Features
Mani Admin Plug-in is a feature rich menu driven administration tool for games based on the Source Engine. Most of them are handled via admin/immunity flags within the clients.txt and cvars available in the mani_server.cfg. After the installation of Mani Admin Plug-in, please have a look at the .html files generated from the plug-in itself located in youmod/cfg/mani_admin_plugin/data/ for some furhter information. A short extract:

Admin Features
Slay
Kick
Ban
Slap
Freeze
Burn
Teleport
Mute
Drug
Blind
Burn
No Clip
Timebombs (Slay, Freeze, Burn)
High Ping Kicker
Reserve Slot Management
Autoobserve players in spectator mode
Autobalance teams when a team has more players than the opposition
Autokick/ban of players with offensive names
War Mode for clan wars with overview_mode enforcement
Weapon Restrict (per map / per default for all maps / per number pro team / per wins)
Play Sound (unlimited sounds)
Explode effect
Say (from console or in game using @)
Admin only Say (from console or in game using @)
Rcon commands and menu lists
Plug-in control
Execute commands on player clients or whole teams via menu and client console
Restrictions on what admins can do
Admins added by IP Address and/or Steam ID, Name and Password combination for LAN users
Setup feature restrictions for different admins
Use of aliases within config files to make menu system easier to use
Logging to separate files for admin commands
General admin features

General Features
Cronjob support
No .Res files required for sounds
Adverts
Nextmap (console or from say command)
Listmaps (console)
Votemap (console or from say command)
TheTime (console or from say command)
Timeleft (console or from say command)
Damage (console or from say command)
Settings (console or from say command)
ATAC style team kill/team wound protection (compatible with bots)
Statistics (top/rank/statsme) also dumped to text file, can be done for online servers using steam id, or LAN servers by name
Talk directly to admins in game using @ message
Compatible with bots
Quake style “Headshot”, “Multi-Kill”, “Rampage” sounds
Use of Valves built in browser
Setup web shortcuts to link to your clan page
Anti-ghosting functionality

Map specific features
Restrict weapons on map load
Execute rcon commands on map load (sv_gravity, mp_freezetime etc)
Map adverts (images)
Custom skins only available for specific maps