{
  "observation": "The incumbent should start from the exact known launch-safe qwen3.5-27b serving recipe on dash0 before asking the LLM to optimize throughput per GPU above that baseline.",
  "diagnosis": "This model uses a long-context hybrid stack and fp8 quantization. The correct first measurement is to preserve the TP1 run_qwen27b.sh baseline exactly, then let later trials explore TP/DP and runtime knobs from that anchor.",
  "config_patch": {
    "env_patch": {},
    "flag_patch": {}
  },
  "expected_effects": [
    "Launch-safe TP1 baseline exactly aligned with run_qwen27b.sh",
    "Reliable first incumbent for per-GPU comparison under the tighter TTFT and TPOT SLO",
    "Clean anchor before topology exploration across TP*DP groups"
  ],
  "why_not_previous_failures": "This baseline intentionally introduces no patch at all, so it cannot repeat previous tuning-only failures."
}