Smoke Bomb

Summary

Players can now craft Smoke Bombs with the Tinkering skill
In order to use a Smoke Bomb, players must have at least 80 Hiding and 80 Stealth skill
Players can double-click a Smoke Bomb to make a normal Hiding skill check (treated as if they pressed the Hiding skill button), which if they succeed they will become Hidden, and then immediately make an additional free Stealth skill check to enter Stealth
Players cannot use a Smoke Bomb immediately after Stealing from another player, and must wait the normal 10 seconds skill cooldown after stealing from a player before they may use a Smoke Bomb
Players can type [SmokeBomb to search their backpack for a Smoke Bomb and double-click it

The player must have at least 80 Hiding Skill and 80 Stealth Skill
The player is in an area that allows for the Hiding skill to be used as normal
The player is not waiting for any skill cooldowns (i.e. they could normally make a Hiding skill attempt)
The player is not Flagged in PvP
They are not inside a house
Players cannot use a Smoke Bomb if they have used an Adventurer's Rope or cast the Teleport spell in the last 5 seconds
There is a 10 second cooldown that must pass after using the Detect Hidden skill before a player may use a Smoke Bomb

Normally, players will fail their Hiding attempt if there is a hostile player or creature within 12 tiles of the player that is within LOS (line of sight)
However, when using a Smoke Bomb, all non-tamed/non-summoned creatures will be ignored for the 12 tile LOS check (i.e. the player can Hide even right next to an aggressive creature)

If the player successfully makes the Hiding skill check and then successfully makes the Stealth skill check, the Smoke Bomb is consumed and they can make stealth movement immediately
There is a 2 minute cooldown between successful uses of Smoke Bombs
In PVM, this cooldown can be reduced by upgrading Without a Trace in Thieves_Codex.