diff --git a/README.ja.md b/README.ja.md
index 2880f64..50b05ca 100644
--- a/README.ja.md
+++ b/README.ja.md
@@ -76,6 +76,10 @@ ws://127.0.0.1:8765/ws
 ### 目次
 - [🏓 Ping-Pong（接続テスト）](#-ping-pong接続テスト)
 - [🌲 Tree（シーン構造）](#-treeシーン構造)
+- [📦 Item（アイテムカタログ）](#-itemアイテムカタログ)
+  - [グループ一覧取得](#グループ一覧取得)
+  - [グループ内カテゴリ取得](#グループ内カテゴリ取得)
+  - [カテゴリ内アイテム取得](#カテゴリ内アイテム取得)
 - [🔄 Update（オブジェクト変更）](#-updateオブジェクト変更)
   - [Transform更新](#transform更新)
   - [アイテム色変更](#アイテム色変更)
@@ -144,6 +148,127 @@ ws://127.0.0.1:8765/ws
 ]
 ```
 
+### 📦 Item（アイテムカタログ）
+
+シーンに追加可能なすべてのアイテムの情報を取得します。アイテムは階層構造で整理されています：グループ → カテゴリ → アイテム。
+
+#### グループ一覧取得
+
+すべてのアイテムグループの一覧を取得：
+
+**リクエスト:**
+```json
+{
+  "type": "item",
+  "command": "list-groups"
+}
+```
+
+**レスポンス:**
+```json
+{
+  "type": "success",
+  "command": "list-groups",
+  "data": [
+    {
+      "id": 0,
+      "name": "アイテム",
+      "categoryCount": 15
+    },
+    {
+      "id": 1,
+      "name": "ライト",
+      "categoryCount": 3
+    }
+  ]
+}
+```
+
+#### グループ内カテゴリ取得
+
+指定したグループ内のカテゴリを取得：
+
+**リクエスト:**
+```json
+{
+  "type": "item",
+  "command": "list-group",
+  "groupId": 0
+}
+```
+
+**レスポンス:**
+```json
+{
+  "type": "success",
+  "command": "list-group",
+  "groupId": 0,
+  "data": {
+    "id": 0,
+    "name": "アイテム",
+    "categories": [
+      {
+        "id": 0,
+        "name": "図形",
+        "itemCount": 25
+      },
+      {
+        "id": 1,
+        "name": "家具",
+        "itemCount": 42
+      }
+    ]
+  }
+}
+```
+
+#### カテゴリ内アイテム取得
+
+指定したカテゴリ内のすべてのアイテムを取得：
+
+**リクエスト:**
+```json
+{
+  "type": "item",
+  "command": "list-category",
+  "groupId": 0,
+  "categoryId": 0
+}
+```
+
+**レスポンス:**
+```json
+{
+  "type": "success",
+  "command": "list-category",
+  "groupId": 0,
+  "categoryId": 0,
+  "data": {
+    "id": 0,
+    "name": "図形",
+    "groupId": 0,
+    "items": [
+      {
+        "id": 0,
+        "name": "スフィア（通常）",
+        "properties": {
+          "isAnime": false,
+          "isScale": true,
+          "hasColor": true,
+          "colorSlots": 3,
+          "hasPattern": false,
+          "patternSlots": 0,
+          "isEmission": false,
+          "isGlass": false,
+          "bones": 0,
+          "childRoot": ""
+        }
+      }
+    ]
+  }
+}
+```
+
 ### 📝 Update（オブジェクト変更）
 
 #### Transform更新
diff --git a/README.md b/README.md
index 33e9d15..d08fcd3 100644
--- a/README.md
+++ b/README.md
@@ -80,6 +80,10 @@ All commands and responses use JSON format.
 ### Table of Contents
 - [🏓 Ping-Pong (Connection Test)](#-ping-pong-connection-test)
 - [🌲 Tree (Scene Structure)](#-tree-scene-structure)
+- [📦 Item (Item Catalog)](#-item-item-catalog)
+  - [List Groups](#list-groups)
+  - [List Group Categories](#list-group-categories)
+  - [List Category Items](#list-category-items)
 - [🔄 Update (Object Properties)](#-update-object-properties)
   - [Update Transform](#update-transform)
   - [Update Item Color](#update-item-color)
@@ -148,6 +152,127 @@ Retrieve the complete scene object hierarchy:
 ]
 ```
 
+### 📦 Item (Item Catalog)
+
+Retrieve information about all available items that can be added to the scene. Items are organized in a hierarchical structure: Groups → Categories → Items.
+
+#### List Groups
+
+Get a list of all item groups:
+
+**Request:**
+```json
+{
+  "type": "item",
+  "command": "list-groups"
+}
+```
+
+**Response:**
+```json
+{
+  "type": "success",
+  "command": "list-groups",
+  "data": [
+    {
+      "id": 0,
+      "name": "Items",
+      "categoryCount": 15
+    },
+    {
+      "id": 1,
+      "name": "Lights",
+      "categoryCount": 3
+    }
+  ]
+}
+```
+
+#### List Group Categories
+
+Get categories within a specific group:
+
+**Request:**
+```json
+{
+  "type": "item",
+  "command": "list-group",
+  "groupId": 0
+}
+```
+
+**Response:**
+```json
+{
+  "type": "success",
+  "command": "list-group",
+  "groupId": 0,
+  "data": {
+    "id": 0,
+    "name": "Items",
+    "categories": [
+      {
+        "id": 0,
+        "name": "Shapes",
+        "itemCount": 25
+      },
+      {
+        "id": 1,
+        "name": "Furniture",
+        "itemCount": 42
+      }
+    ]
+  }
+}
+```
+
+#### List Category Items
+
+Get all items within a specific category:
+
+**Request:**
+```json
+{
+  "type": "item",
+  "command": "list-category",
+  "groupId": 0,
+  "categoryId": 0
+}
+```
+
+**Response:**
+```json
+{
+  "type": "success",
+  "command": "list-category",
+  "groupId": 0,
+  "categoryId": 0,
+  "data": {
+    "id": 0,
+    "name": "Shapes",
+    "groupId": 0,
+    "items": [
+      {
+        "id": 0,
+        "name": "Sphere (Normal)",
+        "properties": {
+          "isAnime": false,
+          "isScale": true,
+          "hasColor": true,
+          "colorSlots": 3,
+          "hasPattern": false,
+          "patternSlots": 0,
+          "isEmission": false,
+          "isGlass": false,
+          "bones": 0,
+          "childRoot": ""
+        }
+      }
+    ]
+  }
+}
+```
+
 ### 📝 Update (Modify Objects)
 
 #### Update Transform
diff --git a/notebooks/box.ipynb b/notebooks/box.ipynb
new file mode 100644
index 0000000..5ba22c4
--- /dev/null
+++ b/notebooks/box.ipynb
@@ -0,0 +1,203 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "6287d4f5",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import time\n",
+    "import json\n",
+    "import nest_asyncio\n",
+    "import asyncio\n",
+    "import websockets\n",
+    "import numpy as np\n",
+    "import math\n",
+    "import random\n",
+    "import colorsys\n",
+    "from tqdm.notebook import tqdm\n",
+    "nest_asyncio.apply()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "f080eaaf",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "async def websocket_test(payload, indent=None, quiet=False):\n",
+    "    uri = \"ws://127.0.0.1:8765/ws\"\n",
+    "    async with websockets.connect(uri) as ws:\n",
+    "        await ws.send(json.dumps(payload))\n",
+    "        if not quiet:\n",
+    "            print(\"✅ send:\", payload)\n",
+    "\n",
+    "        try:\n",
+    "            # 5 秒以内に返事が来なければ TimeoutError\n",
+    "            response = await asyncio.wait_for(ws.recv(), timeout=5)\n",
+    "            if not quiet:\n",
+    "                if indent:\n",
+    "                    print(\"📨 recv: \", json.dumps(json.loads(response), indent=indent, ensure_ascii=False))\n",
+    "                else:\n",
+    "                    print(\"📨 recv:\", response)\n",
+    "            return json.loads(response)\n",
+    "        except asyncio.TimeoutError:\n",
+    "            print(\"⏰ タイムアウト（5 秒以内にメッセージが来ませんでした）\")"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 12,
+   "id": "b30fb5c4",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "✅ send: {'type': 'tree'}\n",
+      "📨 recv: [{\"name\":\"篠崎 遥\",\"objectInfo\":{\"id\":0,\"type\":\"OCICharFemale\"},\"children\":[]},{\"name\":\"center\",\"objectInfo\":{\"id\":2212,\"type\":\"OCIFolder\"},\"children\":[{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2213,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2215,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2217,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2219,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2221,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2223,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2225,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2227,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2229,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2231,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2233,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2235,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2237,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2239,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2241,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2243,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2245,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2247,