Robert Allan JamesandClaude Sonnet 5
e7b7f45d60
Cells 4-6 complete and verified (480/480 rows, 16/16 cfg coverage, zero errors each): aarch64/12345 enabled+disabled (a real pair: 310.5s vs 283.0s, +9.7% in the expected direction), riscv64/13579 disabled. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>