This mod forces a player to use the correct tool when mining a block, this is determined by the tags of the block and the tool that the player is using. Any blocks tagged with `mineable/xyz` will be mineable with an item tagged with `tools/xyz` or `tools/xyzs` (i.e a dirt block with `minecraft:mineable/shovel` can be mined with a tool with `forge:tools/shovels`). Do note that sometimes these tags by default won't work the way you might expect, for example most crops are tagged with `minecraft:mineable/axe` so even those do require a tool of an axe.
If you'd like a block to be mineable by hand, like default, just add the `mineable/hand` tag to the block.