{
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "$id": "https://firmtape.com/contracts/public/events/alerts/wall_break.schema.json",
 "title": "wall_break",
 "description": "Sent when the price breaks above the call wall or below the put wall and holds it.",
 "allOf": [
  {
   "$ref": "envelope.schema.json"
  }
 ],
 "properties": {
  "type": {
   "const": "wall_break",
   "description": "`wall_break`."
  },
  "direction": {
   "enum": [
    "above",
    "below"
   ],
   "description": "`above` the call wall or `below` the put wall."
  }
 },
 "x-when": [
  "The new side has held for twenty seconds, so a level flickering under the price says nothing.",
  "SPX and ES: checked every five seconds against the book rebuilt every second. Other symbols: their five-minute book, named in `levels_asof`.",
  "The same event is not sent again for that symbol within fifteen minutes."
 ],
 "x-features": [
  "level-alerts",
  "webhooks"
 ],
 "examples": [
  {
   "version": 1,
   "id": "evt_3f9a0c6e21d4b7a8e5f10c2d",
   "type": "wall_break",
   "symbol": "SPX",
   "price": 6751.5,
   "book": "volume",
   "ts": "2026-10-09T14:32:05-04:00",
   "day": "2026-10-09",
   "levels": {
    "flip": 6715.5,
    "call_wall": 6750,
    "put_wall": 6700,
    "put_support": 6700
   },
   "level": {
    "kind": "call_wall",
    "value": 6750
   },
   "direction": "above",
   "text": "SPX broke above the call wall 6,750.00"
  }
 ],
 "x-source": "alerts",
 "x-product": "live",
 "x-plan": "live",
 "x-version": 1,
 "x-since": "2026-10-11",
 "x-switch-on": "Account, Level alerts: a webhook address, and the event on the watchlist."
}