When using a Silent Gear hoe in the harvester pylon, it continues to function even when the hoe is broken, allowing the use of a cheap wooden hoe without ever needing to replace it. I experienced it in AllTheMods 10, Pylons version 5.1.1, in minecraft version 1.21.1

In 5.2.0 I have added a tag allowing for banning these. It will not be enabled by default until 1.22 to prevent breaking existing worlds, but modpack authors can ban it themselves by adding the following tag entry to data/pylons/tags/item/harvester_banned.json in a datapack folder:

{
  "values": [
    {
      "id": "silentgear:hoe",
      "required": false
    }
  ]
}