Send Message

{
  "type": "object",
  "properties": {
    "channel": {
      "type": "string",
      "description": "Channel ID to send to"
    },
    "text": {
      "type": "string",
      "description": "Message text (supports mrkdwn)"
    },
    "thread_ts": {
      "type": "string",
      "description": "Thread timestamp to reply to"
    },
    "unfurl_links": {
      "type": "boolean",
      "description": "Unfurl URLs"
    },
    "end_user_id": {
      "type": "string",
      "description": "End-user ID for per-user OAuth token resolution"
    }
  },
  "required": [
    "channel",
    "text"
  ],
  "description": "Input schema for the slack:send-message tool."
}