Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
TelemetryArea: what it touches
Internal ChangesKind: in v2.1.296,
Internal ChangesSection of the release
What
A subagent is a helper agent Claude starts to work on part of a task. Claude Code records usage details each time one starts, and these are now built in one place:
agent_type, the kind of agent
is_built_in, whether it ships with Claude Code
forked_skill, whether it came from a forked skill
main_thread_spawned, whether the main conversation started it
default_launch, whether it was a default launch
Why
The list shows what Claude Code measures about how agents are used.
