Tinker Leveling is a rewrite of Tinkers' Tool Leveling for modern Minecraft versions.
Disclaimer: The balance of Tinkers is completely disrupted by this mod. I encourage you to try the new upgrade mechanics in TiC 3 and see what you think of them. If, however, you enjoy the idea of OP tools, carry on. :)
Just like in the original mod, tools gain XP through normal use. Every time the tool levels up, an additional upgrade or ability slot will be added (this alternates with each level).
This initial alpha is being released for 1.18. A backport to 1.16 may be made available in the future.
As this is an unofficial addon, please do not reach out to the Tinkers Construct developers for support, and please be sure to mention that this mod is installed if you do have an issue with Tinkers itself.