diff --git a/embodichain/agents/hierarchy/agent_base.py b/embodichain/agents/hierarchy/agent_base.py
index 6b34b853..1e9ed458 100644
--- a/embodichain/agents/hierarchy/agent_base.py
+++ b/embodichain/agents/hierarchy/agent_base.py
@@ -14,13 +14,11 @@
 # limitations under the License.
 # ----------------------------------------------------------------------------
 
-from abc import ABCMeta, abstractmethod
+from abc import ABCMeta
 import os
-import cv2
-from embodichain.utils.utility import load_json, load_txt
-from embodichain.agents.mllm.prompt import *
+from embodichain.utils.utility import load_txt
+import embodichain.agents.mllm.prompt as mllm_prompt
 from embodichain.data import database_agent_prompt_dir, database_2d_dir
-from embodichain.utils.utility import encode_image
 
 
 class AgentBase(metaclass=ABCMeta):
diff --git a/embodichain/agents/hierarchy/code_agent.py b/embodichain/agents/hierarchy/code_agent.py
index 04cf24db..3aa999a0 100644
--- a/embodichain/agents/hierarchy/code_agent.py
+++ b/embodichain/agents/hierarchy/code_agent.py
@@ -18,22 +18,13 @@
 from langchain_core.prompts import ChatPromptTemplate
 import os
 import numpy as np
-import functools
-from typing import Dict, Tuple, Any
-from embodichain.toolkits.code_generation import (
-    ExecutableOutputParser,
-    OutputFormatting,
-)
-from embodichain.toolkits.toolkits import ToolkitsBase
+from typing import Dict, Tuple
 from embodichain.agents.mllm.prompt import CodePrompt
 from embodichain.data import database_agent_prompt_dir
 from pathlib import Path
 import re
 import importlib.util
-from langchain_core.messages import HumanMessage
 from datetime import datetime
-from embodichain.utils.utility import encode_image
-import base64
 
 
 def format_execution_history(execution_history):
diff --git a/embodichain/agents/hierarchy/task_agent.py b/embodichain/agents/hierarchy/task_agent.py
index a52c00e7..5f7b5403 100644
--- a/embodichain/agents/hierarchy/task_agent.py
+++ b/embodichain/agents/hierarchy/task_agent.py
@@ -18,19 +18,12 @@
 from embodichain.agents.hierarchy.agent_base import AgentBase
 from langchain_core.prompts import ChatPromptTemplate
 from embodichain.data import database_2d_dir
-from embodichain.utils.utility import load_txt, encode_image
+from embodichain.utils.utility import load_txt
 from embodichain.agents.mllm.prompt import TaskPrompt
 from embodichain.data import database_agent_prompt_dir
 from pathlib import Path
-from langchain_core.messages import HumanMessage
 import numpy as np
-
-# from openai import OpenAI
-import os
 import time
-import cv2
-import glob
-import json
 import re
 
 USEFUL_INFO = """The error may be caused by: 
diff --git a/embodichain/agents/mllm/prompt/code_prompt.py b/embodichain/agents/mllm/prompt/code_prompt.py
index 056e1fd3..845064e5 100644
--- a/embodichain/agents/mllm/prompt/code_prompt.py
+++ b/embodichain/agents/mllm/prompt/code_prompt.py
@@ -19,7 +19,7 @@
     ChatPromptTemplate,
     HumanMessagePromptTemplate,
 )
-from embodichain.utils.utility import encode_image, encode_image_from_path
+from embodichain.utils.utility import encode_image
 
 
 class CodePrompt:
diff --git a/embodichain/agents/mllm/prompt/task_prompt.py b/embodichain/agents/mllm/prompt/task_prompt.py
index 93b07b70..746e0f18 100644
--- a/embodichain/agents/mllm/prompt/task_prompt.py
+++ b/embodichain/agents/mllm/prompt/task_prompt.py
@@ -15,13 +15,12 @@
 # ----------------------------------------------------------------------------
 
