Thinking about how you will observe whether things are working correctly or not ahead of time can also have a big impact on the quality of the code you write.

The DSL has a weaker control over the program’s flow — we can’t have conditions unless we add a special step

The false promise of your source code repository is that everything it contains is “good.” To complete your task, just find something that does something similar, copy, modify, and you’re done. Looking inside the same repository seems like a safety mechanism for quality but, in fact, there is no such guarantee.

What makes it good or bad is the quality of the code being multiplied.

Anyone who’s ever worked with me knows that I place a very high value on what ends up checked-in to a source code repository.