ChestWarning
by Mintype
ChestWarning shows a one-time warning to a player who opens a chest for the first time on a server, to discourage accidental griefing.
What it does
Before a player's first attempt to open any chest or trapped chest on a Fabric server, the mod catches that right-click and shows a notice about server rules on stealing. The warning is shown once per player, so later openings behave as normal.
The mod is intended for server administrators who want a clear, one-time notice in place of relying on written rules alone. It is server-side only, so players join without installing anything. Fabric API must be placed in the mods folder alongside it. Builds cover 1.21.11 and 26.2, and the latest file is 1.0.0 for 26.2, published on 2026-07-05. ChestWarning is released under the MIT License and is open source.
Key features
First-interaction warning
The first right-click on any chest, trapped or not, shows the player a warning instead of opening it.
Action interruption
The first chest-opening action is cancelled until the player acknowledges the warning, so the chest does not open silently.
Persistent warned status
Each player's warned status is stored through the Fabric Data Attachment API in a data file, so the warning is not repeated after a restart.
Lightweight server mod
The mod is small and touches only the first interaction with a chest, leaving the rest of the chest behavior unchanged.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Protecting shared storage
Server owners can use the warning on community servers where players sometimes open chests that belong to others by accident.
Who it’s for: Server administrators running Fabric servers who want to add a one-time notice about server rules before players open chests.
How it compares
No Fortune Chest is a client-side only Fabric mod under the GNU General Public License v3.0 or later, with files for 1.20.4 – 26.3, so it changes the client rather than the server. StaffSee - Server Moderation is server-side only under the MIT License and covers 1.21.7 – 26.2, but it provides moderation tools rather than a chest warning. Chest Frame+ is client-side only under the MIT License and targets 26.1.2 – 26.2, so it adds visuals and does not affect chest access on the server.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| ChestWarning | Fabric | 1.21.11 – 26.2 | Server-side only | 2026-07-05 |
| No Fortune Chest | Fabric | 1.20.4 – 26.3 | Client-side only | 2026-09-18 |
| StaffSee - Server Moderation | Fabric | 1.21.7 – 26.2 | Server-side only | 2026-07-07 |
| Chest Frame+ | Fabric | 26.1.2 – 26.2 | Client-side only | 2026-06-18 |
Questions
Does ChestWarning need Fabric API?
Do players need to install ChestWarning?
Will the warning appear again after a server restart?
In the catalog
ChestWarning is one of 8,016 Management mods on ModsFinder, and one of 5,930 Management mods for Fabric. 13,894 mods support Minecraft 26.2.
Similar mods
What the author says
A lightweight Fabric 1.21.11 mod designed for server administrators to prevent accidental griefing. It ensures every player receives a clear, one-time warning about stealing and server rules the first time they attempt to open a chest. Contributions are welcome! Feel free to open an issue or submit a pull request.
Official listing
- Modrinth page
- modrinth.com/mod/chestwarning
- Owner
- Mintype
- Published
- 2026-01-12
- Updated on Modrinth
- 2026-07-05
- Facts verified
- 2026-10-15