Hello, I checked the crafting guide, and found many physical and magical tools. But these are some suggestions about edge tools.
1. You can throw an edge tool which you’re holding.
2. There may be some knifes to chop plants or slash.
3. Another tool may be spears, to extend a range beyond a simple sword range.
4. Bone may be used to make edge tools.
5. Wooden edge tool may be harden by the fire harden process.
PS. Some mods were found so far.
https://content.minetest.net/packages/Echoes91/spears/ or https://gitlab.com/echoes91/spears.git