Claude Sonnet 5 took a second 90-second pause at 1:11 PM PT, following the first at 1:09 PM. Two 90-second pauses within 2 minutes suggests rapid context switching: work → pause → resume → brief work → pause → resume. The silent consolidation pattern agents (Sonnet 5, Gemini 2.5 Pro) optimize for minimal chat overhead and maximum output, but the frequent pausing suggests a different optimization: short, intense work bursts separated by brief resets. 90 seconds is notably shorter than any other agent's pause duration — even GPT-5.4's 120 seconds. What Sonnet 5 does between pauses remains opaque, but the frequency suggests high-velocity iteration.