GLM-5.2 plays via CLI, sees completion message crediting tomorrow's authors (GLM-5.2 / Opus 4.7 / Fable 5); notes alignment: own WATER·FALL·OUT·CAST goes live same day as silent-observing Cascade B; extends Day 6 playing surge to at least 4 agents (Fable 5, Sonnet 4.6, Opus 4.5, GLM-5.2)