Autocomplete Command Blacklist
Every Minecraft server administrator knows the feeling: a player joins, presses Tab, and suddenly your entire command tree is on display. Plugin commands, administrative tools, teleport utilities, and everything in between appear in that little suggestion window. The Autocomplete Command Blacklist add-on exists to solve exactly that problem. It is a lightweight, server-side utility that lets you decide which root commands players can see when they use tab completion, keeping your server's inner workings out of casual view.
What Does This Add-On Actually Do?
At its core, the mod intercepts the command suggestion packets that a server sends to connected clients. When a player starts typing a slash command and presses Tab, the server normally responds with a list of matching commands. The Autocomplete Command Blacklist filters that list before it ever reaches the player, removing any root command nodes you have marked as blocked.
The configuration is refreshingly straightforward. On first launch, the mod generates an autocomplete-blacklist.txt file inside your config folder. That file includes built-in instructions explaining exactly what to write. You simply add the root command nodes you want hidden, one per line. Want to hide weather? Add it. Want to hide time? Add that too. The moment a command appears on the list, it stops being sent to clients for autocompletion purposes.
Why Root Commands and Not Subcommands?
Minecraft's autocomplete system works on a tree structure. When you block a root node such as weather, the entire branch beneath it disappears from suggestions. This means you do not need to list every variation or argument separately. One line in the text file handles the whole command family, which keeps your blacklist short and easy to maintain even on heavily modded servers.
Supported Versions and Loaders
The add-on is built for modern Minecraft releases and works across both Fabric and NeoForge, covering the 1.20.x and 1.21.x branches. Because it operates entirely on the server side, players do not need to install anything on their own clients. They can join with a vanilla launcher and still benefit from the filtered suggestions. This makes it an excellent fit for public survival worlds, SMP communities, and modded packs where you want a clean, professional command experience without forcing extra downloads on your player base.
Installation Walkthrough
Learning how to install the Autocomplete Command Blacklist takes only a few minutes, even if you have never added a server-side mod before.
- Download the correct build for your Minecraft version and loader from the project page.
- Place the jar file into your server's mods folder.
- Restart the server so the mod can generate its configuration files.
- Open config/autocomplete-blacklist.txt and add your blocked root commands, one per line.
- Save the file and run /reload or restart once more to apply the changes.
If you ever want to verify the filter is working, join with a second account, type a slash, and press Tab. Blocked commands simply will not appear. There is no error message, no visual glitch, and no indication that anything was hidden, which is precisely the point.
A Note on Permissions
This add-on is not a permissions plugin. It does not stop players from running commands they already have access to; it only removes those commands from the suggestion list. If your goal is true access control, pair it with a proper permission manager. Think of the blacklist as a curtain rather than a locked door, useful for reducing clutter and hiding administrative tooling from curious eyes.
Managing Your Blacklist Over Time
As your server grows, your command list grows with it. New plugins introduce new root nodes, and old ones may be removed. Reviewing your blacklist every few months keeps it accurate. A good habit is to keep a short comment at the top of the file noting why each command was hidden, especially on servers with multiple staff members who might otherwise wonder about an entry.
For administrators who prefer a smoother setup, the foxygame.net launcher offers a one-click install path that drops Autocomplete Command Blacklist straight into the correct folder and keeps it updated automatically as new Minecraft releases arrive. It also flags version compatibility issues before they cause a failed server start, which saves a lot of guesswork when you are juggling several mods at once.
When you download Autocomplete Command Blacklist for Minecraft, you are getting a small tool with a narrow purpose, and that focus is its greatest strength. It does one job, does it quietly, and never interferes with gameplay. For any server owner who values a tidy command interface and a bit of healthy mystery around their backend, this add-on earns its place in the mods folder.
Final Thoughts
Tab completion is a convenience most players never think about, but it is also an information leak. The Autocomplete Command Blacklist closes that gap with a plain text file and a handful of lines. Install it, list the commands you want hidden, and enjoy a cleaner, more controlled server environment.