Here's one I find doesn't get enough credit: Reading comprehension. That can be interpreted as reading someone else's code, but even more importantly: Just bei

Here's one I find doesn't get enough credit: Reading comprehension. That can be interpreted as reading someone else's code, but even more importantly: Just being able to understand plain English (or whatever human language). I've seen so much code that used an API incorrectly, or misunderstood (or simply ignored) documentation. Being able to RTFM, imo, is essential. See also: Understanding what your boss wants and delivering it.