = cfg.input ? (cfg.input as []) : [];
+      const input = data.input ?? [];
       if (nodeDef.input && input.length > 0) {
         const { str, line } = toBreakWord(
           `${i18n.t("regnode.input")}${JSON.stringify(input)}`,
           200
         );
-        if (cfg.highlightInput) {
+        if (data.highlightInput) {
           addShape("rect", {
             attrs: {
               x: x - 2,
@@ -389,8 +390,8 @@ G6.registerNode(
               y: y + 20,
               lineHeight: 20,
               text: str,
-              fill: cfg.highlightInput ? "white" : textColor,
-              fontWeight: cfg.highlightInput ? "bolder" : undefined,
+              fill: data.highlightInput ? "white" : textColor,
+              fontWeight: data.highlightInput ? "bolder" : undefined,
             },
             name: "input-text",
           },
@@ -399,13 +400,13 @@ G6.registerNode(
         y += 20 * line;
       }
 
-      const output: [] = cfg.output ? (cfg.output as []) : [];
+      const output = data.output ?? [];
       if (nodeDef.output && output.length > 0) {
         const { str, line } = toBreakWord(
           `${i18n.t("regnode.output")}${JSON.stringify(output)}`,
           200
         );
-        if (cfg.highlightOutput) {
+        if (data.highlightOutput) {
           addShape("rect", {
             attrs: {
               x: x - 2,
@@ -427,8 +428,8 @@ G6.registerNode(
               y: y + 20,
               lineHeight: 20,
               text: str,
-              fill: cfg.highlightOutput ? "white" : textColor,
-              fontWeight: cfg.highlightOutput ? "bolder" : undefined,
+              fill: data.highlightOutput ? "white" : textColor,
+              fontWeight: data.highlightOutput ? "bolder" : undefined,
             },
             name: "output-text",
           },
@@ -437,8 +438,8 @@ G6.registerNode(
         y += 20 * line;
       }
 
-      if (cfg.path) {
-        let path = (i18n.t("regnode.subtree") + cfg.path) as string;
+      if (data.path) {
+        let path = (i18n.t("regnode.subtree") + data.path) as string;
         path = cutWordTo(path, w - 15);
         addShape("text", {
           attrs: {
@@ -505,7 +506,7 @@ G6.registerNode(
         draggable: true,
       });
 
-      if (Array.isArray(cfg.children) && cfg.children.length > 0) {
+      if (data.children?.length) {
         addShape("marker", {
           attrs: {
             x: w,
diff --git a/src/components/titlebar.tsx b/src/components/titlebar.tsx
index 1ea4dbd..a83e178 100644
--- a/src/components/titlebar.tsx
+++ b/src/components/titlebar.tsx
@@ -1,8 +1,8 @@
 import { SearchOutlined } from "@ant-design/icons";
 import { Button, Flex, LayoutProps, Select } from "antd";
 import React, { FC, useMemo } from "react";
+import { NodeDef } from "../behavior3/src/behavior3";
 import { useWorkspace } from "../contexts/workspace-context";
-import { NodeDef } from "../misc/b3type";
 import { Hotkey, isMacos } from "../misc/keys";
 import Path from "../misc/path";
 import { Menu } from "./menu";
diff --git a/src/contexts/workspace-context.ts b/src/contexts/workspace-context.ts
index 179fa50..eb3661a 100644
--- a/src/contexts/workspace-context.ts
+++ b/src/contexts/workspace-context.ts
@@ -4,7 +4,8 @@ import { ipcRenderer } from "electron";
 import * as fs from "fs";
 import React from "react";
 import { create } from "zustand";
-import { NodeDef, NodeModel, TreeGraphData, TreeModel } from "../misc/b3type";
+import { NodeDef } from "../behavior3/src/behavior3";
+import { NodeModel, TreeGraphData, TreeModel } from "../misc/b3type";
 import * as b3util from "../misc/b3util";
 import { message } from "../misc/hooks";
 import i18n from "../misc/i18n";
diff --git a/src/misc/b3type.ts b/src/misc/b3type.ts
index 2bf3950..ba228c6 100644
--- a/src/misc/b3type.ts
+++ b/src/misc/b3type.ts
@@ -1,43 +1,8 @@
 import { TreeGraphData as G6TreeGraphData } from "@antv/g6";
+import { NodeDef } from "../behavior3/src/behavior3";
 
-export type NodeType = "Action" | "Composite" | "Decorator" | "Condition" | "Other" | "Error";
-
-export interface NodeArg {
-  name: string;
-  type:
-    | "bool"
-    | "bool?"
-    | "bool[]"
-    | "bool[]?"
-    | "int"
-    | "int?"
-    | "int[]"
-    | "int[]?"
-    | "float"
-    | "float?"
-    | "float[]"
-    | "float[]?"
-    | "string"
-    | "string?"
-    | "string[]"
-    | "string[]?"
-    | "json"
-    | "json?"
-    | "json[]"
-    | "json[]?"
-    | "enum"
-    | "enum?"
-    | "enum[]"
-    | "enum[]?"
-    | "expr"
-    | "expr?"
-    | "expr[]"
-    | "expr[]?";
-  desc: string;
-  oneof?: string;
-  default?: unknown;
-  options?: { name: string; value: string | number }[];
-}
+export type NodeType = NodeDef["type"] | "Other" | "Error";
+export type NodeArg = Exclude<NodeDef["args"], undefined>[number];
 
 export const isIntType = (type: string) => type.startsWith("int");
 export const isFloatType = (type: string) => type.startsWith("float");
@@ -47,40 +12,6 @@ export const isEnumType = (type: string) => type.startsWith("enum");
 export const isExprType = (type: string) => type.startsWith("expr") || type.startsWith("code");
 export const isJsonType = (type: string) => type.startsWith("json");
 
-export interface NodeDef {
-  name: string;
-  type: NodeType;
-  desc?: string;
-  args?: NodeArg[];
-  input?: string[];
-  output?: string[];
-  doc?: string;
-  color?: string;
-  icon?: string;
-  /**
-   * + `!success`  !(child_success|child_success|...)
-   * + `!failure`  !(child_failure|child_failure|...)
-   * + `|success`  child_success|child_success|...
-   * + `|failure`  child_failure|child_failure|...
-   * + `|running`  child_running|child_running|...
-   * + `&success`  child_success&child_success&...
-   * + `&failure`  child_failure&child_failure&...
-   */
-  status?: (
-    | "success"
-    | "failure"
-    | "running"
-    | "!success"
-    | "!failure"
-    | "|success"
-    | "|failure"
-    | "|running"
-    | "&success"
-    | "&failure"
-  )[];
-  children?: -1 | 0 | 1;
-}
-
 export interface NodeModel {
   id: number;
   name: string;
diff --git a/src/misc/b3util.ts b/src/misc/b3util.ts
index 2fc6dc9..140dc6d 100644
--- a/src/misc/b3util.ts
+++ b/src/misc/b3util.ts
@@ -1,4 +1,5 @@
 import * as fs from "fs";
+import { NodeDef } from "../behavior3/src/behavior3";
 import {
   isBoolType,
   isEnumType,
@@ -8,7 +9,6 @@ import {
   isJsonType,
   isStringType,
   NodeArg,
-  NodeDef,
   NodeModel,
   TreeGraphData,
   TreeModel,