# No prefix commands, only slash commands
command_prefix="$disabled$"  # Ensures no prefix command processing

# All commands use app_commands decorator
@app_commands.command(name="example", description="Example command")
async def example_command(self, interaction: discord.Interaction):
    pass

# Async database operations
async with self.db.async_session() as session:
    user = await session.get(User, user_id)

# Async HTTP requests
async with aiohttp.ClientSession() as session:
    async with session.get(url) as response:
        data = await response.json()

class ExampleCog(commands.Cog):
    def __init__(self, bot):
        self.bot = bot
        self.logger = structlog.get_logger(__name__)
    
    @app_commands.command()
    async def example(self, interaction: discord.Interaction):
        # Command implementation
        pass

class UtilsBot(commands.Bot):
    def __init__(self):
        # Configure intents
        intents = discord.Intents.default()
        intents.message_content = False  # Not needed for slash commands
        
        # Initialize bot
        super().__init__(
            command_prefix="$disabled$",
            intents=intents,
            help_command=None
        )

# Automatic cog loading
async def load_cogs(self):
    for filename in os.listdir('./cogs'):
        if filename.endswith('.py') and not filename.startswith('_'):
            await self.load_extension(f'cogs.{filename[:-3]}')

# Async engine setup
engine = create_async_engine(DATABASE_URL, echo=False)

# Session factory
AsyncSessionLocal = async_sessionmaker(
    engine, 
    class_=AsyncSession,
    expire_on_commit=False
)

# Context manager for sessions
async with AsyncSessionLocal() as session:
    # Database operations
    pass

def create_success_embed(title: str, description: str) -> discord.Embed:
    return discord.Embed(
        title=f"✅ {title}",
        description=description,
        color=0x00ff00
    )

def requires_whitelist():
    async def predicate(interaction: discord.Interaction) -> bool:
        return await check_user_whitelist(interaction.user.id)
    return app_commands.check(predicate)

# Typical database operation pattern
async def update_user_stats(user_id: str, command: str):
    async with self.db.async_session() as session:
        try:
            # Get or create user
            user = await get_or_create_user(session, user_id)
            
            # Update statistics
            user.total_commands_used += 1
            user.last_seen_at = datetime.utcnow()
            
            # Log command execution
            log_entry = CommandLog(
                user_discord_id=user_id,
                command_name=command,
                executed_at=datetime.utcnow()
            )
            session.add(log_entry)
            
            # Commit transaction
            await session.commit()
            
        except Exception as e:
            await session.rollback()
            raise e

# External API call pattern
async def call_external_api(endpoint: str, params: dict):
    async with aiohttp.ClientSession() as session:
        try:
            async with session.get(endpoint, params=params) as response:
                if response.status == 200:
                    return await response.json()
                else:
                    raise APIError(f"API returned {response.status}")
        except asyncio.TimeoutError:
            raise APIError("Request timed out")
        except Exception as e:
            raise APIError(f"API call failed: {e}")

# Database connection pooling
engine = create_async_engine(
    DATABASE_URL,
    pool_size=20,
    max_overflow=0,
    pool_pre_ping=True
)

# HTTP session reuse
self.http_session = aiohttp.ClientSession()

# Process multiple operations concurrently
tasks = [process_user(user) for user in users]
results = await asyncio.gather(*tasks, return_exceptions=True)

from functools import lru_cache

@lru_cache(maxsize=1000)
def get_user_permissions(user_id: str) -> dict:
    # Cached permission lookup
    pass

# Eager loading to prevent N+1 queries
query = select(User).options(selectinload(User.game_stats))
users = await session.execute(query)

# Template for new cog
class NewFeatureCog(commands.Cog):
    def __init__(self, bot):
        self.bot = bot
        self.logger = structlog.get_logger(__name__)
    
    @app_commands.command()
    async def new_command(self, interaction: discord.Interaction):
        # Implementation
        pass

async def setup(bot):
    await bot.add_cog(NewFeatureCog(bot))