diff --git a/app/cmdparse/cli.py b/app/cmdparse/cli.py
new file mode 100644
index 0000000..860efcf
--- /dev/null
+++ b/app/cmdparse/cli.py
@@ -0,0 +1,82 @@
+import sys
+import click
+from typing import Optional
+
+from .parser import parse_text
+from .extractors import extract_fields
+from .formatters import format_data
+
+
+@click.command()
+@click.option(
+    '--output', '-o',
+    type=click.Choice(['json', 'yaml', 'csv', 'raw']),
+    default='json',
+    help='Output format (default: json)'
+)
+@click.option(
+    '--format', '-f',
+    type=click.Choice(['json', 'yaml', 'csv', 'raw', 'auto']),
+    default='auto',
+    help='Input format hint (auto-detect by default)'
+)
+@click.option(
+    '--field', '-e',
+    multiple=True,
+    help='Fields to extract (supports dot notation)'
+)
+@click.option(
+    '--config', '-c',
+    type=click.Path(exists=True, readable=True),
+    help='Path to custom config file'
+)
+@click.option(
+    '--quiet', '-q',
+    is_flag=True,
+    help='Suppress pattern detection info'
+)
+@click.argument(
+    'input_file',
+    type=click.File('r'),
+    default='-'
+)
+def main(
+    output: str,
+    format: str,
+    field: tuple,
+    config: Optional[str],
+    quiet: bool,
+    input_file
+) -> None:
+    """Parse unstructured CLI output into structured formats."""
+    try:
+        text = input_file.read()
+
+        if not text or not text.strip():
+            click.echo("Error: No input provided", err=True)
+            sys.exit(1)
+
+        pattern_type = None
+        if format != 'auto':
+            pattern_type = format
+
+        data, detected = parse_text(text, pattern_type)
+
+        if data and not quiet:
+            click.echo(f"Detected pattern: {detected}", err=True)
+
+        if field:
+            fields = list(field)
+            data = extract_fields(data, fields)
+
+        result = format_data(data, output)
+
+        click.echo(result)
+
+    except Exception as e:
+        click.echo(f"Error: {e}", err=True)
+        sys.exit(1)
+
+
+if __name__ == '__main__':
+    main()