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2249,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2251,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2253,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2255,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2257,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2259,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2261,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2263,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2265,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2267,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2269,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2271,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2273,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2275,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2277,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2279,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2281,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2283,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2285,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2287,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2289,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2291,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2293,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2295,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2297,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2299,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2301,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2303,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2305,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2307,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2309,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2311,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2313,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2315,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2317,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2319,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2321,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2323,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2325,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2327,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2329,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2331,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2333,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2335,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2337,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2339,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2341,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2343,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2345,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2347,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2349,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2351,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2353,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2355,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2357,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2359,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2361,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2363,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2365,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2367,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2369,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2371,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2373,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2375,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2377,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2379,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2381,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2383,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2385,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2387,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2389,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2391,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2393,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2395,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2397,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2399,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2401,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2403,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2405,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2407,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2409,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2411,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2413,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2415,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2417,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2419,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2421,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2423,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2425,\"type\":\"OCIItem\"},\"children\":[]},{\"name\":\"キューブ(通常）\",\"objectInfo\":{\"id\":2427,\"type\":\"OCIItem\"},\"children\":[]}]}]\n",
+      "✅ send: {'type': 'delete', 'id': 2212}\n",
+      "📨 recv: {\"type\":\"success\",\"message\":\"Object 2212 deleted successfully\"}\n",
+      "✅ send: {'type': 'add', 'command': 'folder', 'name': 'center'}\n",
+      "📨 recv: {\"type\":\"success\",\"message\":\"Folder added successfully with name: center\",\"objectId\":2212}\n",
+      "✅ send: {'type': 'update', 'command': 'transform', 'id': 2212, 'pos': [0.0, 1.5, 0.5]}\n",
+      "📨 recv: {\"type\":\"success\",\"message\":\"Transform updated for object ID 2212\"}\n"
+     ]
+    }
+   ],
+   "source": [
+    "payload = {\n",
+    "    \"type\": \"tree\",\n",
+    "}\n",
+    "tree = await websocket_test(payload)\n",
+    "\n",
+    "for item in tree:\n",
+    "    if item[\"name\"] == \"center\":\n",
+    "        payload = {\n",
+    "            \"type\": \"delete\",\n",
+    "            \"id\": item[\"objectInfo\"][\"id\"],\n",
+    "        }\n",
+    "        await websocket_test(payload)\n",
+    "\n",
+    "payload = {\n",
+    "    \"type\": \"add\",\n",
+    "    \"command\": \"folder\",\n",
+    "    \"name\": \"center\"\n",
+    "}\n",
+    "response = await websocket_test(payload)\n",
+    "center_id = response[\"objectId\"]\n",
+    "\n",
+    "payload = {\n",
+    "    \"type\": \"update\",\n",
+    "    \"command\": \"transform\",\n",
+    "    \"id\": center_id,\n",
+    "    \"pos\": [0.0, 1.5, 0.5],\n",
+    "}\n",
+    "response = await websocket_test(payload)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 13,
+   "id": "7d3ecb1c",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "application/vnd.jupyter.widget-view+json": {
+       "model_id": "b22b79937ef04580b3dca114fd534344",
+       "version_major": 2,
+       "version_minor": 0
+      },
+      "text/plain": [
+       "  0%|          | 0/1080 [00:00<?, ?it/s]"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
+   "source": [
+    "\n",
+    "def random_color_with_fixed_saturation(saturation=1.0, value=1.0):\n",
+    "    h = random.uniform(0.0, 1.0)\n",
+    "    r, g, b = colorsys.hsv_to_rgb(h, saturation, value)\n",
+    "    return [r, g, b, 1.0]\n",
+    "\n",
+    "RANGE = 5\n",
+    "\n",
+    "for angle in tqdm(range(360*3)):\n",
+    "    if angle % 10 != 0:\n",
+    "        continue\n",
+    "\n",
+    "    payload = {\n",
+    "        \"type\": \"add\",\n",
+    "        \"command\": \"item\",\n",
+    "        \"group\": 0,\n",
+    "        \"category\": 0,\n",
+    "        \"itemId\": 1,\n",
+    "    }\n",
+    "    response = await websocket_test(payload, quiet=True)\n",
+    "    item_id = response[\"objectId\"]\n",
+    "\n",
+    "    payload = {\n",
+    "        \"type\": \"hierarchy\",\n",
