{
  "approach": "Planned: add a separately decayed and capped volatility observation from the inferred normalizer spot to NP. Implementation and measurement did not begin because the mandated setup failed.",
  "tried": [],
  "next": "A subsequent attempt needs the setup archive extraction to tolerate unavailable archive ownership IDs (for example, tar --no-same-owner). Then reproduce CH and NP, tune only on seeds 30000..39999, freeze one candidate, and compare once on seeds 800000..801999.",
  "code": null,
  "code_sha256": null,
  "delta": null,
  "score": {
    "seed_start": 0,
    "n": 0,
    "mean_edge": null,
    "se": null
  },
  "paired": {
    "reference": "NP",
    "seed_start": 800000,
    "n": 0,
    "mean_diff": null,
    "se": null,
    "worst": []
  },
  "seconds_per_simulation": null,
  "validate_ok": false,
  "blocked": {
    "step": "sh scratch/setup.sh: uv download/archive extraction",
    "error": "Setup exited with status 2. tar: uv-x86_64-unknown-linux-gnu/uv: Cannot change ownership to uid 1001, gid 112: Invalid argument\ntar: uv-x86_64-unknown-linux-gnu/uvx: Cannot change ownership to uid 1001, gid 112: Invalid argument\ntar: uv-x86_64-unknown-linux-gnu: Cannot change ownership to uid 1001, gid 112: Invalid argument\ntar: Exiting with failure status due to previous errors",
    "context": "Cloned the requested repository into test/scratch/amm-challenge and checked out 6b6921f8d463314aa7c96234e1be25a25245f704. Saved the supplied setup script and ran it once from that checkout root. Stopped as instructed on setup failure. Validation was not reached; no simulations ran, no candidate was frozen, and no promotion is claimed."
  },
  "citations": []
}