What was computed
Breeder Q 2.735-3.460, Pfus 58.6-118.9 MW over 9-pt grid (all physics gates OK; 3 corners over T dut | COVERAGE: breeder+burner
Reproduce this
# Reproduce KX-L1-A1 against the frozen record pip install kronos-toolkit # github.com/KronosFE/kronos-toolkit python -c "from kronos_toolkit.verify import run_regression; run_regression()" # KX-L1-A1 is anchored in the 2026-08-27 freeze spine (verdict: reproduced).