{
  "date": "2026-10-07",
  "runtime": "v24.19.0",
  "app_sha256": "b5b23e8c7028a1ee6ede9b41b459f5213af44661fc42f3d8c07b4a45f99c0644",
  "method": "Synthetic fixtures, not Claude samples. Actual homepage script in minimal DOM. Checkbox state and dash mode recorded in each row. Observations are fixture-specific, not general application tests.",
  "rows": [
    {
      "label": "Initial UTF8 BOM",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "AB",
      "output": "AB",
      "input_codepoints": "U+0041 U+0042",
      "output_codepoints": "U+0041 U+0042",
      "status": "No selected invisible characters found",
      "before": {
        "feffCount": 0,
        "selectedCount": 0
      },
      "after": {
        "feffCount": 0,
        "selectedCount": 0
      }
    },
    {
      "label": "Interior BOM",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "AB",
      "output": "AB",
      "input_codepoints": "U+0041 U+FEFF U+0042",
      "output_codepoints": "U+0041 U+0042",
      "status": "Removed 1 invisible character",
      "before": {
        "feffCount": 1,
        "selectedCount": 1
      },
      "after": {
        "feffCount": 0,
        "selectedCount": 0
      }
    },
    {
      "label": "Initial and interior BOM",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "AB",
      "output": "AB",
      "input_codepoints": "U+0041 U+FEFF U+0042",
      "output_codepoints": "U+0041 U+0042",
      "status": "Removed 1 invisible character",
      "before": {
        "feffCount": 1,
        "selectedCount": 1
      },
      "after": {
        "feffCount": 0,
        "selectedCount": 0
      }
    },
    {
      "label": "Selected marker body",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "A​B",
      "output": "AB",
      "input_codepoints": "U+0041 U+200B U+0042",
      "output_codepoints": "U+0041 U+0042",
      "status": "Removed 1 invisible character",
      "before": {
        "feffCount": 0,
        "selectedCount": 1
      },
      "after": {
        "feffCount": 0,
        "selectedCount": 0
      }
    }
  ]
}