OperationEvent

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One event in an operation’s stream. Over SSE each event is sent as id: <seq>, event: <type>, data: <this object as JSON>. Reconnect with Last-Event-ID to resume. The stream ends with an operation.finished event.

Fields

Field	Type	Description
`seq` *	integer
`operation_id` *	string
`type` *	`operation.status`, `step.started`, `step.succeeded`, `step.failed`, `step.retrying`, `progress`, `log`, `approval.requested`, `approval.decided`, `operation.finished`, `heartbeat`
`step`	string or null
`message`	string
`data`	object
`at` *	string (date-time)

* always present

Example

{
  "seq": 7,
  "operation_id": "op_01jbx2m9k7q4r8t5v6w3y0z1op",
  "type": "step.succeeded",
  "step": "build",
  "message": "Built image in 1 min 12 s",
  "data": {
    "image_digest": "sha256:4b1f0e9d8c7b6a5948372615f4e3d2c1b0a9f8e7d6c5b4a3928170f6e5d4c3b2"
  },
  "at": "2026-10-23T14:03:13Z"
}