diff --git a/src/google/adk/tools/application_integration_tool/application_integration_toolset.py b/src/google/adk/tools/application_integration_tool/application_integration_toolset.py
index e833b47934f..1bac5156f84 100644
--- a/src/google/adk/tools/application_integration_tool/application_integration_toolset.py
+++ b/src/google/adk/tools/application_integration_tool/application_integration_toolset.py
@@ -106,7 +106,7 @@ def __init__(
       *,
       allow_private_network_access: bool = False,
   ):
-    """Args:
+    """Initializes the toolset.
 
     Args:
         project: The GCP project ID.
diff --git a/src/google/adk/tools/openapi_tool/auth/credential_exchangers/oauth2_exchanger.py b/src/google/adk/tools/openapi_tool/auth/credential_exchangers/oauth2_exchanger.py
index 03783d774b2..01a1d8a9c7b 100644
--- a/src/google/adk/tools/openapi_tool/auth/credential_exchangers/oauth2_exchanger.py
+++ b/src/google/adk/tools/openapi_tool/auth/credential_exchangers/oauth2_exchanger.py
@@ -72,7 +72,6 @@ def generate_auth_token(
     """Generates an auth token from the authorization response.
 
     Args:
-        auth_scheme: The OpenID Connect or OAuth2 auth scheme.
         auth_credential: The auth credential.
 
     Returns:
diff --git a/src/google/adk/tools/openapi_tool/openapi_spec_parser/rest_api_tool.py b/src/google/adk/tools/openapi_tool/openapi_spec_parser/rest_api_tool.py
index 18dbb70b259..dca6309c6a6 100644
--- a/src/google/adk/tools/openapi_tool/openapi_spec_parser/rest_api_tool.py
+++ b/src/google/adk/tools/openapi_tool/openapi_spec_parser/rest_api_tool.py
@@ -355,7 +355,7 @@ def from_parsed_operation_str(
     """Initializes the RestApiTool from a dict.
 
     Args:
-        parsed: A dict representation of a ParsedOperation object.
+        parsed_operation_str: The JSON representation of a ParsedOperation object.
 
     Returns:
         A RestApiTool object.