CodeTrain

Claude and Codex is costing me so much, would love to give this a try

I like the idea of helping developers learn instead of just generating code automatically. A few real-world project examples on the landing page would make the value even clearer.

The instant run/test loop after each small step is what makes this click typing the code yourself with immediate feedback beats passively accepting AI suggestions. urious how the tutor handles repos with weak test coverage: does repo mode still grade steps reliably there?

Just giving it a try—I realized it’s what I wanted to build before.

Just giving it a try—I realized it’s what I wanted to build before.

Really interesting—you can create some truly unique and personalized QR codes with it

it has done great work to create unique QR codes

Simple and practical for learning code.

Think of it as a strict but caring personal tutor: miss a step and it fires Socratic questions to make you think; get stuck and it shrinks the step until you can win. Ten sessions on CodeTrain will teach you more than a hundred sessions of blindly copying AI output

The instant run/test loop after each small step is what makes this click — typing the code yourself with immediate feedback beats passively accepting AI suggestions. Curious how the tutor handles repos with weak test coverage: does repo mode still grade steps reliably there?

Shrinking the step when someone gets stuck is the part most tutoring tools skip. Does the tutor grade against the repo's own tests in repo mode?

The insistence on having developers type and test each small step is a thoughtful way to preserve understanding while using AI. The repo-mode reviewable patch also sounds useful for keeping changes inspectable. How do you handle projects whose existing test suite is incomplete or slow?

waw you have sandbox mode, its speechless for me

I like the idea of helping developers learn instead of just generating code automatically. A few real-world project examples on the landing page would make the value even clearer.

interesting product for coding

I love this. As a software developer i can feel my skills eroding with AI, think this would really help maintain them before it's too later

I came up with CodeTrain as the natural solution to help fill the knowledge gaps AI coding tools can create. Skill atrophy related to AI tool usage is real, and tools like CodeTrain can help real dev teams use AI tools to accelerate their workflows while still understanding the code.

The step-by-step approach is a strong answer to skill atrophy from AI coding tools. Keeping developers in the editor and grading each small change makes the learning loop concrete. A short sample lesson on the landing page would make the experience even easier to understand before signing up.

I like this Idea, it will help developers

CodeTrain has great potential and offers some useful features, but I encountered a few issues that could be improved. Please contact me so I can share detailed feedback and suggest the changes I'd like to see. Email: [email protected]

Local-first execution is the detail I like most — code never leaving the machine on the free tier, and even Pro just sending small prompt snippets rather than the whole repo. That's a real point of difference from most "paste your code into our AI" tools, especially for teams onboarding on proprietary codebases.

What an amazing idea! would love to give this a try~

#1 of the day on Fazier!!!! (post is a little late I know) Thanks to everyone who checked it out. If you have not, the thing you can now do without an account is a full lesson on the landing page: codetrain.ai/#try