1 files changed, 31 insertions, 0 deletions
diff --git a/cli/src/trading_cli/commands/data.py b/cli/src/trading_cli/commands/data.py
new file mode 100644
index 0000000..1fa5e30
--- /dev/null
+++ b/cli/src/trading_cli/commands/data.py
@@ -0,0 +1,31 @@
+import click
+
+
+@click.group()
+def data():
+    """Data collection and management commands."""
+    pass
+
+
+@data.command()
+@click.option("--symbol", required=True, help="Trading symbol (e.g. BTCUSDT)")
+@click.option("--timeframe", default="1m", show_default=True, help="Candle timeframe")
+def collect(symbol, timeframe):
+    """Start collecting live market data for a symbol."""
+    click.echo(f"Starting data collection for {symbol} at {timeframe} timeframe...")
+
+
+@data.command()
+@click.option("--symbol", required=True, help="Trading symbol (e.g. BTCUSDT)")
+@click.option("--timeframe", default="1m", show_default=True, help="Candle timeframe")
+@click.option("--from", "since", default=None, help="Start date (ISO format)")
+@click.option("--limit", default=1000, show_default=True, help="Number of candles to fetch")
+def history(symbol, timeframe, since, limit):
+    """Download historical market data for a symbol."""
+    click.echo(f"Downloading {limit} {timeframe} candles for {symbol}" + (f" since {since}" if since else "") + "...")
+
+
+@data.command("list")
+def list_():
+    """List available data streams and symbols."""
+    click.echo("Fetching available data streams and collected symbols...")