Static[iterator]Static[StaticasStaticofStaticpipeStaticserviceStatictoStatictoStaticuseStaticuseReadonly~effect/ReadonlykeyStatic Readonly~effect/StaticIdentifierStatic ReadonlykeyStatic ReadonlyServiceStatic Optional Readonlystack
The process's session origin — the one process fact a launch declaration reads to choose its recorded order. A runtime layer must provide it: there is no default, so a platform that forgets it fails to compile its layer instead of silently launching a stored-session process.