Glue code is pretty easily split up into a stack. 90% of what I’ve worked on has been glue code. To ship your change you need to update what’s there already.

Glue code is pretty easily split up into a stack. 90% of what I’ve worked on has been glue code. To ship your change you need to update what’s there already. Tool A needs an integration point. Tool B needs a hook added. Tool C finally joins A to B. Implementing the bits for A and B found two useful refactorings in each codebase. At the end of it all there was also some dead code. That’s 8 commits. The downside is you end up yak shaving a lot.