Place your detector rails on top of a colored block (wool, concrete, concrete powder, terracotta, glazed terracotta) and it will not activate when players are passing by without them holding that exact item in their main hand.
Only required on the server, but adding it to the client will make it work in singleplayer.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.19, 1.19.1, 1.19.2
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Ships as coloredraildetector-1.0.0.jar — drop this file into the mods folder
- Download size: 85 KB
- Download link checked 31 Aug 2026 — working
These come from our own check of the pack file, not from the source page.