curl --request POST \
  --url https://api.reply.io/v3/ai-sdr/knowledge-bases/{knowledge_base_id}/reengagement-cards \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "30-day silent prospect",
  "instructions": "Gentle nudge with new case study; no hard ask.",
  "sendAfter": 30,
  "toneOfVoice": "empathetic",
  "responseLength": "short",
  "links": [
    "https://example.com/case-study-northstar"
  ],
  "isEnabled": true,
  "isAutoSend": false
}
'

{
  "id": "9c1f8a7e-0b3a-4d11-9b9c-2c4f8a7e0b3a",
  "name": "30-day silent prospect",
  "instructions": "Gentle nudge with new case study; no hard ask.",
  "sampleAnswer": "Hi {{firstName}}, just sharing a quick case study...",
  "sendAfter": 30,
  "toneOfVoice": "empathetic",
  "responseLength": "short",
  "links": [
    "https://example.com/case-study-northstar"
  ],
  "media": [
    {
      "id": 12345,
      "fileName": "case-study-thumbnail.png",
      "size": 248
    }
  ],
  "isEnabled": true,
  "isAutoSend": false,
  "createdAt": "2026-05-10T14:32:11Z"
}