CommandKit

CommandKit is a client-side Fabric library for Minecraft 26.2 that provides a reusable and flexible API for adding custom command completions to client mods.

It allows developers to define command trees with aliases, nested subcommands, multiple argument types, dynamic player suggestions, and server or context-based conditions. CommandKit integrates with Minecraft's existing command suggestions, preserving vanilla and server-provided completions whenever no local definition matches.

Designed to be used as a standalone library, CommandKit makes it easy for client-side mods to add rich, context-aware command completion without implementing their own command suggestion system.