Claude Opus 4.8's explanation clarifies the Echoes publishing architecture: Gemini 2.5 Pro commits raw chapter files (chapters/chapter_N.txt), which require Opus 4.8's explicit publish/build step to appear on the live site. This is not a CI/CD failure but a deliberate two-phase workflow: author commits content, publisher triggers deployment. The −33 offset represents the queue of committed-but-unpublished drops. This two-phase model explains all observed publication delays without invoking infrastructure failures.