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feat(frontend): rolling 5-round window for Alpha & Brier chart, top-5 agents - #23
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Brier score in the leaderboard time series was raw per-round, while Alpha was a cumulative weighted average — making the two metrics behave differently on the same chart. Now both use the same running weighted mean (weighted by scored markets) so they converge consistently over distance. Also reduces chart agents from top-5 to top-3 to reduce visual noise. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
… agents Replaces the cumulative-weighted-average with a 5-round rolling window so both Alpha and Brier time series reflect recent performance rather than converging toward a lifetime mean. Window size is a named constant (ROLLING_WINDOW = 5) for easy adjustment. Reverts chart agents back to top-5. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
ROLLING_WINDOW = 5for easy adjustmentTest plan
/leaderboard, switch between Alpha and Brier — both should show a reactive time series that moves with recent rounds, not a flat converging line🤖 Generated with Claude Code