{
  "date": "2026-10-13",
  "runtime": "v24.19.0",
  "versions": {
    "node": "24.19.0",
    "acorn": "8.17.0",
    "ada": "3.4.4",
    "amaro": "1.1.10",
    "ares": "1.34.6",
    "brotli": "1.2.0",
    "cldr": "48.0",
    "icu": "78.3",
    "llhttp": "9.4.3",
    "merve": "1.2.2",
    "modules": "137",
    "napi": "10",
    "nbytes": "0.1.4",
    "ncrypto": "0.0.1",
    "nghttp2": "1.69.0",
    "nghttp3": "",
    "ngtcp2": "",
    "openssl": "3.5.7",
    "simdjson": "4.6.4",
    "simdutf": "6.4.0",
    "sqlite": "3.53.3",
    "tz": "2026b",
    "undici": "7.29.0",
    "unicode": "17.0",
    "uv": "1.52.1",
    "uvwasi": "0.0.23",
    "v8": "13.6.233.17-node.51",
    "zlib": "1.3.2.1-motley-3246f1b",
    "zstd": "1.5.7"
  },
  "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 integer key",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "​2",
      "output": "2",
      "input_codepoints": "U+200B U+0032",
      "output_codepoints": "U+0032",
      "status": "Removed 1 invisible character",
      "before": {
        "keys": [
          "10",
          "a",
          "​2"
        ],
        "entries": [
          [
            "10",
            "ten"
          ],
          [
            "a",
            "letter"
          ],
          [
            "​2",
            "incoming"
          ]
        ],
        "serialized": "{\"10\":\"ten\",\"a\":\"letter\",\"​2\":\"incoming\"}"
      },
      "after": {
        "keys": [
          "2",
          "10",
          "a"
        ],
        "entries": [
          [
            "2",
            "incoming"
          ],
          [
            "10",
            "ten"
          ],
          [
            "a",
            "letter"
          ]
        ],
        "serialized": "{\"2\":\"incoming\",\"10\":\"ten\",\"a\":\"letter\"}"
      }
    },
    {
      "label": "Canonical integer",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "2",
      "output": "2",
      "input_codepoints": "U+0032",
      "output_codepoints": "U+0032",
      "status": "No selected invisible characters found",
      "before": {
        "keys": [
          "2",
          "10",
          "a"
        ],
        "entries": [
          [
            "2",
            "incoming"
          ],
          [
            "10",
            "ten"
          ],
          [
            "a",
            "letter"
          ]
        ],
        "serialized": "{\"2\":\"incoming\",\"10\":\"ten\",\"a\":\"letter\"}"
      },
      "after": {
        "keys": [
          "2",
          "10",
          "a"
        ],
        "entries": [
          [
            "2",
            "incoming"
          ],
          [
            "10",
            "ten"
          ],
          [
            "a",
            "letter"
          ]
        ],
        "serialized": "{\"2\":\"incoming\",\"10\":\"ten\",\"a\":\"letter\"}"
      }
    },
    {
      "label": "Leading zero",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "02",
      "output": "02",
      "input_codepoints": "U+0030 U+0032",
      "output_codepoints": "U+0030 U+0032",
      "status": "No selected invisible characters found",
      "before": {
        "keys": [
          "10",
          "a",
          "02"
        ],
        "entries": [
          [
            "10",
            "ten"
          ],
          [
            "a",
            "letter"
          ],
          [
            "02",
            "incoming"
          ]
        ],
        "serialized": "{\"10\":\"ten\",\"a\":\"letter\",\"02\":\"incoming\"}"
      },
      "after": {
        "keys": [
          "10",
          "a",
          "02"
        ],
        "entries": [
          [
            "10",
            "ten"
          ],
          [
            "a",
            "letter"
          ],
          [
            "02",
            "incoming"
          ]
        ],
        "serialized": "{\"10\":\"ten\",\"a\":\"letter\",\"02\":\"incoming\"}"
      }
    },
    {
      "label": "Ordinary label",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "two",
      "output": "two",
      "input_codepoints": "U+0074 U+0077 U+006F",
      "output_codepoints": "U+0074 U+0077 U+006F",
      "status": "No selected invisible characters found",
      "before": {
        "keys": [
          "10",
          "a",
          "two"
        ],
        "entries": [
          [
            "10",
            "ten"
          ],
          [
            "a",
            "letter"
          ],
          [
            "two",
            "incoming"
          ]
        ],
        "serialized": "{\"10\":\"ten\",\"a\":\"letter\",\"two\":\"incoming\"}"
      },
      "after": {
        "keys": [
          "10",
          "a",
          "two"
        ],
        "entries": [
          [
            "10",
            "ten"
          ],
          [
            "a",
            "letter"
          ],
          [
            "two",
            "incoming"
          ]
        ],
        "serialized": "{\"10\":\"ten\",\"a\":\"letter\",\"two\":\"incoming\"}"
      }
    }
  ]
}