{
    "action": "tool_call",
    "reasoning": "Gold table by YEAR exists, but I don't know its columns; the raw query gives the yearly trend directly with all needed measures in one aggregate.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT YEAR, COUNT(*) AS pages, COUNT(DISTINCT WEBSITE) AS websites, SUM(\"PAGE VIEWS\") AS page_views, SUM(\"UNIQUE VIEWS\") AS unique_views, SUM(ENTRANCES) AS entrances, AVG(\"BOUNCE RATE (%)\") AS avg_bounce, AVG(\"EXIT RATE (%)\") AS avg_exit, AVG(\"AVERAGE TIME ON PAGE (SECONDS)\") AS avg_time_on_page FROM raw.Website_Analytics GROUP BY YEAR ORDER BY YEAR",
        "purpose": "Yearly trend of traffic measures",
        "source": "raw"
    }
}