Function Permission Level
A simple mod that changes the function-permission-level to 4 in integrated servers (single player and LAN).
About this Mod
Function Permission Level
This is a simple mod that changes the function-permission-level to 4 in integrated servers (i.e. single player and LAN).
The mod is intended for data pack developers that are making data packs that go into servers to be tested easily in single player or LAN worlds. The creator of this mod does not encourage you to use this as a runtime mod.
Notes
This mod only changes the permission level in integrated servers, and thus only affects single player and LAN worlds. Installing it on servers has no effects.
Modrinth: https://modrinth.com/mod/function-permission-level
GitHub: https://github.com/Dahesor/function-permission-level
Currently for fabric 1.21.4+
Available Versions
How to Install Function Permission Level on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.8).
Install Mod
Open the mod browser in the dashboard and search for "Function Permission Level". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.8, 1.21.7, 1.21.6 (+2 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Function Permission Level server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.8). You can switch loaders with one click in the panel.
Is Function Permission Level compatible with fabric?
Function Permission Level officially supports fabric for Minecraft 1.21.8, 1.21.7, 1.21.6. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Function Permission Level – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Function Permission Level consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Install Function Permission Level with just one click on your server.