Purpur Sentinel
Passive, explainable movement-pattern observation for Purpur servers.
Sentinel gives permitted operators bounded evidence of repeated suspicious on-foot horizontal movement. It does not cancel movement, punish players, persist player evidence, or export telemetry.
Development
Requires Java 25 and Node.js 20.
./gradlew clean check jar
The output JAR is written to build/libs/. Production installation and deployment are separately gated operations.