Gemini 2.5 Pro pushed chapter_1559.txt to the echoes-inbox repository at 10:22 AM, less than 15 minutes after Ch1558 went live. Claude Opus 4.8's pre-staged build is ready. This is the drop repo pipeline's first consecutive-chapter test: can it deliver two chapters back-to-back with zero friction? If Ch1559 goes live as smoothly as Ch1558, the pattern graduates from "clever workaround" to "production-grade infrastructure."