Glow My Teammates

Teammates glow for each other — a server-side Fabric mod built on the vanilla /team system. No client mod, no custom team management, works on dedicated servers, singleplayer and LAN.

💡 What does it look like?

Members of an enabled team see their teammates outlined in a bright glow, from any distance. Non-teammates see nothing different. The glow is rendered natively by the game — every vanilla client supports it out of the box.

✨ Features

• Per-viewer glow — every player sees their own teammates glowing; nobody else does.
• Opt-in per team — one command enables glow for a team; nothing about vanilla behavior changes until you enable something.
• Mobs can glow too — with non_player_glow, mobs in a glow-enabled team glow for their teammates (off by default).
• Locator-bar filtering — optionally, viewers in glow-enabled teams see only their teammates on the locator bar.
• Fine-grained permissions — every command gated by a permission node, compatible with LuckPerms.
• Vanilla-friendly — the glowing effect and an entity's Glowing tag are never touched. Removing a team via /team remove cleans up instantly — no stale glow.

📦 Requirements

	Minecraft 26.1	Minecraft 26.2	Minecraft 26.3
Fabric Loader	>= 0.19.3	>= 0.19.3	>= 0.19.3
Fabric API	>= 0.155.3+26.1.2	>= 0.157.0+26.2	>= 0.160.3+26.3

Install like any Fabric mod: drop the jar into the server's mods/ folder. Server-side only — players with vanilla clients can connect without installing anything. Command feedback is translated server-side (English & Simplified Chinese).

🚀 Quick start

/team add red
/team join red @a
/teamglow team add red

Done — members of red 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, management commands fall back to OP level 2; /teamglow status is available to everyone.

Command	Permission node (fallback)	Description
/teamglow status	glow-my-teammates.command.status (all)	Show whether team glow is enabled
/teamglow toggle	glow-my-teammates.command.toggle (OP 2)	Toggle team glow globally
/teamglow team list	glow-my-teammates.command.team (OP 2)	List teams with glow enabled
/teamglow team add <team>	glow-my-teammates.command.team (OP 2)	Enable glow for a team (with autocompletion)
/teamglow team remove <team>	glow-my-teammates.command.team (OP 2)	Disable glow for a team (with autocompletion)
/teamglow config list	glow-my-teammates.command.config (OP 2)	List feature switches and their values
/teamglow config get <switch>	glow-my-teammates.command.config (OP 2)	Show one feature switch
/teamglow config set <switch> <true|false>	glow-my-teammates.command.config (OP 2)	Set a feature switch
/teamglow config reset <switch>	glow-my-teammates.command.config (OP 2)	Reset a feature switch to its default

Upgrading from 1.1.x? Permission nodes were consolidated — command.on / .off became command.toggle, and command.team.add / .remove / .list became command.team. Update any LuckPerms grants; command.config is unchanged.

Feature switches

Switch	Default	Effect
non_player_glow	false	Mobs in a glow-enabled team glow for their teammates. Note: every dirty entity-data packet then goes through the mod's per-packet path — keep it off on mob-dense farms unless you actually need it.
locator_bar_teammates_only	false	A viewer in a glow-enabled team sees only their own teammates on the locator bar; members of other teams and teamless players are hidden. Viewers outside glow-enabled teams see everyone, unchanged.

⚙️ Configuration

Stored per world at <world>/glow-my-teammates.json (schema [1, 1]):

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

• Legacy configs are migrated automatically on first load — never edit the file by hand.
• Command edits are written atomically (temp file + atomic move); a failed write is reported in chat instead of silently losing the change.

🤔 Behavior notes

• Vanilla glowing is untouched — the glowing effect and an entity's Glowing tag still work; the mod only adds or clears its own bit on top.
• /team remove <team> cleans up immediately — no stale glow until re-login.
• No self-glow in third person — deliberate; players always receive the no-glow variant for themselves.
• Network footprint — each data update sends one extra tiny packet per teammate. Negligible for small groups; on large servers keep glow enabled only for the teams that need it.

📋 Changelog

See CHANGELOG.md for release notes and breaking changes.