+    "        \"command\": \"attach\",\n",
+    "        \"childId\": item_id,\n",
+    "        \"parentId\": center_id,\n",
+    "    }\n",
+    "    response = await websocket_test(payload, quiet=True)\n",
+    "\n",
+    "    range_ = random.uniform(0.1, 5)\n",
+    "    height = random.uniform(-1.5, 1.5)\n",
+    "    scale = random.uniform(1, 3)\n",
+    "    payload = {\n",
+    "        \"type\": \"update\",\n",
+    "        \"command\": \"transform\",\n",
+    "        \"id\": item_id,\n",
+    "        \"pos\": [\n",
+    "            math.cos(math.radians(angle))*range_,\n",
+    "            height,\n",
+    "            math.sin(math.radians(angle))*range_,\n",
+    "        ],\n",
+    "        \"rot\": [random.uniform(0, 360) for _ in range(3)],\n",
+    "        \"scale\": [scale for _ in range(3)],\n",
+    "    }\n",
+    "    response = await websocket_test(payload, quiet=True)\n",
+    "\n",
+    "    payload = {\n",
+    "        \"type\": \"update\",\n",
+    "        \"command\": \"color\",\n",
+    "        \"id\": item_id,\n",
+    "        \"color\": list(random_color_with_fixed_saturation(0.9, 0.9)),\n",
+    "        \"colorIndex\": 0,\n",
+    "    }\n",
+    "    response = await websocket_test(payload, quiet=True)"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": ".venv",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.12.5"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}
diff --git a/notebooks/item.ipynb b/notebooks/item.ipynb
new file mode 100644
index 0000000..a5cb085
--- /dev/null
+++ b/notebooks/item.ipynb
@@ -0,0 +1,1700 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Item Catalog API Test\n",
+    "\n",
+    "This notebook demonstrates how to retrieve the complete item catalog from KKStudioSocket.\n",
+    "The item catalog provides information about all available items organized by groups and categories."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import time\n",
+    "import json\n",
+    "import nest_asyncio\n",
+    "import asyncio\n",
+    "import websockets\n",
+    "nest_asyncio.apply()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "{'type': 'success',\n",
+       " 'command': 'list-groups',\n",
+       " 'data': [{'id': 0, 'name': '基本形', 'categoryCount': 8},\n",
+       "  {'id': 1, 'name': 'ベース', 'categoryCount': 45},\n",
+       "  {'id': 2, 'name': '家具', 'categoryCount': 11},\n",
+       "  {'id': 3, 'name': 'オブジェ', 'categoryCount': 59},\n",
+       "  {'id': 4, 'name': '食材', 'categoryCount': 7},\n",
+       "  {'id': 5, 'name': '小物', 'categoryCount': 16},\n",
+       "  {'id': 6, 'name': 'キャラ', 'categoryCount': 37},\n",
+       "  {'id': 7, 'name': 'Ｈアイテム', 'categoryCount': 10},\n",
+       "  {'id': 9, 'name': '2D効果', 'categoryCount': 7},\n",
+       "  {'id': 10, 'name': 'ギミック', 'categoryCount': 2},\n",
+       "  {'id': 11, 'name': '3DSE', 'categoryCount': 46},\n",
+       "  {'id': 12, 'name': '武器', 'categoryCount': 21},\n",
+       "  {'id': 13, 'name': 'エフェクト', 'categoryCount': 7},\n",
+       "  {'id': 14, 'name': 'グロー', 'categoryCount': 2},\n",
+       "  {'id': 15, 'name': 'FKアイテム', 'categoryCount': 7},\n",
+       "  {'id': 16, 'name': 'いきもの', 'categoryCount': 1},\n",
+       "  {'id': 133, 'name': 'Neptunia', 'categoryCount': 21},\n",
+       "  {'id': 155, 'name': 'LaoDeng', 'categoryCount': 1},\n",
+       "  {'id': 213, 'name': 'Hyrule Warriors', 'categoryCount': 1},\n",
+       "  {'id': 300, 'name': 'Battletech', 'categoryCount': 2},\n",
+       "  {'id': 315, 'name': 'Electronic & Tech', 'categoryCount': 1},\n",
+       "  {'id': 367, 'name': 'Lesbianon', 'categoryCount': 1},\n",
+       "  {'id': 390, 'name': 'ANSE', 'categoryCount': 1},\n",
+       "  {'id': 391, 'name': 'ANSE', 'categoryCount': 1},\n",
+       "  {'id': 444, 'name': 'Belkan', 'categoryCount': 5},\n",
+       "  {'id': 483, 'name': 'Action Taimanin Weapons', 'categoryCount': 1},\n",
+       "  {'id': 501, 'name': '[ymd] 演出', 'categoryCount': 9},\n",
+       "  {'id': 502, 'name': '[ymd] 大道具', 'categoryCount': 9},\n",
+       "  {'id': 503, 'name': '[ymd] 小道具', 'categoryCount': 8},\n",
+       "  {'id': 513, 'name': 'Honkai 3rd', 'categoryCount': 5},\n",
+       "  {'id': 700, 'name': \"Creamstar's Stuffs\", 'categoryCount': 7},\n",
+       "  {'id': 725, 'name': 'Sock 1', 'categoryCount': 1},\n",
+       "  {'id': 762, 'name': 'Yuri', 'categoryCount': 1},\n",
+       "  {'id': 830, 'name': 'Vehicle', 'categoryCount': 1},\n",
+       "  {'id': 840, 'name': 'Aircraft', 'categoryCount': 1},\n",
+       "  {'id': 849, 'name': 'StudioVehicles', 'categoryCount': 1},\n",
+       "  {'id': 850, 'name': 'StudioGuns', 'categoryCount': 1},\n",
+       "  {'id': 860, 'name': 'SteveAraiMods', 'categoryCount': 7},\n",
+       "  {'id': 861, 'name': '[Cz]', 'categoryCount': 8},\n",
+       "  {'id': 865, 'name': 'Lhianna', 'categoryCount': 1},\n",
+       "  {'id': 879, 'name': 'SUI', 'categoryCount': 1},\n",
+       "  {'id': 899, 'name': \"Cream's Accessories Prop\", 'categoryCount': 1},\n",
+       "  {'id': 900, 'name': 'Firearms', 'categoryCount': 10},\n",
+       "  {'id': 901, 'name': 'VC Weapons', 'categoryCount': 2},\n",
+       "  {'id': 902, 'name': 'Firearms Attachments', 'categoryCount': 1},\n",
+       "  {'id': 1000, 'name': 'ZMX', 'categoryCount': 1},\n",
+       "  {'id': 1001, 'name': '7S', 'categoryCount': 1},\n",
+       "  {'id': 1005, 'name': 'Eijineer', 'categoryCount': 1},\n",
+       "  {'id': 1015, 'name': 'Omega', 'categoryCount': 14},\n",
+       "  {'id': 1020, 'name': 'Eijineer', 'categoryCount': 2},\n",
+       "  {'id': 1113, 'name': 'Neverlucky', 'categoryCount': 1},\n",
+       "  {'id': 1122, 'name': ' Kage no Jitsuryokusha', 'categoryCount': 1},\n",
+       "  {'id': 1212, 'name': 'Eijineer', 'categoryCount': 1},\n",
+       "  {'id': 1305, 'name': 'AnnaAnon', 'categoryCount': 1},\n",
+       "  {'id': 1312, 'name': 'Tinala', 'categoryCount': 6},\n",
+       "  {'id': 1414, 'name': 'Eijineer', 'categoryCount': 1},\n",
+       "  {'id': 1551, 'name': 'Frostation', 'categoryCount': 10},\n",
+       "  {'id': 1555, 'name': 'ConQ', 'categoryCount': 43},\n",
+       "  {'id': 1975, 'name': 'KAKA', 'categoryCount': 1},\n",
+       "  {'id': 1997, 'name': 'TDI', 'categoryCount': 1},\n",
+       "  {'id': 2015, 'name': 'SmokeOfC', 'categoryCount': 1},\n",
+       "  {'id': 2017, 'name': 'H0STILE', 'categoryCount': 2},\n",
+       "  {'id': 2040, 'name': 'Personaitems', 'categoryCount': 1},\n",
+       "  {'id': 2050, 'name': 'Musumakeup', 'categoryCount': 3},\n",
+       "  {'id': 2051, 'name': 'Keelhauled', 'categoryCount': 1},\n",
+       "  {'id': 2052, 'name': 'EmotionCreators', 'categoryCount': 1},\n",
+       "  {'id': 2090, 'name': 'AdditionalItems', 'categoryCount': 4},\n",
+       "  {'id': 2172, 'name': 'Tsundere Opr8tr', 'categoryCount': 2},\n",
+       "  {'id': 2200, 'name': 'xm007', 'categoryCount': 7},\n",
+       "  {'id': 2204, 'name': 'boubou', 'categoryCount': 2},\n",
+       "  {'id': 2222, 'name': 'Eijineer', 'categoryCount': 3},\n",
+       "  {'id': 2501, 'name': 'mhw', 'categoryCount': 1},\n",
+       "  {'id': 2503, 'name': 'lj7654321', 'categoryCount': 2},\n",
+       "  {'id': 2612, 'name': 'MeleHigh26', 'categoryCount': 1},\n",
+       "  {'id': 2680, 'name': \"DA's Stuff\", 'categoryCount': 4},\n",
+       "  {'id': 2802, 'name': 'f-m-e-p', 'categoryCount': 1},\n",
+       "  {'id': 3317, 'name': 'Jinsung', 'categoryCount': 2},\n",
+       "  {'id': 3351, 'name': 'Astral Series', 'categoryCount': 1},\n",
+       "  {'id': 3352, 'name': 'Eternal Series', 'categoryCount': 1},\n",
+       "  {'id': 3423, 'name': 'CDWard', 'categoryCount': 7},\n",
+       "  {'id': 3467, 'name': 'Pineapple', 'categoryCount': 11},\n",
+       "  {'id': 3614, 'name': 'Apex Legends Weapons', 'categoryCount': 1},\n",
+       "  {'id': 3707, 'name': 'N3x7xp', 'categoryCount': 1},\n",
+       "  {'id': 3770, 'name': 'Badminton_Equipment', 'categoryCount': 1},\n",
