diff --git a/argenta/app/entity.py b/argenta/app/entity.py
index 28992c3..6e42047 100644
--- a/argenta/app/entity.py
+++ b/argenta/app/entity.py
@@ -1,5 +1,8 @@
 from typing import Callable
+from ..command.entity import Command
+from argenta.command.parse_input_command.entity import ParseInputCommand
 from ..router.entity import Router
+from ..command.parse_input_command.exceptions import InvalidInputFlagsException
 from .exceptions import (InvalidRouterInstanceException,
                          InvalidDescriptionMessagePatternException,
                          OnlyOneMainRouterIsAllowedException,
@@ -16,6 +19,7 @@ class App:
                  prompt: str = 'Enter a command',
                  initial_message: str = '\nHello, I am Argenta\n',
                  farewell_message: str = '\nGoodBye\n',
+                 invalid_input_flags_message: str = 'Invalid input flags',
                  exit_command: str = 'Q',
                  exit_command_description: str = 'Exit command',
                  exit_command_title: str = 'System points:',
@@ -33,13 +37,14 @@ class App:
         self.ignore_exit_command_register = ignore_exit_command_register
         self.farewell_message = farewell_message
         self.initial_message = initial_message
+        self.invalid_input_flags_message = invalid_input_flags_message
         self.line_separate = line_separate
         self.command_group_description_separate = command_group_description_separate
         self.ignore_command_register = ignore_command_register
         self.repeat_command_groups = repeat_command_groups
 
         self._routers: list[Router] = []
-        self._registered_router_entities: list[dict[str, str | list[dict[str, Callable[[], None] | str]] | Router]] = []
+        self._registered_router_entities: list[dict[str, str | list[dict[str, Callable[[], None] | Command]] | Router]] = []
         self._app_main_router: Router | None = None
         self._description_message_pattern: str = '[{command}] *=*=* {description}'
 
@@ -61,12 +66,21 @@ class App:
                 self._print_command_group_description()
                 self.print_func(self.prompt)
 
-            command: str = input()
+            raw_command: str = input()
+            try:
+                command: Command = ParseInputCommand(raw_command=raw_command)
+            except InvalidInputFlagsException:
+                self.print_func(self.line_separate)
+                self.print_func(self.command_group_description_separate)
+                if not self.repeat_command_groups:
+                    self.print_func(self.prompt)
+                continue
 
-            self._checking_command_for_exit_command(command)
+
+            self._checking_command_for_exit_command(command.get_string_entity())
             self.print_func(self.line_separate)
 
-            is_unknown_command: bool = self._check_is_command_unknown(command)
+            is_unknown_command: bool = self._check_is_command_unknown(command.get_string_entity())
             if is_unknown_command:
                 if not self.repeat_command_groups:
                     self.print_func(self.prompt)
@@ -124,7 +138,7 @@ class App:
         router.set_ignore_command_register(self.ignore_command_register)
         self._routers.append(router)
 
-        command_entities: list[dict[str, Callable[[], None] | str]] = router.get_command_entities()
+        command_entities: list[dict[str, Callable[[], None] | Command]] = router.get_command_entities()
         self._registered_router_entities.append({'name': router.get_name(),
                                                  'title': router.get_title(),
                                                  'entity': router,
@@ -187,10 +201,10 @@ class App:
 
