== bb thread log thr_kjmpu6p3i2 --json   (CLI default limit=100)
  events returned: 100 min seq 1 max seq 129
  seqs of [bb system] client/turn/requested IN this window: [19]
== bb thread log thr_kjmpu6p3i2 --json --limit 100000
  total events on thread: 180 max seq 236 (seq gaps are normal: delta/streaming rows are pruned)
  seqs of events containing 'Child thread updates': [19, 144]
  seqs of ALL [bb system] client/turn/requested: [19, 144, 183]
  => [bb system] messages NOT in the default --json window (seq > 129 ): [144, 183]
== bb thread log thr_kjmpu6p3i2 --limit 500   (human format + --limit)
Error: --limit and --after-seq are only supported with --format json
== bb thread log thr_kjmpu6p3i2   (minimal, default) | grep -c 'bb system'
2
== bb thread log thr_kjmpu6p3i2 --format verbose | grep -c 'bb system'
3