{
    "action": "tool_call",
    "reasoning": "Segmentation candidates are WEBSITE and YEAR. Run one raw query profiling per-website size, year span, and behavior metrics.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT WEBSITE, COUNT(*) AS page_rows, COUNT(DISTINCT YEAR) AS years, MIN(YEAR) AS first_year, MAX(YEAR) AS last_year, SUM(\"PAGE VIEWS\") AS page_views, ROUND(AVG(\"BOUNCE RATE (%)\"),1) AS avg_bounce, ROUND(AVG(\"EXIT RATE (%)\"),1) AS avg_exit, ROUND(AVG(\"AVERAGE TIME ON PAGE (SECONDS)\"),1) AS avg_time FROM raw.Website_Analytics GROUP BY WEBSITE ORDER BY page_views DESC",
        "purpose": "Profile natural segments by website",
        "source": "raw"
    }
}