I am trying to add the saw from Silent Gear to work with the cutting board to get bark.
Looking at the recipe file, it uses the:
"type": "farmersdelight:item_ability",
"action": "axe_strip"

How does one add the axe.strip to the saw?

From what I am seeing, the saw is already part of the axe_dig action on other curring recipes.

From what I can see, the saw already has minecraft:axe tags on it.

Tool actions are added in-code, so you would need the Silent Gear dev to add this action; I assume they decided not to intentionally. Otherwise, you would need an add-on for it, can't be done through datapacks.

There is a possibility that I might create a "fallback" tag for this type of ingredient sometime, but it's not currently planned.

Also, for future references: please open a Discussion for this type of question next time, as this board is only for issues.