{
  "date": "2026-10-09",
  "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 after prefix",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "12​34",
      "output": "1234",
      "input_codepoints": "U+0031 U+0032 U+200B U+0033 U+0034",
      "output_codepoints": "U+0031 U+0032 U+0033 U+0034",
      "status": "Removed 1 invisible character",
      "before": {
        "parseInt10": 12,
        "prefixAccepted": true,
        "number": null,
        "wholeConversionFinite": false
      },
      "after": {
        "parseInt10": 1234,
        "prefixAccepted": true,
        "number": 1234,
        "wholeConversionFinite": true
      }
    },
    {
      "label": "Trailing letters",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "12abc",
      "output": "12abc",
      "input_codepoints": "U+0031 U+0032 U+0061 U+0062 U+0063",
      "output_codepoints": "U+0031 U+0032 U+0061 U+0062 U+0063",
      "status": "No selected invisible characters found",
      "before": {
        "parseInt10": 12,
        "prefixAccepted": true,
        "number": null,
        "wholeConversionFinite": false
      },
      "after": {
        "parseInt10": 12,
        "prefixAccepted": true,
        "number": null,
        "wholeConversionFinite": false
      }
    },
    {
      "label": "Leading marker",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "​1234",
      "output": "1234",
      "input_codepoints": "U+200B U+0031 U+0032 U+0033 U+0034",
      "output_codepoints": "U+0031 U+0032 U+0033 U+0034",
      "status": "Removed 1 invisible character",
      "before": {
        "parseInt10": null,
        "prefixAccepted": false,
        "number": null,
        "wholeConversionFinite": false
      },
      "after": {
        "parseInt10": 1234,
        "prefixAccepted": true,
        "number": 1234,
        "wholeConversionFinite": true
      }
    },
    {
      "label": "Plain integer",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "1234",
      "output": "1234",
      "input_codepoints": "U+0031 U+0032 U+0033 U+0034",
      "output_codepoints": "U+0031 U+0032 U+0033 U+0034",
      "status": "No selected invisible characters found",
      "before": {
        "parseInt10": 1234,
        "prefixAccepted": true,
        "number": 1234,
        "wholeConversionFinite": true
      },
      "after": {
        "parseInt10": 1234,
        "prefixAccepted": true,
        "number": 1234,
        "wholeConversionFinite": true
      }
    }
  ]
}