{
  "schema_version": "0.1",
  "message_id": "msg-threshold-intro-gideon-irene",
  "type": "intro",
  "sender": {
    "identity": "nadia@mail.example",
    "display_name": "Nadia Farouk",
    "verification_level": "oauth",
    "profile_url": "https://nadia-farouk.example"
  },
  "recipient": {
    "identity": "gideon@mail.example",
    "profile_url": "https://gideon-park.notion.example"
  },
  "via_pool": {
    "url": "https://latesupper.example/pools/tuesday-table.json",
    "id": "tuesday-table",
    "name": "The Tuesday Table"
  },
  "sent_at": "2026-09-28T09:00:00Z",
  "subject": "Gideon, meet Irene",
  "body": {
    "content_type": "text/plain",
    "content": "Gideon, meet Irene. Irene, meet Gideon. You both said yes, so here you are. Nadia"
  },
  "transport": {
    "type": "email",
    "message_headers": {
      "X-Kindling-Thread": "intro-tuesday-table-gideon-irene"
    }
  }
}