# Task Tag ALL code in the following files. Choose whether a code fragment **primarily** responsible for either change detection or reactive behavior of signals. - main file - its first template Tag by selecting code, then use shortcuts: - *Alt-H:* mark selected code as change detection - *Alt-J:* mark selected code as reactive behavior - *Alt-K:* remove mark from selected code or use the right-click context menu. ## Up Next [Evaluate Results](edit://demos/stefan/aexpr-diss-inter-tagger-reliability/auswertung.md)