send_inbox_private_reply

Answer a Facebook or Instagram comment with a private DM to its author (Meta Private Replies). Sends a REAL message under the business's name. Meta allows ONE per comment, within 7 days of it — see the item's `actions.privateReply`; refused with the reason otherwise (including "done" when one was already sent). Up to 1000 characters (not silently cut).

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "send_inbox_private_reply",
    "arguments": {
      "id": "string",
      "text": "string"
    }
  }
}

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "content": [
      {
        "type": "text",
        "text": "..."
      }
    ]
  }
}