bonespurs-1.0-SNAPSHOT.jar is a release file of the Minecraft plugin Survival but you have bone spurs, made for Minecraft 1.16. It was published on October 27, 2020 and is 0 MB in size. For the full description, screenshots and every other version, visit the Survival but you have bone spurs plugin page.
How to install: Put the .jar into the plugins folder of your Paper, Spigot or Bukkit server and restart the server.