+       "  {'id': 3782, 'name': 'Slormo', 'categoryCount': 2},\n",
+       "  {'id': 4015, 'name': 'GF', 'categoryCount': 3},\n",
+       "  {'id': 4500, 'name': \"Creamstar's Map Collection\", 'categoryCount': 1},\n",
+       "  {'id': 4600, 'name': 'ToCS 1', 'categoryCount': 18},\n",
+       "  {'id': 5225, 'name': 'Vi', 'categoryCount': 1},\n",
+       "  {'id': 5666, 'name': \"Kidnapper's kit\", 'categoryCount': 1},\n",
+       "  {'id': 5740, 'name': 'Timmehs Misc Ports', 'categoryCount': 34},\n",
+       "  {'id': 5741, 'name': 'Elder Scrolls Architecture', 'categoryCount': 2},\n",
+       "  {'id': 5742, 'name': 'Timmehs Maps', 'categoryCount': 2},\n",
+       "  {'id': 5749, 'name': 'Sims4Ports', 'categoryCount': 18},\n",
+       "  {'id': 5769, 'name': 'Pirate', 'categoryCount': 1},\n",
+       "  {'id': 5843, 'name': 'Taimanin Weapons', 'categoryCount': 1},\n",
+       "  {'id': 5857, 'name': 'Genshin Enviroment', 'categoryCount': 12},\n",
+       "  {'id': 6001, 'name': 'MakotoYuki90', 'categoryCount': 21},\n",
+       "  {'id': 6005, 'name': 'AleX', 'categoryCount': 1},\n",
+       "  {'id': 6006, 'name': 'Poop', 'categoryCount': 1},\n",
+       "  {'id': 6010, 'name': 'AleX', 'categoryCount': 2},\n",
+       "  {'id': 6011, 'name': 'AleX', 'categoryCount': 2},\n",
+       "  {'id': 6106, 'name': 'nakay', 'categoryCount': 2},\n",
+       "  {'id': 6666, 'name': 'JR', 'categoryCount': 3},\n",
+       "  {'id': 6901, 'name': 'KoikDaisy', 'categoryCount': 1},\n",
+       "  {'id': 7001, 'name': 'HLD', 'categoryCount': 1},\n",
+       "  {'id': 7020, 'name': 'Project DIVA', 'categoryCount': 11},\n",
+       "  {'id': 7227, 'name': 'DS27 Objects', 'categoryCount': 5},\n",
+       "  {'id': 7441, 'name': 'JetJaguar', 'categoryCount': 2},\n",
+       "  {'id': 7506, 'name': 'WraxTV', 'categoryCount': 1},\n",
+       "  {'id': 7769, 'name': 'ZetaStuff', 'categoryCount': 7},\n",
+       "  {'id': 8422, 'name': 'RSkoi Collection', 'categoryCount': 2},\n",
+       "  {'id': 8423, 'name': 'RSkoi Environment', 'categoryCount': 6},\n",
+       "  {'id': 8690, 'name': 'Gaikotsu', 'categoryCount': 1},\n",
+       "  {'id': 9000, 'name': 'GaryuX', 'categoryCount': 6},\n",
+       "  {'id': 9001, 'name': 'Ozsaru', 'categoryCount': 1},\n",
+       "  {'id': 9005, 'name': 'SoDevs&YeDevs', 'categoryCount': 8},\n",
+       "  {'id': 9020, 'name': 'Nexus', 'categoryCount': 4},\n",
+       "  {'id': 9025, 'name': 'Vancouver12', 'categoryCount': 2},\n",
+       "  {'id': 9075, 'name': 'The Lucky Freeman', 'categoryCount': 1},\n",
+       "  {'id': 9113, 'name': 'Noble_Kale', 'categoryCount': 13},\n",
+       "  {'id': 9275, 'name': 'Starstorm', 'categoryCount': 2},\n",
+       "  {'id': 9411, 'name': 'LD', 'categoryCount': 1},\n",
+       "  {'id': 9664, 'name': 'murara', 'categoryCount': 1},\n",
+       "  {'id': 9766, 'name': 'JWAM Atrocities', 'categoryCount': 1},\n",
+       "  {'id': 9800, 'name': 'Gemini Bell', 'categoryCount': 1},\n",
+       "  {'id': 9927, 'name': 'Genshin Studio Mod', 'categoryCount': 2},\n",
+       "  {'id': 9943, 'name': 'Code Vein Acc Mod', 'categoryCount': 1},\n",
+       "  {'id': 9952, 'name': 'Ohno', 'categoryCount': 1},\n",
+       "  {'id': 9994, 'name': 'Danganronpa', 'categoryCount': 1},\n",
+       "  {'id': 9996, 'name': 'Manjuu Mod', 'categoryCount': 1},\n",
+       "  {'id': 9997, 'name': 'Posable Wave Mod', 'categoryCount': 1},\n",
+       "  {'id': 9998, 'name': 'Examples', 'categoryCount': 3},\n",
+       "  {'id': 10000, 'name': 'Naval', 'categoryCount': 1},\n",
+       "  {'id': 11112, 'name': 'Kaldeqca', 'categoryCount': 1},\n",
+       "  {'id': 12074, 'name': 'Bondage gear', 'categoryCount': 1},\n",
+       "  {'id': 12121, 'name': 'Holly', 'categoryCount': 1},\n",
+       "  {'id': 12221, 'name': 'Kitbash', 'categoryCount': 1},\n",
+       "  {'id': 13875, 'name': 'Rikki Balboa', 'categoryCount': 5},\n",
+       "  {'id': 14900, 'name': 'Soulworker', 'categoryCount': 1},\n",
+       "  {'id': 20208, 'name': 'shibal', 'categoryCount': 4},\n",
+       "  {'id': 20618, 'name': 'leisehg', 'categoryCount': 6},\n",
+       "  {'id': 33860, 'name': 'Petardo', 'categoryCount': 2},\n",
+       "  {'id': 36000, 'name': 'titan36', 'categoryCount': 2},\n",
+       "  {'id': 39601, 'name': 'Dvorak', 'categoryCount': 1},\n",
+       "  {'id': 40000, 'name': 'Nillsfriend', 'categoryCount': 2},\n",
+       "  {'id': 42069, 'name': 'AdmiralDock', 'categoryCount': 4},\n",
+       "  {'id': 42222, 'name': 'H_enry', 'categoryCount': 2},\n",
+       "  {'id': 55241, 'name': 'ubin', 'categoryCount': 2},\n",
+       "  {'id': 56000, 'name': 'Karls', 'categoryCount': 3},\n",
+       "  {'id': 56709, 'name': 'Kemono Friends', 'categoryCount': 7},\n",
+       "  {'id': 61005, 'name': 'Comsov 1', 'categoryCount': 1},\n",
+       "  {'id': 66999, 'name': 'Finer04', 'categoryCount': 1},\n",
+       "  {'id': 69420, 'name': 'earthship', 'categoryCount': 6},\n",
+       "  {'id': 69422, 'name': 'Yuri', 'categoryCount': 1},\n",
+       "  {'id': 74014, 'name': 'nashi', 'categoryCount': 8},\n",
+       "  {'id': 75000, 'name': 'shelter', 'categoryCount': 1},\n",
+       "  {'id': 75357, 'name': 'TestStuff', 'categoryCount': 1},\n",
+       "  {'id': 76000, 'name': 'shelter', 'categoryCount': 1},\n",
+       "  {'id': 83860, 'name': 'Nep', 'categoryCount': 20},\n",
+       "  {'id': 88620, 'name': 'oppressor', 'categoryCount': 1},\n",
+       "  {'id': 90009, 'name': 'Posable Cum', 'categoryCount': 1},\n",
+       "  {'id': 92111, 'name': 'Ltsuki', 'categoryCount': 12},\n",
+       "  {'id': 93860, 'name': 'PBS Ports', 'categoryCount': 1},\n",
+       "  {'id': 98001, 'name': 'dionel_MOD', 'categoryCount': 1},\n",
+       "  {'id': 98754, 'name': 'Esix', 'categoryCount': 1},\n",
+       "  {'id': 99980, 'name': 'Yakuza', 'categoryCount': 1},\n",
+       "  {'id': 115599, 'name': 'fissy', 'categoryCount': 1},\n",
+       "  {'id': 119999, 'name': 'giuls', 'categoryCount': 2},\n",
+       "  {'id': 121218, 'name': 'EricB', 'categoryCount': 1},\n",
+       "  {'id': 123456, 'name': 'SZY', 'categoryCount': 1},\n",
+       "  {'id': 130014, 'name': 'Billiard', 'categoryCount': 1},\n",
+       "  {'id': 131313, 'name': 'Fateburn', 'categoryCount': 1},\n",
+       "  {'id': 190801, 'name': 'CuteFluffyPeep', 'categoryCount': 3},\n",
+       "  {'id': 200000, 'name': 'BGZR Macross Mods', 'categoryCount': 3},\n",
+       "  {'id': 213920, 'name': 'M2M', 'categoryCount': 9},\n",
+       "  {'id': 220522, 'name': 'CEL', 'categoryCount': 6},\n",
+       "  {'id': 239820, 'name': 'Reverie', 'categoryCount': 13},\n",
+       "  {'id': 346001, 'name': 'IM@S_Stuff', 'categoryCount': 2},\n",
+       "  {'id': 407300, 'name': 'Augh', 'categoryCount': 5},\n",
+       "  {'id': 420420, 'name': ' Guicool', 'categoryCount': 2},\n",
+       "  {'id': 555710, 'name': 'Jas', 'categoryCount': 1},\n",
+       "  {'id': 600700, 'name': 'NewBie', 'categoryCount': 1},\n",
+       "  {'id': 600704, 'name': 'NewBie', 'categoryCount': 1},\n",
+       "  {'id': 647158, 'name': 'アクセサリー', 'categoryCount': 10},\n",
+       "  {'id': 739555, 'name': 'Ticklefist', 'categoryCount': 6},\n",
+       "  {'id': 739666, 'name': 'Ticklefist Showa', 'categoryCount': 3},\n",
+       "  {'id': 773311, 'name': '83', 'categoryCount': 2},\n",
+       "  {'id': 846143, 'name': 'MechaMobius', 'categoryCount': 5},\n",
+       "  {'id': 847209, 'name': 'Momo Kanae', 'categoryCount': 4},\n",
+       "  {'id': 921600, 'name': 'Hateleite_NierW', 'categoryCount': 1},\n",
+       "  {'id': 931601, 'name': 'Hateleite_mod', 'categoryCount': 1},\n",
+       "  {'id': 931603, 'name': 'Hateleite_Props', 'categoryCount': 1},\n",
+       "  {'id': 931610, 'name': 'Hateleite_DOOM', 'categoryCount': 11},\n",
+       "  {'id': 931611, 'name': 'Hateleite_Vehicle', 'categoryCount': 6},\n",
+       "  {'id': 931701, 'name': 'Hateleite_MAP', 'categoryCount': 3},\n",
+       "  {'id': 999772, 'name': 'AVS_Aviation', 'categoryCount': 2},\n",
