You'll noticeTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
TeammatesArea: what it touches
Internal ChangesKind: in v2.1.268,
ImprovementsSection of the release
Unclear What the definitionNotice actually contains or when it is populated is not specified.
What
resumeInProcessTeammate's return value gained a definitionNotice field, threaded through from a new parameter at the call site, alongside the existing agentId/taskId/resumedMessageCount.
When a not-running teammate (subagent) is resumed in-process, the success message shown now appends this definitionNotice text (as a space-prefixed suffix) if present, in addition to the existing text about prior messages or a missing transcript.
Why
This surfaces a warning when a teammate's underlying agent definition has changed since it last ran, so resuming it doesn't silently continue under stale assumptions about what the agent does.
How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtWhat the definitionNotice actually contains or when it is populated is not specified.
