mcp-discord

Instructions

Implementation Reference

• src/discord_mcp/server.py:205-226 (registration)

  Registration of the 'add_reaction' tool including its input schema definition in the list_tools() function.

  Tool(
      name="add_reaction",
      description="Add a reaction to a message",
      inputSchema={
          "type": "object",
          "properties": {
              "channel_id": {
                  "type": "string",
                  "description": "Channel containing the message"
              },
              "message_id": {
                  "type": "string",
                  "description": "Message to react to"
              },
              "emoji": {
                  "type": "string",
                  "description": "Emoji to react with (Unicode or custom emoji ID)"
              }
          },
          "required": ["channel_id", "message_id", "emoji"]
      }
  ),

• src/discord_mcp/server.py:566-573 (handler)

  The handler logic in call_tool() that executes the add_reaction tool: fetches channel and message, adds the specified emoji reaction, and returns a confirmation.

  elif name == "add_reaction":
      channel = await discord_client.fetch_channel(int(arguments["channel_id"]))
      message = await channel.fetch_message(int(arguments["message_id"]))
      await message.add_reaction(arguments["emoji"])
      return [TextContent(
          type="text",
          text=f"Added reaction {arguments['emoji']} to message"
      )]