{
  "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": "Marker in first sentence",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "Hi​. Next.",
      "output": "Hi. Next.",
      "input_codepoints": "U+0048 U+0069 U+200B U+002E U+0020 U+004E U+0065 U+0078 U+0074 U+002E",
      "output_codepoints": "U+0048 U+0069 U+002E U+0020 U+004E U+0065 U+0078 U+0074 U+002E",
      "status": "Removed 1 invisible character",
      "before": {
        "segments": [
          {
            "segment": "Hi​. ",
            "index": 0
          },
          {
            "segment": "Next.",
            "index": 5
          }
        ],
        "utf16Units": 10,
        "codePoints": 10
      },
      "after": {
        "segments": [
          {
            "segment": "Hi. ",
            "index": 0
          },
          {
            "segment": "Next.",
            "index": 4
          }
        ],
        "utf16Units": 9,
        "codePoints": 9
      }
    },
    {
      "label": "Plain two sentences",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "Hi. Next.",
      "output": "Hi. Next.",
      "input_codepoints": "U+0048 U+0069 U+002E U+0020 U+004E U+0065 U+0078 U+0074 U+002E",
      "output_codepoints": "U+0048 U+0069 U+002E U+0020 U+004E U+0065 U+0078 U+0074 U+002E",
      "status": "No selected invisible characters found",
      "before": {
        "segments": [
          {
            "segment": "Hi. ",
            "index": 0
          },
          {
            "segment": "Next.",
            "index": 4
          }
        ],
        "utf16Units": 9,
        "codePoints": 9
      },
      "after": {
        "segments": [
          {
            "segment": "Hi. ",
            "index": 0
          },
          {
            "segment": "Next.",
            "index": 4
          }
        ],
        "utf16Units": 9,
        "codePoints": 9
      }
    },
    {
      "label": "Retained joiner",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "Hi‍. Next.",
      "output": "Hi‍. Next.",
      "input_codepoints": "U+0048 U+0069 U+200D U+002E U+0020 U+004E U+0065 U+0078 U+0074 U+002E",
      "output_codepoints": "U+0048 U+0069 U+200D U+002E U+0020 U+004E U+0065 U+0078 U+0074 U+002E",
      "status": "No selected invisible characters found",
      "before": {
        "segments": [
          {
            "segment": "Hi‍. ",
            "index": 0
          },
          {
            "segment": "Next.",
            "index": 5
          }
        ],
        "utf16Units": 10,
        "codePoints": 10
      },
      "after": {
        "segments": [
          {
            "segment": "Hi‍. ",
            "index": 0
          },
          {
            "segment": "Next.",
            "index": 5
          }
        ],
        "utf16Units": 10,
        "codePoints": 10
      }
    },
    {
      "label": "Emoji sentence",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "😀. Next.",
      "output": "😀. Next.",
      "input_codepoints": "U+1F600 U+002E U+0020 U+004E U+0065 U+0078 U+0074 U+002E",
      "output_codepoints": "U+1F600 U+002E U+0020 U+004E U+0065 U+0078 U+0074 U+002E",
      "status": "No selected invisible characters found",
      "before": {
        "segments": [
          {
            "segment": "😀. ",
            "index": 0
          },
          {
            "segment": "Next.",
            "index": 4
          }
        ],
        "utf16Units": 9,
        "codePoints": 8
      },
      "after": {
        "segments": [
          {
            "segment": "😀. ",
            "index": 0
          },
          {
            "segment": "Next.",
            "index": 4
          }
        ],
        "utf16Units": 9,
        "codePoints": 8
      }
    }
  ]
}