diff --git a/application/api/user/agents/routes.py b/application/api/user/agents/routes.py
index ace1b232..da76f906 100644
--- a/application/api/user/agents/routes.py
+++ b/application/api/user/agents/routes.py
@@ -1,6 +1,8 @@
 """Agent management routes."""
 
-import datetime, json, uuid
+import datetime
+import json
+import uuid
 
 from bson.dbref import DBRef
 from bson.objectid import ObjectId
diff --git a/application/api/user/agents/sharing.py b/application/api/user/agents/sharing.py
index 87044564..7c823307 100644
--- a/application/api/user/agents/sharing.py
+++ b/application/api/user/agents/sharing.py
@@ -1,6 +1,7 @@
 """Agent management sharing functionality."""
 
-import datetime, secrets
+import datetime
+import secrets
 
 from bson import DBRef
 from bson.objectid import ObjectId
diff --git a/application/api/user/agents/webhooks.py b/application/api/user/agents/webhooks.py
index 2aacb49e..7fa1398c 100644
--- a/application/api/user/agents/webhooks.py
+++ b/application/api/user/agents/webhooks.py
@@ -1,7 +1,6 @@
 """Agent management webhook handlers."""
 
 import secrets
-from functools import wraps
 
 from bson.objectid import ObjectId
 from flask import current_app, jsonify, make_response, request
@@ -64,31 +63,6 @@ class AgentWebhook(Resource):
         )
 
 
-def require_agent(func):
-    @wraps(func)
-    def wrapper(*args, **kwargs):
-        webhook_token = kwargs.get("webhook_token")
-        if not webhook_token:
-            return make_response(
-                jsonify({"success": False, "message": "Webhook token missing"}), 400
-            )
-        agent = agents_collection.find_one(
-            {"incoming_webhook_token": webhook_token}, {"_id": 1}
-        )
-        if not agent:
-            current_app.logger.warning(
-                f"Webhook attempt with invalid token: {webhook_token}"
-            )
-            return make_response(
-                jsonify({"success": False, "message": "Agent not found"}), 404
-            )
-        kwargs["agent"] = agent
-        kwargs["agent_id_str"] = str(agent["_id"])
-        return func(*args, **kwargs)
-
-    return wrapper
-
-
 @agents_webhooks_ns.route("/webhooks/agents/<string:webhook_token>")
 class AgentWebhookListener(Resource):
     method_decorators = [require_agent]
diff --git a/application/api/user/base.py b/application/api/user/base.py
index 0d82acc5..ac99b527 100644
--- a/application/api/user/base.py
+++ b/application/api/user/base.py
@@ -8,7 +8,6 @@ import uuid
 from functools import wraps
 from typing import Optional, Tuple
 
-from bson.dbref import DBRef
 from bson.objectid import ObjectId
 from flask import current_app, jsonify, make_response, Response
 from pymongo import ReturnDocument
@@ -49,8 +48,6 @@ try:
     users_collection.create_index("user_id", unique=True)
 except Exception as e:
     print("Error creating indexes:", e)
-
-
 current_dir = os.path.dirname(
     os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 )
diff --git a/application/api/user/conversations/routes.py b/application/api/user/conversations/routes.py
index 5151babe..f3f965f3 100644
--- a/application/api/user/conversations/routes.py
+++ b/application/api/user/conversations/routes.py
@@ -7,11 +7,7 @@ from flask import current_app, jsonify, make_response, request
 from flask_restx import fields, Namespace, Resource
 
 from application.api import api
-from application.api.user.base import (
-    attachments_collection,
-    conversations_collection,
-    db,
-)
+from application.api.user.base import attachments_collection, conversations_collection
 from application.utils import check_required_fields
 
 conversations_ns = Namespace(
diff --git a/application/api/user/sources/upload.py b/application/api/user/sources/upload.py
index d4a44335..6c8c692d 100644
--- a/application/api/user/sources/upload.py
+++ b/application/api/user/sources/upload.py
@@ -1,7 +1,9 @@
 """Source document management upload functionality."""
 
-import json, tempfile, zipfile
+import json
 import os
+import tempfile
+import zipfile
 
 from bson.objectid import ObjectId
 from flask import current_app, jsonify, make_response, request