{
  "date": "2026-10-12",
  "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": "Invalid continuation byte",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "80",
      "output": "80",
      "input_codepoints": "U+0038 U+0030",
      "output_codepoints": "U+0038 U+0030",
      "status": "No selected invisible characters found",
      "before": {
        "hex": "80",
        "defaultText": "�",
        "fatal": {
          "accepted": false,
          "errorName": "TypeError"
        }
      },
      "after": {
        "hex": "80",
        "defaultText": "�",
        "fatal": {
          "accepted": false,
          "errorName": "TypeError"
        }
      }
    },
    {
      "label": "Valid marker bytes",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "41e2808b42",
      "output": "41e2808b42",
      "input_codepoints": "U+0034 U+0031 U+0065 U+0032 U+0038 U+0030 U+0038 U+0062 U+0034 U+0032",
      "output_codepoints": "U+0034 U+0031 U+0065 U+0032 U+0038 U+0030 U+0038 U+0062 U+0034 U+0032",
      "status": "No selected invisible characters found",
      "before": {
        "hex": "41e2808b42",
        "defaultText": "A​B",
        "fatal": {
          "accepted": true,
          "text": "A​B"
        }
      },
      "after": {
        "hex": "41e2808b42",
        "defaultText": "A​B",
        "fatal": {
          "accepted": true,
          "text": "A​B"
        }
      }
    },
    {
      "label": "Truncated multibyte sequence",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "e282",
      "output": "e282",
      "input_codepoints": "U+0065 U+0032 U+0038 U+0032",
      "output_codepoints": "U+0065 U+0032 U+0038 U+0032",
      "status": "No selected invisible characters found",
      "before": {
        "hex": "e282",
        "defaultText": "�",
        "fatal": {
          "accepted": false,
          "errorName": "TypeError"
        }
      },
      "after": {
        "hex": "e282",
        "defaultText": "�",
        "fatal": {
          "accepted": false,
          "errorName": "TypeError"
        }
      }
    },
    {
      "label": "Literal replacement character",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "efbfbd",
      "output": "efbfbd",
      "input_codepoints": "U+0065 U+0066 U+0062 U+0066 U+0062 U+0064",
      "output_codepoints": "U+0065 U+0066 U+0062 U+0066 U+0062 U+0064",
      "status": "No selected invisible characters found",
      "before": {
        "hex": "efbfbd",
        "defaultText": "�",
        "fatal": {
          "accepted": true,
          "text": "�"
        }
      },
      "after": {
        "hex": "efbfbd",
        "defaultText": "�",
        "fatal": {
          "accepted": true,
          "text": "�"
        }
      }
    }
  ]
}