Reply to Slack Thread

Instructions

Implementation Reference

• index.ts:277-282 (handler)

  The async handler function that executes the slack_reply_to_thread tool, calling slackClient.postReply() and returning the response.

  async ({ channel_id, thread_ts, text }) => {
    const response = await slackClient.postReply(channel_id, thread_ts, text);
    return {
      content: [{ type: "text", text: JSON.stringify(response) }],
    };
  }

• index.ts:271-275 (schema)

  The input schema for the slack_reply_to_thread tool, defining channel_id (string), thread_ts (string), and text (string) parameters with Zod validation.

  inputSchema: {
    channel_id: z.string().describe("The ID of the channel containing the thread"),
    thread_ts: z.string().describe("The timestamp of the parent message in the format '1234567890.123456'. Timestamps in the format without the period can be converted by adding the period such that 6 numbers come after it."),
    text: z.string().describe("The reply text"),
  },

• index.ts:266-283 (registration)

  The registration call for the slack_reply_to_thread tool via server.registerTool(), including the name, metadata (title, description), inputSchema, and handler.

  server.registerTool(
    "slack_reply_to_thread",
    {
      title: "Reply to Slack Thread",
      description: "Reply to a specific message thread in Slack",
      inputSchema: {
        channel_id: z.string().describe("The ID of the channel containing the thread"),
        thread_ts: z.string().describe("The timestamp of the parent message in the format '1234567890.123456'. Timestamps in the format without the period can be converted by adding the period such that 6 numbers come after it."),
        text: z.string().describe("The reply text"),
      },
    },
    async ({ channel_id, thread_ts, text }) => {
      const response = await slackClient.postReply(channel_id, thread_ts, text);
      return {
        content: [{ type: "text", text: JSON.stringify(response) }],
      };
    }
  );

• index.ts:124-140 (helper)

  The SlackClient.postReply() helper method that makes the actual Slack API call (chat.postMessage) with channel_id, thread_ts, and text parameters.

  async postReply(
    channel_id: string,
    thread_ts: string,
    text: string,
  ): Promise<any> {
    const response = await fetch("https://slack.com/api/chat.postMessage", {
      method: "POST",
      headers: this.botHeaders,
      body: JSON.stringify({
        channel: channel_id,
        thread_ts: thread_ts,
        text: text,
      }),
    });
  
    return response.json();
  }

• index.ts:22-26 (schema)

  TypeScript interface ReplyToThreadArgs defining the type structure for the tool arguments (channel_id, thread_ts, text).

  interface ReplyToThreadArgs {
    channel_id: string;
    thread_ts: string;
    text: string;
  }