NoPlugins

With this plugin, your players won't be able to see your plugins by using /pl or /plugins, unless they have a certain permission. This plugins also has a configuration option to block /? and /help, which show your plugins.

Features:

Really easy to use.
No need to worry about color codes an commas while writing the fake plugins.
Blocking /help is configurable.
Blocking /? is configurable.
Message shown when user uses /help and /? is configurable (Supports color codes!).
Really lightweight.
Only two permissions!
Few commands!
Config can be reloaded!
Console will always be able to see real plugins.
Players with a permission can see real plugins!

Commands:

The /?, /help and /pl or /plugins already exist, so the plugin itself only creates one command in the game:

/pluginhider reload - Reloads config

Permissions:

pluginhider.admin - Allows you to reload the Configuration.
pluginhider.realpl - Lets a user always see the real plugins.

Installation:

This plugin is easy to install, just stop your server, place the plugin jar file in your "plugins" folder, and start your server again! You'll see that the folder for the plugin will be generated, as well as the config.yml!

How to use:

Open the configuration file, and you will see different annotations. Each one explains fully each option. Modify the config as you wish, and if your server is online, use /pluginhider reload, otherwise, just start your server. After that, you're done!