{
  "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 identifier",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "​7",
      "output": "7",
      "input_codepoints": "U+200B U+0037",
      "output_codepoints": "U+0037",
      "status": "Removed 1 invisible character",
      "before": {
        "utf16Units": 2,
        "codePoints": 2,
        "padded": "00​7",
        "paddedUtf16Units": 4
      },
      "after": {
        "utf16Units": 1,
        "codePoints": 1,
        "padded": "0007",
        "paddedUtf16Units": 4
      }
    },
    {
      "label": "Plain identifier",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "7",
      "output": "7",
      "input_codepoints": "U+0037",
      "output_codepoints": "U+0037",
      "status": "No selected invisible characters found",
      "before": {
        "utf16Units": 1,
        "codePoints": 1,
        "padded": "0007",
        "paddedUtf16Units": 4
      },
      "after": {
        "utf16Units": 1,
        "codePoints": 1,
        "padded": "0007",
        "paddedUtf16Units": 4
      }
    },
    {
      "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": {
        "utf16Units": 2,
        "codePoints": 1,
        "padded": "00😀",
        "paddedUtf16Units": 4
      },
      "after": {
        "utf16Units": 2,
        "codePoints": 1,
        "padded": "00😀",
        "paddedUtf16Units": 4
      }
    },
    {
      "label": "Already over width",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "12345",
      "output": "12345",
      "input_codepoints": "U+0031 U+0032 U+0033 U+0034 U+0035",
      "output_codepoints": "U+0031 U+0032 U+0033 U+0034 U+0035",
      "status": "No selected invisible characters found",
      "before": {
        "utf16Units": 5,
        "codePoints": 5,
        "padded": "12345",
        "paddedUtf16Units": 5
      },
      "after": {
        "utf16Units": 5,
        "codePoints": 5,
        "padded": "12345",
        "paddedUtf16Units": 5
      }
    }
  ]
}