You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
SubagentsArea: what it touches
ImprovementsKind: in v2.1.307,
ImprovementsSection of the release
What
A subagent is a separate helper that Claude starts to work on part of a task. A fork is a subagent that starts as a copy of the current conversation. Claude Code adds notices for forks. One tells a fork that it is the fork. Another says that the parent conversation's tool call is not the fork's own.
Why
The notices help a fork keep track of its role, so it does not act as if it were the conversation that started it.
