Glow My Teammates

Make teammates glow for each other — and decide exactly who sees that glow, on which entities, and whether the locator bar follows the same rules.

A server-side Fabric mod for Minecraft 26.1 / 26.2 built on the vanilla /team system. No custom team management, no client mod required.

What it does

• Players in the same team see each other glowing (the vanilla 0x40 glow flag, customized per viewer).
• Glow is opt-in per team: only teams you enable through /teamglow team add participate.
• Nothing about vanilla behavior changes until you enable something.

Feature overview

Requirements

Works on dedicated servers, singleplayer and LAN worlds. The mod also loads on the client side of a singleplayer session, but all logic runs on the integrated server — vanilla clients on a server can connect without installing anything.

Quick start

1. Create teams with vanilla commands:

   /team add red
   /team join red @a
   

2. Enable glow for the team:

   /teamglow team add red
   

3. Done — teammates now glow for each other.

Commands

Every command is gated by a permission node under glow-my-teammates.command.*, compatible with LuckPerms. Without a permission mod, commands fall back to vanilla OP checks: management commands need OP level 2, read-only commands are available to everyone.

Feature switches

Config file

Stored per world at <world>/glow-my-teammates.json. Example for mod version 1.1.1 (config schema [1, 1]):

{
  "enabled": true,
  "teams": [
    "red",
    "blue"
  ],
  "configVersion": [1, 1],
  "config": {
    "locatorBarTeammatesOnly": false,
    "nonPlayerGlow": false
  }
}

• configVersion is the disk schema version. Configs written before it existed are migrated automatically on first load — you never have to edit the file by hand.
• Edits made by commands are written atomically (temp file + atomic move); if writing fails, you are told in chat instead of silently losing the change.

How it interacts with vanilla

• Vanilla glowing is untouched. Spectral arrows, potions, /effect glowing and setGlowingTag still work — the mod only adds or clears its own bit on top.
• /team remove <team> cleans up immediately. When a team is deleted, viewers stop seeing the glow right away (no stale glow until re-login).
• No client mod needed. The glow flag is just an entity-data bit; vanilla clients render it natively. Server-side translations (English & Simplified Chinese) mean even command feedback shows readable text on vanilla clients.
• No self-glow in third person. A glowing player does not see their own glow in F5 view — only teammates do. Deliberate: self always receives the no-glow variant.
• Network footprint. For each glowing entity, every data update sends one extra tiny packet per teammate. Negligible for small groups; on servers with dozens of players and many glowing entities (or mob glow on dense farms) the extra bandwidth adds up — keep glow enabled only for the teams that need it.

Built with

This mod was built with OpenCode and Claude Code using the DeepSeek V4 model.

License

CC0-1.0