{
  "approach": "Blocked before scorer verification or strategy development: no usable Python interpreter is available. The task explicitly instructs this case to be recorded and stopped.",
  "blocked": "Running python3 --version failed with exit code 1: xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun. Executable lookup found only /usr/bin/python3; python, python3.13, python3.12, and python3.11 were not found. No simulations were run and no strategy is submitted.",
  "python_version": null,
  "base_mean_edge": null,
  "score": {
    "mean_edge": null,
    "retail_edge": null,
    "arb_edge": null,
    "simulations": 0,
    "seed_start": 1000,
    "failures": 0
  },
  "holdout": {
    "mean_edge": null,
    "simulations": 0,
    "seed_start": 30000,
    "failures": 0
  },
  "code": "",
  "code_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
  "tried": [
    "Python runtime check failed before any simulation; null scores indicate unmeasured values, not a candidate. No sandbox checks were possible."
  ],
  "next": "Provide a working Python 3.10 or newer runtime, then rerun the assignment from scorer verification."
}