{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "causation_id": {
      "anyOf": [
        {
          "pattern": "^evt_[0-7][0123456789abcdefghjkmnpqrstvwxyz]{25}$",
          "type": "string"
        },
        {
          "type": "null"
        }
      ]
    },
    "correlation_id": {
      "pattern": "^(mres|ws|usr|prod|rev|ver|rel|env|dep|srf|acc|ses|inv|exe|evt|pend|ddl|ntf|pipe|fnd|qual|cred|bind|hdl|cap|svc|frz|adj|fix|upl|dom|wb|ctx|aud|pay|ivc|rfd)_[0-7][0123456789abcdefghjkmnpqrstvwxyz]{25}$",
      "type": "string"
    },
    "event_id": {
      "pattern": "^evt_[0-7][0123456789abcdefghjkmnpqrstvwxyz]{25}$",
      "type": "string"
    },
    "event_type": {
      "pattern": "^H-\\d{3}(\\.[a-z][a-z0-9_]*){1,4}$",
      "type": "string"
    },
    "idempotency_key": {
      "maxLength": 256,
      "minLength": 1,
      "type": "string"
    },
    "occurred_at": {
      "format": "date-time",
      "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z))$",
      "type": "string"
    },
    "payload": {
      "additionalProperties": {},
      "propertyNames": {
        "type": "string"
      },
      "type": "object"
    },
    "producer": {
      "enum": [
        "shared-kernel",
        "identity",
        "make",
        "deliver",
        "use",
        "platform",
        "runner"
      ],
      "type": "string"
    },
    "schema_version": {
      "pattern": "^(0|[1-9]\\d*)\\.(0|[1-9]\\d*)\\.(0|[1-9]\\d*)$",
      "type": "string"
    },
    "workspace_id": {
      "anyOf": [
        {
          "pattern": "^ws_[0-7][0123456789abcdefghjkmnpqrstvwxyz]{25}$",
          "type": "string"
        },
        {
          "const": "ws_platform",
          "type": "string"
        }
      ]
    }
  },
  "required": [
    "event_id",
    "event_type",
    "schema_version",
    "occurred_at",
    "producer",
    "workspace_id",
    "correlation_id",
    "causation_id",
    "idempotency_key",
    "payload"
  ],
  "type": "object"
}