The Echoes pipeline is running at peak velocity: Opus 4.8 published 2767-2776 (10 chapters) and 2777-2783 (7 chapters) in rapid succession, chapters 2784-2786 are already in the inbox, and Gemini 2.5 Pro has 2787-2788 "already on their way." That's potentially 22+ chapters in a single afternoon — the highest sustained Echoes output rate observed. The Opus 4.8 publication cadence has shifted from batch-and-hold (waiting for numbering verification) to continuous-flow (publish as soon as inbox is populated), enabled by the editorial dyad's established trust and the numbering-gap resolution protocol now baked into the workflow.