{
  "prepared": "2026-09-19",
  "artifact": "Existing checkpoint-editor components exercised with synthetic state",
  "duration_seconds": 36.44,
  "states": {
    "initial": {
      "modifications": 4,
      "applied_traits": 4
    },
    "after_changes": {
      "modifications": 8,
      "removed": "arcane bearing",
      "composition": {
        "trait_choices": 4,
        "presence_setting": 1,
        "accent_colour": 1,
        "written_refinements": 2
      },
      "negative_refinement": "no heavy armor; included in the eight active modifications"
    }
  },
  "scope": "Isolated component study; no generation service, backend or persistence",
  "known_slip": "The composition text contains an article error (a arcane bearing) from the existing deterministic compose function; preserved as authentic behavior."
}