Skript is a Bukkit plugin which allows server admins to customize their server easily, but without the hassle of programming a plugin or asking/paying someone to program a plugin for them.
on tab completer for "/help":
if argument at 1 is "help":
if argument at 2 is not set:
add "lol" to completions
add "lolipop" to completions
add "lolswag" to completions
add "test" to completions
add "testing" to completions
add "evenmoretesting" to completions
and error; http://hastebin.com/ziduribaja.vbs
Skript 2.2 V8b