Comparable score observations need the benchmark version and split, metric direction, model, harness or scaffold, reasoning budget, cost or latency, publication date, and source. Only compatible configurations can share a score frontier; this registry currently stores mentions, not those measurements.
With those observations, a Harbor-style view can put cost or latency on the x-axis and score on the y-axis, connect only nondominated observations, and use a publication-time slider to reveal how the frontier moved.