{
  "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": "Invalid hidden separator",
      "stage": "direct string",
      "mode": "keep",
      "input": "const acc​ount = 7; return acc​ount;",
      "output": "const account = 7; return account;",
      "input_codepoints": "U+0063 U+006F U+006E U+0073 U+0074 U+0020 U+0061 U+0063 U+0063 U+200B U+006F U+0075 U+006E U+0074 U+0020 U+003D U+0020 U+0037 U+003B U+0020 U+0072 U+0065 U+0074 U+0075 U+0072 U+006E U+0020 U+0061 U+0063 U+0063 U+200B U+006F U+0075 U+006E U+0074 U+003B",
      "output_codepoints": "U+0063 U+006F U+006E U+0073 U+0074 U+0020 U+0061 U+0063 U+0063 U+006F U+0075 U+006E U+0074 U+0020 U+003D U+0020 U+0037 U+003B U+0020 U+0072 U+0065 U+0074 U+0075 U+0072 U+006E U+0020 U+0061 U+0063 U+0063 U+006F U+0075 U+006E U+0074 U+003B",
      "status": "Removed 2 invisible characters",
      "before": {
        "parses": false,
        "error": "SyntaxError"
      },
      "after": {
        "parses": true,
        "value": 7
      }
    },
    {
      "label": "Valid non-joiner identifier",
      "stage": "direct string",
      "mode": "keep",
      "input": "const acc‌ount = 7; return acc‌ount;",
      "output": "const acc‌ount = 7; return acc‌ount;",
      "input_codepoints": "U+0063 U+006F U+006E U+0073 U+0074 U+0020 U+0061 U+0063 U+0063 U+200C U+006F U+0075 U+006E U+0074 U+0020 U+003D U+0020 U+0037 U+003B U+0020 U+0072 U+0065 U+0074 U+0075 U+0072 U+006E U+0020 U+0061 U+0063 U+0063 U+200C U+006F U+0075 U+006E U+0074 U+003B",
      "output_codepoints": "U+0063 U+006F U+006E U+0073 U+0074 U+0020 U+0061 U+0063 U+0063 U+200C U+006F U+0075 U+006E U+0074 U+0020 U+003D U+0020 U+0037 U+003B U+0020 U+0072 U+0065 U+0074 U+0075 U+0072 U+006E U+0020 U+0061 U+0063 U+0063 U+200C U+006F U+0075 U+006E U+0074 U+003B",
      "status": "No selected invisible characters found",
      "before": {
        "parses": true,
        "value": 7
      },
      "after": {
        "parses": true,
        "value": 7
      }
    },
    {
      "label": "Baseline identifier",
      "stage": "direct string",
      "mode": "keep",
      "input": "const account = 7; return account;",
      "output": "const account = 7; return account;",
      "input_codepoints": "U+0063 U+006F U+006E U+0073 U+0074 U+0020 U+0061 U+0063 U+0063 U+006F U+0075 U+006E U+0074 U+0020 U+003D U+0020 U+0037 U+003B U+0020 U+0072 U+0065 U+0074 U+0075 U+0072 U+006E U+0020 U+0061 U+0063 U+0063 U+006F U+0075 U+006E U+0074 U+003B",
      "output_codepoints": "U+0063 U+006F U+006E U+0073 U+0074 U+0020 U+0061 U+0063 U+0063 U+006F U+0075 U+006E U+0074 U+0020 U+003D U+0020 U+0037 U+003B U+0020 U+0072 U+0065 U+0074 U+0075 U+0072 U+006E U+0020 U+0061 U+0063 U+0063 U+006F U+0075 U+006E U+0074 U+003B",
      "status": "No selected invisible characters found",
      "before": {
        "parses": true,
        "value": 7
      },
      "after": {
        "parses": true,
        "value": 7
      }
    }
  ]
}