Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
CompactionArea: what it touches
ImprovementsKind: in v2.1.280,
ImprovementsSection of the release
What
When Claude Code builds conversation messages and records for compaction (the process that summarizes older conversation history to save space), it now includes a usage field whenever that data is available. This carries token usage information alongside the message or compaction record itself.
Why
Attaching usage data directly to messages and compaction records means token consumption can be tracked more precisely at the point it happens, rather than being inferred separately.
