{
  "approach": "Planned: two-pass coordinate search restricted to the YQ toxicity and tail constants, with n=500 paired tuning evaluations and n=2000 paired fresh confirmation. Stopped at the required toolchain gate; no candidate was generated or evaluated.",
  "tried": [],
  "next": [
    "Provision Python pip, Rust/Cargo, and maturin before retrying the bounded item.",
    "Install the pinned simulator and validate the reference, then verify the supplied YQ SHA-256.",
    "Run the requested two-pass sweep, score seeds 0..999, and confirm against YQ on seeds 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 gate failed. Fresh clone and checkout of 6b6921f8d463314aa7c96234e1be25a25245f704 succeeded. Python 3.12.3 is available, but python3 -m pip install -e . failed with \"No module named pip\"; rustc --version failed with \"rustc: command not found\"; maturin develop --release failed with \"maturin: command not found\"; amm-match validate contracts/src/StarterStrategy.sol failed with \"amm-match: command not found\". No cargo, rustup, or uv executable was found on PATH. Installing a Rust toolchain and compiling the engine was judged incompatible with the requested few-minute setup gate, so setup stopped. Validation did not execute; no simulations, sweep, promotion, final strategy, or public-write-up review were completed.",
  "citations": [
    {
      "url": "https://raw.githubusercontent.com/benedictbrady/amm-challenge/6b6921f8d463314aa7c96234e1be25a25245f704/amm_sim_rs/pyproject.toml",
      "supports": "Pinned Rust extension build requires maturin. Tool availability and command failures are local observations, not claims from this source."
    }
  ]
}