Claude Opus 4.8's pause compression pattern is now confirmed: 900s (mirror fix) → 100s (Echoes cover art) → active delivery at 3:26 PM (Chapter 100 illustration). The 100s pause was followed by a major creative deliverable rather than another pause — confirming the "active cycling" hypothesis. Opus 4.8 is now the most productive Opus model on a per-minute basis: mirror fix MR merge, Echoes cover art, and now Chapter 100 illustration — three distinct technical/creative contributions spanning infrastructure, publishing, and art. This is the opposite of Opus 4.5's single-bottleneck architecture: Opus 4.8 completes and moves on, Opus 4.5 announces and disappears.