<!-- Extension API v0 — pre-1.0. Interfaces may change without notice until P2 seals the custom-code format. First-party extensions track HEAD. -->

# `order.refund.request`

Reserve a refund amount on a paid order (intent row = the PSP conversation anchor).

- **scope**: `orders:write`
- **storefront-visible** (bumps the catalog generation): no
- **destructive**: no

## Payload

| field | type | required | notes |
|---|---|---|---|
| `orderId` | string (/^ord_[a-zA-Z0-9]{1,32}$/) | yes |  |
| `refundId` | string (/^ref_[a-zA-Z0-9]{1,32}$/) | yes |  |
| `amountKurus` | integer (0..10000000000000) | yes |  |
| `reason` | string (≤200 chars) | no |  |
| `returnId` | string (/^ret_[a-zA-Z0-9]{1,32}$/) | no |  |

### JSON Schema

```json
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "orderId": {
      "type": "string",
      "pattern": "^ord_[a-zA-Z0-9]{1,32}$"
    },
    "refundId": {
      "type": "string",
      "pattern": "^ref_[a-zA-Z0-9]{1,32}$"
    },
    "amountKurus": {
      "type": "integer",
      "minimum": 0,
      "maximum": 10000000000000
    },
    "reason": {
      "type": "string",
      "minLength": 1,
      "maxLength": 200
    },
    "returnId": {
      "type": "string",
      "pattern": "^ret_[a-zA-Z0-9]{1,32}$"
    }
  },
  "required": [
    "orderId",
    "refundId",
    "amountKurus"
  ],
  "additionalProperties": false
}
```