What was computed
L1-L4 HEA: ILW+ @1yr -> LLW @10yr -> CLEARABLE @100yr, longlived frac 0.0; dirty refs stay ILW+ (Nb94/Zr93) [T from files]
Reproduce this
# Reproduce ENV-A2 against the frozen record pip install kronos-toolkit # github.com/KronosFE/kronos-toolkit python -c "from kronos_toolkit.verify import run_regression; run_regression()" # ENV-A2 is anchored in the 2026-08-27 freeze spine (verdict: reproduced).