There are currently 3,496 packages available to extend Atom, including one that offers autocomplete for WordPress hooks. Joe Hoyle, co-founder of Human Made and contributor on the WP REST API project, is the author of the package, which has been downloaded 1,295 times to date. As you’re typing in Atom, WordPress actions and filters appear as a dropdown with short descriptions for each.
Packages published to Atom.io are available for installation via the Preferences > Settings > Install menu. Simply visit this screen and search for “autocomplete-wordpress-hooks” to add the package to your editor.
If you find any bugs with the package, you can report them on the Autocomplete WordPress Hooks GitHub repository. For more open source packages related to WordPress development, check out the Atom.io package library.