Telegram MCP Server

Instructions

Implementation Reference

• src/index.ts:403-421 (handler)

  The handler for 'send_reaction' tool that calls TelegramBot.setMessageReaction to add the specified emoji reaction to the given message ID in the channel and returns a success message.

  case 'send_reaction': {
    const { message_id, emoji } = args as {
      message_id: number;
      emoji: string;
    };
    
    await bot.setMessageReaction(CHANNEL_ID, message_id, {
      reaction: [{ type: 'emoji', emoji: emoji as any }],
    });
    
    return {
      content: [
        {
          type: 'text',
          text: `✅ Reaction sent successfully!\n\n📱 Channel: ${CHANNEL_ID}\n📝 Message ID: ${message_id}\n😀 Emoji: ${emoji}`,
        },
      ],
    };
  }

• src/index.ts:136-149 (schema)

  The input schema for the send_reaction tool defining the required message_id (number) and emoji (string) parameters with descriptions.

  inputSchema: {
    type: 'object',
    properties: {
      message_id: {
        type: 'number',
        description: 'ID of the message to react to',
      },
      emoji: {
        type: 'string',
        description: 'Emoji to send as reaction (e.g., 👍, ❤️, 😂)',
      },
    },
    required: ['message_id', 'emoji'],
  },

• src/index.ts:133-151 (registration)

  The tool registration in the ListTools response, including name, description, and input schema for send_reaction.

  {
    name: 'send_reaction',
    description: 'Send a reaction to a message',
    inputSchema: {
      type: 'object',
      properties: {
        message_id: {
          type: 'number',
          description: 'ID of the message to react to',
        },
        emoji: {
          type: 'string',
          description: 'Emoji to send as reaction (e.g., 👍, ❤️, 😂)',
        },
      },
      required: ['message_id', 'emoji'],
    },
  },
  {