diff --git a/src/photools3/__init__.py b/src/photools3/__init__.py
index 2ca297a..4de025a 100644
--- a/src/photools3/__init__.py
+++ b/src/photools3/__init__.py
@@ -1,4 +1,5 @@
 from .cli import app
 
+
 def main():
     app()
diff --git a/src/photools3/cli.py b/src/photools3/cli.py
index 023c9e3..2071050 100644
--- a/src/photools3/cli.py
+++ b/src/photools3/cli.py
@@ -1,5 +1,5 @@
 from pathlib import Path
-from typing import Any, Optional
+from typing import Annotated, Any
 
 import typer
 
@@ -8,10 +8,11 @@ from photools3.photo import Photo
 
 app = typer.Typer(help="PhotoTools3: A CLI for image processing.")
 
+
 @app.callback(invoke_without_command=True)
 def main(
     ctx: typer.Context,
-    version: Optional[bool] = typer.Option(None, "--version", is_eager=True),
+    version: bool | None = typer.Option(None, "--version", is_eager=True),
 ):
     """
     Main entry point for PhotoTools3 CLI.
@@ -24,8 +25,11 @@ def main(
         typer.echo(ctx.get_help())
         raise typer.Exit()
 
+
 @app.command("keywords")
-def keywords(file_path: Path = typer.Argument(..., help="Path to the image file")):
+def keywords(
+    file_path: Annotated[Path, typer.Argument(..., help="Path to the image file")],
+):
     """Extract keywords from a single image."""
     if not file_path.exists():
         typer.echo(f"Error: File '{file_path}' does not exist.", err=True)
@@ -35,16 +39,18 @@ def keywords(file_path: Path = typer.Argument(..., help="Path to the image file"
         typer.echo(f"Processing: {file_path}")
         result = _run_keywords_extraction(file_path)
         _print_results(result)
-    except Exception as e:
+    except Exception as e:  # noqa: BLE001
         typer.echo(f"Error processing image: {e}", err=True)
         raise typer.Exit(code=1)
 
+
 def _run_keywords_extraction(file_path: Path) -> Any:
     """Handles the core logic of loading the photo and calling the LLM."""
     session = LlmSessionCaptionsAndKeywords()
     photo = Photo(file_path)
     return session.call([photo])
 
+
 def _print_results(result: Any) -> None:
     """Formats and prints the extraction results to the console."""
     typer.echo("\n--- Results ---")
@@ -57,5 +63,6 @@ def _print_results(result: Any) -> None:
         typer.echo(str(result))
     typer.echo("---------------")
 
+
 if __name__ == "__main__":
     app()