{
    "action": "tool_call",
    "reasoning": "The earlier reply cannot be used because I have no tool results in evidence to back its numbers. I'll recompute missing rates (NULL or blank) per column and per month in one query.",
    "tool": "query_sql",
    "args": {
        "sql": "WITH a AS (SELECT 'January' AS m, \"Company Name\" AS c, CAST(Founded AS VARCHAR) AS f, Location AS l, Sector AS s, \"What it does\" AS w, Founders AS fo, Investor AS i, Amount AS am, Stage AS st FROM raw.\"Indian Startups _ Funding  Investors Data January 2022\" UNION ALL SELECT 'February', \"Company Name\", CAST(Founded AS VARCHAR), Location, Sector, \"What it does\", Founders, Investor, Amount, Stage FROM raw.\"Indian Startups _ Funding  Investors Data February 2022\" UNION ALL SELECT 'March', \"Company Name\", CAST(Founded AS VARCHAR), Location, Sector, \"What it does\", Founders, Investor, Amount, Stage FROM raw.\"Indian Startups _ Funding  Investors Data March 2022\" UNION ALL SELECT 'April', \"Company Name\", CAST(Founded AS VARCHAR), Location, Sector, \"What it does\", Founders, Investor, Amount, Stage FROM raw.\"Indian Startups _ Funding  Investors Data April 2022\" UNION ALL SELECT 'May', \"Company Name\", Founded, Location, Sector, \"What it does\", Founders, Investor, Amount, Stage FROM raw.\"Indian Startups _ Funding  Investors Data May 2022\") SELECT m AS month, COUNT(*) AS n_rows, ROUND(100.0*SUM(CASE WHEN c IS NULL OR TRIM(c) IN ('','[]') THEN 1 ELSE 0 END)/COUNT(*),1) AS pct_company, ROUND(100.0*SUM(CASE WHEN f IS NULL OR TRIM(f) IN ('','[]') THEN 1 ELSE 0 END)/COUNT(*),1) AS pct_founded, ROUND(100.0*SUM(CASE WHEN l IS NULL OR TRIM(l) IN ('','[]') THEN 1 ELSE 0 END)/COUNT(*),1) AS pct_location, ROUND(100.0*SUM(CASE WHEN s IS NULL OR TRIM(s) IN ('','[]') THEN 1 ELSE 0 END)/COUNT(*),1) AS pct_sector, ROUND(100.0*SUM(CASE WHEN w IS NULL OR TRIM(w) IN ('','[]') THEN 1 ELSE 0 END)/COUNT(*),1) AS pct_what_it_does, ROUND(100.0*SUM(CASE WHEN fo IS NULL OR TRIM(fo) IN ('','[]') THEN 1 ELSE 0 END)/COUNT(*),1) AS pct_founders, ROUND(100.0*SUM(CASE WHEN i IS NULL OR TRIM(i) IN ('','[]') THEN 1 ELSE 0 END)/COUNT(*),1) AS pct_investor, ROUND(100.0*SUM(CASE WHEN am IS NULL OR TRIM(am) IN ('','[]') THEN 1 ELSE 0 END)/COUNT(*),1) AS pct_amount, ROUND(100.0*SUM(CASE WHEN st IS NULL OR TRIM(st) IN ('','[]') THEN 1 ELSE 0 END)/COUNT(*),1) AS pct_stage FROM a GROUP BY ROLLUP(m) ORDER BY n_rows",
        "purpose": "Missing (NULL/blank) rate per column per month and overall"
    }
}