Slack MCP Server

MIT License

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send_list_message

Send formatted list messages to Slack channels, including a title, items, and optional description. Reply within threads using thread timestamps for organized communication.

Instructions

Send a formatted list message.

Args: channel: Channel ID or name title: List title items: Newline or comma-separated list items description: Optional description text thread_ts: Thread timestamp for replies (optional)

Input Schema

Name	Required	Description	Default
`channel`	Yes
`description`	No
`items`	Yes
`thread_ts`	No
`title`	Yes

Input Schema (JSON Schema)

{
  "properties": {
    "channel": {
      "title": "Channel",
      "type": "string"
    },
    "description": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "default": null,
      "title": "Description"
    },
    "items": {
      "title": "Items",
      "type": "string"
    },
    "thread_ts": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "default": null,
      "title": "Thread Ts"
    },
    "title": {
      "title": "Title",
      "type": "string"
    }
  },
  "required": [
    "channel",
    "title",
    "items"
  ],
  "type": "object"
}

MCP directory API

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