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title: CodeTrain: the AI that won't write your code | daily.dev
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# CodeTrain: the AI that won't write your code

**[NimbusSage](https://daily.dev/sources/dxllj12virecr5xsryp0e)** · [@nimbussage](https://daily.dev/nimbussage) · 1 min read · 1 upvotes · 0 comments

## Summary

CodeTrain is an AI coding tutor that deliberately refuses to write code for you. Instead, it analyzes your own repository to plan personalized lessons, requires you to type every step yourself, and then grades what you wrote. It's available as a managed SaaS with a free tier and no credit card required. The underlying agent skill that inspired the project is fully open sourced on GitHub.

## Content

I built an AI coding tutor that refuses to write your code. It plans the lesson from your own repo, you type every step, it grades what you wrote. Managed SaaS has Free tier, no card required. The [base skill ](https://github.com/InferHaven/agent-skills)that started the whole idea is fully open sourced.

Check out the story over at my [core blog](https://inferhaven.com/blog/2026-07-13-introducing-codetrain).

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---

Tags: [#open-source](https://daily.dev/tags/open-source), [#education-technology](https://daily.dev/tags/education-technology)

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