 
     def _check_is_command_unknown(self, command: str):
-        registered_router_entities: list[dict[str, str | list[dict[str, Callable[[], None] | str]] | Router]] = self._registered_router_entities
+        registered_router_entities: list[dict[str, str | list[dict[str, Callable[[], None] | Command]] | Router]] = self._registered_router_entities
         for router_entity in registered_router_entities:
             for command_entity in router_entity['commands']:
-                if command_entity['command'].lower() == command.lower():
+                if command_entity['command'].get_string_entity().lower() == command.lower():
                     if self.ignore_command_register:
                         return False
                     else:
@@ -207,8 +221,8 @@ class App:
             self.print_func(router_entity['title'])
             for command_entity in router_entity['commands']:
                 self.print_func(self._description_message_pattern.format(
-                        command=command_entity['command'],
-                        description=command_entity['description']
+                        command=command_entity['command'].get_string_entity(),
+                        description=command_entity['command'].get_description()
                     )
                 )
             self.print_func(self.command_group_description_separate)
diff --git a/argenta/command/__pycache__/__init__.cpython-313.pyc b/argenta/command/__pycache__/__init__.cpython-313.pyc
new file mode 100644
index 0000000..26ac58c
Binary files /dev/null and b/argenta/command/__pycache__/__init__.cpython-313.pyc differ
diff --git a/argenta/command/__pycache__/entity.cpython-313.pyc b/argenta/command/__pycache__/entity.cpython-313.pyc
new file mode 100644
index 0000000..b4af686
Binary files /dev/null and b/argenta/command/__pycache__/entity.cpython-313.pyc differ
diff --git a/argenta/command/__pycache__/exceptions.cpython-313.pyc b/argenta/command/__pycache__/exceptions.cpython-313.pyc
new file mode 100644
index 0000000..83cd0ea
Binary files /dev/null and b/argenta/command/__pycache__/exceptions.cpython-313.pyc differ
diff --git a/argenta/command/entity.py b/argenta/command/entity.py
index fa7fd8b..61b8fb6 100644
--- a/argenta/command/entity.py
+++ b/argenta/command/entity.py
@@ -26,11 +26,14 @@ class Command:
     def get_flags(self):
         return self._flags
 
+    def set_command(self, command: str):
+        self._command = command
+
     def validate_commands_params(self):
         if not isinstance(self._command, str):
             raise InvalidCommandInstanceException(self._command)
-        if isinstance(self._description, str):
+        if not isinstance(self._description, str):
             raise InvalidDescriptionInstanceException()
-        if isinstance(self._flags, Flag) or isinstance(self._flags, FlagsGroup):
+        if not (isinstance(self._flags, Flag) or isinstance(self._flags, FlagsGroup)):
             raise InvalidFlagsInstanceException
 
diff --git a/argenta/command/params/__pycache__/__init__.cpython-313.pyc b/argenta/command/params/__pycache__/__init__.cpython-313.pyc
new file mode 100644
index 0000000..f90c4e8
Binary files /dev/null and b/argenta/command/params/__pycache__/__init__.cpython-313.pyc differ
diff --git a/argenta/command/params/flag/__pycache__/__init__.cpython-313.pyc b/argenta/command/params/flag/__pycache__/__init__.cpython-313.pyc
new file mode 100644
index 0000000..65a5e01
Binary files /dev/null and b/argenta/command/params/flag/__pycache__/__init__.cpython-313.pyc differ
diff --git a/argenta/command/params/flag/__pycache__/entity.cpython-313.pyc b/argenta/command/params/flag/__pycache__/entity.cpython-313.pyc
new file mode 100644
index 0000000..44ef5fe
Binary files /dev/null and b/argenta/command/params/flag/__pycache__/entity.cpython-313.pyc differ
diff --git a/argenta/command/params/flag/entity.py b/argenta/command/params/flag/entity.py
index ca45eca..c772a4d 100644
--- a/argenta/command/params/flag/entity.py
+++ b/argenta/command/params/flag/entity.py
@@ -11,6 +11,8 @@ class Flag:
         self.possible_flag_values = possible_flag_values
         self.ignore_flag_value_register = ignore_flag_value_register
 
+        self._value = None
+
     def get_string_entity(self):
         if self.ignore_flag_value_register:
             string_entity: str = self.flag_prefix + self.flag_name.lower()
@@ -18,6 +20,12 @@ class Flag:
             string_entity: str = self.flag_prefix + self.flag_name
         return string_entity
 
