{
  "title": "Steel tube manufacturing data for AI coil and seam records",
  "source_page": "https://fiund.com/industries/steel-tube-coil-seam-traveler-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "A seam record stops where its inspection window stops",
    "context": "A toy tube traveler uses invented segment keys. No real welding or production procedures appear.",
    "records": [
      [
        "1",
        "Coil receipt",
        "Source coil K5 feeds segments A and B."
      ],
      [
        "2",
        "Traveler",
        "A assigned positions 0–10; B positions 10–20."
      ],
      [
        "3",
        "Inspection index",
        "Report I4 covers seam positions 2–8 only."
      ]
    ],
    "question": "What coverage should the directory show?",
    "answer": "I4 covers positions 2–8 within segment A using records 2 and 3. It does not cover all of A, and no part of B falls in that window. Record 1 supplies source lineage for both segments, which is separate from inspection coverage.",
    "failureModes": [
      "Labeling an entire segment inspected from a partial interval",
      "Extending an inspection across shared coil lineage"
    ],
    "fields": [
      [
        "segment_position_range",
        "Defines coverage units"
      ],
      [
        "report_window",
        "Records the actual inspected interval"
      ],
      [
        "source_coil_id",
        "Preserves provenance without implying coverage"
      ]
    ],
    "holdout": "Use an inspection window spanning the segment boundary and return both partial intervals.",
    "boundary": "No actual seam parameters, pipe applications, inspection thresholds or quality release."
  }
}