{
  "date": "2026-10-05",
  "runtime": "v24.19.0",
  "app_sha256": "b5b23e8c7028a1ee6ede9b41b459f5213af44661fc42f3d8c07b4a45f99c0644",
  "method": "Synthetic fixtures, not Claude samples. Actual homepage script in minimal DOM. Invisible checkbox on; dash Keep unless matrix says otherwise. Observations are fixture-specific, not general application tests.",
  "rows": [
    {
      "label": "Supplementary symbol",
      "stage": "direct string",
      "mode": "keep",
      "input": "😀",
      "output": "😀",
      "input_codepoints": "U+1F600",
      "output_codepoints": "U+1F600",
      "status": "No selected invisible characters found",
      "before": {
        "codePoints": 1,
        "utf16": 2,
        "graphemes": 1
      },
      "after": {
        "codePoints": 1,
        "utf16": 2,
        "graphemes": 1
      }
    },
    {
      "label": "Joined technologist",
      "stage": "direct string",
      "mode": "keep",
      "input": "👩‍💻",
      "output": "👩‍💻",
      "input_codepoints": "U+1F469 U+200D U+1F4BB",
      "output_codepoints": "U+1F469 U+200D U+1F4BB",
      "status": "No selected invisible characters found",
      "before": {
        "codePoints": 3,
        "utf16": 5,
        "graphemes": 1
      },
      "after": {
        "codePoints": 3,
        "utf16": 5,
        "graphemes": 1
      }
    },
    {
      "label": "Decomposed accent",
      "stage": "direct string",
      "mode": "keep",
      "input": "é",
      "output": "é",
      "input_codepoints": "U+0065 U+0301",
      "output_codepoints": "U+0065 U+0301",
      "status": "No selected invisible characters found",
      "before": {
        "codePoints": 2,
        "utf16": 2,
        "graphemes": 1
      },
      "after": {
        "codePoints": 2,
        "utf16": 2,
        "graphemes": 1
      }
    },
    {
      "label": "Emoji plus deleted marker",
      "stage": "direct string",
      "mode": "keep",
      "input": "😀​",
      "output": "😀",
      "input_codepoints": "U+1F600 U+200B",
      "output_codepoints": "U+1F600",
      "status": "Removed 1 invisible character",
      "before": {
        "codePoints": 2,
        "utf16": 3,
        "graphemes": 2
      },
      "after": {
        "codePoints": 1,
        "utf16": 2,
        "graphemes": 1
      }
    }
  ]
}