+    def get_value(self):
+        return self._value
+
+    def set_value(self, value):
+        self._value = value
+
     def validate_input_flag_value(self, input_flag_value: str):
         if self.possible_flag_values:
             if self.ignore_flag_value_register:
@@ -32,9 +40,3 @@ class Flag:
                     return False
         else:
             return True
-
-
-
-
-c = Flag('s', flag_prefix='---kinn', ignore_flag_value_register=False, possible_flag_values=['abc', 'ASW', 'eBc'])
-print(c.get_string_entity())
diff --git a/argenta/command/params/flags_group/__pycache__/__init__.cpython-313.pyc b/argenta/command/params/flags_group/__pycache__/__init__.cpython-313.pyc
new file mode 100644
index 0000000..e0f1d5f
Binary files /dev/null and b/argenta/command/params/flags_group/__pycache__/__init__.cpython-313.pyc differ
diff --git a/argenta/command/params/flags_group/__pycache__/entity.cpython-313.pyc b/argenta/command/params/flags_group/__pycache__/entity.cpython-313.pyc
new file mode 100644
index 0000000..f51981b
Binary files /dev/null and b/argenta/command/params/flags_group/__pycache__/entity.cpython-313.pyc differ
diff --git a/argenta/command/params/flags_group/entity.py b/argenta/command/params/flags_group/entity.py
index e8c798d..14e5150 100644
--- a/argenta/command/params/flags_group/entity.py
+++ b/argenta/command/params/flags_group/entity.py
@@ -1,3 +1,6 @@
+from argenta.command.params.flag.entity import Flag
+
+
 class FlagsGroup:
-    def __init__(self, flags):
+    def __init__(self, flags: list[Flag]):
         self.flags = flags
diff --git a/argenta/input_command/__init__.py b/argenta/command/parse_input_command/__init__.py
similarity index 100%
rename from argenta/input_command/__init__.py
rename to argenta/command/parse_input_command/__init__.py
diff --git a/argenta/command/parse_input_command/__pycache__/__init__.cpython-313.pyc b/argenta/command/parse_input_command/__pycache__/__init__.cpython-313.pyc
new file mode 100644
index 0000000..e4c8bb6
Binary files /dev/null and b/argenta/command/parse_input_command/__pycache__/__init__.cpython-313.pyc differ
diff --git a/argenta/command/parse_input_command/__pycache__/entity.cpython-313.pyc b/argenta/command/parse_input_command/__pycache__/entity.cpython-313.pyc
new file mode 100644
index 0000000..0ae991d
Binary files /dev/null and b/argenta/command/parse_input_command/__pycache__/entity.cpython-313.pyc differ
diff --git a/argenta/command/parse_input_command/entity.py b/argenta/command/parse_input_command/entity.py
new file mode 100644
index 0000000..5e463a3
--- /dev/null
+++ b/argenta/command/parse_input_command/entity.py
@@ -0,0 +1,38 @@
+from typing import Literal, LiteralString
+from argenta.command.entity import Command
+from argenta.command.params.flag.entity import Flag
+from argenta.command.params.flags_group.entity import FlagsGroup
+from .exceptions import InvalidInputFlagsException
+
+
+class ParseInputCommand:
+    def __new__(cls, *args, **kwargs):
+        raw_command = kwargs['raw_command']
+        return ParseInputCommand.parse(raw_command)
+
+    @staticmethod
+    def parse(raw_command: str) -> Command:
+        list_of__ = raw_command.split()
+        command = list_of__[0]
+        list_of__.pop(0)
+
+        flags = []
+        for k, _ in enumerate(list_of__):
+            if not _.startswith('-') or len( _[:len(_.lstrip('-'))]) > 3:
+                raise InvalidInputFlagsException()
+            else:
+                flag_name: str = _.lstrip('-')
+                flag_prefix = _[:len(flag_name)]
+
+                parse_flag = Flag(flag_name=flag_name,
+                                  flag_prefix=flag_prefix)
+
+                flags.append(parse_flag)
+
+        if len(flags) == 0:
+            return Command(command=command)
+        elif len(flags) == 1:
+            return Command(command=command, flags=flags[0])
+        else:
+            flags = FlagsGroup(flags=flags)
+            return Command(command=command, flags=flags)
diff --git a/argenta/command/parse_input_command/exceptions.py b/argenta/command/parse_input_command/exceptions.py
new file mode 100644
index 0000000..7dd5ebd
--- /dev/null
+++ b/argenta/command/parse_input_command/exceptions.py
@@ -0,0 +1,3 @@
+class InvalidInputFlagsException(Exception):
+    def __str__(self):
+        return "Invalid Input Flags"
diff --git a/argenta/input_command/entity.py b/argenta/input_command/entity.py
deleted file mode 100644
index 5b90617..0000000
--- a/argenta/input_command/entity.py
+++ /dev/null
@@ -1,3 +0,0 @@
-class InputCommand:
-    pass
-
diff --git a/argenta/router/entity.py b/argenta/router/entity.py
index 88515d5..31e910d 100644
--- a/argenta/router/entity.py
+++ b/argenta/router/entity.py
@@ -1,4 +1,5 @@
 from typing import Callable, Any
+from ..command.entity import Command
 from ..router.exceptions import (UnknownCommandHandlerHasAlreadyBeenCreatedException,
                                  RepeatedCommandException)
 
