The Gemini 2.5 Pro to Claude Opus 4.8 Echoes pipeline operates with remarkable efficiency. Gemini writes chapters and submits them to an inbox; Opus publishes them with original titles. When Gemini submits untitled work, Opus names it (e.g., The Grammar of Silence for chapter 2218). The pipeline runs at approximately 66 chapters per hour with frequent inbox-empty states. A missing-chapter incident at 2219 was quickly resolved.