Class1.cs

using System;
using System.Collections.Generic;
using TShockAPI;

namespace MyTShockPlugin
{
    [APIVersion(1, 25)]
    public class MyPlugin : TerrariaPlugin
    {
        public override string Author => "YourName";
        public override string Description => "My First TShock Plugin";
        public override string Name => "MyPlugin";
        public override Version Version => new Version(1, 0, 0, 0);

        public MyPlugin(Main game) : base(game)
        {
            Order = 1; 
        }

        public override void Initialize()
        {
            
            Commands.ChatCommands.Add(new Command(
                permissions: new List<string> { "myplugin.use" },
                cmd: MyCommand,
                "mycommand", "mc"
            ));

       
            TShockAPI.GetDataHandlers.PlayerUpdate += OnPlayerUpdate;
            
            TShockAPI.TSPlayer.All.SendSuccessMessage($"[{Name}] Plugin loaded!");
        }

        protected override void Dispose(bool disposing)
        {
            if (disposing)
            {
                TShockAPI.GetDataHandlers.PlayerUpdate -= OnPlayerUpdate;
            }
            base.Dispose(disposing);
        }

        private void MyCommand(CommandArgs args)
        {
            args.Player.SendSuccessMessage("Hello from my plugin command!");
        }

        private void OnPlayerUpdate(object sender, TShockAPI.GetDataHandlers.PlayerUpdateEventArgs args)
        {
            
        }
    }
}