{
  "date": "2026-10-11",
  "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": "Marked ASCII",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "AB​C",
      "output": "ABC",
      "input_codepoints": "U+0041 U+0042 U+200B U+0043",
      "output_codepoints": "U+0041 U+0042 U+0043",
      "status": "Removed 1 invisible character",
      "before": {
        "codePoints": 4,
        "utf16Units": 4,
        "utf8Bytes": 6,
        "fitsFourByteBudget": false
      },
      "after": {
        "codePoints": 3,
        "utf16Units": 3,
        "utf8Bytes": 3,
        "fitsFourByteBudget": true
      }
    },
    {
      "label": "Plain ASCII",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "ABC",
      "output": "ABC",
      "input_codepoints": "U+0041 U+0042 U+0043",
      "output_codepoints": "U+0041 U+0042 U+0043",
      "status": "No selected invisible characters found",
      "before": {
        "codePoints": 3,
        "utf16Units": 3,
        "utf8Bytes": 3,
        "fitsFourByteBudget": true
      },
      "after": {
        "codePoints": 3,
        "utf16Units": 3,
        "utf8Bytes": 3,
        "fitsFourByteBudget": true
      }
    },
    {
      "label": "Accented letter",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "é",
      "output": "é",
      "input_codepoints": "U+00E9",
      "output_codepoints": "U+00E9",
      "status": "No selected invisible characters found",
      "before": {
        "codePoints": 1,
        "utf16Units": 1,
        "utf8Bytes": 2,
        "fitsFourByteBudget": true
      },
      "after": {
        "codePoints": 1,
        "utf16Units": 1,
        "utf8Bytes": 2,
        "fitsFourByteBudget": true
      }
    },
    {
      "label": "Supplementary symbol",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "😀",
      "output": "😀",
      "input_codepoints": "U+1F600",
      "output_codepoints": "U+1F600",
      "status": "No selected invisible characters found",
      "before": {
        "codePoints": 1,
        "utf16Units": 2,
        "utf8Bytes": 4,
        "fitsFourByteBudget": true
      },
      "after": {
        "codePoints": 1,
        "utf16Units": 2,
        "utf8Bytes": 4,
        "fitsFourByteBudget": true
      }
    }
  ]
}