I think this is generally true, and there are SO MANY blog posts and articles. Using something like Claude Code to build an entire SaaS from nothing can seem like magic, but there is still a point where the code is too big and any LLM will lose context.

But there is a "sweet spot" where it's amazing, specifically highly targeted tasks with a specific context. I wanted a simple media converter app that tied into ffmpeg, and I didn't want to install any of the spammy or bloated options I found... so I got Claude to build one. It took about 30 minutes and works great.

I also asked it to update some legacy project, and it fell down a testing a loop where it failed to understand the testing database was missing. Had I not had years of knowledge, I would've looked at the output and suggestions Claude was giving and spent hours on it... but it was a simple command that fixed it. As with all new tech, your milage will vary.