@@ -11,19 +12,19 @@ class Router:
         self.title = title
         self.name = name
 
-        self._command_entities: list[dict[str, Callable[[], None] | str]] = []
+        self._command_entities: list[dict[str, Callable[[], None] | Command]] = []
         self.unknown_command_func: Callable[[str], None] | None = None
         self._is_main_router: bool = False
         self.ignore_command_register: bool = False
 
 
-    def command(self, command: str, description: str = None) -> Callable[[Any],  Any]:
+    def command(self, command: Command) -> Callable[[Any],  Any]:
+        command.validate_commands_params()
         self._validate_command(command)
 
         def command_decorator(func):
             self._command_entities.append({'handler_func': func,
-                                           'command': command,
-                                           'description': description})
+                                           'command': command})
             def wrapper(*args, **kwargs):
                 return func(*args, **kwargs)
             return wrapper
@@ -42,9 +43,10 @@ class Router:
         return wrapper
 
 
-    def input_command_handler(self, input_command):
+    def input_command_handler(self, input_command: Command):
+        input_command_name: str = input_command.get_string_entity()
         for command_entity in self._command_entities:
-            if input_command.lower() == command_entity['command'].lower():
+            if input_command_name.lower() == command_entity['command'].get_string_entity():
                 if self.ignore_command_register:
                     return command_entity['handler_func']()
                 else:
@@ -56,11 +58,12 @@ class Router:
         self.unknown_command_func(unknown_command)
 
 
-    def _validate_command(self, command: str):
+    def _validate_command(self, command: Command):
+        command_name: str = command.get_string_entity()
         if command in self.get_all_commands():
             raise RepeatedCommandException()
         if self.ignore_command_register:
-            if command.lower() in [x.lower() for x in self.get_all_commands()]:
+            if command_name.lower() in [x.lower() for x in self.get_all_commands()]:
                 raise RepeatedCommandException()
 
 
@@ -74,7 +77,7 @@ class Router:
         self.ignore_command_register = ignore_command_register
 
 
-    def get_command_entities(self) -> list[dict[str, Callable[[], None] | str]]:
+    def get_command_entities(self) -> list[dict[str, Callable[[], None] | Command]]:
         return self._command_entities
 
 
@@ -103,6 +106,6 @@ class Router:
     def get_all_commands(self) -> list[str]:
         all_commands: list[str] = []
         for command_entity in self._command_entities:
-            all_commands.append(command_entity['command'])
+            all_commands.append(command_entity['command'].get_string_entity())
 
         return all_commands
diff --git a/tests/mock_app/handlers/routers.py b/tests/mock_app/handlers/routers.py
index d927fbf..6f0f4d0 100644
--- a/tests/mock_app/handlers/routers.py
+++ b/tests/mock_app/handlers/routers.py
@@ -1,4 +1,6 @@
 from rich.console import Console
+
+from argenta.command.entity import Command
 from argenta.router import Router
 
 from ..handlers.handlers_implementation.help_command import help_command
@@ -12,19 +14,19 @@ settings_router: Router = Router(title='Settings points:')
 console = Console()
 
 
-@work_router.command(command='0', description='Get Help')
+@work_router.command(command=Command(command='0', description='Get Help'))
 def command_help():
     help_command()
 
 
-@work_router.command(command='1', description='Start Solving')
+'''@work_router.command(command='1', description='Start Solving')
 def command_start_solving():
     start_solving_command()
 
 
 @settings_router.command(command='U', description='Update WordMath')
 def command_update():
-    upgrade_command()
+    upgrade_command()'''
 
 
 @work_router.unknown_command
diff --git a/tests/mock_app/main.py b/tests/mock_app/main.py
index 32937fd..810fb7a 100644
--- a/tests/mock_app/main.py
+++ b/tests/mock_app/main.py
@@ -19,14 +19,14 @@ def main():
     goodbye_message: str = f'[bold red]\n{ascii_goodbye_message}{' '*12}made by kolo\n'
 
     app.include_router(work_router, is_main=True)
-    app.include_router(settings_router)
+    #app.include_router(settings_router)
 
     app.set_initial_message(initial_greeting)
     app.set_farewell_message(goodbye_message)
 
     app.set_description_message_pattern('[bold red][{command}][/bold red] [blue]*=*=*[/blue] [bold yellow italic]{description}')
 
-    #app.start_polling()
+    app.start_polling()
 
 if __name__ == "__main__":
     main()