{
"kind": "callback_request",
"expect": "invalid",
"expect_error": "empty sentinel string in field `request.invocation_id`",
"description": "empty sentinel string for invocation_id must be rejected",
"data": {
"schema_version": "lifeloop.v0.2",
"event": "session.starting",
"event_id": "evt-1",
"adapter_id": "codex",
"adapter_version": "0.1.0",
"integration_mode": "native_hook",
"invocation_id": ""
}
}