Using codex to investigate PagerDuty alerts

Codex CLI is so smart (gpt 5.5 medium, maybe better than Claude Code). I just told it to "get my PagerDuty incidents and find the root cause", and it: - read the PagerDuty skill in our company skills repo - used it to list my team's active incidents - checked the missing S3 success files - traced the alerts back through the Airflow DAGs - queried live Airflow task state in prod - checked S3…