+       "  {'id': 7000000, 'name': 'Steelcore_BDSM', 'categoryCount': 1},\n",
+       "  {'id': 7772302, 'name': 'HarvexARC-SI', 'categoryCount': 10},\n",
+       "  {'id': 7772303, 'name': 'HarvexARC-Maps', 'categoryCount': 2},\n",
+       "  {'id': 7772304, 'name': 'Minecraft Things', 'categoryCount': 12},\n",
+       "  {'id': 7772305, 'name': 'HarvexARC-HItems', 'categoryCount': 3},\n",
+       "  {'id': 7772306, 'name': 'HarvexARC-Effects', 'categoryCount': 4},\n",
+       "  {'id': 8000000, 'name': 'ljlsdq', 'categoryCount': 1},\n",
+       "  {'id': 8008502, 'name': 'Monarch', 'categoryCount': 2},\n",
+       "  {'id': 8645511, 'name': 'xiaotu777', 'categoryCount': 1}]}"
+      ]
+     },
+     "execution_count": 7,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "async def websocket_test(payload, indent=None, quiet=False):\n",
+    "    uri = \"ws://127.0.0.1:8765/ws\"\n",
+    "    async with websockets.connect(uri) as ws:\n",
+    "        await ws.send(json.dumps(payload))\n",
+    "        if not quiet:\n",
+    "            print(\"✅ send:\", payload)\n",
+    "\n",
+    "        try:\n",
+    "            # 5 秒以内に返事が来なければ TimeoutError\n",
+    "            response = await asyncio.wait_for(ws.recv(), timeout=5)\n",
+    "            if not quiet:\n",
+    "                if indent:\n",
+    "                    print(\"📨 recv: \", json.dumps(json.loads(response), indent=indent, ensure_ascii=False))\n",
+    "                else:\n",
+    "                    print(\"📨 recv:\", response)\n",
+    "            return json.loads(response)\n",
+    "        except asyncio.TimeoutError:\n",
+    "            print(\"⏰ タイムアウト（5 秒以内にメッセージが来ませんでした）\")\n",
+    "\n",
+    "payload = {\n",
+    "    \"type\": \"item\",\n",
+    "    \"command\": \"list-groups\",\n",
+    "}\n",
+    "await websocket_test(payload, quiet=True)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 8,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "{'type': 'success',\n",
+       " 'command': 'list-group',\n",
+       " 'groupId': 0,\n",
+       " 'data': {'id': 0,\n",
+       "  'name': '基本形',\n",
+       "  'categories': [{'id': 0, 'name': '通常', 'itemCount': 111},\n",
+       "   {'id': 1, 'name': 'キャラ', 'itemCount': 111},\n",
+       "   {'id': 2, 'name': '影あり', 'itemCount': 86},\n",
+       "   {'id': 10, 'name': 'STR_MOD(通常)', 'itemCount': 10},\n",
+       "   {'id': 11, 'name': 'STR_MOD(キャラ)', 'itemCount': 10},\n",
+       "   {'id': 12, 'name': 'STR_MOD(影)', 'itemCount': 10},\n",
+       "   {'id': 500, 'name': 'Baby', 'itemCount': 2},\n",
+       "   {'id': 65535, 'name': 'MOD', 'itemCount': 62}]}}"
+      ]
+     },
+     "execution_count": 8,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "payload = {\n",
+    "    \"type\": \"item\",\n",
+    "    \"command\": \"list-group\",\n",
+    "    \"groupId\": 0,\n",
+    "}\n",
+    "await websocket_test(payload, quiet=True)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 9,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "{'type': 'success',\n",
+       " 'command': 'list-category',\n",
+       " 'groupId': 0,\n",
+       " 'categoryId': 0,\n",
+       " 'data': {'id': 0,\n",
+       "  'name': '通常',\n",
+       "  'groupId': 0,\n",
+       "  'items': [{'id': 0,\n",
+       "    'name': 'スフィア(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1,\n",
+       "    'name': 'キューブ(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 2,\n",
+       "    'name': 'ピラミッド(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 3,\n",
+       "    'name': 'コーン(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 4,\n",
+       "    'name': 'シリンダー(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 5,\n",
+       "    'name': 'クリスタル(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 6,\n",
+       "    'name': 'リング(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 405,\n",
+       "    'name': '星1(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 406,\n",
+       "    'name': 'ハート1(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 407,\n",
+       "    'name': '爪(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 408,\n",
+       "    'name': '筒(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 409,\n",
+       "    'name': 'パイプ1(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 415,\n",
+       "    'name': '筒2(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 416,\n",
+       "    'name': 'パイプ2(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 419,\n",
+       "    'name': '台形1(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 421,\n",
+       "    'name': '矢印1(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 423,\n",
+       "    'name': '矢印2(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 425,\n",
+       "    'name': '矢印3(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 431,\n",
+       "    'name': '穴あきキューブ(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 433,\n",
+       "    'name': '直角1(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 435,\n",
+       "    'name': '直角2(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 437,\n",
+       "    'name': '台形2(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 439,\n",
+       "    'name': '三日月1(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 441,\n",
+       "    'name': '三日月2(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 443,\n",
+       "    'name': '三日月3(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 445,\n",
+       "    'name': '十字(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 447,\n",
+       "    'name': 'Ｖ字(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 449,\n",
+       "    'name': '穴あき楕円(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 451,\n",
+       "    'name': '先尖り棒(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 453,\n",
+       "    'name': '三角(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 455,\n",
+       "    'name': '穴あき三角(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 457,\n",
+       "    'name': '弧1(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 459,\n",
+       "    'name': 'ハート2(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 461,\n",
+       "    'name': '星2(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 463,\n",
+       "    'name': '星3(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 465,\n",
+       "    'name': '星4(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 467,\n",
+       "    'name': '弧2(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 469,\n",
+       "    'name': '弧3(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 471,\n",
+       "    'name': '直角3(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 473,\n",
+       "    'name': '四分円(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 475,\n",
+       "    'name': '半円(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 477,\n",
+       "    'name': '五角形(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 479,\n",
+       "    'name': '六角形(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 481,\n",
+       "    'name': '穴あき六角形(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 483,\n",
+       "    'name': '八角形(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 490,\n",
+       "    'name': '頭(通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 740,\n",
+       "    'name': '平面（通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 965,\n",
+       "    'name': '輪(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 966,\n",
+       "    'name': 'カプセル(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 969,\n",
+       "    'name': '正台形(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1097,\n",
+       "    'name': '山型多角形1(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1098,\n",
+       "    'name': '山型多角形2(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1099,\n",
+       "    'name': '長六角形(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1100,\n",
