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...and I still don't get it. I paid for a month of Pro to try it out, and it is consistently and confidently producing subtly broken junk. I had tried doing this before in the past, but gave up because it didn't work well. I thought that maybe this time it would be far along enough to be useful.

The task was relatively simple, and it involved doing some 3d math. The solutions it generated were almost write every time, but critically broken in subtle ways, and any attempt to fix the problems would either introduce new bugs, or regress with old bugs.

I spent nearly the whole day yesterday going back and forth with it, and felt like I was in a mental fog. It wasn't until I had a full night's sleep and reviewed the chat log this morning until I realized how much I was going in circles. I tried prompting a bit more today, but stopped when it kept doing the same crap.

The worst part of this is that, through out all of this, Claude was confidently responding. When I said there was a bug, it would "fix" the bug, and provide a confident explanation of what was wrong... Except it was clearly bullshit because it didn't work.

I still want to keep an open mind. Is anyone having success with these tools? Is there a special way to prompt it? Would I get better results during certain hours of the day?

For reference, I used Opus 4.6 Extended.

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[-] Flames5123@sh.itjust.works 12 points 18 hours ago

I have a full pro model for Kiro at work. It does actually work, but we have custom MCP servers for all the internal tools, context on how to use these tools, style guidelines, etc. and then on top of that we have a lot of AI context files in the code base to help the AI understand the code base and make the correct changes.

I’ve been using it on a side project and it works if you know how to constrain it. It does get things wrong a lot. But the big thing about it is doing spec driven development where you give it a write up and it makes a requirements doc and a design doc with a lot of correctness properties in them to follow when generating and making the tasks.

I don’t believe people can vibe code unless they can actually code. It’s a whole different way of coding. I still manually edit what it does a lot.

A lot of people explain it like it’s a brand new junior developer. You need to give it as much context as possible, tell it to exactly what you want, tell it what you don’t want, tell it why, etc. and it still may not listen exactly.

this post was submitted on 11 Apr 2026
237 points (90.4% liked)

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