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8 real-time metrics in the progress panel: - Elapsed time (updates every 500ms) - Models active/total (tracks unique models as they respond) - Responses received (count) - Estimated tokens (~chars/4) - Data received (formatted KB) - SSE events (total protocol events) - Errors (turns red if > 0) - Heartbeats (keepalive count) Metrics update every 500ms during run. On completion, all metric values turn green. Magenta/purple theme for metric values, micro labels underneath. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>