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  "title": "donutgram native plugin page v1",
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          "if": {
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    "maximumNodeDepth": 6,
    "rootNodeDepth": 0,
    "maximumTotalNodes": 128,
    "uniqueNodeIds": true,
    "noControlOrBidiDisplayText": true,
    "stringLengths": "utf16 code units; standard JSON Schema maxLength counts code points",
    "numericControl": "minimum < maximum; step <= maximum-minimum; <=1e6 steps; value in bounds and aligned within1e-6",
    "select": "value equals one typed scalar option; omitted value means null",
    "image": "opaque generation-owned installed raster handle, no URL/path"
  },
  "description": "run dgplugin validate-ui for relational, UTF16, total-node, id, depth and encoded-size constraints; native validation remains authoritative"
}