{
    "action": "tool_call",
    "reasoning": "Check whether the inferred key (WEBSITE, YEAR, PAGE URL) has duplicate rows, and show examples of the repeated keys.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT WEBSITE, YEAR, \"PAGE URL\", COUNT(*) AS n, MIN(\"PAGE VIEWS\") AS min_views, MAX(\"PAGE VIEWS\") AS max_views, COUNT(DISTINCT _source_file) AS files FROM raw.Website_Analytics GROUP BY WEBSITE, YEAR, \"PAGE URL\" HAVING COUNT(*) > 1 ORDER BY n DESC, max_views DESC LIMIT 25",
        "purpose": "Show examples of rows sharing the same WEBSITE, YEAR, PAGE URL key",
        "source": "raw"
    }
}