zsh-completions

Completion scripts for hundreds of commands Zsh does not ship definitions for.

What it does

A community collection of _command completion functions — cloud CLIs, package managers, build tools, language toolchains — that Zsh’s bundled set does not cover. Installing it is a matter of putting its directory on fpath before compinit runs.

# ~/.zshrc, before compinit
FPATH="/opt/homebrew/share/zsh-completions:$FPATH"
autoload -Uz compinit && compinit

Notes

If completions stop updating after an install, the cache is stale: rm -f ~/.zcompdump* and start a new shell.

Alternative to

Alternative	Type	Trade-off
oh-my-zsh or prezto	Open source	Frameworks that bundle these completions among much else
zinit or antidote	Open source	Plugin managers that can load them on demand
Fish	Open source	Generates completions from man pages automatically