Entrance condition:

"comeInWithGrappleSwing": {
  "blocks": [{"position": [13, 5], "environment": "water", "note": "Mt. Everest"}]
}

Requires:

"canPreciseGrappleJump"

Dev note: This can work from other setup rooms, but it would have no purpose coming from an air room, since you could just do a running jump through the door and airball.