Posted by svara 19 hours ago
Ask HN: How is AI-assisted coding going for you professionally?
If you've recently used AI tools for professional coding work, tell us about it.
What tools did you use? What worked well and why? What challenges did you hit, and how (if at all) did you solve them?
Please share enough context (stack, project type, team size, experience level) for others to learn from your experience.
The goal is to build a grounded picture of where AI-assisted development actually stands in March 2026, without the hot air.
I only use Claude Code with Opus 4.6 on High Effort.
I always, ALWAYS treat my “new job” as writing a detailed ticket for whatever it is I need to do.
I give the model access to a DB replica of my prod DB that I create manually.
I do NOT waste time with custom agents, Claude.md files or any of that stuff.
When I put ALL of the above together, the results ARE THE PROMISED LAND: I simply haven’t written a single line of code manually in the last 3 months.
For me I have been a coder since a very young age and I am nearing the end of my career now. I still love writing code to problem solve just as much as the first day I learnt to code. The thought of something taking that task away from me doesn't fill me with glee.
A parallel for me is if I enjoyed puzzle pages and those brought me with joy and satisfaction employing my grey matter to solve, I just wouldn't find it interesting to have an agent complete the forms to me, with me simply guiding the agent to clues.
My solution was to write code to force the model down a deterministic path.
It’s open source here: https://codeleash.dev
It’s working! ~200k LOC python/typescript codebase built from scratch as I’ve grown out the framework. I probably wrote 500-1000 lines of that, so ~99.5% written by Claude Code. I commit 10k-30k loc per week, code-reviewed and industrial strength quality (mainly thanks to rigid TDD)
I review every line of code but the TDD enforcement and self-reflection have now put both the process and continual improvement to said process more or less on autopilot.
It’s a software factory - I don’t build software any more, I walk around the machine with a clipboard optimizing and fixing constraints. My job is to input the specs and prompts and give the factory its best chance of producing a high quality result, then QA that for release.
I keep my operational burden minimal by using managed platforms - more info in the framework.
One caveat; I am a solo dev; my cofounder isn’t writing code. So I can’t speak to how it is to be in a team of engineers with this stuff.
No AI used.
Metaphorically speaking, you’re out there sprinting on the road while people who’ve made agentic coding work for them are sipping coffee in a limo.
People who haven’t made agentic coding work (but do it anyway) are sipping coffee in the back of a limo that has no brakes. No thanks to that.
My workday is fairly simple. I spend all day planning and reviewing.
1. For most features, unless it's small things, I will enter plan mode.
2. We will iterate on planning. I built a tool for this, and it seems that this is a fairly desired workflow, given the popularity through organic growth. https://github.com/backnotprop/plannotator
- This is a very simple tool that captures the plan through a hook (ExitPlanMode) and creates a UI for me to actually read the plan and annotate, with qol things like viewing plan diffs so I can see what the agent changed.
4. Do a lot of this / multitasking with worktrees now.
Worktrees weren't something I truly understood the value of for a while, until a couple weeks ago, embarrassingly enough: https://backnotprop.com/blog/simplifying-git-worktrees/
For personal projects and side company, I get to join in on some of the fun and really multiply the amount of work I can get through. I tend to like to iterate on a project or code base for awhile, thinking about it and then tearing things down and rebuilding it until I arrive at what I think is a good implementation. Claude Code has been a really great companion for this. I'd wager that we're going to see a new cohort of successful small or solo-founder companies that come around because of tools like this.
For work, I would say 60% of my company's AI usage is probably useless. Lots of churning out code and documents that generate no real value or are never used a second time. I get the sense that the often claimed "10x more productive" is not actually that, and we are creating a whole flood of problems and technical debt that we won't be able to prompt ourselves out of. The benefit I have mostly seen myself so far is freeing up time and automating tedious tasks and grunt work.
Managment uses it to make mock websites then doesn't listen when we point out flows, so nothing new there
Some in digital marketing are using it for data collection/anlysis, but it reaches wrong conclusions 50% of the time (their words) so they are slowly dropping it and using it for meneal tasks and simple automations
In design we had a trial period but has the same issue as coding: either it makes something a senior designer could have made in 2 minutes or it introduces errors that take a long time to fix, to then do it again the next prompt
we are a senior dev team, although relative small, and to me it seems like it only really works as a subsitute for junior devs... but the point of junior devs is to grow someone into a senior with the knowledge you need in the company so i don't really get the usecase overall
My observations:
1. What works for me is the usual, work iteratively on a plan then implement and review. The more constraints I put into the plan the better.
2. The biggest problem for me is LLM assuming something wrong and then having to steer it back or redoing the plan.
3. Exploring and onboarding to new codebases is much faster.
4. I don’t see the 10x speedup but I do see that now I can discard and prototype ideas quickly. For example I don’t spend 20-30 minutes writing something just to revert it if I don’t like how it looks or works.
5. Mental exhaustion when working on multiple different projects/agent sessions is real, so I tend to only have one. Having to constantly switch mental model of a problem is much more draining than the “old” way of working on a single problem. Basically the more I give in into vibing the harder it is to review and understand.
What works:
-Just pasting the error and askig what's going on here.
-"How do I X in Y considering Z?"
-Single-use scripts.
-Tab (most of the time), although that doesn't seem to be Claude.
What doesn't:
-Asking it to actually code. It's not going to do the whole thing and even if, it will take shortcuts, occasionally removing legitimate parts of the application.
-Tests. Obvious cases it can handle, but once you reach a certain threshold of coverage, it starts producing nonsense.
Overall, it's amazing at pattern matching, but doesn't actually understand what it's doing. I had a coworker like this - same vibe.
But even with Opus 4.6 max / GPT 5.4 high it takes time, you need to provide the right context, add skills / subagents, include tribal knowledge, have a clear workflow, just like you onboard a new developer. But once you get there, you can definitely get it to do larger and larger tasks, and you definitely get (at least the illusion) that it "understands" that it's doing.
It's not perfect, but definitely can code entire features, that pass rigorous code review (by more than one human + security scanners + several AI code reviewers that review every single line and ensure the author also understands what they wrote)
At least at my company the problem is the business hasn’t caught up. We can code faster but our stakeholders can’t decide what they want us to build faster. Or test faster or grasp new modalities llms make possible.
That’s where I want to go next: not just speeding up and increasing code quality but improving business analytics and reducing the amount of meetings I have to be in to get business problems understood and solved.
I have to think like micro-manager, coming up with discrete (and well-defined) tasks for the AI to do, and I periodically review the code to make it cleaner/more efficient.
But I'm confident that it is saving me time. And my love for programming has not diminished. I'm still driving the architecture and writing code, but now I have a helper who makes progress in parallel.
Honestly, I don't want to go back.
Personally, it’s been decent for generating tedious boilerplate. Though I’m not sure if reading the docs and just writing things myself would have been faster when it comes time to debug. I’m pretty fast at code editing with vim at this point. I’m also hesitant to feedback any fixes to the AI companies.
I’ve found “better google” to be a much more comfortable if not faster way to use the tools. Give me the information, I’ll build an understanding and see the big picture much better.