Joseki, when to tenuki, when not, example 2
After kakari, Black can tenuki. If White continues she usually plays a double kakari . After pincer, White can also tenuki, but usually she doesn't: has taken away one of her two options, namely extend to the side, so grabbing the remaining option, jumping into the corner, is common. The jump to b, as is documented on the joseki page, is less popular these days but still played.
After , , , or neither will tenuki: Black because otherwise White connects to her stone. White because otherwise Black locks her into the corner and takes influence towards all sides.
After at a, Black often tenukis: the joseki more or less comes to an end, now that territory and influence are shared. Black d, White 'e'' next are a common but not that frequent continuation, and often occur later in the game.