{
  "diagram": "ea202923-0031-4000-8000-000000000100",
  "node": {
    "id": "NEW_NODE_UUID",
    "alias": "view_sa_receive",
    "element": "ea202923-0031-4000-8000-000000000051",
    "position": {
      "x": "BOUND_POSITION_X",
      "y": "BOUND_POSITION_Y"
    },
    "size": {
      "width": 224.0,
      "height": 94.0
    },
    "collapsed": false
  },
  "fresh_identity_rule": "Bind exactly one new UUIDv4 and finite position within the predeclared fixed box only after complete Project comparison succeeds; no other substitutions. Undo restores B exactly; Redo/reopen reuse exact UUID and numeric position.",
  "position_rule": {
    "target": {
      "x": 500.0,
      "y": 350.0
    },
    "maximum_absolute_error_per_axis_world_units": 1.0,
    "requires_finite": true,
    "metric": "abs(x-500)<=1 and abs(y-350)<=1; closed axis-aligned box fixed before launch",
    "pre_input_requirement": "Record current canvas screen-to-world calibration, physical pixel scale, chosen integer-pixel click and predicted rounding bound before input. If reliable targeting within the fixed box is not feasible, zoom/recalibrate before input; never expand the box after observing output.",
    "binding": "Accept actual x,y only together with the single fresh UUID after complete Project equality with the frozen parameterized expected Project succeeds. Preserve exact JSON numeric values in create-new binding; all later P checkpoints require them exactly. No rounding or normalization of actual values."
  }
}