Takes the slowest completed checkpoint seal in the trailing window and fires when it is at
or past the threshold, or returns null when no seal completed or all were under it. Only
sealed outcomes count — a skip or retry says nothing about how the re-derivation is scaling
with table growth, which is what this trend watches.
Takes the slowest completed checkpoint seal in the trailing window and fires when it is at or past the threshold, or returns null when no seal completed or all were under it. Only sealed outcomes count — a skip or retry says nothing about how the re-derivation is scaling with table growth, which is what this trend watches.