+       "    'name': '長五角形（通常）',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1101,\n",
+       "    'name': '歪み三角柱(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1102,\n",
+       "    'name': 'マウス型右(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1103,\n",
+       "    'name': 'マウス型左(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1119,\n",
+       "    'name': '三角横台形(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1120,\n",
+       "    'name': '五角横台形(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1121,\n",
+       "    'name': '円形横台形(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1122,\n",
+       "    'name': 'ドロップ立体(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1123,\n",
+       "    'name': 'ドロップ平面(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1124,\n",
+       "    'name': 'ひょうたん立体(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1125,\n",
+       "    'name': 'ひょうたん平面(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1172,\n",
+       "    'name': '角リング(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1173,\n",
+       "    'name': '立体半円(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1174,\n",
+       "    'name': '立体四半円(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1175,\n",
+       "    'name': '角型(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1176,\n",
+       "    'name': '直角形(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1177,\n",
+       "    'name': '斜ひし形(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1178,\n",
+       "    'name': '歪み台形(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1179,\n",
+       "    'name': '欠け四角(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1180,\n",
+       "    'name': '二対多角形(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1181,\n",
+       "    'name': 'ヒレ型(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1182,\n",
+       "    'name': '歪み多角形(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1183,\n",
+       "    'name': '角なし斜ひし形(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1184,\n",
+       "    'name': '角なし歪み台形(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1185,\n",
+       "    'name': '角なし四角錐(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1186,\n",
+       "    'name': '角なし三角(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1187,\n",
+       "    'name': '角なし四角(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1188,\n",
+       "    'name': '筒四分(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1240,\n",
+       "    'name': '半ピラミッド(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1241,\n",
+       "    'name': '角なし半四角錐(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1242,\n",
+       "    'name': '半コーン(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1243,\n",
+       "    'name': '階段型(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 1244,\n",
+       "    'name': '半カプセル(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 2393,\n",
+       "    'name': '半リング(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 2394,\n",
+       "    'name': '四分リング(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 2395,\n",
+       "    'name': '細リング(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 2396,\n",
+       "    'name': '半細リング(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 2397,\n",
+       "    'name': '四分細リング(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 2421,\n",
+       "    'name': 'インフィニティー(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 2422,\n",
+       "    'name': '半インフィニティー(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 2423,\n",
+       "    'name': 'ダンベル(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 2424,\n",
+       "    'name': 'ダンベル立体(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 2425,\n",
+       "    'name': 'ドットハート(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 2426,\n",
+       "    'name': 'ブロック1(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 2427,\n",
+       "    'name': 'ブロック2(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 2428,\n",
+       "    'name': 'ブロック3(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 2429,\n",
+       "    'name': 'ブロック4(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 2430,\n",
+       "    'name': 'ブロック5(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 2431,\n",
+       "    'name': '砂時計(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 2481,\n",
+       "    'name': 'はぐるま1(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 2482,\n",
+       "    'name': 'はぐるま2(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 2483,\n",
+       "    'name': 'はぐるま3(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 2484,\n",
+       "    'name': 'はぐるま4(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 2485,\n",
+       "    'name': 'シュリケン1(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 2486,\n",
+       "    'name': 'シュリケン2(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 2487,\n",
+       "    'name': '十字型(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 2488,\n",
+       "    'name': '正十二面体(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}},\n",
+       "   {'id': 2489,\n",
+       "    'name': '正二十面体(通常)',\n",
+       "    'properties': {'isAnime': False,\n",
+       "     'isScale': True,\n",
+       "     'isEmission': False,\n",
+       "     'isGlass': False,\n",
+       "     'hasColor': True,\n",
+       "     'hasPattern': True,\n",
+       "     'colorSlots': 3,\n",
+       "     'patternSlots': 3,\n",
+       "     'childRoot': '',\n",
+       "     'bones': 0}}]}}"
+      ]
+     },
+     "execution_count": 9,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "payload = {\n",
+    "    \"type\": \"item\",\n",
+    "    \"command\": \"list-category\",\n",
+    "    \"groupId\": 0,\n",
+    "    \"categoryId\": 0,\n",
+    "}\n",
+    "await websocket_test(payload, quiet=True)"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": ".venv",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.12.5"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 4
+}
diff --git a/src/KKStudioSocket.Core/Commands/ItemCommandHandler.cs b/src/KKStudioSocket.Core/Commands/ItemCommandHandler.cs
new file mode 100644
index 0000000..d561579
--- /dev/null
+++ b/src/KKStudioSocket.Core/Commands/ItemCommandHandler.cs
@@ -0,0 +1,425 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using WebSocketSharp;
+using Newtonsoft.Json;
+using Studio;
+
+namespace KKStudioSocket.Commands
+{
+    public class ItemCommandHandler : BaseCommandHandler
+    {
+        public ItemCommandHandler(System.Action<string> sendCallback) : base(sendCallback) { }
+        
+        public void Handle(ItemCommand cmd)
+        {
+            ApplyItemCommand(cmd);
+        }
+
+        private void ApplyItemCommand(ItemCommand cmd)
+        {
+            try
+            {
+                switch (cmd.command?.ToLower())
+                {
+                    case "list-groups":
+                        HandleListGroups(cmd);
+                        break;
+                    case "list-group":
+                        HandleListGroup(cmd);
+                        break;
+                    case "list-category":
+                        HandleListCategory(cmd);
+                        break;
+                    case "catalog":
+                        HandleCatalog(cmd);
+                        break;
+                    default:
+                        KKStudioSocketPlugin.Logger.LogWarning($"Unsupported item command: {cmd.command}");
+                        SendErrorResponse($"Unsupported item command: {cmd.command}");
+                        break;
+                }
+            }
+            catch (Exception ex)
+            {
+                KKStudioSocketPlugin.Logger.LogError($"Item command error: {ex.Message}");
+                SendErrorResponse($"Item command error: {ex.Message}");
