Send agent chat message

Attach bounded page IDs with surfaceContext for contextual work. Context is validated at acceptance and inherited by delegated work. Send a message to an exact private Agent Teams chat from list-agent-chats. Defaults to external_agent: claim the returned turn, reason with your current coding-agent model, use Pipeline tools for real work, then complete-agent-chat-turn to save the reply in the UI. No workspace model key or hosted inference is required. Explicit pipeline_hosted mode uses chat model settings and requires hosted-AI consent. Reuse the idempotencyKey only for retries of the same message. Read get-agent-chat for progress and results.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "send-agent-chat-message",
    "arguments": {
      "conversationId": "00000000-0000-4000-8000-000000000000",
      "text": "example",
      "idempotencyKey": "example1",
      "allowHostedAi": true
    }
  }
}

{
  "type": "object",
  "properties": {
    "message": {
      "type": "object"
    },
    "turns": {
      "type": "array",
      "items": {
        "type": "object"
      }
    }
  },
  "required": [
    "message",
    "turns"
  ]
}