{
  "checker": {
    "details": {
      "argv": [
        "/tmp/means-venv/bin/python",
        "generate_aggregation_plots.py"
      ],
      "kind": "cli",
      "needs_browser": false,
      "needs_credentials": false,
      "returncode": 0,
      "scope": "product operation",
      "stderr": "<host-path> RuntimeWarning: A_lo encountered a zero denominator; returning 0.\n  result = function(np.array([x[row, column], y[row, column]]))",
      "stdout": "Generated overview: <host-path>\nGenerated individual plots: 18",
      "working": true
    },
    "status": "PASS"
  },
  "deviations": [
    "README pip install aggregationslib (PyPI) replaced by installing the pinned checkout, since the task requires the checkout to be the product under test.",
    "Guest Ubuntu 24.04 has python3.12 only; README requires Python 3.14, so installed 3.14.8 via uv.",
    "No git metadata in the checkout, so setuptools-scm needed SETUPTOOLS_SCM_PRETEND_VERSION=0.0.0.",
    "matplotlib is not in pyproject dependencies but the plotting script imports it; installed manually.",
    "README gives the Windows command 'python .\\\\generate_aggregation_plots.py'; ran the equivalent with the venv python on Linux.",
    "Script emits a RuntimeWarning about A_lo zero denominator on stderr; exit code 0."
  ],
  "main_blocker": null,
  "operation": "README.pl.md 'Wykresy 3D' section: python generate_aggregation_plots.py (renders 3D surfaces for all A_* aggregation classes into docs/assets)",
  "operation_scope": "Library install from checkout (aggregationslib, Python>=3.14) plus matplotlib for the plotting script. Exercised the documented plot generation command; the script wrote 1 overview PNG and 18 per-function PNGs. Not run: unit tests or lint (per task instructions).",
  "outcome": "working",
  "steps": [
    "ls/read README.pl.md (README.md has no install section; Polish README has the install and plot commands)",
    "apt-get install python3-pip python3-venv",
    "python3 -m venv /tmp/uvtool && pip install uv (uv 0.13.1)",
    "uv python install 3.14 (3.14.8)",
    "uv venv -p 3.14 /tmp/means-venv; install setuptools/setuptools-scm/wheel",
    "SETUPTOOLS_SCM_PRETEND_VERSION=0.0.0 uv pip install <host-path>",
    "uv pip install matplotlib",
    "MPLBACKEND=Agg /tmp/means-venv/bin/python generate_aggregation_plots.py (rc=0)"
  ],
  "stuck_step": null,
  "suggested_fix": null
}