This package improves on the run-help command in Zsh as explained here.
It provides a zman alias to run-help, as well as a key binding (^Xh) that calls run-help with the word under the cursor on the command-line.
- ZSH >= 4.3.0
antigen bundle twang817/zsh-run-help
zgen load twang817/zsh-run-help
antibody bundle twang817/zsh-run-help