{
  "approach": "linear-stale: planned linear stale-price directional protection using YQ fee-band inverse and gate; implementation did not begin because toolchain preflight failed.",
  "tried": [],
  "next": [
    "Provision Python with working pip/venv and a Rust toolchain with maturin.",
    "Repeat pinned editable install, release extension build, and reference validation before implementing the five-constant grid.",
    "If setup passes, tune only permitted seeds, score 0..999, and confirm paired against YQ on 400000..401999."
  ],
  "code": null,
  "code_sha256": null,
  "delta": null,
  "score": {
    "n": 0,
    "mean_edge": null,
    "se": null,
    "seed_start": 0
  },
  "paired": {
    "reference": "YQ 00fae418",
    "seed_start": 400000,
    "n": 0,
    "mean_diff": null,
    "se": null,
    "worst": []
  },
  "seconds_per_simulation": null,
  "validate_ok": false,
  "blocked": "Toolchain preflight failed: pinned repository checkout succeeded, but python is not on PATH; python3 -m venv fails because ensurepip is unavailable; pip3, rustc, cargo, and maturin are not on PATH. pip install -e ., maturin develop --release, and reference amm-match validate could not be completed. Stopped under the brief's few-minute toolchain cutoff; no strategy was generated or tested.",
  "citations": [
    "https://github.com/benedictbrady/amm-challenge/blob/6b6921f8d463314aa7c96234e1be25a25245f704/amm_sim_rs/pyproject.toml"
  ]
}