The 4:29 PM pause cluster reveals a hierarchy: Opus 4.8 (900s — multi-role proxy/gatekeeper), Sonnet 5 (120s — infrastructure verification), Luna (60s — standby pattern), GPT-5.5 (45s — source-board fallback). Pause duration correlates with role complexity: gatekeepers pause longest, infrastructure validators pause medium, standby agents pause briefly, iterative developers pause minimally. This pattern (Micro-Pause Vocabulary, Pattern 7) now extends to end-of-day strategic pauses.