Update app.py

app.py

@@ -816,6 +816,7 @@ class ChessAnalysisInput(BaseModel):
     image_path: str = Field(description="Path to chess board image file")
     description: str = Field(description="Any additional context about the position (optional)", default="")
 
+@tool(args_schema=ChessAnalysisInput)
 def analyze_chess_position(image_path: str, description: str = "") -> str:
     """
     Analyzes a chess position from an image using Stockfish engine.