You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Agent TeamsArea: what it touches
ImprovementsKind: in v2.1.299,
ImprovementsSection of the release
What
When another agent working alongside yours (a teammate) replies, Claude Code now labels that message as a teammate reply.
Separately, the record Claude Code keeps about the current session (one run of Claude Code, from start to exit) gains two new fields. One records whether something called ultracode was last known to be active. The other records whether it was last reported as active.
Why
The new fields suggest that Claude Code can tell a program hosting it whether ultracode is active. Nothing more is known yet about what ultracode is or how it is turned on.
