A safe modding workflow depends on context. A familiar file name is not enough; you should know which project it belongs to, what Minecraft version it targets, which loader it needs and whether it is source code or a compiled release.
Use documentation to confirm progression and requirements
A wiki or project documentation can help with both gameplay progression and technical requirements. For installation, focus on version labels, loader support and required dependencies before following any guide copied from another version.
Use Modrinth-style metadata as a compatibility clue
A reputable project listing typically identifies Minecraft version, loader and required dependencies. For the original Alex’s Caves project, those details point back to Java Edition 1.20.1 and Forge/NeoForge support with Citadel requirements on original builds.
Do not trust edition labels that contradict the file format
If a download claims to be Bedrock or Minecraft PE but arrives as a Java JAR, the labels do not match. Likewise, a Windows EXE is not the normal format for a Java mod JAR.
Check community ports independently
Fabric and 1.21.x ports can be real projects, but evaluate the port’s maintainer, source, dependency list and issue history independently. Original-project documentation does not automatically guarantee a port.
Keep recoverable backups
Before adding, updating or removing a world-generation mod, copy your saves and instance configuration. A backup is the simplest protection against version mistakes, missing blocks or a failed migration.
Next step
Return to the main compatibility section before downloading so you can compare edition, Minecraft version, loader and file type in one place.