Frozen result
n
1
What was computed
Mercier D_M>0 & s-alpha ballooning stable on ALL confinement surfaces (q>1); core q<1 sawtooth pocket only. betaN 2.13-2.44 < no-wall Troyon 2.8 (kink margin 1.15-1.31x = binding). Reduced-metric; full n=1 dW eigenvalue solve (DCON/MARS) still owed
Reproduce this
# Reproduce BR-L2-A19 against the frozen record pip install kronos-toolkit # github.com/KronosFE/kronos-toolkit python -c "from kronos_toolkit.verify import run_regression; run_regression()" # BR-L2-A19 is anchored in the 2026-08-27 freeze spine (verdict: reproduced).