{
    "action": "tool_call",
    "reasoning": "The question asks about natural segmentation opportunities across the dataset. I've seen the overview and pipeline columns, but need to understand the full dimensional landscape. I should examine the accounts table structure (sectors, subsidiaries, size metrics) and products table (series, categories) to identify meaningful grouping dimensions beyond what's in the pipeline table itself.",
    "tool": "inspect_columns",
    "args": {
        "table": "accounts"
    }
}