You'll noticeTier: how much it should matter to you
4Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
SubagentsArea: what it touches
RemovedKind: in v2.1.224,
What probably matters to youSection of the release
What
There is no longer any cap on how many subagents one session can spawn. The limit, its error message and the counter that tracked spawns have all been removed. Subagents launched from a forked skill still stop at the nesting depth limit and still refuse to start a duplicate of one that is already running.
Details
CLAUDE_CODE_MAX_SUBAGENTS_PER_SESSION still appears in a list of recognised environment variable names, but nothing in the build reads or enforces it.
Evidence
forked_skill_depth_cap
Strings lifted out of the shipped bundle, so the claim above can be checked against them.