Here's mine fully deployed, https://hackernewsanalyzer.com/. I use it daily and have some users. ~99.7% LLM code. About 1 hour to first working prototype then another 40 hours to get it polished and complete to current state.
It shows, quite an interesting wrapper over GPT with unauthorized access to prompting it you assembled there ;) Very much liked the part where it makes 1000 requests pulling 1000 comments from the firebase to the client and then shoots them back to GPT via supabase
41 hours total of prompting, looking at code diffs, reverting, reprompting, and occasional direct code commits. I do review the full code changes nearly every step of the way and often iterate numerous times until I'm satisfied with the resulting code approach.
Have you tried to go back to the old way, maybe just as an experiment, to see how much time you are actually saving? You might be a little surprised! Significant "reprompting" time to me indicates maybe a little too much relying on it rather than leading by example. Things are much faster in general if you find the right loop of maybe using Claude for like 15%-20% of stuff instead of 99.7%. You wouldn't give your junior 99.7% ownership of the app unless they were your only person, right? I find spending time thinking through certain things by hand will make you so much more productive, and the code will generally be much better quality.
I get that like 3 years ago we were all just essentially proving points building apps completely with prompts, and they make good blog subjects maybe, but in practice they end up being either fragile novelties or bloated rat's nests that end up taking more time not less.
I’ve done things in days that in the before times would have took me months. I don’t see how you can make that time difference up.
I have at least one project where I can make that direct comparison - I spent three months writing something in the language I’ve done most of my professional career in, then as a weekend project I got ChatGPT to write it from scratch in a different language I had never used before. That was pre-agentic tools - it could probably be done in an afternoon now.
I'm not a fulltime developer, but manage a large dev team now. So, this project is basically beyond my abilities to code myself by hand. Pre llm, I would expect in neighborhood of 1.5-2 months for a capable dev on my team to produce this and replicate all the features.
