> head -n 16 stations_accepted.json
{
  "primary_keys": [
    "station",
    "obs_date"
  ],
  "added": [],
  "removed": [],
  "changed": [
    {
      "key": {
        "station": "S3",
        "obs_date": "2025-01-01"
      },
      "columns": [
        "pressure_hpa"
      ]
> veridelta run -c stations_rules.yaml --baseline stations_accepted.json
Loading configuration from stations_rules.yaml...
Comparing...

Veridelta Execution Summary
===========================
Status:        FAILED
Match Rate:    96.77%
Source Rows:   124
Target Rows:   124
Volume Shift:  +0 rows

Row-Level Discrepancies:
---------------------------
Added:         0
Removed:       0
Changed:       4
Total Issues:  4
Accepted:      31

Top Column-Level Drifts:
---------------------------
- temperature_c: 4 mismatches

> echo "exit code: $?"
exit code: 1