+            }
+        }
+
+        private void HandleListGroups(ItemCommand cmd)
+        {
+            try
+            {
+                var groups = GetItemGroups();
+                
+                var response = new
+                {
+                    type = "success",
+                    command = "list-groups",
+                    data = groups
+                };
+
+                Send(JsonConvert.SerializeObject(response));
+                KKStudioSocketPlugin.Logger.LogDebug($"Item groups retrieved: {groups.Count} groups");
+            }
+            catch (Exception ex)
+            {
+                KKStudioSocketPlugin.Logger.LogError($"List groups error: {ex.Message}");
+                SendErrorResponse($"List groups error: {ex.Message}");
+            }
+        }
+
+        private void HandleListGroup(ItemCommand cmd)
+        {
+            try
+            {
+                if (cmd.groupId < 0)
+                {
+                    SendErrorResponse("Group ID is required and must be non-negative");
+                    return;
+                }
+
+                var groupData = GetGroupData(cmd.groupId);
+                if (groupData == null)
+                {
+                    SendErrorResponse($"Group with ID {cmd.groupId} not found");
+                    return;
+                }
+
+                var response = new
+                {
+                    type = "success", 
+                    command = "list-group",
+                    groupId = cmd.groupId,
+                    data = groupData
+                };
+
+                Send(JsonConvert.SerializeObject(response));
+                KKStudioSocketPlugin.Logger.LogDebug($"Group {cmd.groupId} data retrieved");
+            }
+            catch (Exception ex)
+            {
+                KKStudioSocketPlugin.Logger.LogError($"List group error: {ex.Message}");
+                SendErrorResponse($"List group error: {ex.Message}");
+            }
+        }
+
+        private void HandleListCategory(ItemCommand cmd)
+        {
+            try
+            {
+                if (cmd.groupId < 0 || cmd.categoryId < 0)
+                {
+                    SendErrorResponse("Both group ID and category ID are required and must be non-negative");
+                    return;
+                }
+
+                var categoryData = GetCategoryData(cmd.groupId, cmd.categoryId);
+                if (categoryData == null)
+                {
+                    SendErrorResponse($"Category {cmd.categoryId} in group {cmd.groupId} not found");
+                    return;
+                }
+
+                var response = new
+                {
+                    type = "success",
+                    command = "list-category", 
+                    groupId = cmd.groupId,
+                    categoryId = cmd.categoryId,
+                    data = categoryData
+                };
+
+                Send(JsonConvert.SerializeObject(response));
+                KKStudioSocketPlugin.Logger.LogDebug($"Category {cmd.categoryId} in group {cmd.groupId} data retrieved");
+            }
+            catch (Exception ex)
+            {
+                KKStudioSocketPlugin.Logger.LogError($"List category error: {ex.Message}");
+                SendErrorResponse($"List category error: {ex.Message}");
+            }
+        }
+
+        private void HandleCatalog(ItemCommand cmd)
+        {
+            try
+            {
+                var catalog = BuildItemCatalog();
+                var jsonResponse = JsonConvert.SerializeObject(catalog);
+                
+                KKStudioSocketPlugin.Logger.LogDebug($"Item catalog retrieved with {catalog.Count} groups");
+                Send(jsonResponse);
+            }
+            catch (Exception ex)
+            {
+                KKStudioSocketPlugin.Logger.LogError($"Item catalog retrieval error: {ex.Message}");
+                SendErrorResponse($"Item catalog retrieval error: {ex.Message}");
+            }
+        }
+
+        private List<object> BuildItemCatalog()
+        {
+            var catalog = new List<object>();
+            
+            // Get singleton Info instance
+            var info = Singleton<Info>.Instance;
+            if (info?.dicItemGroupCategory == null)
+            {
+                KKStudioSocketPlugin.Logger.LogWarning("Item group category dictionary is null");
+                return catalog;
+            }
+
+            // Iterate through all groups
+            foreach (var groupPair in info.dicItemGroupCategory)
+            {
+                int groupId = groupPair.Key;
+                var groupInfo = groupPair.Value;
+                
+                var groupData = new
+                {
+                    id = groupId,
+                    name = groupInfo.name,
+                    type = "group",
+                    categories = BuildCategoriesForGroup(groupId, groupInfo)
+                };
+                
+                catalog.Add(groupData);
+            }
+            
+            return catalog;
+        }
+
+        private List<object> BuildCategoriesForGroup(int groupId, Info.GroupInfo groupInfo)
+        {
+            var categories = new List<object>();
+            
+            if (groupInfo.dicCategory == null)
+            {
+                return categories;
+            }
+
+            // Iterate through categories in this group
+            foreach (var categoryPair in groupInfo.dicCategory)
+            {
+                int categoryId = categoryPair.Key;
+                string categoryName = categoryPair.Value;
+                
+                var categoryData = new
+                {
+                    id = categoryId,
+                    name = categoryName,
+                    type = "category",
+                    items = BuildItemsForCategory(groupId, categoryId)
+                };
+                
+                categories.Add(categoryData);
+            }
+            
+            return categories;
+        }
+
+        private List<object> BuildItemsForCategory(int groupId, int categoryId)
+        {
+            var items = new List<object>();
+            
+            var info = Singleton<Info>.Instance;
+            
+            // Check if this group/category combination exists in dicItemLoadInfo
+            if (info?.dicItemLoadInfo == null || 
+                !info.dicItemLoadInfo.ContainsKey(groupId) ||
+                !info.dicItemLoadInfo[groupId].ContainsKey(categoryId))
+            {
+                return items;
+            }
+
+            // Iterate through items in this category
+            foreach (var itemPair in info.dicItemLoadInfo[groupId][categoryId])
+            {
+                int itemId = itemPair.Key;
+                var itemInfo = itemPair.Value;
+                
+                var itemData = new
+                {
+                    id = itemId,
+                    name = itemInfo.name,
+                    type = "item",
+                    groupId = groupId,
+                    categoryId = categoryId,
+                    properties = new
+                    {
+                        isAnime = itemInfo.isAnime,
+                        isScale = itemInfo.isScale,
+                        isEmission = itemInfo.isEmission,
+                        isGlass = itemInfo.isGlass,
+                        hasColor = itemInfo.isColor,
+                        hasPattern = itemInfo.isPattren,
+                        colorSlots = itemInfo.color?.Length ?? 0,
+                        patternSlots = itemInfo.pattren?.Length ?? 0,
+                        childRoot = itemInfo.childRoot,
+                        bones = itemInfo.bones?.Count ?? 0
+                    },
+                    file = new
+                    {
+                        manifest = itemInfo.manifest,
+                        bundlePath = itemInfo.bundlePath,
