{
  "approach": "Toolchain-first gate for yq-lite: simplify YQ to at most eight slots and eight constants, then measure paired. Stopped at the required gate; no strategy implemented or claimed tested.",
  "tried": [],
  "next": "Provide a runtime with Python pip/venv and Rust/Cargo/maturin available.\nInstall the pinned simulator and validate the reference before implementing yq-lite.\nTune on permitted tuning seeds, then score 0..999 and confirm paired 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": "Required toolchain gate failed. A fresh clone checked out commit 6b6921f8d463314aa7c96234e1be25a25245f704 successfully. Python 3.12.3 is present, but python3 -m pip install -e test/scratch/yq-lite/amm-challenge failed with \"No module named pip\". python3 -m venv failed because ensurepip is unavailable. rustc, cargo, rustup, maturin, uv and amm-match were not found on PATH. maturin develop --release and amm-match validate on StarterStrategy.sol both failed with command not found. The requested install/build/reference-validation gate could not run with the available toolchain; returned at once under the brief's fallback. No simulations, tuning, fresh-seed comparisons, or candidate validation ran. No untested strategy is supplied.",
  "citations": []
}