operators.json

{
  "PROJECTION": "$,$elemMatch,$meta,$slice",
  "QUERY": {
    "COMPARISON": "$gt,$gte,$in,$lt,$lte,$ne,$nin",
    "LOGICAL": "$and,$nor,$not,$or",
    "ELEMENT": "$exists,$type",
    "EVALUATION": "$mod,$regex,$text,$where",
    "GEOSPATIAL": "$geoIntersects,$geoWithin,$nearSphere,$near",
    "ARRAY": "$all,$elemMatch,$size",
    "COMMENT": "$comment",
    "MODIFIERS": "$comment,$explain,$hint,$maxScan,$maxTimeMS,$max,$min,$orderby,$query,$returnKey,$showDiskLoc,$snapshot",
    "SORT": "$natural"
  },
  "UPDATE": {
    "FIELDS": "$currentDate,$inc,$max,$min,$mul,$rename,$setOnInsert,$set,$unset",
    "OPERATORS": "$,$addToSet,$pop,$pullAll,$pull,$pushAll,$push",
    "MODIFIERS": "$each,$position,$slice,$sort",
    "BITWISE": "$bit",
    "ISOLATION": "$isolated"
  },
  "PIPELINE": {
    "STAGE": "$geoNear,$group,$limit,$match,$out,$project,$redact,$skip,$sort,$unwind",
    "BOOLEAN": "$and,$not,$or",
    "SET": "$allElementsTrue,$anyElementTrue,$setDifference,$setEquals,$setIntersection,$setIsSubset,$setUnion",
    "COMPARISON": "$cmp,$eq,$gt,$gte,$lt,$lte,$ne",
    "ARITHMETIC": "$add,$divide,$mod,$multiply,$subtract",
    "STRING": "$concat,$strcasecmp,$substr,$toLower,$toUpper",
    "TEXT": "$meta",
    "ARRAY": "$size",
    "VARIABLE": "$let,$map",
    "LITERAL": "$literal",
    "DATE": "$dayOfMonth,$dayOfWeek,$dayOfYear,$hour,$millisecond,$minute,$month,$second,$week,$year",
    "CONDITIONAL": "$cond,$ifNull",
    "ACCUMULATORS": "$addToSet,$avg,$first,$last,$max,$min,$push,$sum"
  }
}