How do I regenerate help tags for every installed plugin in one command?

Explanation

Plugin help can break after manual installs, local plugin development, or branch switches that add/remove docs. When tags are stale, :help jumps fail even though the help files are present. :helptags ALL rebuilds tag indexes across every help directory in your runtime path so plugin docs become searchable again immediately.

How it works

:helptags ALL

• :helptags scans a doc directory and generates its tags file
• ALL tells Vim to process all valid help doc directories in the current runtime path
• Existing tags are replaced with fresh indexes, including newly added topics

Example

Before:

:help myplugin-feature
E149: Sorry, no help for myplugin-feature

After running :helptags ALL:

:help myplugin-feature
"myplugin-feature" help opens correctly

Tips

• Run this after adding plugins manually under pack/*/start or pack/*/opt
• If you only changed one plugin, target just that plugin's doc/ directory with :helptags {dir}
• This command is safe to re-run whenever help navigation feels out of date