{
  "date": "2026-10-08",
  "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": "Selected marker",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "2026-10-08T09:​00:00Z",
      "output": "2026-10-08T09:00:00Z",
      "input_codepoints": "U+0032 U+0030 U+0032 U+0036 U+002D U+0031 U+0030 U+002D U+0030 U+0038 U+0054 U+0030 U+0039 U+003A U+200B U+0030 U+0030 U+003A U+0030 U+0030 U+005A",
      "output_codepoints": "U+0032 U+0030 U+0032 U+0036 U+002D U+0031 U+0030 U+002D U+0030 U+0038 U+0054 U+0030 U+0039 U+003A U+0030 U+0030 U+003A U+0030 U+0030 U+005A",
      "status": "Removed 1 invisible character",
      "before": {
        "accepted": false,
        "timestamp": null,
        "iso": null
      },
      "after": {
        "accepted": true,
        "timestamp": 1791450000000,
        "iso": "2026-10-08T09:00:00.000Z"
      }
    },
    {
      "label": "Retained NBSP",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "2026-10-08T09: 00:00Z",
      "output": "2026-10-08T09: 00:00Z",
      "input_codepoints": "U+0032 U+0030 U+0032 U+0036 U+002D U+0031 U+0030 U+002D U+0030 U+0038 U+0054 U+0030 U+0039 U+003A U+00A0 U+0030 U+0030 U+003A U+0030 U+0030 U+005A",
      "output_codepoints": "U+0032 U+0030 U+0032 U+0036 U+002D U+0031 U+0030 U+002D U+0030 U+0038 U+0054 U+0030 U+0039 U+003A U+00A0 U+0030 U+0030 U+003A U+0030 U+0030 U+005A",
      "status": "No selected invisible characters found",
      "before": {
        "accepted": false,
        "timestamp": null,
        "iso": null
      },
      "after": {
        "accepted": false,
        "timestamp": null,
        "iso": null
      }
    },
    {
      "label": "Retained joiner",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "2026-10-08T09:‍00:00Z",
      "output": "2026-10-08T09:‍00:00Z",
      "input_codepoints": "U+0032 U+0030 U+0032 U+0036 U+002D U+0031 U+0030 U+002D U+0030 U+0038 U+0054 U+0030 U+0039 U+003A U+200D U+0030 U+0030 U+003A U+0030 U+0030 U+005A",
      "output_codepoints": "U+0032 U+0030 U+0032 U+0036 U+002D U+0031 U+0030 U+002D U+0030 U+0038 U+0054 U+0030 U+0039 U+003A U+200D U+0030 U+0030 U+003A U+0030 U+0030 U+005A",
      "status": "No selected invisible characters found",
      "before": {
        "accepted": false,
        "timestamp": null,
        "iso": null
      },
      "after": {
        "accepted": false,
        "timestamp": null,
        "iso": null
      }
    },
    {
      "label": "UTC reference",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "2026-10-08T09:00:00Z",
      "output": "2026-10-08T09:00:00Z",
      "input_codepoints": "U+0032 U+0030 U+0032 U+0036 U+002D U+0031 U+0030 U+002D U+0030 U+0038 U+0054 U+0030 U+0039 U+003A U+0030 U+0030 U+003A U+0030 U+0030 U+005A",
      "output_codepoints": "U+0032 U+0030 U+0032 U+0036 U+002D U+0031 U+0030 U+002D U+0030 U+0038 U+0054 U+0030 U+0039 U+003A U+0030 U+0030 U+003A U+0030 U+0030 U+005A",
      "status": "No selected invisible characters found",
      "before": {
        "accepted": true,
        "timestamp": 1791450000000,
        "iso": "2026-10-08T09:00:00.000Z"
      },
      "after": {
        "accepted": true,
        "timestamp": 1791450000000,
        "iso": "2026-10-08T09:00:00.000Z"
      }
    }
  ]
}