wp-cli/wp-cli — pull request #645 by scribu (2013-08-06 21:47:59+00:00)
Title: Commands added by plugins aren't listed in `wp help`

The `wp help` command only lists commands that ship with WP-CLI. If a plugin adds a command it doesn't show up there.

Fairly sure (but not completely sure) that they did show up prior to WP-CLI 0.11.