Module spawn 

Sub-session spawn scheduler.

Provides a background queue for spawning child sessions. Spawn is async (tool returns immediately), but the UI can observe child progress via events forwarded to the parent session stream.

Structs

SessionInboxRuntimeBinding

Runtime-scoped durable inbox resources used by external actor drivers.

SpawnContext

SpawnJob

SpawnScheduler

Traits

ChildRunLaunchHook

Optional application-layer preparation for a child run launched through the canonical scheduler.

ExternalChildRunner

Trait for external child session runtimes (e.g. A2A, CLI adapters).