diff --git a/falyx/action/action_group.py b/falyx/action/action_group.py
index 2608705..f3140bd 100644
--- a/falyx/action/action_group.py
+++ b/falyx/action/action_group.py
@@ -1,3 +1,5 @@
+# Falyx CLI Framework — (c) 2025 rtj.dev LLC — MIT Licensed
+"""action_group.py"""
 import asyncio
 import random
 from typing import Any, Callable
diff --git a/falyx/action/chained_action.py b/falyx/action/chained_action.py
index a3199a3..57ec8cf 100644
--- a/falyx/action/chained_action.py
+++ b/falyx/action/chained_action.py
@@ -1,3 +1,5 @@
+# Falyx CLI Framework — (c) 2025 rtj.dev LLC — MIT Licensed
+"""chained_action.py"""
 from __future__ import annotations
 
 from typing import Any, Callable
diff --git a/falyx/action/fallback_action.py b/falyx/action/fallback_action.py
index aa37349..2db6c84 100644
--- a/falyx/action/fallback_action.py
+++ b/falyx/action/fallback_action.py
@@ -1,3 +1,5 @@
+# Falyx CLI Framework — (c) 2025 rtj.dev LLC — MIT Licensed
+"""fallback_action.py"""
 from functools import cached_property
 from typing import Any
 
diff --git a/falyx/action/literal_input_action.py b/falyx/action/literal_input_action.py
index 5d1fe2f..99ec3be 100644
--- a/falyx/action/literal_input_action.py
+++ b/falyx/action/literal_input_action.py
@@ -1,3 +1,5 @@
+# Falyx CLI Framework — (c) 2025 rtj.dev LLC — MIT Licensed
+"""literal_input_action.py"""
 from __future__ import annotations
 
 from functools import cached_property
diff --git a/falyx/action/mixins.py b/falyx/action/mixins.py
index e7f8ea8..da9d615 100644
--- a/falyx/action/mixins.py
+++ b/falyx/action/mixins.py
@@ -1,3 +1,5 @@
+# Falyx CLI Framework — (c) 2025 rtj.dev LLC — MIT Licensed
+"""mixins.py"""
 from falyx.action.base import BaseAction
 
 
diff --git a/falyx/action/process_action.py b/falyx/action/process_action.py
index 7f778a3..d711ec6 100644
--- a/falyx/action/process_action.py
+++ b/falyx/action/process_action.py
@@ -1,3 +1,5 @@
+# Falyx CLI Framework — (c) 2025 rtj.dev LLC — MIT Licensed
+"""process_action.py"""
 from __future__ import annotations
 
 import asyncio
diff --git a/falyx/action/process_pool_action.py b/falyx/action/process_pool_action.py
index d9665dd..027eb6c 100644
--- a/falyx/action/process_pool_action.py
+++ b/falyx/action/process_pool_action.py
@@ -1,3 +1,5 @@
+# Falyx CLI Framework — (c) 2025 rtj.dev LLC — MIT Licensed
+"""process_pool_action.py"""
 from __future__ import annotations
 
 import asyncio
diff --git a/falyx/action/shell_action.py b/falyx/action/shell_action.py
index c41ffc5..4b9a946 100644
--- a/falyx/action/shell_action.py
+++ b/falyx/action/shell_action.py
@@ -1,4 +1,6 @@
-"""shell_action.py - Execute shell commands with input substitution."""
+# Falyx CLI Framework — (c) 2025 rtj.dev LLC — MIT Licensed
+"""shell_action.py
+Execute shell commands with input substitution."""
 
 from __future__ import annotations
 
diff --git a/falyx/action/types.py b/falyx/action/types.py
index 6b1a829..bc43b63 100644
--- a/falyx/action/types.py
+++ b/falyx/action/types.py
@@ -1,3 +1,5 @@
+# Falyx CLI Framework — (c) 2025 rtj.dev LLC — MIT Licensed
+"""types.py"""
 from __future__ import annotations
 
 from enum import Enum
diff --git a/falyx/action/user_input_action.py b/falyx/action/user_input_action.py
index 80b3fcc..73c2cbc 100644
--- a/falyx/action/user_input_action.py
+++ b/falyx/action/user_input_action.py
@@ -1,3 +1,5 @@
+# Falyx CLI Framework — (c) 2025 rtj.dev LLC — MIT Licensed
+"""user_input_action.py"""
 from prompt_toolkit import PromptSession
 from prompt_toolkit.validation import Validator
 from rich.console import Console
diff --git a/falyx/command.py b/falyx/command.py
index 9a8172c..a9e4cc9 100644
--- a/falyx/command.py
+++ b/falyx/command.py
@@ -34,7 +34,7 @@ from falyx.execution_registry import ExecutionRegistry as er
 from falyx.hook_manager import HookManager, HookType
 from falyx.logger import logger
 from falyx.options_manager import OptionsManager
-from falyx.parser.argparse import CommandArgumentParser
+from falyx.parser.command_argument_parser import CommandArgumentParser
 from falyx.parser.signature import infer_args_from_func
 from falyx.prompt_utils import confirm_async, should_prompt_user
 from falyx.protocols import ArgParserProtocol
diff --git a/falyx/parser/argument.py b/falyx/parser/argument.py
index 1f23b52..e3d3e04 100644
--- a/falyx/parser/argument.py
+++ b/falyx/parser/argument.py
@@ -1,3 +1,5 @@
+# Falyx CLI Framework — (c) 2025 rtj.dev LLC — MIT Licensed
+"""argument.py"""
 from dataclasses import dataclass
 from typing import Any
 
diff --git a/falyx/parser/argument_action.py b/falyx/parser/argument_action.py
index fb5ea2c..4964f48 100644
--- a/falyx/parser/argument_action.py
+++ b/falyx/parser/argument_action.py
@@ -1,3 +1,5 @@
+# Falyx CLI Framework — (c) 2025 rtj.dev LLC — MIT Licensed
+"""argument_action.py"""
 from __future__ import annotations
 
 from enum import Enum
diff --git a/falyx/parser/command_argument_parser.py b/falyx/parser/command_argument_parser.py
index a16163e..58bff85 100644
--- a/falyx/parser/command_argument_parser.py
+++ b/falyx/parser/command_argument_parser.py
@@ -1,4 +1,5 @@
 # Falyx CLI Framework — (c) 2025 rtj.dev LLC — MIT Licensed
+"""command_argument_parser.py"""
 from __future__ import annotations
 
 from copy import deepcopy
diff --git a/falyx/parser/signature.py b/falyx/parser/signature.py
index 525c70f..4224fbe 100644
--- a/falyx/parser/signature.py
+++ b/falyx/parser/signature.py
@@ -1,3 +1,4 @@
+# Falyx CLI Framework — (c) 2025 rtj.dev LLC — MIT Licensed
 import inspect
 from typing import Any, Callable
 
diff --git a/falyx/parser/utils.py b/falyx/parser/utils.py
index 821808d..78c507c 100644
--- a/falyx/parser/utils.py
+++ b/falyx/parser/utils.py
@@ -1,3 +1,4 @@
+# Falyx CLI Framework — (c) 2025 rtj.dev LLC — MIT Licensed
 import types
 from datetime import datetime
 from enum import EnumMeta