 import torch
-import numpy as np
 from langchain_core.messages import SystemMessage
 from langchain_core.prompts import (
     ChatPromptTemplate,
     HumanMessagePromptTemplate,
 )
-from embodichain.utils.utility import encode_image, encode_image_from_path
+from embodichain.utils.utility import encode_image
 
 
 class TaskPrompt:
diff --git a/embodichain/toolkits/code_generation.py b/embodichain/toolkits/code_generation.py
index fcf45d04..360e9e90 100644
--- a/embodichain/toolkits/code_generation.py
+++ b/embodichain/toolkits/code_generation.py
@@ -14,11 +14,8 @@
 # limitations under the License.
 # ----------------------------------------------------------------------------
 
-from typing import List, Dict, Tuple, Any
+from typing import Dict, Tuple
 from langchain_core.output_parsers import BaseOutputParser
-from pygments import highlight
-from pygments.lexers import PythonLexer
-from pygments.formatters import TerminalFormatter
 
 import numpy as np
 
@@ -81,11 +78,6 @@ def parse(self, text: str) -> Tuple[str, Dict, Dict]:
         gvars = merge_dicts([self._fixed_vars, self.variable_vars])
         lvars = None
 
-        #
-        # banned_phrases = ["import", "__"]
-        # for phrase in banned_phrases:
-        #     assert phrase not in code_str
-
         if gvars is None:
             gvars = {}
         if lvars is None:
diff --git a/embodichain/toolkits/interfaces.py b/embodichain/toolkits/interfaces.py
index c21ba646..5d6d967f 100644
--- a/embodichain/toolkits/interfaces.py
+++ b/embodichain/toolkits/interfaces.py
@@ -14,22 +14,16 @@
 # limitations under the License.
 # ----------------------------------------------------------------------------
 
-from typing import List, Dict
 import numpy as np
-from embodichain.toolkits.toolkits import ToolkitsBase
 from embodichain.utils.logger import log_info, log_warning, log_error
 from copy import deepcopy
 from embodichain.lab.gym.utils.misc import (
     mul_linear_expand,
-    is_qpos_flip,
     get_rotation_replaced_pose,
 )
-from embodichain.toolkits.graspkit.pg_grasp.antipodal import GraspSelectMethod
-from matplotlib import pyplot as plt
 import torch
 from tqdm import tqdm
 from embodichain.lab.sim.planners.motion_generator import MotionGenerator
-from embodichain.data.enum import ControlParts, EndEffector, JointType
 from scipy.spatial.transform import Rotation as R
 from embodichain.utils.utility import encode_image
 import ast
@@ -390,7 +384,6 @@ def grasp(
     delta_xy = target_obj_pose[:2, 3] - select_arm_base_pose[:2, 3]
     dx, dy = delta_xy[0], delta_xy[1]
     aim_horizontal_angle = np.arctan2(dy, dx)
-    delta_angle = abs(select_arm_current_qpos[0] - aim_horizontal_angle)
     select_arm_aim_qpos = deepcopy(select_arm_current_qpos)
     select_arm_aim_qpos[0] = aim_horizontal_angle
 
@@ -1213,7 +1206,7 @@ def drive(
     actions = list(actions.unbind(dim=0))
     for i in tqdm(range(len(actions))):
         action = actions[i]
-        obs, reward, terminated, truncated, info = env.step(action)
+        env.step(action)
     return actions
 
 
diff --git a/embodichain/toolkits/toolkits.py b/embodichain/toolkits/toolkits.py
index 56575245..5d388fca 100644
--- a/embodichain/toolkits/toolkits.py
+++ b/embodichain/toolkits/toolkits.py
@@ -16,7 +16,6 @@
 
 from abc import ABCMeta, abstractmethod
 import os
-import cv2
 from embodichain.utils.utility import load_json