+                        fileName = itemInfo.fileName
+                    }
+                };
+                
+                items.Add(itemData);
+            }
+            
+            return items;
+        }
+
+        private List<object> GetItemGroups()
+        {
+            var groups = new List<object>();
+            
+            var info = Singleton<Info>.Instance;
+            if (info?.dicItemGroupCategory == null)
+            {
+                return groups;
+            }
+
+            foreach (var groupPair in info.dicItemGroupCategory)
+            {
+                int groupId = groupPair.Key;
+                var groupInfo = groupPair.Value;
+                
+                var groupData = new
+                {
+                    id = groupId,
+                    name = groupInfo.name,
+                    categoryCount = groupInfo.dicCategory?.Count ?? 0
+                };
+                
+                groups.Add(groupData);
+            }
+            
+            return groups.OrderBy(g => {
+                var obj = g.GetType().GetProperty("id").GetValue(g, null);
+                return (int)obj;
+            }).ToList();
+        }
+
+        private object GetGroupData(int groupId)
+        {
+            var info = Singleton<Info>.Instance;
+            if (info?.dicItemGroupCategory == null || !info.dicItemGroupCategory.ContainsKey(groupId))
+            {
+                return null;
+            }
+
+            var groupInfo = info.dicItemGroupCategory[groupId];
+            var categories = new List<object>();
+
+            if (groupInfo.dicCategory != null)
+            {
+                foreach (var categoryPair in groupInfo.dicCategory)
+                {
+                    int categoryId = categoryPair.Key;
+                    string categoryName = categoryPair.Value;
+                    
+                    // Count items in this category
+                    int itemCount = 0;
+                    if (info.dicItemLoadInfo?.ContainsKey(groupId) == true && 
+                        info.dicItemLoadInfo[groupId]?.ContainsKey(categoryId) == true)
+                    {
+                        itemCount = info.dicItemLoadInfo[groupId][categoryId].Count;
+                    }
+
+                    var categoryData = new
+                    {
+                        id = categoryId,
+                        name = categoryName,
+                        itemCount = itemCount
+                    };
+                    
+                    categories.Add(categoryData);
+                }
+            }
+
+            return new
+            {
+                id = groupId,
+                name = groupInfo.name,
+                categories = categories.OrderBy(c => {
+                    var obj = c.GetType().GetProperty("id").GetValue(c, null);
+                    return (int)obj;
+                }).ToList()
+            };
+        }
+
+        private object GetCategoryData(int groupId, int categoryId)
+        {
+            var info = Singleton<Info>.Instance;
+            
+            // Check if group/category combination exists
+            if (info?.dicItemLoadInfo == null || 
+                !info.dicItemLoadInfo.ContainsKey(groupId) ||
+                !info.dicItemLoadInfo[groupId].ContainsKey(categoryId))
+            {
+                return null;
+            }
+
+            var items = new List<object>();
+
+            foreach (var itemPair in info.dicItemLoadInfo[groupId][categoryId])
+            {
+                int itemId = itemPair.Key;
+                var itemInfo = itemPair.Value;
+                
+                var itemData = new
+                {
+                    id = itemId,
+                    name = itemInfo.name,
+                    properties = new
+                    {
+                        isAnime = itemInfo.isAnime,
+                        isScale = itemInfo.isScale,
+                        isEmission = itemInfo.isEmission,
+                        isGlass = itemInfo.isGlass,
+                        hasColor = itemInfo.isColor,
+                        hasPattern = itemInfo.isPattren,
+                        colorSlots = itemInfo.color?.Length ?? 0,
+                        patternSlots = itemInfo.pattren?.Length ?? 0,
+                        childRoot = itemInfo.childRoot,
+                        bones = itemInfo.bones?.Count ?? 0
+                    }
+                };
+                
+                items.Add(itemData);
+            }
+
+            // Get category name
+            string categoryName = "";
+            if (info.dicItemGroupCategory?.ContainsKey(groupId) == true)
+            {
+                var groupInfo = info.dicItemGroupCategory[groupId];
+                if (groupInfo.dicCategory?.ContainsKey(categoryId) == true)
+                {
+                    categoryName = groupInfo.dicCategory[categoryId];
+                }
+            }
+
+            return new
+            {
+                id = categoryId,
+                name = categoryName,
+                groupId = groupId,
+                items = items.OrderBy(i => {
+                    var obj = i.GetType().GetProperty("id").GetValue(i, null);
+                    return (int)obj;
+                }).ToList()
+            };
+        }
+        
+        private void SendErrorResponse(string message)
+        {
+            var response = new { type = "error", message = message };
+            Send(JsonConvert.SerializeObject(response));
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/KKStudioSocket.Core/KKStudioSocket.Core.projitems b/src/KKStudioSocket.Core/KKStudioSocket.Core.projitems
index 89811d2..d8633ba 100644
--- a/src/KKStudioSocket.Core/KKStudioSocket.Core.projitems
+++ b/src/KKStudioSocket.Core/KKStudioSocket.Core.projitems
@@ -19,5 +19,6 @@
     <Compile Include="$(MSBuildThisFileDirectory)Commands\HierarchyCommandHandler.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Commands\DeleteCommandHandler.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Commands\CameraCommandHandler.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)Commands\ItemCommandHandler.cs" />
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/src/KKStudioSocket.Core/KKStudioSocketPlugin.cs b/src/KKStudioSocket.Core/KKStudioSocketPlugin.cs
index 0eb2ffe..230023f 100644
--- a/src/KKStudioSocket.Core/KKStudioSocketPlugin.cs
+++ b/src/KKStudioSocket.Core/KKStudioSocketPlugin.cs
@@ -149,6 +149,21 @@ protected override void OnMessage(MessageEventArgs e)
                         KKStudioSocketPlugin.Logger.LogDebug("Tree handler executed");
                         break;
 
+                    case "item":
+                        KKStudioSocketPlugin.Logger.LogDebug("Handling item command");
+                        var itemCmd = JsonConvert.DeserializeObject<ItemCommand>(e.Data);
+                        if (itemCmd != null)
+                        {
+                            var itemHandler = new ItemCommandHandler(Send);
+                            itemHandler.Handle(itemCmd);
+                        }
+                        else
+                        {
+                            KKStudioSocketPlugin.Logger.LogWarning("Failed to parse item command");
+                        }
+                        KKStudioSocketPlugin.Logger.LogDebug("Item handler executed");
+                        break;
+
                     case "update":
                         var updateCmd = JsonConvert.DeserializeObject<UpdateCommand>(e.Data);
                         if (updateCmd != null)
@@ -316,4 +331,12 @@ public class CameraCommand : BaseCommand
         public int cameraId; // For switching to specific camera object
     }
 
+    [Serializable]
+    public class ItemCommand : BaseCommand
+    {
+        public string command;
+        public int groupId = -1;
+        public int categoryId = -1;
+    }
+
 }
\ No newline at end of file