Update app.py

app.py

@@ -15,22 +15,30 @@ DEFAULT_API_URL = "https://agents-course-unit4-scoring.hf.space"
 # --- Agent Definition ---
 
 # 1. Define Your Tools
+
 @tool
 def file_reader(file_path: str) -> str:
-    """
-    Reads the content of a file at the given URL or local path and returns its text content.
-    Supports various file types like PDF, TXT, CSV, etc.
+    """Reads the content of a file and returns its text content.
+
+    This tool supports various file types like PDF, TXT, CSV, etc., from either
+    a local path or a web URL.
+
+    Args:
+        file_path (str): The local path or web URL of the file to be read.
     """
     try:
         if file_path.startswith("http://") or file_path.startswith("https://"):
             response = requests.get(file_path, timeout=20)
             response.raise_for_status()
+            # Use a temporary file to process with unstructured
             with open("temp_file", "wb") as f:
                 f.write(response.content)
             elements = partition("temp_file")
             os.remove("temp_file") # Clean up
         else:
+            # Assumes it's a local path within the Space
             elements = partition(file_path)
+
         return "\n\n".join([str(el) for el in elements])
     except Exception as e:
         return f"Error reading or processing file '{file_path}': {e}"