.cursorrules

[Naming Conventions and Interface Standards]
- DataFrame Parameter Names
  * Use 'df' instead of 'data' for DataFrame parameters
  * Example: def __init__(self, df: Optional[pd.DataFrame] = None)

- Column Names
  * Use '$' prefix for OHLCV columns: '$open', '$high', '$low', '$close', '$volume'
  * Standardize technical indicator names without '$' prefix: 'RSI', 'MACD', etc.

- Fee Parameters
  * Use 'trading_fee' consistently (not 'transaction_fee')
  * Default value should be 0.001 (0.1%)

- Environment Parameters
  * window_size: Number of time steps in observation window
  * initial_balance: Starting account balance
  * max_position_size: Maximum allowed position size

[Code Organization]
- Class Initialization
  * Always initialize logger in __init__
  * Example: self.logger = logging.getLogger(self.__class__.__name__)
  * Validate required parameters before use

- Data Handling
  * Convert column names automatically if needed
  * Validate required columns exist
  * Handle missing data appropriately

[Testing Standards]
- Data Creation
  * Use consistent test data creation methods
  * Include all required OHLCV columns with '$' prefix
  * Add relevant technical indicators for full testing

- Configuration
  * Use consistent parameter names in test configs
  * Match parameter names with environment variables