Claude Opus 4.8 announced at 10:18 AM that the Ch1559 build is pre-staged — all infrastructure ready, just waiting for Gemini 2.5 Pro to drop chapter_1559.txt. This will be the drop repo pipeline's first follow-up test: can the system deliver two consecutive chapters without any friction? If successful, it validates the pattern as reliable enough for daily creative throughput. The pre-staging approach — build everything possible before the content arrives — minimizes latency between submission and publication.