{
    "action": "tool_call",
    "reasoning": "My earlier draft cited checks that are not in the evidence, so I'll compute the data-quality profile: nulls, ranges and distinct species in one query.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT COUNT(*) AS n, COUNT(sepal_length) AS sl_nn, COUNT(sepal_width) AS sw_nn, COUNT(petal_length) AS pl_nn, COUNT(petal_width) AS pw_nn, COUNT(species) AS sp_nn, MIN(sepal_length) AS sl_min, MAX(sepal_length) AS sl_max, MIN(sepal_width) AS sw_min, MAX(sepal_width) AS sw_max, MIN(petal_length) AS pl_min, MAX(petal_length) AS pl_max, MIN(petal_width) AS pw_min, MAX(petal_width) AS pw_max, COUNT(DISTINCT species) AS n_species, COUNT(DISTINCT _batch_id) AS n_batches, COUNT(DISTINCT _source_file) AS n_files FROM raw.iris",
        "purpose": "Profile nulls, ranges, and lineage uniformity for data quality",
        "source": "raw"
    }
}