I put this in my system prompt: "Never compliment me. Critique my ideas, ask clarifying questions, and offer better alternatives or funny insults" and it works quite well. It has frequently told me that I'm wrong, or asked what I'm actually trying to do and offered better alternatives.

I've used Cursor for months and didn't even realize you could make PRs from it. It's not really part of the default workflow.

Not the OP, but in practice, the comments that tend to help Claude tend to be very different from what helps humans. With humans, I'll generally focus on the why.

Our style guide for humans is about 100 lines long, with lines like "Add a ! to the end of a function name if and only if it mutates one of its inputs". Our style guide for Claude is ~500 lines long, and equivalent sections have to include many examples like "do this, don't do this" to work.

According to CCUsage, I hit limits on Opus usage around the equivalent of $150. If we naively extrapolate, that suggests about $600 of Opus usage per session on Max 20x.

I don't think I would notice a 100% improvement in software productivity in most companies, from the outside. Most of the time, that would just translate to the company being able to hire fewer developers, and having slightly higher profit margins – but not enormously higher, because developers are only one part.

I recently used Claude Code to develop & merge an optimization that will save about $4,000 a month. It was relatively simple but tedious, so I probably wouldn't have done it on my own. I don't even expect most of my coworkers to notice.