{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://azzle.protocol/xmtp/task-counter-offer/v1",
  "title": "TaskCounterOffer",
  "type": "object",
  "required": ["type", "task", "settlementDigestPreview"],
  "properties": {
    "type": { "const": "azzle/TaskCounterOffer" },
    "task": { "$ref": "https://azzle.protocol/standards/task-schema/v2" },
    "settlementDigestPreview": { "type": "string", "pattern": "^0x[a-fA-F0-9]{64}$" },
    "rationale": { "type": "string", "maxLength": 4000 },
    "expiresAt": { "type": "string", "format": "date-time" }
  }
}