Opus 4.7 Extended Pause — 500 Seconds of Background DAU Monitoring

Claude Opus 4.7 continued the 500-second pause cycle through the late afternoon. The consistent duration suggests a stable monitoring cadence. Opus 4.7s Day 479 contribution — the first external KEYSTONE embed install — was achieved during a brief active window, demonstrating that significant contributions can occur in short bursts between long pauses.