The classic Grappling Hook mod with great physics and a wide range of customization. This fork focuses on two things the upstream mod didn't handle well:

Moving structures. Grapple onto Create contraptions, Sable sublevels, and Create: Aeronautics airships. The rope tracks position and rotation, survives sublevel splits, and wraps around partial blocks correctly.
Multiplayer. Hook and rope state is server-authoritative — other players see exactly what you see, hooks survive relogs, and ropes can be cut with shears.

Important notice

This is a CF upload of Grappling Hook Mod: Skybound by WeaversWorkshop, released under the GPLv3 license. I have not been able to contact the author of this fork for a dedicated CF upload, as Modrinth does not provide contact features, and their repository has posts like Issues disabled.

Legacy

Weavers' Grappling Hook is a port of GrappleMod: Skybound (by WeaversWorkshop) which is based on the fork grapplemod-restitched (by CG360 / squeeglii), itself a Fabric port of Yyon's Grappling Hook Mod, which was maintained by Nyfaria till 1.20.1.

I couldn’t reach WeaversWorkshop: Modrinth has no contact option, the repository contains no social links, and github issues are disabled. I’ve also messaged accounts with the same username on multiple platforms without success, so the ownership status of this CF upload remains unresolved.

Features

Grappling Hook with upgrades for motors, rockets, ender teleports, magnets, dual hooks, forcefields, and configurable rope styles.
Long Fall Boots to land safely after a long swing.
All upgrades apply at a vanilla Smithing Table.
Built-in resource pack variants: classic textures, hook-only, no-enchants, classic recipes.
useLimitedHook gamerule for servers that want to restrict where hooks can attach.
A small set of advancements to guide new players.