Please cite SAGA whenever you use it for your publications:

Clipping of vector layers with a polygon layer.
Uses the free and open source software library Clipper created by Angus Johnson.

Name	Type	Identifier	Constraints
Input
Clip Features	shapes, input	CLIP
Input Features	shapes, input	S_INPUT
Input Features	shapes list, input	M_INPUT
Output
Output Features	shapes, output	S_OUTPUT
Output Features	shapes list, output	M_OUTPUT
Options
Dissolve Clip Features	boolean	DISSOLVE	Default: 1
Multiple Input Features	boolean	MULTIPLE	Default: 1