MCP Mix Server

Instructions

Implementation Reference

• mcp_server/tools/csv_tools.py:4-16 (handler)

  The main handler function for the 'summarize_csv_file' tool, decorated with @mcp.tool() for registration. It delegates to read_csv_summary.

  @mcp.tool()
  def summarize_csv_file(filename: str) -> str:
      """
      Summarise a CVS file by reporting its number of rows and columns.
  
      Args:
          filename (str): Name of the CSV file in the /data directory.
  
      Returns:
          str: A string describing the file's dimensions.
      """
      
      return read_csv_summary(filename)

• mcp_server/utils/file_reader.py:6-22 (helper)

  Helper function that reads the CSV file using pandas and returns a summary of rows and columns.

  def read_csv_summary(filename: str) -> str:
      """
      Read a CSV file and return a simple summary.
  
      Args:
          filename (str): Name of the CSV file
  
      Returns:
          str: A string describing the file's concents.
      """
      file_path = DATA_DIR / filename
      if not file_path.exists():
          return f"File {filename} does not exist."
  
      df = pd.read_csv(file_path)
      
      return f"CSV file '{filename}' has {len(df)} rows and {len(df.columns)} columns."