What was computed
Reduced-order disruption/RE (NIMROD-verified equilibrium): tau_CQ ~7ms (7-19 band); SEVERE runaway avalanche E/E_c~1128, ~20-39 e-foldings -> multi-MA RE beam ~70% Ip from mA seed; halo ~35% Ip (VV load). SPI MITIGATION = HARD DESIGN REQUIREMENT. Full 3-D NIMROD = upside (team pending); L_p +28% vs NIMROD -> E/N upper estimates, SEVERE either way
Reproduce this
# Reproduce BR-L2-A10 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-A10 is anchored in the 2026-08-27 freeze spine (verdict: estimated).