id,population_shift,protocol_deviation_rate,site_variance_level,endpoint_fragility,signal,label
11,none,low,low,low,Baseline coherence across all nodes,0
12,minor,medium,low,low,Manageable drift without endpoint break,1
13,minor,medium,high,high,Site variance plus shift breaks endpoint credibility,2
14,major,low,medium,medium,Shift present but deviation controlled. Fragility emerging,1
15,major,high,high,high,Full quad failure with endpoint collapse,2