"Programs must be written for people to read, and only incidentally for machines to execute." - SICP

If you believe this (and I do), then it follows that reading fluently is absolutely critical. One cannot judge writing without being a good reader.

You don't learn to write novels without reading a whole lot of them first. And someone who hates to read is never going to be a great writer.

I disagree that any special tool support is needed. If you depend on any open source library or platform at all, just don't stop bug hunting at the API boundary. Go down inside and see what's really going on.