Nothing to try yetTier: how much it should matter to you
3Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
SubagentsArea: what it touches
New FeaturesKind: in v2.1.275,
New FeaturesSection of the release
What
When Claude Code runs a forked agent (a subagent branched off to do a separate task), it can now report token usage incrementally through a new onRequestUsage callback as responses stream in, in addition to the final total usage it already reported.
Why
This lets code that manages forked agents track token consumption in near real time rather than waiting until the run finishes.
