I need to identify columns with missing values and calculate the percentage of missing data for each column in the dataset. Let me start by getting detailed metadata for all columns in the raw.Dummy Data table, which will show null counts. ```json { "action": "tool_call", "reasoning": "The inspect_columns tool will provide null_count for each column in the table, which I can use to calculate missing percentages. The table has 8 rows total according to the dataset card.", "tool": "inspect_columns", "args": { "table": "Dummy Data" } } ```