{
  "command": [
    "docker",
    "run",
    "--rm",
    "--pull",
    "never",
    "--runtime",
    "runc",
    "--network",
    "none",
    "--name",
    "codex-active-serial",
    "--cpus",
    "2",
    "--memory",
    "4g",
    "--memory-swap",
    "4g",
    "-e",
    "OPENBLAS_NUM_THREADS=1",
    "-e",
    "PYTHONDONTWRITEBYTECODE=1",
    "-v",
    "/tmp/codex/ltb1021/2026-09-15_contextra-active-tracking_r01:/evidence",
    "-v",
    "/tmp/codex/ltb1021/2026-09-09_contextra-medium-video_r01/fp16.jsonl:/input/fp16.jsonl:ro",
    "--entrypoint",
    "timeout",
    "sha256:694b25c5a1dde9d4084e1615d248f0f0b297c1675c33b27c5650932da49c6f37",
    "150",
    "python3",
    "/evidence/replay_serial.py"
  ],
  "reason": "Same-input2-thread contention confirmed; one FIFO serialized-kernel comparison, not thread-count exploration"
}