{
  "checker": {
    "claims": [
      {
        "claim": "The package can be installed from PyPI with pip",
        "command": "<guest-path> install pyg-base",
        "evidence": "Requirement already satisfied: pyg-base in <guest-path> (0.0.121)\nRequirement already satisfied: numpy in <guest-path> (from pyg-base) (2.5.4)\nRequirement already satisfied: scipy in <guest-path> (from pyg-base) (1.18.1)\nRequirement already satisfied: pandas in <guest-path> (from pyg-base) (3.1.0)\nRequirement already satisfied: jsonpickle in <guest-path> (from pyg-base) (4.1.4)\nRequirement already sati",
        "expected": "pip reports pyg-base installed",
        "input": "pip install pyg-base",
        "kind": "claim",
        "outcome": "Real input produced the expected result: Requirement already satisfied: pyg-base",
        "returncode": 0,
        "source": "pip install from https://pypi.org/project/pyg-base/",
        "source_checked": true,
        "source_file": "README.md",
        "verdict": "yes"
      }
    ],
    "cycle_checks": [
      {
        "claim": "Scheduled or looping main behavior",
        "command": "",
        "evidence": "Inspected README, package entry points, and test inventory; this is a reusable Python utility library with no scheduling, recurring cycle, webhook, or loop trigger product behavior documented.",
        "expected": "identify the product trigger",
        "input": "source inspection",
        "kind": "cycle",
        "outcome": "Inspected README, package entry points, and test inventory; this is a reusable Python utility library with no scheduling, recurring cycle, webhook, or loop trigger product behavior documented.",
        "source": "repository entry points",
        "verdict": "yes"
      }
    ],
    "details": {
      "argv": [
        "<guest-path>",
        "install",
        "pyg-base"
      ],
      "kind": "cli",
      "needs_browser": false,
      "needs_credentials": false,
      "returncode": 0,
      "scope": "product operation",
      "stderr": "",
      "stdout": "Requirement already satisfied: pyg-base in <guest-path> (0.0.121)\nRequirement already satisfied: numpy in <guest-path> (from pyg-base) (2.5.4)\nRequirement already satisfied: scipy in <guest-path> (from pyg-base) (1.18.1)\nRequirement already satisfied: pandas in <guest-path> (from pyg-base) (3.1.0)\nRequirement already satisfied: jsonpickle in <guest-path> (from pyg-base) (4.1.4)\nRequirement already satisfied: python-dateutil>=2.9.0 in <guest-path> (from pandas->pyg-base) (3.0.0)\nRequirement already satisfied: six>=1.6 in <guest-path> (from python-dateutil>=2.9.0->pandas->pyg-base) (1.17.0)\nRequirement already satisfied: tzdata in <guest-path> (from python-dateutil>=2.9.0->pandas->pyg-base) (2026.5)",
      "working": true
    },
    "evidence_strength": "readme_checked",
    "example_checks": [
      {
        "claim": "README PyPI installation",
        "command": "<guest-path> install pyg-base",
        "deferred": false,
        "evidence": "ite-packages (from pyg-base) (3.1.0)\nRequirement already satisfied: jsonpickle in <guest-path> (from pyg-base) (4.1.4)\nRequirement already satisfied: python-dateutil>=2.9.0 in <guest-path> (from pandas->pyg-base) (3.0.0)\nRequirement already satisfied: six>=1.6 in <guest-path> (from python-dateutil>=2.9.0->pandas->pyg-base) (1.17.0)\nRequirement already satisfied: tzdata in <guest-path> (from python-dateutil>=2.9.0->pandas->pyg-base) (2026.5)",
        "expected": "pyg-base installed",
        "input": "pip install pyg-base",
        "kind": "example",
        "outcome": "command completed successfully",
        "returncode": 0,
        "source": "README.md / first line",
        "verdict": "yes"
      },
      {
        "claim": "zipper scalar broadcasting example",
        "command": "<guest-path> -m pytest tests/test_zip.py -q",
        "deferred": false,
        "evidence": "========================== warnings summary ===============================\n../pyg-venv/lib/python3.12/site-packages/pyg_base/_dates.py:13\n  <guest-path> DeprecationWarning: The `dateutil.zoneinfo` module has been replaced with a wrapper around the tzdata package, and its use is deprecated, to be removed in a future version. Use the standard library module `zoneinfo` or `dateutil.tz` instead.\n    from dateutil.zoneinfo import tzfile\n\n-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html\n2 passed, 1 warning in 2.85s",
        "expected": "[(1, 4), (2, 4), (3, 4)]",
        "input": "zipper([1,2,3], 4)",
        "kind": "example",
        "outcome": "command completed successfully",
        "returncode": 0,
        "source": "src/pyg_base/_zip.py / zipper docstring",
        "verdict": "yes"
      }
    ],
    "status": "PASS"
  },
  "deviations": [
    "Initial system pip install was blocked by externally-managed-environment; retried in an isolated venv.",
    "Package installation omitted pytz, pyg-npy and openpyxl required by package imports; installed them in the venv."
  ],
  "fault_owner": null,
  "main_blocker": null,
  "operation": "Install pyg-base and call zipper with a list and scalar",
  "operation_scope": "Python 3.12.3 isolated venv; README documents pip installation and zipper utility",
  "outcome": "working",
  "plain_failure": null,
  "steps": [
    "Created <guest-path> with Python 3.12.3",
    "Installed pyg-base using the README pip install operation",
    "Installed missing runtime dependencies pytz, pyg-npy, and openpyxl after observed import errors",
    "Called zipper([1,2,3], 4) and observed [(1, 4), (2, 4), (3, 4)]"
  ],
  "stuck_step": null,
  "suggested_fix": null
}