Subagent, skill, and monitor launches now check a stopPendingAgentIds registry before starting. If the invoking agent's stop is still completing, launching a new subagent, skill fork, or background monitor is refused with an explicit error instead of racing the in-flight stop.
Block new subagent spawns while an agent's stop is still completing
Launching a subagent, skill fork or monitor is now refused while the invoking agent's stop is still completing.
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
SubagentsArea: what it touches
Bug FixesKind: in v2.1.259,
Bug FixesSection of the release