You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
Background TasksArea: what it touches
ImprovementsKind: in v2.1.247,
ImprovementsSection of the release
What
When Claude Code fails to write a background task's output to its on-disk buffer, it inserts a visible placeholder line so the transcript shows an explicit gap rather than text that just looks cut short.
Details
The first write failure puts the marker at the front of the buffer and latches, so the note appears once rather than per failed write.
Once more than 16 MB of unwritten output has piled up, it logs at error level, discards the pending output and keeps only the marker.
Evidence
[output omitted: it could not be written to disk]
Strings lifted out of the shipped bundle, so the claim above can be checked against them.